Biology Padlet by Lautaro Navarro Garcia https://padlet.com/st12071851/mr0i0em0an6g6tz0 en-us 2022-09-06 14:47:46 UTC 2025-10-25 16:46:16 UTC hello@padlet.com Cnidaria https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284801985 - Aquatic animals 
-  Cnidocytes
       - Stinging cells 
- One opening for ingestion, excretion and respiration 
- Exist in two different forms 
      - Medusa/free swimming 
      - polyp 
- Ability to reproduce asexually and sexually 

Examples: 
- Physalia physalis ( Portugese man o' war) 
- Sea anemone 
- Box Jellyfish ]]> 2022-09-06 14:53:14 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284801985 platylhelmintha https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284802548 - Platyhelminthes also known as flatworms, are bilaterally symmetrical triploblastic, also they only have a gut inside their body, no other type of of body part or organ exist. they are only a body.
- the flatworm works with diffusion to have its flat look
- their gut and body is also able to move the food all around their body as well
- flatworms are found in oceans, fresh water, and terrestrial habitats 
- have complex life cycles specialized for parasitism in animal tissues
- Platyhelminthes have no fossil record but tend to leave traces of may leave pits or thin spots on the inside of the shell, and these pits may be recognized on fossil shells]]> 2022-09-06 14:53:34 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284802548 Porifera https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284803339 Commonly referred to as sponges, they are one of the oldest known animal fossils, dating from the Late Precambrian (480 million years ago). 
Porifera are essential to the environment as a unique form of a feeding system among aquatic animals, such as sea slugs; various species of fish; and hawksbill turtles. 

Characteristics of Porifera
- Does not have mouths; instead have tiny pores in their outer walls, where water is drawn from
- Cells in the sponge walls filter nutrients from the water and are pumped through the outer pores around the organism to provide the animals
- Flow of the water through the organisms is unidirectional, using the series of canals provided by flagella
- Has defense mechanisms, such as spicules, which are hard skeletal elements
- The structure of the organism is asymmetrical]]> 2022-09-06 14:54:00 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284803339 Example of Porifera https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284839581 Found in deep water, the skeleton of the glass sponge, together with various chemicals, provides defense against many predators.]]> 2022-09-06 15:14:36 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284839581 Example of Porifera https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284840235 Calcareous sponges are the only sponges that possess spicules composed of calcium carbonate and often found in shallow levels of waters]]> 2022-09-06 15:14:59 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284840235 Example of Porifera https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284841282 They have spicules (tiny needle-like structures that support the body's form) of silica dioxide and/or spongin. Demosponges are the sponges most commonly seen whilst diving or walking along the shore.]]> 2022-09-06 15:15:37 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284841282 Example of Cnidaria https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284843903 2022-09-06 15:17:04 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284843903 Example of Cnidaria: https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284846515 2022-09-06 15:18:38 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2284846515 Angiospermophyta https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285425806
Angiospermophytas are vascular plants with stems, roots, and leaves, making up the majority of all plants on earth.

Characteristics of angiospermophytas
- Has vascularization, which is the process of growing blood vessels into the tissue to improve oxygen and nutrient supply.
- Have leaves, roots, and stems
- Reproduce by seeds produced in ovules within flowers
- The pollen grains transfer from the anther to the stigma, and reproduction takes place by pollination. They are responsible for the transfer of genetic information from one flower to the other. The pollen grains are much smaller than the gametophytes or reproductive cells present in the non-flowering plants.
- The stamens (microsporophyll) and the carpels (megasporophyll) are organized into a structure called the flower.
- Some angiospermophytas have thorns to defend themselves.
]]> 2022-09-06 23:00:14 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285425806 Example of angiospermophyta https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285429917 2022-09-06 23:07:05 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285429917 Example of angiospermophyta https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285430699 2022-09-06 23:08:16 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285430699 Example of angiospermophyta https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285432458 2022-09-06 23:10:58 UTC https://padlet.com/st12071851/mr0i0em0an6g6tz0/wish/2285432458