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ipn [44]
2 years ago
6

Which motion of particles across a membrane requires energy

Biology
2 answers:
ivanzaharov [21]2 years ago
7 0
A<span>ctive transport because passive transport does not as well as diffusion. 
</span>
mihalych1998 [28]2 years ago
5 0
If Your doing e2020 The answer is from low concentration to high concentration
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Please help not sure on this one thank you
Jobisdone [24]
C) be attracted to one another
3 0
2 years ago
Shrimp are primary consumers that feed on photosynthetic organisms. why would these organisms likely be found only in shallow oc
astra-53 [7]
Since shrimp pray on photosynthetic organisms, they are dependant on their prey's location.
The photosynthetic organisms need sunlight in order to produce energy, so they then to live in shallow waters, because the sunlight penetrates only a small upper layer of the water's surface.
So, shrimp live in shallow waters because their pray can only live there.
3 0
2 years ago
Read 2 more answers
A certain species of rabbit can have either black or grey fur. The allele for black fur is dominant over the allele for grey fur
lawyer [7]

The answer is; B

If we assume that the allele for black fur is B and that for white fur is b, crossing a homozygous black rabbit with a heterozygous black rabbit, will yield the following results (indicated in the punnet square below);

Genotypically, 50% of the population will be homozygous dominant, while 50% will be heterozygous. However, phenotypically, all offspring will bear black fur because the black fur allele is dominant over the grey allele.

6 0
2 years ago
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Characteristics of the early u.s. navy "super frigates" included ______________. select all that apply.
Stolb23 [73]

The original six frigates of the United States Navy<span> came up with the Naval Act of 1794. Two<span> characteristics are distinct of these said  early US. Navy "super frigates. They are: </span></span>

<span>·         </span><span>timbers put close together to be  able to withstand heavy cannon fire</span>

<span>·         </span><span>hull reinforced to resist the pressures of heavier ordnance on deck</span>

4 0
2 years ago
During exercise, sensory receptors detect changes in oxygen and carbon dioxide levels in the blood. This information is then sen
Sav [38]

A. Hormones act as signal molecules between all body systems

Peripheral Chemoreceptors (Carotid + Aortic Bodies) and Central Chemoreceptors in the Medulla Oblongata detect high Carbon Dioxide levels in the blood during exercise. The respiratory centre in the Medulla Oblongata + PONS stimulate the intercostal muscles and the diphragm to contract in order to increase the rate and depth of breathing as to decrease levels of Carbon dioxide in the blood.

The thyroid gland secretes thyroxine which speeds up metabolism (the rate at which cells use glucose)

6 0
2 years ago
Read 2 more answers
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