What role do stems play in photosynthesis?

Two organisms that have sexual and two that have asexual reproduction?

The sequence of bases in DNA is often considered as a chemical code. Explain how chromosomes ensure that the DNA code is passed from one cell to another during mitosis and cell division.

Two-month-old roderick lives in a home with parents who both smoke cigarettes. he has a mild respiratory infection and sleeps on a soft crib mattress. roderick is at high risk for

What organelle controls a cells packaging storage and shipping fuctions? a,[ER] b, ribosomes c. Goigi apparatus d, vesicles

True Or False countries which use the most natural resources have always been willing to participate and Global Communications to resolve many environmental problems

What is the main function of the large intestine? A. digestion of proteins B. absorption of nutrients C. breaking down complex carbohydrates D. removing water from undigested waste

Which type of environmental scientist is most likely to study how whales are affected by pollution? a. Hydrologist b. Toxicologist c. Ecologist d. Oceanographer

How did Francesco Redi disprove the idea of spontaneous generation? He showed that flies were not produced by meat. He showed that microorganisms are present in air. He showed that microorganisms cause disease. He showed that flies spread disease.

Of the millions of sperm who start the long journey to the egg, how many sperm are actually allowed to enter the egg?

A mineral leaves a gray trail when scraped against an unglazed porcelain plate. Which property of a mineral is being measured? A. luster B. streak C. color D. hardness