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ivanzaharov [21]
3 years ago
5

Why does active transport require energy input by the cell?

Biology
1 answer:
kobusy [5.1K]3 years ago
8 0
Because the molecules that are being transported is moving against its concentration gradient. in other words, its moving from where its low in concentration to where its high in concentration
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In an ecosystem, can there be more carnivores than herbivores ?
vodka [1.7K]
There can but it will not last long. There are probably more carnivores because they were taking advantage of the supply of herbivores and now they will start to die off. So I guess my answer is no, not normally and not for a long time.
5 0
3 years ago
All nutrients in biological systems are _________
Allisa [31]
Pretty sure recycled
4 0
3 years ago
An advantage of blank reproduction is the ability to reproduce quickly
puteri [66]
The answer would be Asexual Reproduction. This form only requires one organism, they germinate and birth their offspring, without the need of a Female or Male, speeding up the reproduction process

Good luck :)
4 0
3 years ago
Bear pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown). D is dominant
White raven [17]

Answer:

9/16 black, 3/16 brown, 4/16 white

Explanation:

             BD         Bd          bD         bd

BD     BBDD      BBDd     BbDD     BbDd

Bd      BBDd      BBdd     BbDd      Bbdd

bD      BbDD     BbDd      bbDD     bbDd

bd       BbDd    Bbdd       bbDd     bbdd

A punnet square can be described as a diagram which is made to predict the genotype as well as the phenotypes of the offsprings of a cross.

To study the epistatis nature of the pigmentation in bear, a punnet square was made and the results of the punnet square are shown above.

The results of the punnet square show that the cross between two bears will have the chances of producing 9/16 black bears, 3/16 brown bears and 4/16 white bears.

4 0
3 years ago
Que Afirmo La Tercera Ley De Newton<br>​
Anna11 [10]

Answer: si un objeto A ejerce una fuerza sobre un objeto B, entonces el objeto B debe ejercer una fuerza de igual magnitud en dirección opuesta sobre el objeto A.

Explanation:

4 0
3 years ago
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