Which best describes a gene?

A: different allele form of a trait

B: tightly coiled strands of DNA

C: the center of a chromosome

D: a segment of a chromosomal DNA

Do predators really kill only old and sick prey

An example of a typical pioneer species, that is one that appears in the earliest stages of ecological succession, is A. weeds. B. spider. C. oak tree. D. humans.

During the first four days after conception, the zygote undergoes rapid cell divisions and becomes multicellular. What is this cell division called?

What is the average height of men

Which of the following is an organic molecule?

Which of the following BEST explains the importance of using periodization over time? Group of answer choices making things complicated to rehabilitate an injured joint or muscle making your program less boring continuous adaptation and preventing

Cells of the nervous system, including the brain, rely less on blood sugar (glucose) for energy than do other body cells.

What does the word endometriosis mean?

Which of the following is least likely to form at a convergent boundary? a mountain b trench c volcano d earthquake

In squash plants, the allele for yellow fruit (Y) is dominant to the allele for green fruit (y). A plant with genotype YY is crossed with a plant with genotype Yy.