Cows need to breath because

What type of cells are produced after fertilization occurs and the gametes combine? A) an egg cell B) a sperm cell C) a diploid zygote D) a haploid zygote

Birds are endotherms. Which statement accurately describes what this means? Birds feed and protect their young after they hatch. Birds have two different types of feathers. Birds can maintain a consistent body temperature.

Dna replication: a. occurs by the addition of nucleotides to the end of the dna molecule. b. results in the formation of four new dna strands. c. produces two daughter dna molecules that are complementary to each other. d.

Contrast oxygen levels in standing and running water ecosystems.

How has fish adapted to its environment to minimized water resistance?

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.