Animal Nutrition
what are the 3 nutritional needs an adequate diet needs?
essential nutrients, components of macromolecules, and chemical energy
what is the difference between an open circulatory system and a closed circulatory system?
open has open ended vessels that transport blood and closed has connected vessels
what is conservation biology?
ecology, physiology, molecular biology
what is an ecosystem?
biotic and abiotic factors existing together
define population
the amount of members present in a species
what is the function of the liver?
the secretion of bile
what are the 3 basic components of a circulatory system?
the heart, pulmonary circulation, and systematic circulation
what is the difference between an endangered species and a threatened species?
endangered is the potential to go extinct and threatened is the potential to become endangered
where does energy enter ecosystems
sunlight
what is the difference between density and dispersion?
density is packed together, dispersion is spread out
what does mutualistic symbiotic bacteria do in the human body?
helps with digestion and absorption
what is hemolymph?
circulatory fluid that is equivalent to blood
what type of population does the declining population model focus on?
threatened and endangered
both energy and matter can neither be ____ or____.
created, destroyed
what does a reproductive table show?
summary of reproductive rates in a population
what is scurvy caused by? how can it be fixed?
lack of vitamin c and it can be fixed by the consumption of fruits and veggies
why are four chambered hearts considered an example of convergent evolution?
they continually pump blood
what is the concept behind a zoned reserve?
areas that are mostly untouched by humans
which trophic level supports all others
autotrophs
what does it mean for a population to show exponential population growth?
growth without a limit of resources
between water soluble and fat soluble vitamins, which is most likely to result in an overdose?
fat soluble because excess of the vitamin is stored in fat.
what feature of veins maintains a specific direction of blood flow towards the heart?
one way valves
what is biological magnification?
toxins are concentrated in trophic levels
what is eutrophication?
nutrients become highly concentrated in a body of water.
what is density dependent regulation?
regulation regardless of population density