Complete the following analogy;

organised cells; tissue; ?; organs

A) tissues

B) organs

C) body

D) organisms

Which of the following is something antibodies do not do?

What happens to an egg if it is not fertilized when it is in the uterus?

Carbon atoms have four valence electrons are they likely to react with other atoms and why or why not? A. yes but only with other stable atom B. no, because they have an even number of valance electrons do they are already stable C.

Gap junctions (electrical synapses) A. are found only in a few species of animals. B. are far more numerous than chemical synapses. C. have larger pores than voltage-gated ion channels have. D.

Compare the three categories of behavior costs.

How many kinds of energy are there

What are three ways biology has impacted the health of people around the world

What cytoskeleton forms inside the cell

What is the name of the tallest man alive

N sexual reproduction, an offspring is produced with genes from both parents. when the offspring has a new genetic variation that it got from neither of its parents, it is called