Which class of vertebrates is considered to be the first to develop lungs, allowing them to become terrestrial organisms?

A) Reptilia

B) Aves

C) Mammalia

D) Amphibia

Why do different bacteria ferment the same carbohydrate differently?

Both starch and cellulose are glucose polymers. why can animals easily degrade starch, but not cellulose?

Select the descriptions of the ways hydrocarbon skeleton structures may vary.

What happens to the expression of the lacI gene if lactose is not available in the cell? View Available Hint (s) What happens to the expression of the lacI gene if lactose is not available in the cell?

You are doing field work on a small, uninhabited island. you are supplementing your food supply with fish that live in some of the ponds on the island.

What Gives Directionality To Carbohydrates?

Invertebrates are the most commonly found fossils because they:

Recent studies have found traces of the insecticide DDT accumulated in the fat tissue of many wild animals. A correct explanation for this accumulation is that

Cell engulfs microorganisms in cell "eating": pinocytosis active transport phagocytosis passive diffusion facilitated diffusion

Which kind of organism is an autotroph? consumer producer decomposer herbivore