What is a sperm cell

A group sharing distinctive cultural traits

Which statement describes the term "heterozygous"? A) The alleles are the same. B) The alleles are different. C) There is no allele. D) There are two pairs of alleles.

What is the difference between fragmentation and regeneration

In the above problem, if pollution causes the tree to darken, tell what will happen to the insect populations over time and how this is an example of evolution. (8pts)

After the oil spill in the Gulf of Mexico, one of the treatments included the addition of harmless, oil-eating bacteria. How could this be better than more traditional methods of cleaning up oil spills? A.

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.