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Lina20 [59]
3 years ago
8

When huge numbers of species die out in a short period of time, it's known as a mass extinction.

Biology
1 answer:
Black_prince [1.1K]3 years ago
4 0
True. When huge numbers of a species die over a short period of time, the term, mass extinction, is used to describe this. 
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Which statement correctly describes the difference between cellular respiration and photosynthesis?
Oksanka [162]

Answer:

The answer is E.

Explanation:

An anabolic reaction is one that involves the building of complex substances from simple ones and it uses up energy. Photosynthesis is an anabolic reaction because It requires energy.

A catabolic reaction is one that involves the breakdown of complex substances into simpler ones and in the process energy is released. Cellular respiration is catabolic because energy is released during this process.

7 0
3 years ago
What signals the end of<br> the cell cycle?<br> A. cell death <br> B. Cancer <br> C. Cell division
Elenna [48]
A, because after cell death there starts a new life for cells
4 0
3 years ago
A soft, very fine-grained limestone formed via the accumulation of the calcium carbonate remains of microorganisms is known as:
sergij07 [2.7K]

The organism or product that is being described in the sentence above is chalk. This is the product that is formed with the use of the remains of calcium carbonate. It has a mineral calcite and useful for writing or drawing in smooth and writable surfaces.

4 0
3 years ago
What is the correct term for anthropology’s commitment to studying the entire picture of human life, including culture, biology,
jekas [21]

Holism.

Explanation:

Anthropology is the branch of scientific studies that deals with study of human development in terms of body structure, culture,social behavior and language.

Biological anthropology deals with the evolution of man on the basis of biological structures.

Cultural anthropology deals with the evolution of different culture and society.

Social anthropology deals with the evolution of various societies from the time when man was totally uncivilized.

Linguistic anthropology  deals with the study of evolution of languages.

In short anthropology deals with all the aspects of human beings. This commitment of anthropology to studying the entire picture of human life,including culture,biology,history and language is termed as Holism.

6 0
3 years ago
Mutations rII1 and rII2 are known to fall into the rIIA and rIIB cistrons (genes) respectively. Cells of E. coli B are infected
viktelen [127]

Answer:

the answer is A. E. coli B

Explanation:

The multiplicity of infection (MOI) refers to the ratio between the numbers of viruses used to infect <em>E. coli</em> cells and the numbers of these <em>E. coli </em>cells. Benzer carried out several experiments in order to define the gene in regard to function. Benzer observed that <em>E. coli </em>strains with point mutations could be classified into two (2) complementary classes regarding coinfection using the restrictive strain as the host. With regard to his experiments, Benzer observed that rII1 and rII2 mutants (rapid lysis mutants) are complementary when they produce progeny after coinfect E. coli K (where neither mutant can lyse the host by itself). The rII group of mutants studied by Benzer does not produce plaques on <em>E. coli</em> K strains that carry phage λ (lysogenic for λ), but they produce plaques on <em>E. coli</em> B strains. This study showed that rIIA and rIIB are different genes and/or cistrons in the rII region.

3 0
3 years ago
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