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Ilia_Sergeevich [38]
3 years ago
10

I need an answer to thos anyone willing to help?​

Biology
1 answer:
Artyom0805 [142]3 years ago
5 0
I could try and help
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Plant viruses spread throughout the plant by way of __________. View Available Hint(s)for Part A chloroplasts plasmodesmata vert
KatRina [158]

Answer:

Plasmodesmata

Explanation:

Plasmodesmata are microscopic channels which traverse the cell walls of plant cells and some algal cells, enabling transport and communication between them. This is the path that viruses use to spread throughout a plant's system.

Hope this helped! :^)

7 0
2 years ago
When doing medical research with human subjects, which four limitations are un voidable?
viva [34]

The four limitations are

1.It's often impossible to repeat trials on the same subjects.

2-Subjects may report an inaccurate medical history.

3-It can be difficult to control all possible variables.

4-It's impossible to come up with testable scientific questions for human subjects.

Research involving human beings is ultimately necessary for improvements in human health and welfare. Any results about healthy physiology, illness causes, treatment effectiveness, learning, or behavior must be verified by carefully controlled investigations involving human participants. Sadly, not all human research have been valid and beneficial. It is possible to harm people in the name of research. The most well-known instances happened in Nazi Germany. Investigations conducted after the war found several crimes, including experiments in which participants were submerged in extremely cold water to determine how long it would take them to pass away from hypothermia.

Learn more about Medical research here

brainly.com/question/15215894

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6 0
2 years ago
A dog breathes out CO2 and a tree releases O2. How are the dog and the tree connected in the oxygen cycle?
Hitman42 [59]
A dog breathes in oxygen and then releases carbon dioxide when he exhales. Conversely, a tree gives off oxygen and takes in carbon dioxide. So the breath of the dog sustains the tree while the output of oxygen for the tree sustains the dog.
6 0
3 years ago
7. Glucose molecules are the building blocks of what
Zepler [3.9K]

Answer:

Proteins and Carbohydrates

Explanation:

5 0
2 years ago
Scientific evidence documents the pattern of evolution. The evidence exists in a variety of categories, including direct observa
anzhelika [568]

Answer:

Direct observation of evolutionary change: creation of drug-resistant bacteria.

Fossil record: discovery of transitional forms of animals, discovery of shells of extinct organisms

Homology: similarities in mammalian forelimbs, identical genetic code in fireflies and tobacco plants, vestigial pelvis in right whales

Biogeography: resemblance of endangered island species to neighboring mainland species,

3 0
3 years ago
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