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Umnica [9.8K]
3 years ago
15

Shale rock was found on the top layer of a limestone sample. There is a leaf imprint on the shale rock and a fish fossil on the

limestone. What can scientists learn from the imprint and fossil?
A) The area has always been land with trees.
B) The area was once a desert with palm trees.
C) The area changed from water to land with trees.
D) The area changed from land with trees to water.
Biology
2 answers:
Airida [17]3 years ago
8 0

Answer:

<u>C) The area changed from water to land with trees</u>.

Explanation:

  • As the area was once filled with water as suggested by the shale rocks and has the deposits of limestone and hence the imprints of the leaves on the rocks were formed at the time when the fossils like fish were found to be swimming in the lake or seas.
  • Thus the development of the area took place and water dried up form the lake or get seashore and thus sedimentary rocks had the imprints of the fossils on them.
FromTheMoon [43]3 years ago
7 0

Answer:

C) the land changes from water to land with trees

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________ are enzyme used during replication to attach okazaki fragments to each other.
Effectus [21]

Answer:

DNA ligase

Explanation:

After Okazaki fragments (sequences complementary to the lagging strand of DNA) are produced, they must be joined together to produce a continuous strand. The Okazaki fragments are then joined up by DNA ligase, which catalyzes the formation of a phosphodiester bond between the neighboring nucleotides.

4 0
3 years ago
Taxonomy is an organizing science used in _____.
Iteru [2.4K]
Its all of the above, bc taxonomy is where u classify organisms
6 0
3 years ago
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Look at the following, and decide if they are carbohydrates or not.
Aliun [14]

Answer:

A. C4H8C4  - NOT

B. C12H12C4  - NOT

C. CóH1206  - yes

D. C4H2020 - NOT

Explanation:

Carbohydrates are one of macro molecules made up of carbon, hydrogen and oxygen. These are essential molecule as they provide nutrition and makes structural component in plants too.

The ration of carbon, hydrogen and oxygen is similar in almost every sugar or carbohydrate which is 1:2:1, one carbon molecule and one oxygen molecule per two molecule of hydrogen.

In choice A, and B have no oxygen molecule so they can not be carbohydrate, where as D have inappropriate ration in comparison to the carbohydrates.

Thus, the correct answer is :

A. C4H8C4  - NOT

B. C12H12C4  - NOT

C. CóH1206  - yes

D. C4H2020 - NOT

4 0
3 years ago
If a particular strand of DNA is found to be 27% adenine, how much guanine would it contain
Naddika [18.5K]

Answer:

You have 20% of adenine. If you have 20% of adenine than you have 20% of thymine, because the amount of adenine and thymine is equal. 20% plus 20% is 40% of adennine and thymine. From 100% DNA bases subtract 40% and you will get 60%. Then divide this by 2 and you will get 30%. 30% of guanine and 30% of cytosine, because their amounts are equal in the DNA stand.

Explanation:

6 0
2 years ago
Blue jays and crows eat caterpillars and mice. if the number of blue jays increases, what are the two likely effects on other po
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If the number of blue jays increases, the two likely effects on other populations are both the number of mice and the number of caterpillars will decrease.

<h3>What are two likely effects on other populations due to the increment in Blue jays population?</h3>
  • An organism that preys on other species in order to consume them as food is referred to as a predator.
  • Prey is a term used to describe an organism that a predator kills.
  • An ecosystem's ability to balance an expanding prey population depends on the interaction between predators and their prey.
  • Blue jays and crows both rely on mice and caterpillars as food sources, as indicated by the current circumstance.
  • Mice, caterpillars, and blue jays are the prey, while crows and crows are the predators. The two prey populations will decline if the number of blue jays rises.

Hence, both the number of mice and the number of caterpillars will likely drop as the number of blue jays rises, having two possible implications on other populations.

To learn more about Predator refer to:

brainly.com/question/12655080

#SPJ4

5 0
1 year ago
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