click below
click below
Normal Size Small Size show me how
Capter4 lssn2
6th grade SCI
| Term | Definition |
|---|---|
| Tissue | any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products. |
| Organ | a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans. |
| Radial Symmetry | a body plan where parts are arranged around a central axis, allowing an organism or object to be divided into identical halves by multiple planes passing through the center, |
| Bilateral symmetry | body plan where an organism can be divided by a single plane into roughly identical left and right halves, creating mirror images, like humans, dogs, or butterflies. |
| Describe an animals body plan | An animal body plan is the basic blueprint of its structure, defined by features like symmetry (asymmetrical, radial, or bilateral), germ layers (diploblastic or triploblastic), segmentation, the presence and type of body cavity (coelom), and the arrangem |
| Describe how the structures of animals are related to their symmetry | Bilateral Symmetry: Human (Most complex; characterized by a single plane of symmetry creating mirrored left and right halves). Radial Symmetry: Jellyfish (Standard aquatic example; body parts radiate from a central axis, allowing it to sense the environm |
| Describe what asymmetrical body type means and give an example of an animal | An asymmetrical body type has no consistent pattern, axis, or mirror images. It is primarily found in primitive, Sessile (Stationary) organisms that lack true tissues or organs. Example: Sponge (Porifera). |
| Describe what radio body symmetry means and give an animal example | Radial symmetry is a body plan where parts are arranged Equally Around a Central Axis, much like spokes on a bicycle wheel. This allows the animal to sense and interact with its environment from all directions equally. These animals have a top and bottom |
| Describe what bilateral body cemetery means and give example of animal. | Bilateral symmetry is a body plan where only a Single Plane can divide an animal into two Mirror-Image Halves (left and right). This plan is the most common among animals and is essential for Directed, Streamlined Movement. Example: Humans (Other example |