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pochemuha
2 years ago
15

Which is a source of adult stem cells? bone marrow amniotic fluid embryos gametes

Biology
1 answer:
Lorico [155]2 years ago
5 0

Answer:

Bone marrow is a source of adult stem cell

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AJUDA, PLEASE!!! Qual é a resposta certa?
Svetach [21]

Answer:a, b, d

Explanation:

6 0
3 years ago
The first division of meiosis is called a reduction division. This is because
katen-ka-za [31]

The correct answer is: the mother cell is diploid, but the products of the first division are haploid.

Meiosis is cell division with the purpose to produce the gametes: sperm and eggs. Meiosis is a two-step division process:

• meiosis I- Homologues pairs (chromosome pairs an organism receives from parents, one from mother, one from father) separate during this phase  

•  meiosis II – Separation of sister chromatids.

7 0
3 years ago
Which stage is the last stage of speciation? Question 5 options: The populations become adapted to different environments and ev
kvv77 [185]

The stage is the last stage of speciation The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

Speciation is split into 3 stages:

a) Separation.

b) Adaptation.

c) Reproductive Isolation.

Stage 1 Separation

  • A part of the populace separates and adapts to a brand new environment. Natural occasions along with tsunamis, tidal waves can reason organisms to split from their preliminary habitat to a brand new environment.

Stage 2: Adaptation.

  • At this stage, the organisms evolve new trends that permit them to a brand new environment. They own sure traits that permit them to match into the brand new environment. Example The notable white skin's color makes it tough for it to be visible withinside the dark.

Stage 3: Reproductive Isolation.

  • At this stage, organisms of the equal species reunite and do now no longer interbreed. e, species are remoted into new ones in order that they have the great diversifications for or her new habitat.

<h3>What is speciation?</h3>

Speciation is an evolutionary method where the new species arises from previous ones.

Hence concluded that speciation involves the stage where the populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.

To learn more about speciation  refer to the link :

brainly.com/question/1963978

5 0
2 years ago
The image is showing two possible ways non-homologous chromosomes may line up during metaphase 1 of meiosis 1. Which of Mendel's
Serga [27]

Answer:

D) Mendel's law of independent assortment

Explanation:

i just did it on USATESTPREP and got it right

5 0
3 years ago
Read 2 more answers
37. A scientist carries out an experiment. How could she help other scientists judge the validity of her results? (2 points)
algol [13]

Answer:

Let other scientists closely review her work

Explanation:

Ideally, experiments are carried out by scientists to find solution to an observed problem or provide answer to a scientific question. However, the outcome of experiments are not generally accepted in the world of science until they are peer-reviewed.

Peer review is when other scientists in the same field (peers) with the scientist performing the experiment make a thorough evaluation in order to ascertain its quality as a scholarly research. Hence, in this question, the scientist could help other scientists judge the validity of her results by LETTING OTHER SCIENTISTS CLOSELY REVIEW HER WORK.

3 0
3 years ago
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