Which feature is not a characteristic of the tropical rain forests?
a. Average rainfall of 130 - 200 centimeters
b. The most structurally complex biome.
c. Photosynthesis continues year round.
d. Average temperature of 92o F.
e. Little variation in the length of daylight.
d
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Lampreys completely lack parathyroid glands. Suggest why these glands may be important for other vertebrates, but not for jawless fish.
A. Because they are parasitic, lampreys get plenty of calcium from their hosts. B. Living in the ocean, they are surrounded by large amounts of sodium, chloride, and magnesium ions. C. Jawless fish employ a different system than other vertebrates to regulate blood sugar. D. Since they have a cartilaginous skeleton but not true bone, they have less need to regulate calcium levels. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about the parathyroid gland? What other information is related to the question? . Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What type of population dispersion is most common, and how does area sampled affect how
dispersion appears to a researcher?
What will be an ideal response?Treating a solution from S strain Streptococcus pneumoniae with an enzyme that destroys would prevent it from transforming the R strain of bacteria into a form that would cause pneumonia in mice.
A. proteins or lipids B. lipids C. DNA or proteins D. proteins E. DNA
The human-accelerated region 1 (HAR-1 ) gene
A) was identified by functional genomics. B) is identical to the chimpanzee HAR-1. C) encodes for the human accelerated region-1 protein. D) is a small, noncoding RNA expressed in the brain. E) is a small, regulatory RNA that regulates gene expression.