Biology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | animals that lack a backbone
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| Define Vertebrates | show 🗑
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| Define Spherical Symmetry | show 🗑
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| Define Radial Symmetry | show 🗑
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| show | an organism possesses bilateral symmetry if it can be cut into two identical halves by a single longitudinal cut among its center which divides it into right and left halves.
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| show | an outer layer of cells designed to provide protection
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| show | the jellylike substance that separates the epidermis from the inner cells in a sponge
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| Define Collar Cells | show 🗑
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| show | cells that move using pseudopods and perferm different functions in different animals
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| show | a cluster of cells encased in a hard, spicule-reinforced shell
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| Define Polyp | show 🗑
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| show | a free-swimming cnidarian with a bell-shaped body and tentacles.
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| show | animal tissue consisting of one or more layers of cells that have only one free surface, because the other surface adheres to a membrane or other substance
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| Define Mesoglea | show 🗑
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| show | small capsules that contain a toxin which is injected into prey or predators.
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| Define Testes | show 🗑
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| Define Ovaries | show 🗑
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| show | the end of an animal that contains its head.
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| show | the end of an animal that contains its tail
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| show | a system designed to transport food and other necessary substances throughout a creature's body
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| show | a system of sensitive cells that respond to stimuli such as sound, touch, and taste.
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| show | masses of nerve cell bodies
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| Define Hermaphroditic | show 🗑
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| show | the ability to regrow a missing part of the body
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| show | a sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and performs respiration.
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| show | a tough, multilayered structure secreted by the mantle, generally used for protection, but sometimes for body support.
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| Define Visceral Hump | show 🗑
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| show | a muscular organ that is used for locomotion and takes a variety of forms depending on the animal.
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| Define Radula | show 🗑
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| show | an organism with a single shell
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| show | an organism with two shells
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| Do the vast majority of animals have backbones? | show 🗑
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| show | by their collar cells
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| show | spongin; it provides a framework for the sponge.
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| What is the predominant mode of asexual reproduction in a sponge? | show 🗑
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| show | they digest food and transport the food to the part of the sponge that need it . It also carries waste to where it can be released.
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| When does a sponge produce gemmules? | show 🗑
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| show | nematocysts of hydra are released something something touches it and the nematocysts of a sea anemone releases when certain chemicals.
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| Why do cnidarians not need respiratory and excretory systems? | show 🗑
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| Some biology books say that jellylike live "dual lives". Why? | show 🗑
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| If a jellyfish reproduces sexually, what form is it in? | show 🗑
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| show | great reefs
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| What benefits do earthworms give the plants in the soil that thy inhabit? | show 🗑
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| show | it in a ocean
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| show | hydra have both the sperm and the egg and earthworm's take two organism's but they are alike because they produce their own eggs and sperm
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| show | it will suffocate
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| show | because the intestine branches extend throughout most of the body
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| If a flatworm has no complex nervous or digestive systems, is it most likely free or parasitic? | show 🗑
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| show | it tears itself in half
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| show | Sea Anemone- Cnidarian, Clam- Mollusca, Sponge- Porfiera, Flatworm- Platyhelminthes, Segmented worm- Annelida
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