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N76 [4]
3 years ago
15

Compare the number of pollen grains in each flower with the number of ovules. why do you think there is a difference?

Biology
1 answer:
ra1l [238]3 years ago
6 0
<span>The role of the pollen is for the sperm to reach the egg. In the process of transportation, a lot of pollen grains can get lost and therefore there is greater need for it to be more than the ovules, since the eggs do not have to be transported anywhere. </span>
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Which statement describes how diffusion works? answer for edgenunity ​
Gelneren [198K]

Answer:

Diffusion is the movment of particles from an area of high concentration to a low concentration down a concentration gradient

7 0
3 years ago
Consider the following three populations of birds. Assume HW equilibrium. With these birds red coloring is recessive, while brow
bixtya [17]

Answer:

Red allele frequency will be highest in population II

Population III can undergo bottleneck effect

The frequency of the brown allele will  least likely be altered in the population I

Explanation:

Population I -

Total population - 670

Brown birds - 603

Red birds - 67

Population II

Total population - 100

Brown birds - 90

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Population III

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Brown birds - 27

Red birds - 3

Frequency of red birds in population I

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Frequency of red birds in population II

\frac{10}{90} = 0.11

Frequency of red birds in population III

\frac{3}{30} = 0.1

Red allele frequency will be highest in population II and it will be equal to \sqrt{0.11} = 0.33 as compared to 0.31 in case of population I and III

Population III can undergo bottleneck effect because of smaller population size

The frequency of the brown allele will  least likely be altered in the population that has highest  brown individual , i.e population I

4 0
4 years ago
The genotype represents _____.
Nikitich [7]
A genotype is the genetic coding of a trait, so it's a paired combination of genes. A genotype has two alleles, which can be dominate or recessive, but overall the answer should be <span>a paired combination of genes</span>
4 0
3 years ago
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The bone of a dinosaur and the imprint of a leaf are examples of which kind of fossils
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B. Body, please let me know if that's right.
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After the centromeres separate during mitosis, the chromatids move toward opposite poles of the spindle and after cytokinesis be
Bond [772]
Hello there.

<span>Regulation of the cell cycle is dependent upon cyclins and cyclin-dependent kinases. The key(s) that allows a cell to progress beyond the restriction point is (are)

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4 years ago
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