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3 years ago

What is the main difference between active and passive transport?

Biology

1 answer:

Dovator [93]3 years ago

8 0

Answer:

B)the energy required

Explanation:

The difference between active and passive transport is in the amount of energy they both require.

Active transport requires energy to move molecules such as ATP and ions against a concentration gradient.
Passive transport moves molecules from higher concentration region to one with lower concentration without requiring energy.

Energy is the ability to do work. In passive transport, energy is not used. But in active transport, energy is required.

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Your risk of becoming obese increases by at least one-third if your partner, spouse, sibling, or close friend is obese. Your ris

svlad2 [7]

Answer:

The correct answer is: True.

Explanation:

Obesity is a disease condition in which the BMI or Basal Metabolic Index of a person goes beyond normal.
The BMI of a person is calculated by finding the ratio between the weight of the person measured in kilograms and the square of the height of the person measured in metres.
A person having a BMI below 18 is considered to be underweight, between 18 and 25 is normal weight, between 25 and 30 in overweight and above 30 is obese.
The disease is caused more due to social reasons than biological reasons.
When a person A lives near the vicinity of another person B who is obese, this means the person A lives in an environment where a proper balanced diet is not maintained during the consumption of food. They tend to consume food rich in oil and fat.
Hence, the intake of the fat rich food by the person A will result him in consuming fat and oil in amounts far more than his body actually requires. Excess fats deposits in the body thereby increasing his BMI and resulting into obesity.
Due to obesity the person B will also show the symptom of being lethargic and will not prefer to do exercises. This lethargy would be induced in person A as well.

4 0

4 years ago

In a field of sunflowers, there are varying heights. A plant breeder is determined to breed out all of the extremely tall and ex

vampirchik [111]

The answer is C) Stabilizing

4 0

3 years ago

For each of the diploid genotypes presented below, determine the genetic make up for all of the possible haploid gametes.

Alecsey [184]

Answer:

a. R and r

b. RY, Ry, rY, and ry

c. rY and ry

d. RY and rY

e. RYB, RYb, RyB, Ryb, rYB, rYb, ryB, and ryb

Explanation:

According to Mendelian principle, a gene is made up of 2 alleles and these alleles segregate during gametes formation to randomly unite back during fertilization. Hence;

Rr can only segregate as R and r

RrYy can segregate as RY, Ry, rY, and ry

rrYy can only segregate as rY and ry

RrYY can only segregate as RY and rY

RrYyBb can segregate as RYB, RYb, RyB, Ryb, rYB, rYb, ryB, and ryb

8 0

3 years ago

In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation th

Sloan [31]

Answer:

D. a mutation

Explanation:

This would be called a mutation because it stated above neither of it's parents have it so say for humans both parents have 2 arms which is normal. They have a child and he/she only has one arm thus mutation.

7 0

3 years ago

Read 2 more answers

There was a massive earthquake that separated a large population into two groups on opposite sides of a valley. If members of th

Elza [17]

Answer:

Sympatric speciation

Explanation:

There may be more than one answer here, but concerning speciation, sympatric speciation can't occur because of the geographic isolation (must be living in the same environment for this to occur).

6 0

3 years ago