Animals Flashcards
What are the four kinds of tissues animals have?
Epithelial, nervous, muscular and connective tissues.
What are some characteristics that apply to all members of the animal kingdom?
They are all heterotrophs, multicellular, eukaryotic and lack cell walls.
What makes up 95% of animal species?
95% of animals are invertebrates, 5% are vertebrates.
What is the difference between invertebrates and vertebrates?
Invertebrates lack a back bone or vertebral column.
Vertebrates have a backbone.
What are the seven essential functions that animals carry out?
Feeding respiration circulation excretion response movement and reproduction.
What is homeostasis?
Maintaining a relatively stable internal environment.
How is homeostasis maintained?
It is maintained by internal feedback mechanisms called feedback loops. Most of these feedback loops involve feedback inhibition, in which the product or result of the process stops or limits the process.
What is an example of feedback inhibition?
When a dog becomes too hot it pants. Panting releases heat and the animals body temperature decreases.
What is a detrivore?
An organism that feeds on decaying plants or animals.
What is the symbiotic relationship between a parasite and a host?
A parasite lives within or on another organism the host parasite feeds on the host harming it.
What is the product of respiration?
carbon dioxide.
How do larger animals who have thick layers of tissue circulate materials around the body?
They have some kind of circulatory system within their bodies.
What is the primary waste product of cells?
Ammonia a poisonous substance that contains nitrogen.
How does excretion help maintain homeostasis?
By eliminating metabolic wastes.
What are receptors?
Cells that respond to sound like another external stimuli other nerve cells process information and determine how the animal responds.
