When does the circulatory system work with the respiratory system?

a - during cellular respiration

b - during blood cell formation

c - during intestinal digestion

d - during a viral infection

Do light independent reactions require light?

Viruses are not considered to be living things, but they depend upon living cells for energy, reproduction, and protection at the expense of the cells that they invade.

Which of the following happens to chromosomes during prophase? A They move to opposite sides of the cell. B They become centrioles. They condense. D They disappear.

He Aleutian Trench is an area where the oceanic Pacific Plate is converging with the continental North American Plate.

how factors such as blood pressure blood volume blood viscosity resistance disease and exercice affect blood flow

What are some examples of comparative anatomy as evidence of evolution?

A group of students is counting the number of plastic bags placed in a landfill during a single day. what are the students doing? A. starting a promblem b. drawing a conclusion c. making a hypothesis d. collecting data by the way this is ecology!

I need some one to rewrite this paragraph (in the comments) to make better sense im currently writing another one atm and this one is due

What following organisms is considered to be an exception to the cell theory

What is the importance of alleles in humans?