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Vlad [161]
3 years ago
15

How does pregnancy begin?

Biology
2 answers:
stellarik [79]3 years ago
7 0
ANSWER: In order for pregnancy to happen, sperm needs to meet up with an egg. Pregnancy officially starts when a fertilized egg implants in the lining of the uterus.
adoni [48]3 years ago
5 0

Answer:

In order for pregnancy to happen, sperm needs to meet up with an egg.

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2. How has genetics, combined with<br> paleontology, added to our<br> understanding of evolution?
motikmotik

Answer:

To find the extinct species and their divergence of characters can be studied using molecular genetic techniques.

Explanation:

  • Paleontology is the study of ancient species and their remaining that were found millions of years ago. These species extinction can be found and manipulated to find out the origin or divergence of species from their origin
  • The samples of these species may contains their remains that help the biologist to isolate and analyze their protein or DNA. when the DNA is isolated their sequences can be generated using molecular biology techniques.
  • When the sequences are identified by advanced molecular biology techniques, the existence and similarities of different species due to their convergence or divergence can be identified.
  • By identifying the convergence or divergence the characteristics, evolutionary change in behavior, variation in appearance can be studied.
  • By using these techniques, biologist have found that <em>homo sapiens</em>  are 99% have their similarities with chimpanzee
  • Thus, using genetics in paleontology helps us to understand adaptation a species is changing according to the evolutionary changes.

6 0
3 years ago
An astronomer who wishes to photograph the light spectrum would use a: spectrograph radio telescope refracting telescope reflect
adelina 88 [10]

They would use a spectrograph.

4 0
3 years ago
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As atividades ofertadas em uma academia de ginástica podem ser categorizadas em dois tipos: modalidades de exercícios físicos e
Varvara68 [4.7K]

Answer:

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Explanation:

3 0
3 years ago
A layer of gases that surrounds a planet literally ball of vapor
Mkey [24]
Atmosphere? I am not really sure what you are asking.
3 0
3 years ago
What problems would animals cells encounter if their cell had a cell wall?
sergey [27]
Cell walls, which are found in plant cells, maintain cell shape. Some animal cells dont need to maintain shape. Such as muscle cells, they are constantly moving.
6 0
3 years ago
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