What is a complex protein-iron compound in blood that carries oxygen to cells?

In a grasshopper, all the body tissues are bathed in blood that is in the:

What is the most probable diagnosis for a woman whose menstrual cycles are normal, except that she experiences higher than normal menstrual flow?

If a pea plant has a ressive allele for green peas, it will produce A. green peas if it also has a dominant allele for yellow peas. B. both green peas and yellow peas if it also has a dominant allele for yellow peas. C.

Dose a cell have a nucles

What percentage of the air is nitrogen gas?

Lymphocytes that are clones of activated B cells or T cells that enhance resistance to future infection are called: a. memory cells. b. clones cells. c. enhanced cells. d. recall cells.

A group of scientists are studying the internal parts of a cell. Which microscope is most appropriate for these scientists to use?

Which characteristic do all protists have? A They all make or consume food. B They all survive in any environment. C They are all unicellular. D They all have flagella.

The Greatest salt lake in Utah has a saline content that can be up to ten times greater than the ocean. It is fed by three freshwater tributaries. What causes it to have such a high concentration of salt A.

What do the two types of fermentation differ