In plants, phloem is associated with transport of:

a. water only.
b. dissolved sugars.
c. water and minerals.
d. minerals only.
e. plant hormones only.


B

Biology & Microbiology

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Flooding, landslides, soil nutrient loss, and global climate change all result from:

a. the introduction of exotic plants b. desertification c. deforestation d. ozone depletion e. biological magnification

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Dragonflies that ranged in size from those smaller than today's dragonflies to some with wingspans of

75 centimeters (2.5 feet) appeared during the:a. Cambrian period. b. Ordovician period. c. Silurian period. d. Devonian period. e. Carboniferous period.

Biology & Microbiology

Which of the following sequences is incorrect?

a. Males: inhibin: secreted by Sertoli cells

b. Males: follicle-stimulating hormone: stimulate production of androgen binding protein c. Males: gonadotropin-releasing hormone: stimulate testosterone production d. Females: luteinizing hormone: stimulate ovulation e. Females: inhibin: decreased secretion of FSH

Biology & Microbiology

Genes that control glucose metabolism are inactivated to study diabetes _____

Fill in the blank(s) with correct word

Biology & Microbiology