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agasfer [191]
4 years ago
5

An ecologist studying communities would study which of the following?A. The development of males' mating dances in a particular

species of spider.B. Changes in the size of a mouse population after hawks, a main predator of mice, are introduced into the area where the mice live.C. Changes in the abundance of a particular species of frog in a portion of a rainforest over time.D. The effects of soil erosion on plant species found on the side of a mountain
Biology
1 answer:
cricket20 [7]4 years ago
4 0

Answer:

B. Changes in the size of a mouse population after hawks, a main predator of mice, are introduced into the area where the mice live

Explanation:

A community is defined as a group of populations of two or more different species which inhabit the same area at a certain time.

Community ecology is the study of the interactions between species in communities through time on a certain place. It includes the study of the distribution, structure, demography, and interactions between populations.

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Prokaryotes are structurally simple creatures that have existed for over a billion years. Which of the following are prokaryotes
GrogVix [38]

Answer:

Bacteria

Explanation:

Jus took tha test

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weathering has to change the soil not transport it

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Carbon-14 is useful for dating fossils that are ______.
MrRissso [65]

Carbon-14 is useful to estimate the date of fossils that are less than 50,000 years old.

Option C

<u>Explanation:</u>

Carbon-14 is the best option to use by estimating the date of fossils that are below 50,000 years old. This is because the carbon-14' half-life is around 5730 years i.e. the existing Carbon-14 in the living bodies decays in 5730 years once they die.

That's the reason Carbon dating utilized to estimate the age of objects that are below 50,000 years old. Objects such as dead plants, wood or human artifacts that are younger than 50,000 years.

After the death of living beings, Carbon 12 and Carbon 14 existing in these organisms starts decaying by converting into Nitrogen. By estimating the leftover amount of carbon 14 in their bodies, scientists can evaluate their age.

6 0
4 years ago
To respond to a chemical signal, a cell must have a ? to which the signaling molecule can bind.
Sphinxa [80]
A cell must have an atom
4 0
3 years ago
When a substance abuse treatment program is acquired by another program, what is the the next course of actions?
Bezzdna [24]

When a substance abuse treatment program is acquired by another program, the next course of action is that <u>if any patients refuse consent to transfer, those records maybe destroyed or retained in compliance with the statue of limitations</u>

Explanation:

The Substance Abuse Confidentiality Regulations devised by the Substance Abuse and Mental Health Services Administration provides confidentiality to the patients undergoing a treatment program for substance abuse.  

Under this regulation, section 2.19 details and sets forth rules to follow when a program is acquired by another program.

This states that the program must either purge the identifying details of the patient from its records or destroy it until or unless the patient consents for the transfer of details or information in the records.

This condition can be exceptional in compliance with the statute of limitations and the records can be retained, like in case of any legal requirements .

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