What are the levels of organization in the human body?

Skin is able to prevent most microorganisms from entering the body by

Crossing over between homologous chromosomes takes place during

Where is the instruction for making new cell located in a cell?

How is a baby formed? Biology

Why can many ecosystems exist in one boime

There are several ways that a mutation may occur. Which of the following not a way for a mutation to occur during the DNA replication copying process? A. Sections of genes can be removed B. Sections of genes may be added C.

How do the resurection of fern, crysts of brine shrimps and tardigrade survive with no water?

Which of these best describes Earth's mantle? A. Most dense layer, consists of the outer and inner parts B. Thinnest under the oceans and thickest under continents C. Middle layer, density increases with depth as pressure increases D.

Which is an example of matter cycling through the bodies of living things

A scientist wants to prove that certain during chemicals in cosmetics are likely to cause harm to developing fetuses