Fast-twitch muscle fibers, such as those that predominate in the legs of sprinters, ________ than slow-twitch fibers, which predominate in the legs of marathon runners

A) have a greater blood supply B) contain higher levels of myoglobin
C) contain fewer mitochondria D) produce more ATP


C

Biology & Microbiology

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The white, sticky, toxic liquid that runs through some plant veins and is particularly common in plants of the milkweed family is called ___________

A. filament B. nectar C. alkaloid D. latex E. tannin

Biology & Microbiology

Describe the similarities and differences between sperm and ova.

What will be an ideal response?

Biology & Microbiology

Heterotrophs that obtain energy and carbon by feeding on both animal and plant materials are called ____

a. detritivores b. herbivores c. carnivores d. omnivores e. decomposers

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