Which of the following are gymnosperms?
A) Cycads, ginkgos, and conifers
B) Cycads, conifers, and ferns
C) Cycads, ginkgos, and ferns
D) Conifers, ginkgos, and ferns
E) Ginkgos, conifers, and horsetails
A
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What must happen to amino acids before they can be used in catabolic reactions?
A. They must be decarboxylated B. They must be deoxygenated C. They must be dehydrogenated D. They must be deaminated
The cells capable of releasing histamines are
a. mast cells and basophils. b. basophils and eosinophils. c. mast cells and eosinophils. d. natural killer cells and macrophages. e. all of these
How do amoebas differ from foraminiferans?
What will be an ideal response?
Without the ________, the semen would not naturally be able to counteract the acidity of the vagina
A) glans penis B) interstitial cells C) seminal vesicles D) prostate