What is the function of bone marrow?

A. to harden the bones

B. To make blood cells

C. to change cartilage into bone

D. To remove waste from the body

Which of the following body parts is made of cardiac muscle?

A. heart

B. biceps

C. stomach

D. bloodvessles

Similarities and differences between photosynthesis and cellular respiration

How long does a water molecule circulate in the water cycle? Answer 1. until it combines with a different type of molecule 2. usually about 10,000 years 3. until something drinks it 4. Indefinitely; it is impossible to tell.

Where does photosynthesis occur in the biosphere? Check all that apply.

What is the pathway of air into the body? nose → nasal cavity → pharynx → trachea → larynx → bronchi → lungs nose → nasal cavity → pharynx → larynx → trachea → lungs → bronchi nose → nasal cavity → larynx → pharynx → trachea → bronchi → lungs nose →

Is water wet? 1-2 sentences.

Neurotransmitters are secreted into a specialized junction known as the: (a) Synapse (b) Synaptic vesicles (c) Ligand channel (d) Axon

Birch bolete is a fungus that normally grows on the roots of birch trees in New York State. During the life of the fungus and the birch, each organism receives nutrients from the various biochemical processes of the other.

Failure of your immune cells to recognize MHC proteins on your normal body cells might result in which type of condition? Select one: a. Leukemia b. Auto-immune diseases c. HIV d. Cancer

The purpose of the Human Genome Project was to: a. map the nucleotide sequence and identify the genes on each human chromosome. b. identify spontaneous alterations in genetic material caused by teratogens. c.

Which of the following does not belong together? A. endothelium B. mesothelium C. membrane capsule D. serous membrane E. all of the above belong grouped together