What is the origin of all stars?

supernova

dwarfs

protostars

nebulae

Body cells include nerve cells and muscle cells. Each makes a number of different proteins. For example, nerve cells make cholinesterase and muscle cells make myosin.

Penicillium notatum is what type of organism?

What is the definition of chemical weathering?

Osteoporosis result from which of the followings?

The part of the blood responsible for clotting is the

Which life cycle describes a plant that reproduces asexually and sexually? A. egg + sperm → embryo → adult with all its chromosomes → gametes → adult; gametes produce an organism with half the chromosomes B.

What would happen to the mass of a cell in a hypertonic, isotonic and hypotonic?

How do air and water movement, and land masses affect the climate

Under what circumstances does membrane transport always require energy?

What is one disadvantage of using plasma gasification to detoxify hazardous waste?