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Tasya [4]
3 years ago
14

Explain how construction of dams changes the landscape?

Biology
1 answer:
kotegsom [21]3 years ago
6 0
Slows down water flow
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Why is cell division important for both single-celled and multicellular organisms?
vovikov84 [41]

Answer:

Because it is a mode for reproduction and growth.

Explanation:

Cell division is important for both single-celled as well as multi-cellular organisms.

In single-celled organisms, the cell division is the process which helps them to reproduce and form new organisms.

In multi-cellular organism, the cell division becomes more important because both, the division and growth in cells of multi-cellular organism occurs by means of cell division. When cells divide, the number of cells increases and it is seen as a overall growth in the organism. Damaged tissue repair is also accomplished by the cell division itself.

6 0
3 years ago
An asynchronous culture is given 3H-thymidine for a period of time, usually about 30 minutes. During the labeling period, 42% of
Sphinxa [80]

Answer:

How long is the G2 phase = 6hours

Explanation:

Cell cycle undergoes various stages  during mitotic cell division.

Normally cells are arrested in the resting phase G0 but as the cell division starts it undergoes G1 the growth phase then it undergoes S phase called the Synthesis phase in which the DNA synthesis occurs. Then it undergoes G2 Phase and is the shortest phase while G1 is the longest phase of the cycle. G2 normally lasts for 3-4 hours so here it may take 2.775 hours as due to presence of Thymidine the synthesis of DNA occur at high level so it contains higher levels of cellular DNA than in the G1 . so it will take  6hours G2 phase to occur.

7 0
3 years ago
What is the name of substance that the cells do not recognize in the body?
aivan3 [116]

Answer:

“Non-self” materials have proteins and other substances on their surfaces that the body doesn't recognize, called antigens.

Explanation:

6 0
2 years ago
Which of these individuals is a homozygous genotype? which of these individuals is a homozygous genotype? aa gg ag aa ag?
matrenka [14]
Aa, gg and aa are homozygous.
ag and ag are heterozygous.
4 0
3 years ago
Cuales son las ideas principales e ideas secundarias de la historia de la química?​
geniusboy [140]

Answer:

La historia de la química abarca un periodo de tiempo muy amplio, que va desde la prehistoria hasta el presente, y está ligada al desarrollo cultural de la humanidad y su conocimiento de la naturaleza. Las civilizaciones antiguas ya usaban tecnologías que demostraban su conocimiento de las transformaciones de la materia, y algunas servirían de base a los primeros estudios de la química. Entre ellas se cuentan la extracción de los metales de sus menas, la elaboración de aleaciones como el bronce, la fabricación de cerámica, esmaltes y vidrio, las fermentaciones de la cerveza y del vino, la extracción de sustancias de las plantas para usarlas como medicinas o perfumes y la transformación de las grasas en jabón.

4 0
3 years ago
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