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Andrej [43]
3 years ago
8

These are evolutionary changes within a species or small group of organisms, especially over a short period of time.

Biology
1 answer:
Dafna11 [192]3 years ago
7 0

Answer:

<em>Microevolution</em>

Explanation:

In ecological studies, microevolution can be described as the changes which arise in the allele frequencies of a population over a short period of time. These changes arise due to conditions such as a mutation which might be beneficial, genetic drift, genetic flow etc. Microevolution is caused when allele for certain traits are more favoured by the changing environment.

For example, the allele frequencies of a population might change after they become pest resistant.

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Explain how energy from the sun can eventually be used for active transport in the alimentary canal
a_sh-v [17]

Answer:

The chemical energy is locked up as carbohydrate in the green plants. ... The locked-up energy - usually in the form of ATP - becomes available to be used for various metabolic processes in the body, including active transport in the alimentary canal.

Explanation:

Which energy is use is to active transprt

ATP energy

Hope it help!!

8 0
3 years ago
5. In four o'clock, red color exhibits incomplete dominance over white; when both exist together, the flowers are pink. i. In a
Anvisha [2.4K]

Answer:

The genotype of the offspring would be heterogeneous.

Explanation:

In four O'clock plants in case of incomplete dominance,  no colour is dominant. They are existing in an intermediate character / a new character. This new colour is pink, not white or red.

The white and red colour flowers are wild type and homogenous type. When the cross occurs and incomplete dominance happen, the F1 flower would be pink one but heterogeneous.

Because according to Mendel's deviation, there are such character appears where neither dominant nor the recessive are the only expressive traits. This has seen in incomplete dominance.

In codominance, which is the another Mendelian deviation, where both the characters has expressed. For example the rose flower having both red and white dots in it. The expression two colours / dominant and recessive characters in the flower is called codominance. Because both expresses at the same time. This codominance genotype is also heterogeneous.

6 0
3 years ago
when studying the earth, scientists usually consider it a closed system. How should that affect human decisions about managing r
Zarrin [17]

Answer:

In thermodynamics, a closed system can be described as a system which can exchange energy from outside but matter cannot be transferred from such a system. This means that the resources present on the Earth cannot be transferred or replaced and the waste can also not be removed. By understanding the concept of the closed system, humans should recognize the fact that many resources such as minerals present on the Earth cannot be replaced and hence, resources should be utilized effectively in a conserved manner. Also, as waste cannot be removed hence humans should stop forming such waste products which cannot be removed or recycled.

4 0
3 years ago
How do scientists think protobionts formed?
PSYCHO15rus [73]

Answer:

c

Explanation:

The very primitive and early microorganisms on the earth's surface were protobionts. Protobionts are cell-like microscopic structures, and they are made up of organic and inorganic molecules present in a lipid bilayer membrane. The layers of the lipid membranes were folded into bilayers and transformed into a bubble shape when placed in water. These membranes were selectively permeable and also observed shrinkage and swelling in osmotic conditions. Protobionts also possess the characteristics of reproduction.

(please vote me brainliest)

4 0
2 years ago
Which is an example of a beneficial mutation?
lora16 [44]

Answer: Examples of beneficial mutations are HIV resistance, lactose tolerance, and trichromatic vision.

7 0
2 years ago
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