Develop a short hypothetical explanation (one sentence) for the observed distribution of obligate asexual reproduction under the environmental unpredictability model
What will be an ideal response?
ANS:
The asexual species and genera may be occupying very stable and predictable habitats.
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How might mutations in the dnaQ sequence, whose enzyme is involved in DNA proofreading, be beneficial for a microbe in a highly competitive and dynamic community?
What will be an ideal response?
Which of the following statements about transport through phloem is true?
A. Transport only occurs from the roots to the shoot. B. It is aided by root pressure. C. The direction of flow can change at different times if the sources and sinks change. D. No energy is required. E. Mostly dissolved starch is transported.
The autonomic division of the PNS regulates the activity of which of these? Select all that apply.
A. smooth muscle of the intestinal wall B. cardiac muscle C. smooth muscle of blood vessels D. salivary glands E. skeletal muscles
You eat 25 potato chips, which contain 10 grams of carbohydrate (potato) and 10 grams of fat. This means that
A) about 90 Calories are from fat and 40 Calories are from carbohydrate. B) all of the calories are from fat. C) about half your calories are from fat and half from carbohydrate. D) about 40 Calories are from fat and 90 Calories are from carbohydrate. E) all of the calories are from carbohydrate.