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Ugo [173]
3 years ago
5

The smallest portion of the human brain is the cerebrum. true or false

Biology
1 answer:
Savatey [412]3 years ago
3 0
That's false, it's the pons :)
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Pls answer its due soon!!!
pickupchik [31]

Explanation:

Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.

During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.

Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.

Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs.  In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.

Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.

5 0
2 years ago
Bryophytes never formedforests (mats maybe, but not forests)
podryga [215]

Answer:

C) they lack lignified vascular tissue. ( Since they do not have vascular tissues, they are not able to develop vertically like the trees we know.)

Explanation:

A) Plants do not have "sperm". They have sporophytes or gametophytes.

B) No specific parasitic bacteria of bryophytes are known.

D) In fact, they have. Although they require water for their reproduction, some species of bryophytes are found in deserts.

E) Rhizoids are not weak, otherwise they would not have the ability to keep bryophytes attached (mosses).

5 0
3 years ago
Which assumption must be correct for a population to be in hardy-weinberg equilibrium for a specific gene? see section 23.1 ( pa
Goshia [24]

There are five basic Hardy-Weinberg assumptions:

1. Random Mating -

2. No natural selection - all members of the parental generation survived and contributed equal numbers of gametes to the gene pool, no matter the genotype

3. No genetic drift (random allele frequency changes) - the population is infinitely large.

4. No gene flow - no new alleles were added by immigration or lost through emigration (no migration)

5. No mutation -  There must be mutation equilibrium.


7 0
3 years ago
Read 2 more answers
Calculate the number of International Flights​
elena55 [62]

Answer:

Hey mate....

Explanation:

This is ur answer....

<em>The number of flights performed globally by the airline industry increased steadily since the early 2000s and reached 38.9 million in 2019. However, due to the coronavirus pandemic, the number of flights dropped to 16.4 million in 2020.</em>

Hope it helps you,

mark me as the brainliest....

Follow me! ;)

4 0
3 years ago
Explain how the carbon cycle might be affected if we increased the extraction rate of fossil fuels.
vitfil [10]
More carbon would be released into the air with the burning of more fossil fuels and the environment would not be able to process the extra carbon.<span />
4 0
3 years ago
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