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stellarik [79]
3 years ago
5

SCIENCE HELP ASAP!!!

Biology
2 answers:
zavuch27 [327]3 years ago
8 0
1. <span>Chlorophyll converts sunlight to chemical energy during photosynthesis.
2. </span><span>Light energy is converted to chemical energy during photosynthesis.

I'm so sorry if I'm wrong I tried my best</span>
mixer [17]3 years ago
5 0

1. The right answer is C.

2. The right answer is A.

(Both answers has the same explanation, since it is approximately the same question).

Three forms of energy come into play in the functioning of an ecosystem:

* the electromagnetic radiation of short-wavelength  (light),

* the electromagnetic radiation of long-wavelength  (infrared: heat),

* chemical energy (in the form of organic molecules: sugars, etc.).

The conversion of light energy into chemical energy takes place in  plants: it's photosynthesis.

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When you dig a water well for a house, you must pay per meter. Based on this image, how deep would you have to drill to reach an
Lerok [7]

14 is my best guess

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3 years ago
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What structure regulates the amount of light passing to the visual receptors of the eye?
Vanyuwa [196]

Answer:

a. iris

Explanation:

iris is actually the structure of the eye that regulates the amount of light passing to the visual receptors of the eye

4 0
3 years ago
A train accelerates at a rate of 2.5 km/hr/sec. During the acceleration period, its velocity changes by 55 km/hr. How long did t
lina2011 [118]
A = (v2-v1) / t --> t = (v2-v1)/A
t = (55 km/hr)/(2.5 km/hr•sec)
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7 0
3 years ago
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g In the mid-1800s, overhunting of Northern Elephant Seals reduced their population size to fewer than 40 individuals. However,
Svet_ta [14]

Answer:

In the mid-1800s, over-hunting of Northern Elephant Seals reduced their population size to fewer than 40 individuals. However, the population has since rebounded to over 100,000 animals. The population went through a _<u>bottle neck event (genetic drift)</u>_, which makes it more susceptible to _<u>developing a genetic disease</u>_.

Explanation:

Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure-bottleneck effect- or because of a population split -founder effect- . The bottleneck effect most likely affects smaller populations.  

In the exposed example, extensive hunting acted as a pressure that reduced the number of Northern elephant seals to fewer than 100. This population experienced one or many generations of small size since these animals were affected by hunting. As the survivors did not have the whole genetic pool of the original population, the <em>population size might have recovered to a current population size of 100,000 individuals</em><em>,</em><em> but the genetic pool might have not</em><em>.</em> When the small population increases in size, it will have a genetically different composition from the original one. In these situations,<em> there is a reduced genetic variability, with a possibility of developing a peculiar allelic component</em>. If the <em>survivors in the population carried or developed a mutation, probably this mutation passed from generation to generation</em>. It will involve <em>more individuals each time and</em><em> increase the probability of developing a genetic disease.</em>

 

6 0
3 years ago
Garrod's information about the enzyme alteration resulting in alkaptonuria led to further understanding of these types of metabo
marshall27 [118]
The answer would be: It would have no effect, because tyrosine is also available from the diet

The pathway is different, alkaptonuria increased tyrosine is caused by decreased usage. In phenylketonuria, it is caused by increased production. While tyrosine is increased in phenylketonuria patient, it won't cause alkaptonuria because tyrosine could be found in the diet. 
7 0
3 years ago
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