Why would all protozoa be expected to require large amounts of water in their habitats?
A. They require water to avoid dehydration and death. Without being in water, they would quickly dehydrate (due to their small size) and die.
B. They require water to help them during photosynthesis by providing an electron source.
C. They require water to move around in to seek food particles. Without water, they would be unable to move at all.
D. All of the above are correct.
A
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a. actin microfilaments. b. myosin microfilaments. c. intermediate filaments. d. microtubules. e. collagen fibers.
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What will be an ideal response?
When they ferment glucose, members of the genus Streptococcus produce lactic acid, but no gas.
Answer the following statement true (T) or false (F)
Answer the following questions true (T) or false (F)
1. A population of salamanders migrates from a sand beach to a pebble beach and evolves over many generations from a solid color to speckled coloration. This process is called stabilizing selection. 2. If a species of bird with an intermediate beak size evolves into two varieties, one with large beaks and one with small beaks, this could result from disruptive selection. 3. Even through they are separate species, lions and tigers can interbreed.