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jarptica [38.1K]
3 years ago
10

Mutations of the brac1 gene in egg cells lead to breast cancer

Biology
1 answer:
jeka943 years ago
7 0

Answer:

a

Explanation:

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What happens during the light reaction of photosynthesis?.
Genrish500 [490]

Answer:

Chlorophyll absorbs the red and blue segment of the white light and photosynthesis occurs most efficiently at these wavelengths.

When the light falls on the plant, the chlorophyll pigment absorbs this light and electrons in it gets excited.

This process occurs in a complex protein system which is collectively called as a photosystem.

Explanation:

3 0
2 years ago
Hemlocks are a common type of tree in the northern forests of the United States. In studying one forest, a forester noticed that
Vlada [557]

Answer:

b. making an observation and asking a question

Explanation:

In scientific method there need to be a situation to be study. In this description, the scientist first observed that in a certain region there is some kind of trees and the other variable is the great amount of deer.

After making different observations, and some research of other areas similar to the one that is study, she is asking what is the relation among the animals and the trees.

The next step will be to formulate a hypothesis using all the data and the two variables that she observed.

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3 years ago
Compare a natural meadow with a cornfield in terms of biodiversity. in your answer, be sure to address the: • number of species
Mademuasel [1]

In a cornfield, only one plant species has dominated the area, that is the corn plant. While in a natural meadow, multiple species of plants occurs of different species. The presence of the different types of plants in the meadow will interact more number of insects in it as compared to the corn field. This will lead to more interactions among the different species in a natural meadow. The greater biodiversity of the natural meadow than the cornfield will support it better.

In case of any natural disaster, or a pest attack, all the plants will be killed in a corn field and so will the insects dependent on them, but in a natural meadow, if one plant species is killed by a natural disaster, other will still be alive. Hence, the ability to survive is greater in natural meadow.

5 0
3 years ago
Covalent bonds are in the air you breathe and the water you drink. How are covalent bonds formed?
Agata [3.3K]
Covalent bonds are formed when two non metal atoms share an electron. The atoms either give up or gain an electron, due to the outer shell being unstable.
4 0
3 years ago
A student identifies the following parts of a cell.
Molodets [167]

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mitochondrion becoz it is a membrane bounded organelle which is only present in eukaryotic cell

3 0
3 years ago
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