C14 is a radioactive isotope, and it turns into _____________ when it decays. Fill in the blank(s) with the appropriate word(s)


ANS: nitrogen PTS: 1 DIF: Easy

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. r-selected species tend to have type III survivorship curves. 2. Drought and floods are considered to be density-dependent factors potentially affecting population size. 3. In a demographic transition, death rates decline before birth rates. 4. Worldwide human population growth has been exponential since the Industrial Revolution.

Biology & Microbiology

In omnivores, including humans, the cecum is an important organ for digestion of cellulose.

Answer the following statement true (T) or false (F)

Biology & Microbiology

A spine is a modified branch. Indicate whether the statement is true or false

Biology & Microbiology

A deficiency of this in pregnant women can result in neural tube defects such as spina bifida.

A. Vitamin B B. Folate C. Vitamin D D. Melanin

Biology & Microbiology