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guajiro [1.7K]
3 years ago
12

Scientist believe that the first life form appeared over how many years ago

Biology
1 answer:
mylen [45]3 years ago
5 0
3.7 Billion years ago.
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Describe why the amount of light available to the Chlorella culture might affect the growth dynamics of the alga.
-Dominant- [34]

Answer:

See the answer below

Explanation:

The amount of light available to Chlorella culture might affect the growth dynamics of the alga <u>because the light is an important factor necessary for the synthesis of carbohydrates and other important molecules in the body of the organism.</u>

The process of synthesizing carbohydrates is termed photosynthesis and during this process, the energy of light is used to excite the photosystem of the chlorophyll of the organism, leading to the release of electrons whose energy is used to synthesize an energy molecule that is utilized in the latter part of the photosynthetic process. The entire process of photosynthesis can be summarised as an equation below:

            6CO_2 + 6H_2O + light --> C_6H_1_2O_6 + 6O_2

<em>The manufactured carbohydrates act as food for the organism and are broken down during respiration to release energy necessary to drive metabolic processes that bring about growth and development.</em>

Hence, the amount of light is an important factor that might affect the growth dynamics of all green plants, including the Chlorella.  

5 0
3 years ago
A scientist constructs a graph to show the age structure that f the human population of county
DedPeter [7]

Based on the graph, it can be concluded that the population is increasing rapidly because of the youth of the population.

<h3>What is population?</h3>

The population of a species is the number of organisms of the same species found within a given habitat.

Population graphs are used to describe the trend in the population of a given species of organisms.

The factors that affects population growth of a country include:

  • fertility rates,
  • mortality rates or life expectancy,
  • the initial age profile of the population, and
  • migration

Given the population graph of the country, the conclusion can be drawn is that the population is increasing rapidly because of the youth of the population.

In conclusion, the higher the fertility rate the faster the population growth.

Learn more about population growth at: brainly.com/question/1437549

#SPJ1

Note that the complete question is given below:

A scientist constructs a graph to show the age structure of the human population of Country Y. The graph is shown here. What conclusion is supported by the graph?

The population is increasing rapidly because of the youth of the population.

4 0
2 years ago
1.
Elan Coil [88]
1) full, 2) new, 3) gibbous
7 0
3 years ago
Read 2 more answers
What Is true of all eukaryotes?
vredina [299]

Answer:

The answer is C. Their cells have nuclei.

6 0
3 years ago
Read 2 more answers
Which part of the gi tract does not actively participate in the digestion of carbohydrates?
Anna11 [10]

<u>Stomach</u> is the part of the GI tract does not actively participate in the digestion of carbohydrates.

Carbohydrates are first mechanically and chemically broken down in the mouth. Mastication, another term for chewing, breaks down the meals high in carbohydrates into ever-tinier bits. Saliva that covers the food particles is produced by salivary glands in the mouth cavity. Salivary amylase is an enzyme found in saliva.

Dietary carbohydrates are converted to glucose, fructose, and/or galactose in the small intestine and then absorbed into the blood. The breakdown and absorption of dietary carbohydrates can be influenced by a variety of factors.

The given question is incomplete, find below the complete question,

Q. Which part of the GI tract does NOT actively digest carbohydrates?

a)small intestine

b)stomach

c)pancreas

To know more about the Carbohydrate Digestion, click on the below link,

brainly.com/question/13232860

#SPJ1

8 0
1 year ago
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