What are the the simplest types of eukaryotes?

Which is composed of amino acids and determines all the structures and functions of organisms? DNA ribosome mRNA protein

Why does the reporter have a tube up his nose? a. as a feeding tube to replace lost nutrients b. to accurately measure core temperature c. to recycle the water he loses during the test d. to replace the salts and other ions lost during the test

What can you learn from observing and comparing the physical traits of different birds?

Zara I an excellent violin player which part of her brain is responsible for the motor skills involved in playing a violin

1. Parents got their chromosomes from your grandparents, and so on. But are the chromosomes that are passed along through the generations exactly the same? 2.

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