Animal Characteristics
Is animal nutrition heterotrophic or autotrophic?
Heterotrophic.
What is the difference between a vertebrate and invertebrate?
Vertebrates have spines and invertebrates do not.
What type of symmetry do poriferae have?
They are usually asymmetrical.
What type of symmetry do cnidarians have?
Radial.
What does it mean if an animal is a herbivore?
They eat plants and algae.
What does limited growth mean?
That most animals stop growing as they mature.
What is the hard covering of an insect (or other invertebrate) called?
What are the holes on the outside of their bodies called?
Pores.
What do cnidarians eat? (Are they herbivores, carnivores, omnivores, or detritivores?)
Other animals, they are carnivores.
What are complex systems and which group of invertebrates doesn't form them?
Complex systems are groups of animal cells, such as tissues or organs. Porifera do not form complex systems.
What are the two types of symmetry found in animals? Give an example of each.
Bilateral (humans) and radial (starfish)
What kind of symmetry does a beetle have?
Bilateral.
Is their skeleton internal or external?
Internal.
What are the two basic body types of cnidarians? Give an example of each.
Polyps (coral) and medusa (jellyfish).
What does sessile mean? Give an example.
Sessile describes an animal that does not move, like coral.
What are the two asexual mechanisms some animals can use?
Budding and fragmentation.
What kind of symmetry does a jellyfish have?
Radial.
How do porifera reproduce?
Sexually or asexually through fragmentation.
What are cnidoblasts and what do they do?
They are cells that have flagella to inject prey with a paralyzing liquid.
What does it mean if an animal is an ectotherm?
Their body temperature depends on the external temperature.
What are the two ways that fertilization can be done? Give an example of each.
Internal (mammals) or external (most fish)
What are the internal spikes of a sea sponge called?
Spicules.
What is the osculum?
Large hole used to release water and waste.
What does alternation of generations mean? Explain the process for bonus points!
When an organism has phases of both sexual and asexual reproduction.
What does it mean if the development of an embryo is ovoviviparous?
The embryo develops inside an egg that hatches in the mothers body.