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Zinaida [17]
3 years ago
10

Cell division in an animal cell. (False-color LM: 9000x)​

Biology
1 answer:
natali 33 [55]3 years ago
6 0

Answer:

true

Explanation:

The centrosome is a cellular organelle which is the main microtubule organizing centre in an animal cell which also regulates the process of cell-cycle.

They are made up of two centrioles which are right angled to each other and is composed of a protein known as tubulin.

So the statement is true.

plz mate mark me as brainliest

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Which of the following is the best definition of a eukaryote?
yarga [219]

Answer:

The answer is:

A. An organism whose cells each contain a membrane-bound nucleus.

Hope that helps. :)

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3 years ago
Angiosperms do not need water for fertilization. Why? (3 points) Group of answer choices Flagellated sperm travel to the ovary i
astraxan [27]

Answer:

A pollen tube grows from the pollen grain into the ovary

Explanation:

Water is needed for fertilization in several plant groups because the sperm needs to swim to meet the non-motile eggs of the female organs.

<em>However in angiosperms, the pollen germinates and a structure known as pollen tube which contains the male gametophyte (sperm) grows into the ovary where the ovule is located and the male gametophyte is deposited in the ovule to initiate the fertilization process.</em>

<em>Hence, water is really not necessary for fertilization in the angiosperms.</em>

5 0
3 years ago
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Que características poseen los babuinos que no poseen los Lemures
Vedmedyk [2.9K]

Answer:

Opposing thumbs, expressive faces, complex social systems: it's hard to miss the similarities between apes and humans. Now a new study with a troop of zoo baboons and lots of peanuts shows that a less obvious trait -- the ability to understand numbers -- also is shared by humans and their primate cousins.

"The human capacity for complex symbolic math is clearly unique to our species," says co-author Jessica Cantlon, assistant professor of brain and cognitive sciences at the University of Rochester. "But where did this numeric prowess come from? In this study we've shown that non-human primates also possess basic quantitative abilities. In fact, non-human primates can be as accurate at discriminating between different quantities as a human child."

"This tells us that non-human primates have in common with humans a fundamental ability to make approximate quantity judgments," says Cantlon. "Humans build on this talent by learning number words and developing a linguistic system of numbers, but in the absence of language and counting, complex math abilities do still exist."

Cantlon, her research assistant Allison Barnard, postdoctoral fellow Kelly Hughes, and other colleagues at the University of Rochester and the Seneca Park Zoo in Rochester, N.Y., reported their findings online May 2 in the open-access journal Frontiers in Comparative Psychology. The study tracked eight olive baboons, ages 4 to 14, in 54 separate trials of guess-which-cup-has-the-most-treats. Researchers placed one to eight peanuts into each of two cups, varying the numbers in each container. The baboons received all the peanuts in the cup they chose, whether it was the cup with the most goodies or not. The baboons guessed the larger quantity roughly 75 percent of the time on easy pairs when the relative difference between the quantities was large, for example two versus seven. But when the ratios were more difficult to discriminate, say six versus seven, their accuracy fell to 55 percent.

That pattern, argue the authors, helps to resolve a standing question about how animals understand quantity. Scientists have speculated that animals may use two different systems for evaluating numbers: one based on keeping track of discrete objects -- a skill known to be limited to about three items at a time -- and a second approach based on comparing the approximate differences between counts.

Explanation:

4 0
2 years ago
During the process of _____, two rails or sides break apart and pair up with RNA nucleotides, assembling mRNA.
pav-90 [236]

Answer: The correct answer for the fill in the blank is- Transcription.

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During this process, the two strands of DNA are first separated so that the template DNA ( that is having polarity 3' to 5') is exposed.

Using the template strand, RNA polymerase adds the RNA nucleotides according to the Watson and Crick base pairing and thus mRNA transcript is assembled.    

3 0
3 years ago
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Which of the following statements is correct?
telo118 [61]
The sun is at the center of our solar system but it is not the center of our universe
8 0
3 years ago
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