Mutations in certain genes of bacteria cause them to be resistant to powerful antibiotics. What type of mutation is this for the bacteria?

A: beneficial

B: harmful

C: neutral

D: both beneficial and harmful

The main job of the small intestine is to

When eddies in a river whirl around sand and gravel, what do they cause? potholes stream piracy regolith removal headward erosion

What is true of the endocrine system?

Medicare hospital insurance (part a. is funded through what system?

A lichen is an organism that structurally appears to be a single organism. But a lichen is actually two different organisms-a fungus and green algae-living together as one organism.

Which of the following is a characteristic of lipids? (Choice A) AThey are composed of nitrogenous chains. (Choice B) BThey are not soluble in water. (Choice C) CThey are either fats or oils. (Choice D) DThey are polar molecules.

A 3-month-old infant hospitalized with severe diarrhea has excoriated skin in the diaper area. the parents become concerned when they discover that the nurse has left the infant without a diaper. what is the nurse's explanation for this action?

Which of the following is an abiotic factor of an ecosystem? A. weeds B. a rabbit C. soil D. a snake

The receptors for taste and smell are classified as

Under which condition is competition among wolves most likely? Question 4 options: When a disease kills a large amount of the rabbit population When new vegetation grows in the habitat, bringing new prey to the area When there is an increase in