Experimenters simulating early Earth conditions found that if heated protein chains were allowed to
cool in water, they would
a. form nitrogen, which would escape as a gas.
b. form proteinoids.
c. form small, proteinlike molecules.
d. clot and form a complex latticework frame for chemical reactions.
e. break down into the original amino acids that the protein chain was made from.
C
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Lyme disease is an example of a disease
A. that is due to a greater degree of interaction between humans and tick-carrying animals. B. that is due to a decline in vaccinations. C. that is due to a mutation in the human genome. D. that is due to climate change leading to a greater mosquito population.
You buy some flowers to give to your mother, but on the drive to her house, the flowers start
to wilt. Your mother quickly puts the flowers into a vase of water. Which of the following is true?
a. The concentration gradient between the plant and the water surrounding it causes water to move into the plant. b. There is a low concentration gradient between the plant and the water into which it is placed. c. The low concentration gradient allows for fast movement of water into the plant. d. The water is used to produce energy in the mitochondria so that the plant no longer wilts.
Which part of the ATP molecule breaks free of the rest when an ATP molecule releases energy?
A) part A
B) part B
C) part C
D) part D
The condition known as cleft palate is due to the ________ bones not fusing properly
Fill in the blank(s) with correct word