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erma4kov [3.2K]
3 years ago
7

What happens when a cell needs energy?

Biology
1 answer:
guajiro [1.7K]3 years ago
4 0
When a cell needs energy it gets from the food that we eat and works like as usual.
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Some birds in a population have an allele for long beaks and others for short beaks. A drought has caused change in the ecosyste
valentina_108 [34]

<span>The birds with the longer beaks will be fittest in the environment post-drought because they will be able to gather resources (food) hence survive. This will enable these bords to reach reproductive again and pass down the genes. It is important to note that fitness in nature is determined by the capacity to reproduce.
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<span />

<span>Natural selection will change the allelic frequency such that the allele for long neck will be more in the population while that of short beaks will reduce. This is because short beaks trait will not be able to reach reproductive age (due to starvation) because of the incapacity to gather food <span>resource hence their genes will keep reducing in the subsequent generations. 
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<span>Natural selection is a natural selective force that acts on a population and results to variation (differential) in the survival of the individuals in the population due to variations in phenotypes in the population. The most successful traits (phenotype that is best suited for the environment) are able to reach reproductive age, find a mate and reproduce hence leave its genes in subsequent generations</span>




5 0
4 years ago
The vitreous humor is a clear, watery fluid that helps to maintain the intraocular pressure of the eye and provides nutrients fo
Arisa [49]

True, the vitreous humor is a clear, watery fluid that helps maintain the intraocular pressure of the eye and provides nutrients for the avascular lens and cornea.

Vitreous humor is also known as aqueous humor or vitreous liquid. The word vitreous means transparent, and humor means liquid. It is a clear jelly-like substance that fills the inside of the eyeball. As a person ages, the vitreous humor becomes more liquid. It plays an important role in providing metabolic nutrient requirements of the lens, coordinating eye growth and providing support to the retina.

The cornea helps our eyes to focus light so we can see clearly. It is the transparent and front part of the human eye that covers the iris, anterior chamber, and pupil, along with the anterior chamber and lens.

Learn more about vitreous humor here

brainly.com/question/15271360

#SPJ4

5 0
2 years ago
Muscles in animals are often found in pairs, because A muscles can produce a force as they relax B muscles can only pull C muscl
Elanso [62]
<span>B muscles can only pull 
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A type of a balanced stretch involves targeting a specific muscle group. When stretching, a person should be aware of the agonist and antagonist muscles being stretched in able to create a balance between the joints where the muscles are attached. Stretching is an important phase in the exercise cycle and should not be missed as this prevents injuries in the joints and increases the blood flow into the muscles that were used during the activity. Stretching also contributes to lessening the lactic acid build up that happens during physical activity.</span>
6 0
3 years ago
According to the map which animal would most likely avoid cold water​
almond37 [142]

Answer:

Manatee (A)

Explanation: Looking the graphic, Manatees live near the Equator, where is "hot" water place, and if you notice the other place are near cold water where none of them will avoid it.

4 0
3 years ago
What did Allan Savory notice about the lands grazed by wild animals at the Africa Centre for Holistic Management
Shkiper50 [21]

Answer:

Allan Savory noticed that grasslands co-evolved with large numbers of migrating ruminants, and therefore are co-dependent on each other's survival. These animals grouped together and constantly bunched due to the predator-prey connection, eat the grasses following the seasons throughout their migration in arid regions (Brittleness scale, of Non-Brittle to Brittle environments).

As they move, they drop nutrient-rich dung and urine, while trampling organic litter (live or dead grasses, leaves, etc) and seeds into the soil. These actions break down materials into the surface, providing more covered soil and keeping materials from chemically decomposing (oxidation, as opposed to the fast biological decomposition that occurs in areas with consistent rainfall(Non-Brittle)). The true testament to his insights of Holistic Management re: grasslands is known as the 4th Key Insight: That time, rather than numbers governs over-grazing or over-trampling.

The important component here is that the time exposed to these animals plays the significant role in whether you have healthy grasslands, not the number of animals exposed to the area of consideration. The amount of "rest" (time) for grasses between eating or trampling is just as crucial as the time in an exposure.

Explanation:

Explained in his book and courses under "Holistic Management", by Allan Savory and Jody Butterfield, and Sam Bingham

8 0
3 years ago
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