Bell Ringer's Environmental Science Ch.3,4 by

Due beginning of class 9/8/25

carriefriedline — 2025-09-05 12:58:52 UTC

3.1 summary

masonstrader1 — 2025-09-08 12:48:16 UTC

Chapter 3.1 was primarily about natural selection and how Charles Darwin interpreted that as the reason why evolution happens. The traits that are not valuable to an organism get filtered out, and traits that increase the reproductive abilities of an organism increase because those organisms produce more offspring.

This is mainly about natural selection and mutations. It also talks about evolution and genetic variations. It explains how the environment effects these things and why we have biodiversity and extinction.

2025-09-08 12:48:27 UTC

2025-09-08 12:48:40 UTC

It was mostly about natural selection and also genetic variation. Also about charles darwin and the evidence of natural selection.

3.1 Reading

2025-09-08 12:49:09 UTC

The book says, "Perceiving how species adapt to the environments and change over time is crucial for comprehending ecology and for learning the history of life." The book says that evolutionary processes affect many things regarding environmental science and everyday lives. Natural selection is part of evolution and was first proposed by Charles Darwin and then by Alfred Russel Wallace.

3.1

2025-09-08 12:50:08 UTC

Chapter 3.1 talked about evolution and natural selection. The book believes in evolution and says how it is how some animals came to be, they evolved. This chapter also talks about natural selection, which is animals adapting to their habitat and to the things around them and they change because of these conditions. Evolution is what is believed to bring up certain species and how natural selection has shaped them as well.

Chp. 3.1

hollyhoover1 — 2025-09-08 12:50:17 UTC

The main takeaway was how a lot of things were over harvest like soil, water, and pollute air. And natural disasters happening in the forests are being destroyed and the growth of their habitats.

Species Adaptation

aidankaine — 2025-09-08 12:50:26 UTC

talks about how species adapt to there environment and talks about genetic variation and evolution.

3.1

josephinecarrera — 2025-09-08 12:50:44 UTC

The main message of the reading is about evolution and challenges faced by Hawaii's honeycreepers. It also talks about species developing saying how we have adapted over the years and so have animals.

kaelandentremont — 2025-09-08 12:50:46 UTC

The reading talked about Charles Darwin and how he created the theory of evolution. He studied the birds on this island and they all had traits different to each other and some with the same traits. It talked about mutation that can happen in the DNA.

edenhiebert — 2025-09-08 12:52:24 UTC

This reading was mainly about natural selection and talked about how Charles Darwin perceived it. It also talked about saving Hawaii's native forest birds.

chapter 3.1

danielabeltran9 — 2025-09-08 12:55:49 UTC

chapter 3.1 was written to basically explain natural selection and what the origin of it. It also explained that observing how animals or nature adapts and changes to the certain environments is crucial for science.

chapter 3.1

isabellafulton — 2025-09-08 13:21:19 UTC

How species adapt to there environment over time. Which leads to different appearance and or behavior. They also effect things like environmental health.

2025-09-08 14:09:26 UTC

Something that stood out to me was the word speciation, because I have never heard of that term. Speciation is the process by which new species are generated. In one common mechanism, allopatric speciation, species form in the aftermath of the physical separation of populations over some geographic distance.

oliviareisner — 2025-09-08 14:10:55 UTC

My takeaway from this reading is that we think of natural resources as goods. And that our population is growing and getting bigger. It's also understanding our relationship with the world around us because we focus on our environment with air, water, food etc.

Chapter 3.1

isabellethompson8 — 2025-09-08 16:22:26 UTC

This talked about how things such as natural selection, the environment, artificial selection, genetic modification, and evolution (if it were real) affect different living organisms. It also talked about how some people think that different animals have evolved from one thing to another, even though they have just slightly adapted to the different environments they are in. We see this with the beak length of the birds.

Due beginning of class 9/10/25

carriefriedline — 2025-09-09 20:20:39 UTC

3.1 sum (absent Fri, Sep 5th)

zoeymcguire2 — 2025-09-10 12:45:14 UTC

the 3.1 reading explains the definitions of different possesses and categories of species evolution. though we do not believe in macro evolution like the textbook teaches,it can give incite into different processes in micro evolution which we can see and prove exits.

kaelandentremont — 2025-09-10 12:46:30 UTC

The reading explained what ecology was and how it applied to the environment. It talked about habitats and how each organism played a specific role and had their own purposes also know as a niche. Then they talked about the population and the natural rate of reproduction. Humans can interfere with that rate that the population goes down which can cause endangerment.

Chapter 3.2-3.3 Summary

masonstrader1 — 2025-09-10 12:47:04 UTC

Chapter 3.2-3.3 was about ecology, studying life at all levels from the entire biosphere down to a single organism to determine how they got to where they are, where they are now, and where they will be in the future.

2025-09-10 12:47:32 UTC

It was about ecology and the environment. Talked about species and their habitat. Also what they did for their habitat.

3.2-3.2

josephinecarrera — 2025-09-10 12:49:41 UTC

In 3.2 I learned that ecology is the scientific study of interactions among organisms and their relationships with their environments. I also learned ecology helps explain and or predict the distribution and abundance of organisms. Then in 3.3 I learned, a population consists of individuals of a species inhabiting a specific area at a specific time. Also that population ecologists aim to understand and predict population changes over time.

Chapter 3.1

klintonmccambridge — 2025-09-10 12:50:19 UTC

The main idea of the reading was to explain natural selection and how it happens in nature. It also has a large focus on how to conserve our resources so future generation have them.

3.2-3.3

2025-09-10 12:51:04 UTC

This is about ecology and the ecosystems it entails. It talks about the different needs for different organisms and how they effect their habitats. The population ecology is something I had never heard of, but it is basically predicting how populations will change over time. This predicts things like size, density, distribution, sex ratio, and age structure. Then it just talks about how populations shrink and grow and what effects that.

Ch. 3.2-3.3

2025-09-10 12:52:31 UTC

These chapters had a lot of information about Ecology. Ecology is the scientific study of interactions among organisms and of relationships between organisms and their environments. It also talked about how Hawaii is the perfect spot for evolution. It says how through natural selection and environmental changes, species can change. If a patch of forest gets split in two by lava to create two forests that are isolated for a long time, then the one species of fruit flies that lived in the one forest slowly changed into two different species. It explains how organisms might change due to their environment. For example, if the food source or the weather changed; the organism would change as well.

2025-09-10 12:53:20 UTC

My takeaway from the reading was when it talked about population size, and how resources are abundant and natural enemies are few. Another takeaway was how limiting factors restrain growth.

2025-09-10 12:53:26 UTC

Something that stood out to me is the difference between habitat use and habitat selection. Habitat use is the process by which organisms use habitats from among the range of options they encounter. Habitat selection is he process by which organisms select habitats from among the range of options they encounter.

3.2-3.3 reading

klintonmccambridge — 2025-09-10 12:54:07 UTC

The reading talked about how ecologist s study life on the higher levels of the hierarchy. It also talks about how our population is growing and how we can still help our environment with our growing population.

2025-09-10 12:54:26 UTC

the text talked about how instead of evolving, animals adapt to their environment. this makes the animals look differently which might make it look like it is evolving, but they are really just adapting. it also talks about natural selection.

3.2 - 3.3

2025-09-10 12:56:13 UTC

Section 3.2 talks about ecology and the different studies about it. Ecology is the study of interactions among the organisms with their environment. This section talked about how organisms need a habitat and how they play a certain role. 3.3 talks about whether organisms will grow or not based on how they are living In their environment or habitat. This section mainly talks about if organisms will expand, shrink, or stay the same. Organisms are affected by everything around them and even the littlest things can play a big role in whether they grow, shrink, or remain In population.

michealthomas2 — 2025-09-10 12:56:50 UTC

This reading talked about how certain things like natural selection, artificial selection and more affect different living organisms. Also, how different things evolved from one another, but In my opinion they have just adapted to certain things not evolved.

Ch 3.1

tristantotero — 2025-09-10 13:50:01 UTC

this reading was mainly about natural selection and genetic variation with species. It also talked about Charles Darwins perception on it.

2025-09-10 16:07:54 UTC

This is mainly about how we study ecology at several levels. And that each individual relates to survival and reproduction, A organisms habitat conisst of non-living and living elements around it and talking about what each habait needs the most. Then there's the population of ecology of species that inhabit a particular area in a different time.

oliviareisner — 2025-09-10 16:13:23 UTC

The main idea from this reading is each organism has a habitat that it needs. Then there's a population so as soon as we have seen consists of individuals of a species that inhabit a particular area at a different time.

Chp. 3.2-3.3

hollyhoover1 — 2025-09-11 12:28:25 UTC

3.2 Ecology can describe relationships between organisms. The soil mite focuses on chemistry, moisture, and the texture of it. The Hawaiian honey creeper adapt for feeding on grub.

3.3 The high population makes the density easier for group together and organisms. We can also compare changes to measuring the population. Factors impact a populations growth of rating and carry capacity.

3.2-3.3

isabellafulton — 2025-09-13 01:44:24 UTC

Every organism requires individual aspects to live somewhere. Habitat selection is when they pick a spot and stay there less than moving all the time. Habitat scale also matters for insistence a snake would need less space than an elephant would to live comfortably and free. Some animals like some species of birds change habitats depending on the season to stay comfortable. Habitats are an important topic in environmental science because every creature you are looking at needs something that that environment has there another environment might not have. I wasn't at school Wednesday.

Chapter 3.2-3.3

isabellethompson8 — 2025-09-14 20:34:44 UTC

This talked about how ecology is the study of the interactions among different organisms and their environments. When it comes to ecology, it is important to be able to know the differences between a community, ecosystem, and a habitat. The next section really focused on population ecology. It talked about population size, density, and distribution. It talked about the growth rate of each population while also mentioning immigration, emigration, and carrying capacities.

Due beginning of class 9/18/25

carriefriedline — 2025-09-14 22:30:05 UTC

Due beginning of class 9/24/25

carriefriedline — 2025-09-14 22:30:48 UTC

ch 3.2-3.3

tristantotero — 2025-09-15 13:55:36 UTC

This reading was about ecology, as well as the relationship between species and their habitat. It also talked about population growth and how that can affect the environment.

Chapter 3.2-3.3

danielabeltran9 — 2025-09-15 22:11:11 UTC

This chapter was mainly about species and populations, and how the interact with each other, and how each habitat can effect each other. 3.3 mostly explained in depth population ecology, and everything that comes with it.

Due end of class 9/16/25

carriefriedline — 2025-09-16 12:14:11 UTC

kaelandentremont — 2025-09-16 12:52:44 UTC

The chapter talked about animals and what unique things they can do. They talked about parasites and how they bond with their host. In some cases they need to live together or both could die.

summary of 4.1

klintonmccambridge — 2025-09-16 13:08:49 UTC

In the reading it explained how competition happens in nature when two animals are fighting for the same limited resource. this can harm population growth if one of the animals is better at competition than the other or if there is a lot of animals fighting for this resource. It also talks about predators and prey, and how it is part of nature.

4.1

2025-09-16 13:10:20 UTC

This chapter talks about species interaction and how competition can happen when those resources are limited but this isnt always because species can still coexist if not after the same resources

2025-09-16 13:10:38 UTC

In the reading it talks about the interactions between species and they interact in a variety of ways. Also talks about how when the resources are limited the relationship changes to competition to get whats left of the resources. Talks about predictors and how other animals eat other animals for food. Lastly talks about ecological communities and how food chains work.

ch4.1

tristantotero — 2025-09-16 13:11:11 UTC

This reading talked about competition within an environment. Specifically competing for the limited resources within an environment rather than physically fight. It also talked about predation and how some animals survive by eating other animals, as well as herbivory, when animals survive by only eating plantlike rather than any meat from another animal. Many insects are most commonly herbivores compared to mammals.

4.1 Summary

masonstrader1 — 2025-09-16 13:12:23 UTC

Chapter 4.1 generally pertained to the relationships between organisms. The relationships that it talked about are as follows: mutualism which is when multiple organisms both gain from their relationship, Predation, which is when an organism consumes specifically an animal, Herbivory which is when an organism consumes a plant, parasitism which is when an organism exploits a living host, and finally competition, when two organisms compete over resources leading to their mutual disadvantage.

Chapter 4.1

isabellethompson8 — 2025-09-16 13:12:23 UTC

This talked about the interactions between different species. Oftentimes, different species are very competitive with each other when it comes to things like food, water, shelter, mates, sunlight, etc. We specifically see this with predators who tend to be more violent. The reading also talked about parasites, which are organisms who depend on a "host" (a pathogen). We see this with things like tapeworms. There are also animals that feed on the tissues of plants and those are called herbivores. Overall, each animal has their own way of interacting with others and supporting themselves.

4.1

josephinecarrera — 2025-09-16 13:15:55 UTC

The reading talked about species interactions and some about community ecology. Species interactions are relationships between different species. The parasite depends on another, the host, for nourishment or some other benefit while simultaneously doing the host harm to it.

Ch. 4.1

2025-09-16 13:16:49 UTC

Species interact with each other in many different ways, from Competition to Mutualists, they all interact in some way. Species can compete for resources causing one of them to have a realized niche instead of a fulfilled one, or they can have a Mutualist relationship where they help each other, like the one between plants and fungi.

oliviareisner — 2025-09-16 13:17:22 UTC

My takeaway from this reading is that Mutualists help one another unlike explorative interactions with mutualism thats a relationship in which 2 or even more species benefit from interacting with one another. Another one i found interesting was not all mutualists live in a close proximity, pollination it involves. free- living organisms. that can encounter each. other only once. And how ecology applied to the environment.

2025-09-16 13:17:24 UTC

My takeaway from this is how species interactions are essential to the structure of ecological communities. It talks about how ecologists categorize many interactions into different categories.

4.1 Main ideas

2025-09-16 13:17:26 UTC

This talked about how certain things (like the Asian Carp) effect and change the ecology of an environment. It also talked about competition in environments. When resources are limited it leads to either competitive-exclusion or species coexistence. This chapter focused a lot on how organisms interact when it comes to predators and prey, as well as parasites and hosts. However it kind of switches and starts talking about herbivores and plants. Mutualism is when 2 or more organisms benefit from interacting.

chapter 4.1

danielabeltran9 — 2025-09-16 13:18:01 UTC

The main point of chapter 4.1 was specifically how the Asian carp interacts with other species, and how that causes there to be change in the communities. We also see how ecologists put species interactions into groups and categories.

Chp. 4.1

hollyhoover1 — 2025-09-16 13:18:43 UTC

My main takeaway is how communities have been invaded. Also that competing organisms don't fight together by they are subtle and indirect.

isabellafulton — 2025-09-16 13:20:17 UTC

Different species interacting creates a ecological community. Then scientists put them all in categorizes to organised them.

4.1 Summary

2025-09-16 13:20:36 UTC

4.1 Talks about competition between certain organisms, in this case carp. It talks about competition between a species and different species. 4.1 also talks about the different niches, realized niche(specific) and fundamental niche(general). It talks about predation and parasites and their impact on the environment. Lastly, this section talks about herbivory, the eating of plants, and mutualism among species.

2025-09-16 21:21:11 UTC

I thought it was very interesting when it talked about how some parasites can't even survive without their host. In ceratin situations the host actually needs the parasite to live aswell.

4.2

josephinecarrera — 2025-09-18 12:46:39 UTC

This chapter talked about how a community consists of populations of organisms living in the same area at the same time.Then we talked about how the food web shows feeding relationships and energy flow.

kaelandentremont — 2025-09-18 12:47:07 UTC

This chapter talked about the food chain or food web. The food chain is the predator and the prey and then what the prey hunts. This shows the purposes of all animals and how they all play a role with each and ever organization.

edenhiebert — 2025-09-18 12:48:02 UTC

My takeaway was how communities consist of populations of organisms that live in the same area at the same time. The way species interact determines the way communities function and their structure.

Chapter 4.2 Summary

masonstrader1 — 2025-09-18 12:48:04 UTC

4.2 was mainly about ecological communities and food chains. Specifically, it spoke on how energy decreases at higher trophic levels because so much of it has been used already. In addition to this, it explained how changes can drastically impact communities.

2025-09-18 12:48:12 UTC

This was about how food chains work. Also about prey and how they affect the food chain as well. Also about predictions. Also about the food cycle.

Chapter 4.2

danielabeltran9 — 2025-09-18 12:48:25 UTC

The main point of this part of the chapter talked a lot about the communities and how organism interact with one another. It explained the dynamics and how the communities can change over time.

Reading 4.2

klintonmccambridge — 2025-09-18 12:48:44 UTC

The reading is mainly about food chains and how they are organized in trophic levels. It talks about the diffremt levels aswell as how energy decreases as the level goes up. Food webs can show how energy flows through and ecosystem.

Chp. 4.2

hollyhoover1 — 2025-09-18 12:48:58 UTC

The main takeaway of this was food and consuming. Like deer mice eats grasses and then is consumed by rat snakes. Also a species that is strong or read wide reaching impact out of a proportion in an abundance is called keystone species.

4.2

2025-09-18 12:49:11 UTC

It talks about the food chain and the food web and what that looks like with apex predators and their prey,it also talks about the trophic levels and explaining primary consumers and secondary.

Ch. 4.2

2025-09-18 12:49:16 UTC

Energy and matter pass up through trophic levels in the food web as more organisms are eaten. However, the energy becomes less as it travels higher in levels. Invasive species are very harmful to communities. They are able to adapt easily and take from the resources that other organisms need. Disturbing the balance of communities/ecosystems can result in chaotic and negative events.

4.2

isabellafulton — 2025-09-18 12:50:24 UTC

A community is a variety of different populations who interact with each other. Community ecology is the dynamics of communities.

4.2

2025-09-18 12:50:40 UTC

This is mainly about community ecology. This discusses things like the way organisms interact as prey and predatation. It talks about food chains and trophic levels. As well as, something not as commonly discussed like decomposers and detrivetores. It focuses a lot on the energy flow from organism to organism and what can effect that.

4.2 Summary

2025-09-18 12:51:11 UTC

4.2 starts off by talking about ecological communities and the trophic levels in the food chain. The trophic level is just the rank in the feeding heirarchy/food chain. Primarily 4.3 talks about the community of organisms and the changes and the things even organisms do outside of their community. Overall, 4.3 talks about community between organisms, but the one that stuck out to me the most was trophic levels. They are very interesting to me and I think seeing how the food chain is leveled is cool.

Chapter 4.2

isabellethompson8 — 2025-09-18 16:14:18 UTC

This talked about the organization of different organisms. For example, each organism fits into a different trophic level, which shows what the food chain is like. Organisms can also be organized with a food web. A food web shows what each organism eats, and what eats it. This also talked about how a keystone species is a species that has a strong or wide-reaching impact far out of proportion to its abundance. It also explained what all happens when communities are disturbed.

2025-09-18 16:15:55 UTC

My takeaway from this reading is there's different levels of energy and higher tropical levels. Because within each trophic level in food chain, the organisms use energy in the cellular respiration. Also food webs show feeding relationships and energy flow. How in Figure 4.2 it says it portrays a food web from a temperate deciduous forest of eastern north and involving different kinds of food chains etc.

Chp. 4.3

hollyhoover1 — 2025-09-24 12:43:23 UTC

I think the main takeaway about this was biomes are with trees and plants like tropical rainforests which are oaks, maples, and beaches in mostly North America. It was also interesting because in the desert biome the desert receives under 25 cm per year.

Ch. 4.3

2025-09-24 12:44:58 UTC

The earth's biomes are affected and determined by the climate. The earth has 10 biomes on land and even has biomes in the ocean as well. A few examples of these biomes are grasslands, temperate rain forests, and tundra.

4.3 reading

klintonmccambridge — 2025-09-24 12:45:41 UTC

The main takeaway from the reading was to show how every different are is a different biome. The type of biome is determined by multiple factors that include, temperature, precipitation,soil conditions and wind patterns. It talks about the major types of biomes such as tropical rainforest, temperature, tropical dry forest.

caedmoncarney — 2025-09-24 12:50:52 UTC

the main takeaway that I got from the text was that there are different biomes all over the world. Scientists use climate diagrams to determine the temperature and perpetration to help determine what kind of biome it is.

kaelandentremont — 2025-09-24 13:09:08 UTC

4.3 was about biomes and climate zones. They talked about which one were cold and warm, if their leaves fell off or not. They talked about the factors of each one and how the biomes affect the animals and plants.

Chapter 4.3 Summary

masonstrader1 — 2025-09-24 13:10:09 UTC

In broad summation, chapter 4.3 was about biomes and what can be found in each biome. It spoke about the vegetation in each especially pertaining to the trees in each biome such as coniferous, and decidous trees.

4.3 Summary

2025-09-24 13:11:16 UTC

4.3 talks about biomes and the 10 different sections. The biomes are seperated by climate, soil, wetness and dryness. The thing that stuck out to me the most was the rain shadow effect. The rain shadow effect is when moist air moves up to a steep slope, cools and condenses, and then that causes precipitation. It is super interesting to me how complex the earth is and how precipitation can be produced because of a mountain.

ch.4.3

zoeymcguire2 — 2025-09-24 13:11:42 UTC

This chapter section explains to us about the different types of biomes in each climate. this chapter section was a review of what we learned in 8th Grade earth science.

4.3

lilyglaze — 2025-09-24 13:16:29 UTC

The main point of this was to talk about earth's biomes and what determines this. This also talks about the 10 biomes on earth and how aquatic systems resemble biomes. (My padlet was broke)

4.3

josephinecarrera — 2025-09-24 13:17:14 UTC

In this chapter it talked about the earths biomes. A biome is major regional complex of similar communities and a larger scale ecological unit recognized primarily by its dominant plants types and vegetation structures. We all learned about all 10 of earths biomes and what they are.

oliviareisner — 2025-09-24 13:18:33 UTC

My takeaway from this reading is how different some assemblages of species lead into a variety in the community composition. Biomes also cover each portion of the planet depending on the variety of physical factors including, temperature, precipitation, soil and conditions.

4.3

isabellafulton — 2025-09-24 13:20:15 UTC

A Biome is a broader type of community. Communities are a structure and have close similarities with different communities. The biomes typically have the same plants covering wide spaces of area. Depending on the latitude that will help determine that part of the world's biome because of the temperature and precipitation.

ch 4.2

tristantotero — 2025-09-24 13:56:48 UTC

This reading talked a lot about ecological communities and the food chains within the communities. It also talked about how energy is passed through the food chain.

ch 4.3

tristantotero — 2025-09-25 13:37:27 UTC

This reading talked about the different biomes on earth, and how climate helps determine the biomes. Then it talked about each biome in depth and the differences between them.

Chapter 4.3

isabellethompson8 — 2025-09-25 17:13:20 UTC

This talked about earth’s biomes. A biome is a major regional complex of similar communities. The climate can help determine biomes. Things like temperature, precipitation, soil conditions, wind patterns, and ocean currents all determine biomes. When it comes to temperature and precipitation, scientists use things called climate diagrams to depict information about that. Temperate deciduous forests, temperate grasslands, temperate rainforests, tropical rainforests, tropical dry forests, savannas, deserts, tundras, boreal forests, and chaparrals are all examples of biomes.

2025-09-26 01:15:01 UTC

My main takeaway was the biomes and how there are 10 different biomes. Also that the most important factor in bimones is the temperature and amount of precipitation.