Which of the following illustrates mechanical weathering

An organic molecules that is an importanat part of cell membranes is: : a. cellulose b. glycogen c. RNA d. phospholipid

is a lipid polimer

Vegetative characters of fungi

Melvin calvin and his colleagues noted that when 14co2 was added to algal cells, a single compound was radiolabeled within 5 seconds of exposure. what is the compound, and where does the radioactive label appear?

Last year drought conditions settled into the ecosystem of garden snails. before the drought began, there were 500 garden snails. last year, 50% of the population died and no offspring were produced.

Which statement best describes the relationship between the deer and the plants?

A decrease in honey population will ...

Viruses cannot reproduce on their own and require a host organism to do it for them. This is one reason viruses are not considered to be alive

If the environment changes what is the first thing a species will do to survive

Rheumatoid arthritis is an autoimmune disease which causes the joints in the body to be constantly inflammed. This disease results when body tissues are A. attacked by one's own immune system. B. infected by a virus. C. infected by bacteria. D.