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kotegsom [21]
3 years ago
15

______ is a factor of evolution that occurs when natural disasters or organisms moving to another place cause the gene pool to s

hrink
-mutation
-microevolution
-population shrink
-natural selection
Biology
1 answer:
olga55 [171]3 years ago
4 0
Natural selection is a factor of evolution that occurs when natural disasters or organisms moving to another place cause the gene pool to shrink
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The producers in the ecosystem produce 25,000,000 kilocalories per year. How much energy is most likely available to the organis
Svetlanka [38]

Answer:

The correct answer is - 25,00,000 Kcal

Explanation:

The transfer of energy in the trophic level is move with each successive level of the trophic level of the pyramid. Energy transfer takes place in a manner that only 10% of the available energy move to the next level and the rest 90% of energy lost as heat and other processes.

So ith producers produce 25000000 Kcal than only 10 % of this will transfer to the next level or the second level of the pyramid

Producer ---->     primary consumer  ----> secondary consumer

100% energy      10% energy of producer     10% of primary consumer

So, the 10% of 25000000  ----->  2500000

8 0
3 years ago
select all that apply. there are distinct differences and similarities between prokaryotes and eukaryotes; the similarities are
geniusboy [140]
They both have a plasma membrane and protoplasm.

They both contain DNA.
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3 years ago
Specialized lymphatic capillaries called lacteals are
Vlada [557]

Answer:

Necessary for the transport of dietary lipids. (Ans. C)

Explanation:

Lacteals are specialized lymphatic capillaries which helping in to absorb dietary fats that are present in the villi of the small intestine. With the help of bile, triglycerides is emulsified, and with the help of enzyme lipase, triglycerides is hydrolyzed, these (emulsified and hydrolyzed) results in the mixture of di, monoglycerides, and fatty acids.

The villi are finger shaped, and tiny in size which helping in to increase the surface area. Intestinal structure is known as lacteals which helps in the transport of glycerol, and fatty acids aside from the small intestine in the lymph.

5 0
3 years ago
Is the most prevalent and most curable type of cancer found in women. uterine cancer lung cancer ovarian cancer skin cancer?
Rashid [163]
Lung Cancer is the leading cause of cancer deaths in women, killing more women each year than breast cancer, ovarian cancer, and uterine cancer. Patients diagnosed with early stages of Hodgkin Lymphoma have a 90 - 95 % survival rate. But out of this list, the most curable cancer is Ovarian cancer. Ovarian cancer has an average of fewer than 200,000 cases per year and 7.2 per 100,000 deaths in women per year. 

6 0
3 years ago
4. In humans and all creatures constructed of eukaryotic cells, the DNA always resides in the .
Lady_Fox [76]

Answer:

Nucleus (as nuclear DNA),mitochondrial(mitochondrial DNA) and chloroplasts.

DNA is packed tightly around protein called Histones, in Eukaryotes cells;so that many molecules can easily be held together as chromosomes.

Chromosomes are thread-like structure in nucleus of cells.The histones provide support to the DNA molecule

The part DNA molecule coded for by a polypeptide is GENE, therefore  in the nucleus of cells, DNA contains GENE,and the gene and DNA are packed in chromosomes,DNA appears as circular DNA mitochondria

Explanation:

8 0
3 years ago
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