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-terrestrial
-forest
-grassland
-desert
-tundra
-freshwater
-marine

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-crabs
-mushrooms
-earthworms
-termites
-yeasts
-molds

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-bear
-lions
-hamsters
-cats
-dogs
-ducks
-rabbits

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-sea weed
-algae
-green plants
-fruit
-small shrubs
-sun flower
-catctus

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-aryestu
-emoib
-neeroip seicpes

answers:Estuary,biome,pioneer species

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-Half the worlds species lives in tropical rainforests

-Freshwater ecosystems have rare species

-The bottom of the ocean has successful communities

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The importance of ecosystems and communities is that it not only affects us,but it also affects animals.Healthy ecosystems clean our water,purify air,maintain soil,regulate climate,recycle nutrients,and provides us with food.Ecosystems help maintain local diversity within a community either by controlling population,or providing resources for a wide range of species.

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1. What causes a river to meander and what happens as it meanders

Water in the stream channel erodes the sediments of an outer bend of a streambank and deposits this and other sediment on inner bends downstream.The meander may be cut off from the main channel,forming a oxbow lake

2.What is the main difference between primary and secondary succession?

Primary succession is newly exposed by living things for the first time,secondary succession  is already living things that get disturbed

3.Why can photosynthesis take place in the photic zone of the ocean but not the aphotic zone? What type of producers in the aphotic zone if photosynthesis does not take place?

Light cant go that deep in the ocean,parasitic plants

4 explain why  the competitive exclusion principle and why it is important

Two species can't have the same niche and stably coexist ,they would be competing for the same resources

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What are Populations, Communities & Ecosystems?

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Without the greenhouse effect the earth would be about 86 degrees cooler than the temperature right now.

Niche describes how an organism will interact with abiotic and biotic factors the their environment

A succession that begins with no remnants of older communities is called primary succession

A succession that starts again when older communities die ( forest fire) and grows quicker than primary succession is called secondary succession.

Biomes are described with abiotic factors like wind, temperature, and soil. And also by biotic factors like plants and animals.

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niche-organisms occuping different places because each species has a range of conditions where it can grow and reproduce.

competitive exclusion principle-states that no two species can occupy exactly the same niche in the same habitat at the same time.

mutualism-when two species interact with one another and both have equal benefits.

parasitism-when one organism lives inside another organism and harms it,usually weakening the host organism.

commensalism-when one organism benefits and the other is neither helped nor harmed

primary succession-succession that begins with no remnants of an older community

secondary succession-when communities are greatly impacted but not completely destroyed

biomes-described in terms of abiotic factors like climate and soil type,and biotic factors like plants and animals.

weather-atmospheric conditions in a particular region over a short period of time (day-week_

climate-average weather conditions that in a region over a long period of time (30 years or more)