Four of the five choices listed below are periods of
the same cycle. Select the exception.
a. G1
b. Mitosis
c. Replication
d. S
e. G2
Answer: b
You might also like to view...
Biological rhythms and the onset of sleep are regulated by ____ produced by the ____
a. cortisol; pineal gland b. melatonin; pituitary gland c. parathyroid hormone; parathyroid gland d. melatonin; pineal gland e. cortisol; adrenal gland
What structure may have acted as a boundary for a cell-like environment before protocells formed?
a. acidic water from volcanic springs b. chambers in rocks c. metal ions from rocks d. clay e. lipid membrane
Identify the only correct statement regarding the heritability of a trait
1.Heritability of a particular trait can be calculated only in individuals, not in populations. 2.Heritability defines the genetic contribution to a trait in a population of relatives. 3.In heritability studies, the correlation coefficient is a measure of the total number of relatives affected by the trait. 4.Heritable traits are not affected by the environment.
The greenhouse effect is
A) of little concern, since it is part of the normal cycle for the planet. B) reduced by photosynthesis, which removes carbon dioxide from the atmosphere. C) reduced by the addition of carbon dioxide to the atmosphere, since carbon dioxide removes excess heat from the Earth's surface and reflects it back into space. D) made worse by photosynthesis, which adds carbon dioxide to the atmosphere. E) reduced by the burning of fossil fuels, which removes oxygen from the atmosphere.