A biome characterized by warm, fairly dry climate that primarily contains grasses with scattered, isolated trees is a ________

A) savanna
B) chaparral
C) tundra
D) temperate grasslands


A

Biology & Microbiology

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________ is the carrier molecule required to transport peptidoglycan subunits to the location where they will be incorporated into the growing bacterial cell wall.

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Briefly explain why viruses are not considered living organisms

What will be an ideal response?

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Which of the following statements is incorrect about mutations?

A. Some mutations change the nucleotide sequence of a gene. B. Mutations change the bases in DNA. C. A mutation in a somatic cell will be passed on to subsequent generations. D. Without mutations, there would be no variation and no evolution. E. Some mutations remove nucleotides from a gene.

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In people with lighter skin, respiratory failure can lead to a change in the color of the skin. Which pigmentation factor is affecting this change?

A) hemoglobin B) folic acid C) carotene D) melanin

Biology & Microbiology