Why do we need muscles?

Explain what a zygote is. Use the terms egg cell, sperm cell, and fertilization in your explanation.

All the animals trees and plants are made up of cells that share many similar characteristics

Which sense organs do reptiles use in finding prey?

Jackson, a 4-year-old boy, is unable to get the mmr vaccine due to a severe allergy to the antibiotic neomycin.

Which type of mutation results in a base pair within a DNA sequence being replaced with a different pair? Deletion Substitution Inversion Translocation

Passive transport does not mean that a particle is inactive or not moving. It means the particle can move without requiring what?

What are three types of passive transport that occur in the body

10 Pts! Why can only some people smell ant's. I googled it and I only found that some people can smell ant's, and some people can't and why they smell. This is a legit question.

Suppose a mutation occurs in the cells that give rise to your brain during its development. this results in much more efficient use of oxygen by your brain tissues.

If all the rocks are removed from a desert ecosystem, what would happen to the population of rock dwelling lizards and in turn the animals which eat them?