Biology, 30.08.2019 22:00 daphnevlogs11
In some freshwater organisms there is a structure called a contractile vacuole that regulates water movement into and out of the cell. what explains the existence of the cv?
a) the cv prevents the organism from drying out.
b) the cv assists the organism in capturing prey.
c) the cv the organism move through the water.
d) the cv the organism maintain osmotic pressure.
Answers: 2
Biology, 22.06.2019 14:30
What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.
Answers: 1
Biology, 22.06.2019 19:30
Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above
Answers: 1
Biology, 22.06.2019 21:30
Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?
Answers: 2
In some freshwater organisms there is a structure called a contractile vacuole that regulates water...
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