How many cells do bacteria have

1. An ecosystem consists of one oak tree on which 10,000 herbivores are feeding. These herbivores are prey to 500 spiders and carnivorous insects. There birds of the same species are eating these spiders and carnivorous insects.

Which is a mechanical vector that injects recombinant DNA directly into the nucleus of a host cell?

Pyrolbus Fumarri is a tiny organism that lives near areas of volcano activity jeep under the sea worthy is intense and oxygen is scarce true or false

What happens if you stirred the water and sugar in a glass?

Miles wants to write the equation for photosynthesis. The diagram below represents one of the molecules in the equation

g Antibodies are proteins that recognize a particular antigen and are produced by specialized B cells. Antibodies consist of polypeptide chains linked together in a Y‑shaped formation.

A substance that affect the reaction without being changed

Explain the specific response of an antibody when an invader enters the body

As the blood travels throughthe circulatory system the greatest drop in pressure occur in?

How do drugs of abuse affect the brain? (Site 1)