Bio chapter 28

in what organ of the digestive system is food absorbed into the blood stream?

most animals in the animal kingdom are vertebrates

fish reproduce by internal fertilization

development that occurs in an egg that is hatched outside the female body

a bony fish can move to different depths by adjusting the amount of air in it's what?

what fin helps fish stay up right in the water?

the bony plate that covers the gills in the fish is called the what?

the body temperature that maintains a relatively constant body temperature

what body system transports oxygen and nutrients through out the body?

the body temperature varying with the temperature of the environment

the nervous system is made up of two parts, the central nervous system and the what?

what organ is attached to the underside of the liver that stores bile?

endoskeletons are made up of living cells and grow with the organism

development that occurs in an egg that is hatched inside the female body

bony fish are classified into orders according to the structure of their gills

development that occurs inside the female allowing the young to get nourishment through a placenta

the fish breath by taking water in through their mouth

the part of the frog that allows it to hear

a frog can perform respiration two wasy: lungs and what other organ?

fish swim by using their anal fins

air filled sacs that provide lots of surface area for gas exchange are called book lungs

the fish use their nostrils to smell

the fish sense organ that picks up frequency underwater is called the what?

why are amphibians eggs sticky?

what helps filter out waste from the blood?