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Nezavi [6.7K]
3 years ago
5

A population of bacteria is treated with hand sanitizer. Because of genetic variation in the population, what is the possible ou

tcome?
A. All of the bacteria are already resistant
B. They will get better at obtaining a food source
C. The population will grow quickly
D. Some of the bacteria may be resistant and survive.
Biology
1 answer:
velikii [3]3 years ago
6 0

Answer:

D. Some of the bacteria may be resistant and survive.

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Marine organisms that are euryhaline would most likely be found in which environment?
finlep [7]

Answer: Coastal estuary

Explanation:

Euryhaline animals are able to live in the wide range of salinity.These animals have the ability to live in the variety of water mostly fresh water.

The coastal estuary is one of the habitat of such animals. The green crab, molly fish are some example of the animals found in this environment.

Some of the euryhaline animals are also found in the salt and brackish water, fresh water, moderately haline et cetera.

5 0
3 years ago
A sand storage tank used by the highway department for winter storms is leaking. As the sand leaks out, it forms a conical pile.
harina [27]

Answer:

Rate of change of volume of the pile  = 54\pi

Explanation:

Given -

Rate of increase of the base of the pile = 0.75 inches per minute

Height of the pile = 2 * the radius of the base

Let "h"  be the height of the pile and "r" be the radius of the base.

Then h = 2* r

Radius "r" = 6 inches

Rate of change of radius i.e

\frac{dr}{dt} = 0.75

Volume of conical pile

\frac{\pi }{3} * r^2 * h\\= \frac{\pi }{3} * r^2 * 2 * r\\= \frac{\pi }{3} *2* r^3

Change in volume of conical pile

\frac{dV}{dt} =  \frac{dr}{dt}  * \frac{6* \pi * r^2 }{3}

Substituting the value of rate of change of radius, we get -

\frac{dV}{dt}  = 2 * \pi * (6^2) * (0.75)\\\frac{dV}{dt}  = 54 \pi

Rate of change of volume of the pile  = 54\pi

8 0
3 years ago
You perform an in situ hybridization on Drosophila melanogaster embryos. You apply a probe labeled with a fluorescent stain that
Gekata [30.6K]

Answer:

f

Explanation:

6 0
3 years ago
Explain what happened genetically in the insect population.
Alekssandra [29.7K]

as insects became exposed to pyrethroids, toxicity of pyrethroids weakened over time. which means that Most insects had the allele for pyrethroid resistance, but it remained masked. The allele for said pyrethroid resistance, evidently increased throughout the population.

has this helped?

5 0
3 years ago
One MULTIPLE CHOICE QUESTION. If possible, please explain.
wolverine [178]
This diagram could represent a B.
protein because if you look at the bonds you will see an R group and R groups are typically found in proteins.
5 0
4 years ago
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