Which animal uses its skin for respiration? A. pelican B. lion C. toad D. mackerel

A primary transcript (immature, non-processed) single-stranded RNA molecule has the following nucleotide composition: 30% A, 20% G, 24% C, and 26% U.

Which is used for evidence for the idea that eukaryotes formed from prokaryotes

Two species of crickets are indistinguishable (identical) to one another except for their mating songs, which have noticeably different pitches. Thus, the crickets will not mate.

The circulatory system of a vertebrate that uses lungs for respiration has A. Three or more loops. B. No loops. C. A single loop. D. A double loop.

Some inquisitive students found two slugs and wanted to take them to science class. The only container they could find was a used potato chip bag.

What does Hierachy of Biological Order mean

In giraffes, long necks (n), long legs (l), dark spots (d), and the ability to digest maize (m) are all dominant traits. what possible genotype could a long-necked, short-legged, light-spotted, maize-digesting giraffe have?

How much ug of protein are we suppose to load on sds precast gel?

Give examples of diseases caused by viruses

One function of the human excretory system is: 1. making materials that the body cells need 2. removing excess heat energy from the body 3. moving substances to and from body cells 4. controlling the body's responses to stimuli