Sponges reproduce

a. sexually in a way favoring cross-fertilization.

b. sexually in a way favoring self-fertilization.

c. asexually with sperm only.

d. none of the above

In a certain population of rabbits, the allele first brown fur is dominant over the allele for white fur.

Explain how major ocean currents influence the coastal climates of the regions that border them

Gloria is a dairy cow. While she has produced a lot of offspring, her milk production is low, and she is often sickly. As a result, Gloria will probably be

Many modern tests can detect pregnancy soon after fertilization occurs. Which of the following explains why it is important for a woman to know she is pregnant within the first trimester?

Dallon's theory states that atoms are the smallest possible parts of elements. In a chemical reaction, atoms will A.) Rearrange and form new substances with new properties B.) Change form into completely new atoms with new properties C.

What is ozone? 1. dissolved oxygen 2. the main catalyst in photosynthesis 3. a type of oxygen 4. a form of calcium carbonate

What are two advantages of burning garbage for fuel?

The measurement of the distance from the crown of the infant's head to the infant's heel, while the infant is lying on his/her back with legs extended, is a measurement of:

How many pairs of autosomes does this karyotype have?

If a theory is challenged by new evidence, which of the following couod occur? A. the theory could be altered B. the theory is accepted, not the evidence C. the evidence is wrong D. a vote is taken to accept new evidence