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Scilla [17]
3 years ago
7

HELP!!!

Biology
1 answer:
jeyben [28]3 years ago
8 0

Answer: Point sources of pollution

Explanation:

The U.S. Environmental Protection Agency (EPA) defines point source pollution as “any single identifiable source of pollution from which pollutants are discharged, such as a pipe, ditch, ship or factory smokestack.” Factories and sewage treatment plants are two common types of point sources.

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Pavlov's dog salivates each time he hears a bell. Now, however, after several trials of salivating to the bell and not receiving
Salsk061 [2.6K]

Answer: Extinction has occurred.

Explanation:

In psychology, the extinction refers to the process of weakening of a conditioned response by the respondent. This actually results in decrease or disappearance of a particular behavior response.

In the given situation, the dog is showing the trait of salivation in the behavior but after the occurrence of number of trials the dog is not receiving any food this is a tiring situation for dog which made it to stop salivation. Thus here, the extinction of behavior that is salivation has occurred.

8 0
3 years ago
The greatest influence on a stable ecosystem in nature is;
salantis [7]
I think the answer is man
7 0
3 years ago
Read 2 more answers
BRAINLIESTTTT ASAP!!!<br><br> How can space exploration impact the economy and culture of a region?
Lilit [14]
Hello, Geny5!! Space exploration has affected the economy by simple things such as technology and airline businesses. In the technology field, portable devices, like cell phones, mostly started with portable communication systems in space. Whereas the airline business, a lot of the technology in airplanes today was used in order to travel to space and for exploration. If you think about it, when astronauts talk to each other in space, they are using portable technology like cell phones. In airplanes, they have oxygen and the ability to control how to stay in the air/fly/land, like rockets and other things NASA uses. Culturally, it would boil down to technology, again. Many things in our lives today are centered around technology, just like space exploration. They have to have the technology to get them into space and come back down. If it wasn’t for space exploration, we wouldn’t have computers, cell phones, or even solar panels. I hope this helped!! Have a great evening!! :)
8 0
4 years ago
Does the presence of homologous structures in genetically different animals suggest common ancestry?
natima [27]

Answer:

(A)Yes.

Explanation:

Homologous structures provide evidence for common ancestry.

Good Luck

8 0
2 years ago
What makes a fossil an index fossil ?
Masja [62]

Answer:

An index fossil is a fossil used to determine the age of the sediments in which it is found. When quickly approximating the age of new finds, an archaeologist looks at the rocks in which it is buried, as those sediments would have been on the surface at the time of the death of the pre-historic creature.

hope this helps

5 0
3 years ago
Read 2 more answers
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