Select all that are chordates.

(1) fish

(2) mammals

(3) birds

(4) amphibians

(5) reptiles

Which explains a difference between prokaryotic and eukaryotic gene reguation? A. Eukaryotes utilize operons, so they do not need to produce sections of mRNA. B. Prokaryotes process DNA in the nucleus, so genes do not need to be activated. C.

true or false? cells spend most of their time in cell division. Explain the importance of the answer. be sure to include a diagram of the cell cycle and explain all the parts.

Give at least 5 importance of plants?

Jeremiah has an infection on his pinky finger that developed as a result of a simple cut. as the infection first penetrates the skin, what type of cell would be responsible for engulfing the offending invaders to prevent them from doing any damage?

brad put 10 crickets in his pet lizard's cage. after one day, brad's lizard had eaten 20% of the crickets he had put the cage. by the end of the next day, the lizard had eaten 25% of the remaining crickets.

You expect interstitial endocrinocytes (interstitial cells of Leydig) to be rich in which of the following?

Which of the following is an example of sustainability? A) cutting down all the trees in a forest without replanting any B) consuming more cattle than are being born C) recycling a metal can so it can be reused D) leaving the lights on in a room you

What is the major force responsible for the formation of an α-helix in protein secondary structure?

Some people believe fire is alive. It moves it seems to know where to go, it reacts to its environment.

Can energy be transferred from animal to animal