Which of the following is a major limiting factor that affects how many steps are in a food chain?

a. food
b. habitat
c. predators
d. energy


d. energy

Biology & Microbiology

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Typically arthropods serve as vectors of disease, while helminths directly cause disease

Indicate whether this statement is true or false.

Biology & Microbiology

Chloroplasts share many similarities with which one of the following organelles?

a. mitochondria b. rough endoplasmic reticulum c. nucleus d. Golgi complex e. lysosome

Biology & Microbiology

What is the direction of prevailing winds in the central United States?

1.From east to west 2.From north to south 3.From south to north 4.From west to east

Biology & Microbiology

Which of the following statements concerning

production of bryophyte reproductive cells is true? a. Spores and gametes are produced by meiosis. b. Spores and gametes are produced by mitosis. c. Spores are produced by meiosis, whereas gametes are produced by mitosis. d. Spores are produced by mitosis, whereas gametes are produced by meiosis. e. Spores and gametes are both used for sexual reproduction.

Biology & Microbiology