An atom has 20 electrons and 20 neutrons. What is the mass of this atom?

A. 20
B. 10
C. 40
D. 80


Answer: C

Biology & Microbiology

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Which of the following would be most attractive to a female hummingbird? A mate protecting a territory with

A) many predators. B) many nectar feeding animals. C) many nectar bearing flowers. D) many other males.

Biology & Microbiology

Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision have a color-blind son. What are the genotypes of the parents?

A) XnXn and XnY B) XNXN and XnY C) XNXN and XNY D) XNXn and XNY

Biology & Microbiology

________ make(s) up more than half the volume of the brain.

A. Intercalated disks B. Neurons C. Neuroglia D. Hyaline cartilage E. Nerves

Biology & Microbiology

The cell membranes of fungi contain (cholesterol/ergosterol/fatty acid) which is a target of some antifungal treatments

What will be an ideal response?

Biology & Microbiology