The process of biological evolution often allows humans to survive consistent environmental stresses that occur across multiple generations. As humans colonized Earth's diverse environments, they encountered hot, dry areas and decided to settle
What trait likely offered an advantage in this environment? A) the ability to produce sweat to cool their bodies
B) the ability to shiver to create body heat
C) the ability to squint eyes to block out bright light
D) the ability to dig deep holes to find groundwater
A
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The gene that encodes for plant height in sunflower plants follows a strict recessive/dominant pattern of inheritance and has 2 alleles (tall and short). A tall sunflower plant is crossed with a short sunflower plant. Half of the offspring from this cross are tall, and the other half are short. From this information, what are the parents' genotypes?
What will be an ideal response?
Water
A. is nonpolar. B. has a low heat of vaporization. C. has cohesive properties. D. evaporates and increases body temperature. E. is a relatively poor solvent.
Four of the five animals listed below possess some
type of coelom. Select the exception. a. nematodes b. annelids c. arthropods d. mollusks e. platyhelminthes
Streptokinase is useful for which of the following?
A) producing antibiotics B) cheese production C) biosensors D) dissolving blood clots E) insecticide