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inessss [21]
3 years ago
7

What factors influence a region's photosynthetic productivity? nutrients and sunlight temperature and density sunlight and depth

salinity and sunlight?
Biology
1 answer:
jeka57 [31]3 years ago
4 0

Answer: Nutrients and Sunlight

Explanation:

Nutrients and sunlight are two important factors for photosynthesis. Nutrients are necessary for keeping the plant alive these nutrients such as inorganic minerals are obtained by plants through soil. The sunlight is essential for splitting the molecules of water so as to produce oxygen as a product along with carbohydrates.

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Which of the following transmits genes from both parents to child, or from one generation of a family to another?
Luba_88 [7]

Answer:

A

Explanation:

DNA encoded all genetic information that has to be transferred from generation to generation

8 0
2 years ago
A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
Len [333]

Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

3 0
3 years ago
What characteristic of earth maintains water in the liquid state needed for life
yawa3891 [41]
There are several. there is rainwater*, glaciers, and rivers/streams.

*the rainwater I am talking about is the kind that falls from the country. no acid rain 
7 0
3 years ago
Assume that a DNA double helix contains 100 base pairs (one pair is A-T or C-G) and there are 45 cytosines.
pochemuha

Cytosine(C) binds with Guanine(C)

Adenine(A) binds with Thymine(T)

a.From here we can deduct that there are the same number of nucleotides of guanine that as cytosine=>G=45 base pairs

b.2A=100-G-C

   2A=100-90 2A=10 A=5 base pairs

6 0
3 years ago
What is an Non-native or Invasive species do to the environment?
EleoNora [17]

Answer:

They can destroy the ecosystem or out - compete a native species.

Explanation:

For example, if an invasive species of tree is taller than the native species of tree and therefore takes up more sunlight, leaving the shorter native tree not enough sun, then it will effectively kill the native tree.

Also non - native and invasive are not the same thing. A non - native species doesn't necessarily mean it's invasive. It is only invasive if it begins to have a significant impact on the ecosystem it is inhabiting.

5 0
2 years ago
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