The Devonian marked the time of greatest diversity in which of the following? lizard brachiopod mammal none of the above

Lamarcks idea of "acquired traits" Proposed that

What is the 5 agents of evolutionary change that is required for natural selection to occur

What is the last bone to fuse in the human body?

Skin has epithelial cells that resist stretching and twisting because they are held together by what

Which of these would be caused by a chemical change? A) The formation of lava. B) Sedimantary rock layering over time. Eliminate C) Metamorphic rock forming from igneous. D) Metamorphic rock eroding to form sedimentary rock.

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