Volcanoes release carbon dioxide into the air during an eruption in what form?

a. carbon dioxide
b. carbon monoxide
c. methane
d. ethane


a. carbon dioxide

Biology & Microbiology

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With its abundance of collagen fibers, cartilage is an example of _____

A) connective tissue B) reproductive tissue C) nervous tissue D) epithelial tissue E) adipose tissue

Biology & Microbiology

Describe the steps in the polymerase chain reaction (PCR)

What will be an ideal response?

Biology & Microbiology

How can the amount of yard waste produced by people be reduced?

A) through recycling B) through composting C) by having people bring their own waste to dumps D) through burning

Biology & Microbiology

The energy required for life processes must be extracted from an organism's

a. nucleus. b. predators. c. environment. d. biosynthesis.

Biology & Microbiology