Which of the following hormones promotes fruit ripening and dropping of leaves?
A) auxin
B) ethylene
C) gibberellin
D) abscisic acid
B
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The birth process in mammals provides an example of positive feedback
Indicate whether the statement is true or false.
In 1990, a small herd of white-tailed deer migrated into a new environment. Research indicated that the herd has reproduced exponentially with a doubling time of 5 years. It was estimated that this herd would reach its carrying capacity by 2005. In what year would the herd be "half way" to its carrying capacity? Explain
What will be an ideal response?
If a sieve tube in a plant becomes blocked, the
plant will experience difficulty in a. carrying on transpiration. b. transporting minerals. c. translocating food throughout the plant. d. completing cell division and experiencing normal growth. e. healing wounds.
Environmental pressures on a population, such as temperature and pH, are density ________ factors
Fill in the blank(s) with correct word