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Sav [38]
3 years ago
13

What is cross-pollination?

Biology
2 answers:
Aleksandr [31]3 years ago
5 0

Answer:

The correct answer is option B. Cross-pollination occurs when pollen fertilizes female egg cells on the same flower.

Explanation:

Hello!

Let's solve this!

Cross pollination is a type of pollination that occurs when the female and male part of the plant is on different sides or when they leave at different times on the same plant.

After the analysis, we will conclude that the correct answer is option B. Cross-pollination occurs when pollen fertilizes female egg cells on the same flower.

torisob [31]3 years ago
4 0
The answer is B. Cross-pollination occurs when pollen fertilizes female egg cells on the same flower.
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PLEASE HELP FAST! What does a chemical formula show?
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Answer:

B

Explanation:

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3 years ago
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One way to determine the density of animals in an area is to use the mark-recapture technique. A number of individuals from a po
NNADVOKAT [17]

Answer:

N = 187.55

Explanation:

Here you just need to replace the terms and clear the equation.

You already know that,

  • First capture: 25 prairie dogs.
  • First marked animals: 25 (the whole first capture)

You let these animals leave and then you made another capture.

  • Second capture: 135 prairie dogs
  • Already Marked animals: 18 (these 18 dogs were caught in the first capture and marked before releasing them)  

To know the size of the prairie dogs population you just need to use the following equation and clear N, which is the value that you are looking for.  

Number of individual marked in first catch/Total population size, N = Number of individual marked in 2nd catch / Total number of 2nd catch

  • Number of individual marked in first catch = 25 dogs
  • Total population size, N = this is what we want to know
  • Number of individual marked in 2nd catch = 18 dogs
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So now, we need to replace terms

25 / N = 18 / 135

25 / N = 0.1333

N = 25 / 0.1333

N = 187.55

4 0
3 years ago
Is white sugah good for health?
EleoNora [17]

Answer:

<h3>White sugar is polished and refined sugar. It has a high glyciemic index (Glycemic index)</h3><h3>GI represents the total rise in your blood sugar level following consumption of the food. White sugar probably has a GI of around 96 which is pretty close to the highest (100 of pure glucose). </h3>

<h3>Hence it is unhealthy because the body is unable to burn off this sudden spike in glucose levels.</h3>
4 0
3 years ago
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What organ lies on the outer wall of the testes within the scrotum?
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3 years ago
A circular molecule of DNA contains 1 million base pairs. If the DNA synthesis at a replication fork occurs at a rate of 100,000
lakkis [162]

Answer:

<h2>5 minutes </h2>

Explanation:

1. In bidirectional replication;  there are two replication forks, and each proceeding at a rate of 100,000 (as given in the question) nucleotides per minute.  

2. So, by  the given rate of replication, we can calculate that, it would require 5 minutes for the circular DNA molecule to be replicated by bidirectional replication because each fork synthesize  500,000 nucleotides in 5 minutes ( 100,000 per minute) ( as given, in 5 minutes × 100,000 nucleotides per minute= 500,000 and by 2 forks= 1,000,000) within the time period.  

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