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Pteridophytes

Fern: Most Common Example of Pteridophytes What They Are Pteridophytes are vascular plants that have no seeds. Main features - Chorus composed by root, stem and leaves; - They are tracheophytes, that is, they have a conduction system that transports the sap from the roots to the leaves. In these ducts are also transported food to the rest of the body; - Have leaves divided into leaflets; - New leaves appear rolled up; - Most species have sexual reproduction, but some can reproduce asexually through budding.
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Toxin

Snake venom: large amount of toxins What is toxin Toxin is a poisonous substance produced through the metabolic activity of certain living organisms such as bacteria, insects, plants and reptiles. Knowing Toxins (Characteristics and Important Information): Some bacteria secrete toxins in the colonizing tissues, these are true toxins.
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Bat

Bat: A Flying Mammal Summary of Bat Information and Characteristics: - The bat is a mammal animal that has the ability to fly. - Scholars have cataloged nearly 100,000 species of bats, ranging in color, size, weight and body shape. - They feed mainly on fruits, insects, animal blood (few hematophagous species), fish, nectar and pollen.
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Examples of Vertebrate Animals

Male: example of vertebrate animal (presence of spine and spinal cord) Best known examples of vertebrate animals: MAMMALS - Male - Giraffe - Lion - Possum - Sloth - Armadillo Canastra - Anteater - Bat - Marmoset - Golden Lion Tamarin - Monkey - Maned wolf - Fox - Ocelot - Cat - Jaguar - Leopard - Ferret - Otter - Hippopotamus - Whale - Dolphin - Manatee - Bud - Boar - Deer - Squirrel - Rat - Hedgehog - Ox - Prea - Hare - Paca FISH - Cod - Swordfish - Shark - Tuna - Grouper - Seahorse - Anchovy - Mackerel - Beta Fish - Shrimp - Horsetail - Barracuda - Catfish - Corvina - Eel - Curimbatá - Flounder - Lambari - Moray - Merluza REPTILES - Tortoise - Jabuti - Shit - Tracajá - Alligator - Iguana - Teiú - Calango - Snakes - Boa - Sucuri - Jararaca - Rattlesnake - Surucucu BIRDS - Chicken - Duck - Goose - Ostrich - Quail - Swan - Jacutinga - Mallard - Mutum - Grebe - Macaw - Pap heron - heron - woodpecker - penguin - albratross - parard - flamingo - eagle - owl - vulture - harpy - harpy - hawk - pigeon - seriema amphibians - frog - salamander - frog - protein - frog or frog - snake AGNATES - Ostracodermes - Lampreas - Mixins
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Progesterone

Progesterone Molecular Structure What is progesterone Progesterone is a hormone produced by ovarian corpus luteum cells. The corpus luteum is a structure that develops in the ovary instead of a mature egg that has been released during ovulation. Consequently, the progesterone level rises during the second half of the menstrual cycle.
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Aging

Aging: a natural process in the body of living beings Introduction - what it is It is understood as aging a series of changes that occur in the body over the lived time. Process and Main Causes of Aging This process causes changes in body functions and structure and makes it more susceptible to a number of harmful factors, which can be both internal (immune failure, compromised cell renewal, etc.).
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