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suter [353]
3 years ago
11

I need help on this question in biology and biology is hard and confusing

Biology
2 answers:
kramer3 years ago
6 0

Answer:

The answer is b

Explanation:

The answer is b because if you want something to die out then they obviously have to stop reproducing in order to do this you have to stop breeding with them.

Yuliya22 [10]3 years ago
4 0

Answer:

b. the new species must be unable to breed with the original species.

Explanation:

By definition, species are defined as groups of similar organisms that can live and breed freely. This means that individuals in that species can interbreed and produce viable, fertile offspring. However, two different species cannot interbreed to produce fertile offspring due to biological barriers known as mechanisms of reproduction isolation.

These barriers are broadly classified as pre and postzygotic. Prezygotic barriers include the following:

  1. Habitat isolation: Two species occupy entirely different and distant habitats.
  2. Temporal isolation: Two species  procreate at different times of the year.
  3. Behavioral isolation: Two species exhibit different mating behaviors.
  4. Gametic isolation: The gametes of the two species cannot fertilize.
  5. Mechanical isolation

Speciation, the production of an entirely new species, requires a maintenance of genetic diversity. Therefore, the new and original species cannot interbreed as this would limit the gene pool and decrease genetic variations.

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An organism has 4 duplicated chromosomes. How many sister chromatids does it
RUDIKE [14]

Answer: A - 8

Explanation:

3 0
3 years ago
Patient: 67 year old female diagnosis: heart failure prescription: daily dose of 48.5mcg of digoxin. how milligrams would be
Goshia [24]

Assuming the body weight of the woman is 67 kg, milligrams of digoxin required per day for the woman will be 3.25 milligrams.

<h3>What is drug dosage?</h3>

Drug dosage refers to the amount of drug required to be administered to a patient per given time based on body weight or age.

The dosage for digoxin for treatment of heart failure for the 67 year old woman is 48.5 mcg/kg body weight.

Assuming the body weight of the woman is 67 kg, milligrams of digoxin required per day for the woman will be 48.5 * 67/1000 = 3.25 milligrams.

In conclusion, the dosage of drugs depends on age and body weight.

Learn more about drug dosage at: brainly.com/question/11185154

#SPJ1

8 0
2 years ago
How many genes code for hemoglobin?
Pepsi [2]

Answer:

Four

Explanation:

Like all proteins, the "blueprint" for hemoglobin exists in DNA.

3 0
3 years ago
Read 2 more answers
The first one will be the brainest
just olya [345]
<h2>Cell Analogy</h2>

Explanation:

  • Nucleus: Parents

As we see that parents control everything in the house. Similarly,the nucleus controls everything in the cell.

  • Cell membrane: Door

A door is analogous to the cell membrane because it allows people come and go. Similarly,the cell membrane in a cell can allow certain things to enter and exit.

  • Cytoplasm: Air

The cytoplasm fills the space in a cell. It is similar to air which is filled everywhere in the house.

  • Nuclear membrane: Security guard

The nucleus in a cell is protected by nuclear membrane. The nuclear membrane is analogous to secuity guard. As people in a house are protected by security guard, similarly nucleus is protected by nuclear membrane.

  • Endoplasmic reticulum: Hall ways

Endoplasmic reticulum transport things to other places in the cell. It is similar to hallways which help us to reach different places in the house.

  • Golgi bodies: Car

The golgi bodies modify,sort and package proteins.

It send them to other parts of the cell when needed.

It is similar to a Car which transports people and can store stuffs.

  • Mitochondria: Stove

The mitochondria in a house is analogous to Stove as it breaks down nutrients and turns them into energy. Similarly, the Stove in our house, cooks foods and it is converted into energy when consumed.

  • Ribosomes: Kitchen

The ribosomes are a cell structure that make protein. It is same as a kitchen in our house where people make food or proteins.

7 0
3 years ago
How long does it take for a giraffe to give birth after water breaks?
denis23 [38]
It takes approximately 4 days in Coon years.
5 0
3 years ago
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