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inysia [295]
3 years ago
13

When does the cell have to use active transport ?

Biology
1 answer:
soldier1979 [14.2K]3 years ago
8 0
The cell has to use active transport when it's trying to transport material against the concentration gradient. (from low to high concentration) Or, if a molecule is too big to diffuse through the cell membrane, it must be moved through using a carrier protein.
Hope that helped you.
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The best contraceptive method for sexually active people not in a monogamous relationship is __________.
Varvara68 [4.7K]
Answer;
The best contraceptive method for sexually active people not in a monogamous relationship is Condoms.

Explanation;
Contraception and fertility control are methods or devices that are used to prevent pregnancy. Contraception methods ,may be classified as; hormonal methods (such as combined hormones), barrier methods (e.g use of condoms), Intrauterine Device use, and Natural methods (such as abstinence). Condoms is a type of barrier methods of contraception that is best for sexually active people that are not in a monogamous relationship.
4 0
3 years ago
What cell organelle can be seen changing position in the moving cytoplasm of elodea?
Tom [10]
<span>Once the cytoplasm of the amoeba is moving, all the cells in the said cytoplasm will move as well. Consequently all the cell organelles can be seen changing positions. The cytoplasm’s ability to move is dependent on the entire composition of cell organelles that make up the said cytoplasm.</span>
3 0
3 years ago
Mechanical energy is defined as the sum of both the potential energy and the kinetic energy of an object. According to the law o
icang [17]

i think the answer is B, i may be wrong... because potential energy is stored energy and kinetic energy is energy due to motion so the less potential energy the more kinetic energy

and mechanical energy means the energy of motion, such as a moving vechile which is using kinetic energy.

5 0
3 years ago
The inability to retain urine in the bladder is called
tia_tia [17]
Hi this is called urinary incontinence.
Hope this helps.
6 0
3 years ago
Is it always the case that more people in a population will have the dominant
MrRissso [65]

Answer:

dxminxnt allele

Explanation:

if a hetzygous genotype, the dome allele will express the phenotype over the recess allele. therefore, it is the dome trait that'll be commonly expressed as it acts through hetzygous and homzygous genotypes while recess trait only shows up in homzygous genotype.

hope it helps :)

shortened and censored due the words being listed rude!

8 0
2 years ago
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