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KonstantinChe [14]
2 years ago
15

What factors help blood move through veins?

Biology
1 answer:
horsena [70]2 years ago
6 0

The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.

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The cells of a mature pea plant have 14 chromosomes. how many chromosomes does a nucleus in the pea endosperm contain?
DIA [1.3K]

If pea plant cells contain 14 chromosomes, a pea plant's gamete cell contains 7 chromosomes.

<h3>Describe chromosomes.</h3>

Chromosomes are a pair of thread-like structures that are found in cells.

Re genes and a person's personality are found on the chromosomes.

Meiosis causes the daughter cells to contain half of each chromosome.

<h3>What does a chromosome do primarily?</h3>

Chromosomes' primary role is to transport DNA, which is the building block of all genetic material. DNA contains the genetic instructions for a number of cellular processes. These activities are necessary for the organisms' development, maintenance, and procreation. Chromosomes are shielded by proteins like histones.

To know more about Chromosomes visit:

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5 0
2 years ago
Which part of the bean see stores fpod for the early development of new plant​
Dovator [93]
Inside the seed there are is an embryo the baby plan and cotyledons. When the seed begins to grow, one part of the embryo becomes the plant while the other part becomes the root of the plant.
3 0
3 years ago
PLEASE I REALLY NEED YOUR HELP I´LL GIVE BRAINLIEST
erma4kov [3.2K]

Answer:

D the train

Explanation:

The train is safe very fast and was the first built

4 0
3 years ago
Read 2 more answers
Scenario 1: In a class of 50 students, 18 take Chorus, 26 take band, and 2 take both Chorus and Band.
satela [25.4K]

Answer:

Sample size is 50

Explanation:

The sample size simply refers to the number of samples in our dataset

In this question, we are dealing with a total of 50 students

So what this mean is that the number if samples which is our sample size is the number 50

7 0
3 years ago
In osmosis, water molecules move with the concentration gradient, therefore no energy is used. This is an example of:
olganol [36]

Answer:

The correct option is A. Inside of cell has more salt

Explanation:

When there will be more solute inside the cell than outside of the cell, then a concentration gradient will develop due to this uneven distribution. Water will move inside of the cell through a process known as osmosis. As the water molecules are moving along the concentration gradient, no energy will be used during this process.

The mechanism of osmosis is very essential in maintaining the turgidity of a cell.

4 0
3 years ago
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