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kenny6666 [7]
3 years ago
12

Plz help me answer this

Biology
2 answers:
Katarina [22]3 years ago
8 0
All of the above is the correct answer
Masja [62]3 years ago
6 0
The answer is leaves, first one
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never [62]

Answer:

nice.....................

Explanation:

yes

4 0
2 years ago
What is true about microevolution?
iris [78.8K]
Microevolution refers to changes that occur within a single species or group or organisms.  Microevolution, as opposed to macroevolution, occurs in a short period of time. In microevolution, the ancestor and the descendant obviously belong to the same type.  For example, certain pests have evolved in such a way that they become immune to pesticides; the same thing has happened to certain weeds and herbicides. Hope this helps.
6 0
2 years ago
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What is the Marcellus Shale, and why is it so important to ancient ocean life?
Natalija [7]

The Marcellus Shale also categorized as the Marcellus formation is a marine sedimentary rock unit of middle Devonian age found in eastern North America. It elongates throughout the major of the Appalachian Basin.  

The shale comprises huge unexploited reserves of natural gas, which makes it an attractive target for export and energy development. There are comparatively scarce presences of fossilized marine fauna found in the Marcellus, however, these fossils are still essential to paleontology.  

For example, the Marcellus comprises the primogenital known varied assemblage of thin-shelled mollusks, still possessing well-preserved shell microcomposition. It is also where goniatite, an extinct shelled swimmer identical to a squid, make their initial presence in the fossil record.  


8 0
3 years ago
In an experiment, it was found that newborn rats who were genetically predisposed to be skittish, nervous, and high-strung would
Pepsi [2]

Answer:

a) epigenetic change.

Explanation:

Epigenetic is referred to changes BESIDES the changes in the genetic changes. It means, not related to mutations but to chemical changes such as methylation, acetylation, ubiquitylation, phosphorylation, that can interfere with the genetic expression. Chromatin modification is another way of epigenetic change.

8 0
2 years ago
Why did the five-kingdom system of classification fall out of favor?
LenKa [72]

Answer:

Answer is B. It did not reflect the actual evolutionary relationships among organisms very well.

Explanation:

The five-kingdom system of classification was initiated or formed by Robert H. Whittaker in 1969. And it involved the Kingdoms monera, fungi, protista, animalia and plantae.

This classification system was regarded as not so good because of placement of some certain organisms. For example, in the classification system, unicellular algae were put under the kingdom protista, when other multicellular organisms like algae were being classified under the kingdom Plantae.

3 0
3 years ago
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