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Hannah's Stack
Apologia Biology Module 11
| Question | Answer |
|---|---|
| What are Invertebrates? | |
| What are Vertebrates? | |
| What is Spherical symmetry? | An organism possesses spherical symmetry |
| What is Radical symmetry? | An organism possesses radical symmetry if it can be cut into two identical halves by a single longitudinal cut |
| What is Bilateral symmetry? | An organism possesses bilateral symmetry if it can only be cut into two identical halves by a single longitudinal cut along its center which divides into right and left halves. |
| What is the Epidermis? | An outer layer of cells designed to provide protection. |
| What is the Mesenchyme? | The jellylike substance that separates the epidermis from the inner cells in a sponge. |
| What are Collar cells? | Flagellated cells that push water through a sponge. |
| What are Amoebocytes? | Cells that move using pseudopods and perform different functions in different animals. |
| What is a Gemmule? | A cluster of cells encased in a hard, spicule-reinforced shell. |
| What is a Polyp? | The sessile, tubular form of a cnidarian with a mouth and tentacles at one end and a basal disk at the other. |
| What is a Medusa? | A free-swimming cnidarian with a bell-shaped body and tentacles. |
| What is the Epithelium? | Animal tissue consisting of one or more layers of cells that have only one free surface, because the other surface adheres to a membrane of other substance. |
| What is the Mesoglea? | The jellylike substances that separates the epithelial cells in a cnidarian. |
| What are Nematocysts? | Small capsules that contain a toxin which is injected into prey or predators. |
| What are Testes? | Organs that produce sperm. |
| What are Ovaries? | Organs that produce eggs. |
| What is the Anterior end? | The end of an animal that contains its head. |
| What is the Posterior end? | The end of an animal that contains its tail. |
| What is the Circulatory system? | A system designed to transport food and other necessary substances throughout a creature's body. |
| What is the Nervous system? | A system of sensitive cells that respond to stimuli such as sound, touch, and taste. |
| What are Ganglia? | Masses of nerve cell bodies. |
| What does it mean to be Hermaphroditic? | Possessing both the male and female reproductive organs. |
| What is Reregeneration? | The ability to regrow a missing part of the body. |
| What is the Mantle? | A sheath of tissue that encloses the vital organs of a mollusk, makes the mollusk's shell, and preforms respiration. |
| What is the Shell? | A tough, multilayered structure secreted by the mantle, generally used for protection, but sometimes for body support. |
| What is the Visceral hump? | A hump that contains a mollusk's heart, digestive, and excretory organs. |
| What is the Radula? | An organ covered with teeth that mollusks use to scrape food into their mouths. |
| What is the Foot? | A muscular organ that is used for locomotion and takes a variety of forms depending on the animal. |
| What is an Univalve? | An organism with a single shell. |
| What is a Bivalve? | An organism with two shells. |
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