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Inessa05 [86]
3 years ago
11

Which of the following describes the fetal period?

Biology
1 answer:
sasho [114]3 years ago
5 0
The period during which the umbilical cord develops
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What is a lunar calendar and who created it?
Aleksandr-060686 [28]

Answer:

The lunar calendar became the basis of the calendars of the ancient Chinese, Babylonians, Greeks, and Jews

Greek astronomers also devised rules for intercalations to coordinate the lunar and solar years. It is likely that the Roman republican calendar was based on the lunar calendar of the Greeks

7 0
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if the united states continues using petroleum in vast amounts, it will become even more dependent on foreign sources for this r
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Since we've been using petroleum in vast amounts organizations such as OPEC have appeared which restricts the U.S which ensued our country into suing; if this lawsuit passes then we will possibly be taking more petroleum than ever before due to it's demand such as it's needed for machinery and vehicles and etc. Most petroleum are from middle eastern countries, so our dependency will run rampant which will make us adhere to any of their policies pertaining to this fossil fuel in the near future.

8 0
3 years ago
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
Which of the following explains why it took so long for the public to accept the negative health effects of smoking?
Bogdan [553]

Answer:

I believe the answer is B  

Explanation:

I hope this helps

8 0
3 years ago
Can you tell the difference between the original and the replicated strand
kati45 [8]

Answer:

Original strand is the old strand and replicated strand is new strand.

Explanation:

DNA is replicated by the semi-conservative way which means the new strand is replicated over the old strand and one DNA duplex has one new strand and one old strand. So the original strand is the old strand and the replicated strand is the strand that is synthesized over the original strand.

In DNA the replicated strand is made by adding nucleotides complementary to the opposite nucleotide present in the template or original strand. Adenine and thymine make complementary base pairing with each other and guanine and cytosine makes complementary base pairing with each other.

6 0
3 years ago
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