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malfutka [58]
3 years ago
12

Please HELP NOT SURE

Biology
2 answers:
bixtya [17]3 years ago
5 0
I believe it is all of the above. So D.
ipn [44]3 years ago
3 0
It’s d. All of the above
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Which forms of viral hepatitis are transmitted through the fecal-oral route?
e-lub [12.9K]

Answer:

Hepatitis A

Explanation:

  • Amongst the several types of viral hepatitis, it is hepatitis A that can spread through the fecal-oral route.
  • Usually, a person can acquire hepatitis A if he/she ingests contaminated food or water, further it can also spread through direct contact with the infected person.
  • due to its transmission through the fecal-oral route, lack of good sanitation practices and hygiene are the major causes for its spread.
5 0
3 years ago
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these f
cestrela7 [59]
1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.

2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
This is because the fossils accumulate at different ages of the rock layer, that means, the species dying over time. The gradual descent of the fossils is observed.

4. Describe an environmental change that could produce this type of fossil distribution.
For example, if a climate change occurs - the temperature increases or decreases - it can cause the trees or plants to die and all the animals in the ecosystem also die when they have no food. But this process is sequential, so the change can take years, centuries or even millions of years.

I hope this can help you.
4 0
3 years ago
HELP!!!!! which is a plant tissue???
kherson [118]
I think it’s leaf okkkkkkkkkkkkkkkkkkkkkk
6 0
2 years ago
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Is glycerol a <br><br> A) lipid<br> B) protein<br> C) carbohydrate
Rama09 [41]

Answer:

a

Explanation:

a lipid is the right answer

4 0
2 years ago
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Which if these is an example of behavioral isolation
Lubov Fominskaja [6]

“Two species of crickets, Gryllus rubens and Gryllus texensis, have different courtship songs which can be identified only by the opposite sex of their own species” is an example of behavioral isolation.

 

Behavioral isolation is an important evolutionary mechanism that helps members of the same species identify each other as proper mates.

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.


3 0
3 years ago
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