Sugary secretions of plants attract various insects as a source of nutrition. In addition to pollination, which of the following can be a benefit for the plant in this relationship?
a. nutrition from the insects when they die near the plant
b. cooling effect of being shaded by the insect from the sun
c. protection from herbivory
d. insects that can keep the plant pruned
c. protection from herbivory
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If pregnancy does not occur, then
A. chorionic gonadotropin levels increase. B. progesterone levels decrease and estrogen levels increase. C. both progesterone and estradiol levels increase. D. LH and FSH levels decrease. E. both progesterone and estradiol levels decrease.
Which of the following processes occurs in the cytoplasm of a eukaryotic cell?
a. translation b. DNA replication and transcription c. transcription d. DNA replication e. translation and transcription
What process, which is responsible for many trinucleotide repeat disorders, alters the number of DNA repeats?
What will be an ideal response?
Which of the following individuals pioneered the use of chemicals to reduce the incidence of infections during surgery?
A) Nightingale B) Snow C) Ehrlich D) Lister E) Semmelweis