The leafy fern that you might have as a house plant is the __________ generation
a. diploid sporophyte
b. diploid gametophyte
c. haploid sporophyte
d. haploid gametophyte
e. triploid sporophyte..
A
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Which plants resemble palm trees (but are not close relatives), and contain toxins that increase the risk of neurodegenerative disorders and cancer?
a. tree ferns b. conifers c. gnetophytes d. ginkos e. cycads
Which enzyme is used by RNA viruses to directly replicate the viral RNA genome?
A. RNA-dependent DNA polymerase B. Reverse transciptase C. DNA-dependent RNA polymerase D. RNA-dependent RNA polymerase
Why has it been so hard to come up with an accurate measure of Earth's carrying capacity for humans?
What will be an ideal response?
Cushing's syndrome causes weight gain, excessive sweating, and muscle weakness. It can result from either the production of abnormally high levels of cortisol by the body or overuse of glucocorticosteroid drugs. You are an endocrinologist working with a Cushing's syndrome patient. She is on hormonal birth control pills and takes an occasional ibuprofen.What lab tests would you order to find the source of the problem?
A. Cortisol, ACTH, and CRH B. Cortisol and ACTH C. None-the birth control pills include corticosteroid hormones. She should switch to another form of birth control. D. Cortisol, LH, and FSH