In your own words.. i’ll mark brainliest why do cells function better as smaller units

Biology

1 answer:

Tatiana [17]2 years ago

4 0

Explanation:

Cells function better at smaller units because if each cell had more areas in the body to take care of, they would need to do more hard work then they already do. Also, if we got scraped, we would lose less small cells then bigger cells. I hope this helped you!

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Pure-breeding sweet peas with purple flowers and round pollen are crossed with pure-breeding sweet peas with red flowers and lon

Anestetic [448]

Answer:

C. 40

Explanation:

Pure-breeding means that the individuals are homozygous for the genes being analyzed.

From Mendel's Law of Dominance we know that the traits that appear in the F1 are the dominant ones.

I will call:

P_ = purple flowers

pp = red flowers

L_ = long pollen

ll = round pollen

Initial cross:

P Pl/Pl x pL/pL

F1 Pl/pL

Test cross (cross with a homozygous recessive individual):

Pl/pL x pl/pl

Expected progeny:

Pl/pl = Parental (purple flowers, round pollen)

pL/pl = Parental (red flowers, long pollen)

PL/pl = Recombinant (purple flowers, long pollen)

pl/pl = Recombinant (red flowers, round pollen)

20% of the offspring have purple flowers and long pollen (PL/pl).

Every time crossing over happens in the meiosis of the F1 individual, both a PL gamete and a pl gamete form. That means that 20% of the offspring will also be pl/pl, and the total proportion of the offspring that will be recombinants will be 40%.

A distance of 1 map unit corresponds to a recombinant frequency of 1%.

A recombinant frequency of 40% therefore means that 40 map units separate the glower color and pollen shape genes.

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Concept review: factors influencing climate can you determine whether these factors have a warming or cooling effect on earth's

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There are many factors that influence the climatic conditions. The climate changes due to internal reasons as well as external factors. The most important factor is solar radiations. The greenhouses gases cause a Warming effect on earth's surface. The most important greenhouse gases are water vapour and carbon dioxide.

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The process by which glucose can pass through a membrane using special carrier proteins is called

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Facilitated transport

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Which of the following was NOT an important plece of farming technology created during the Industrial Revolution?

Pachacha [2.7K]

Answer:

im not sure about this one but i think it is the last one