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andre [41]
3 years ago
6

How do scientists monitor populations for signs of pollution and why is this important?

Biology
1 answer:
Aleksandr [31]3 years ago
6 0

Answer:they monitor it through a modern system machine, it's important because we need to know the population we have.

Explanation: which means are we increasing it reducing in our population

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GIVING BRAINLIEST!!!
astra-53 [7]

Answer: C

Explanation: The process that occurred in the lake is natural selection. In the presence of an external environmental influence such as pollution, only the trouts that were fit to survive or in other words those that have the alleles that help in adapting to the new conditions live and increased in numbers. In such a case, one can say the fittest of the organisms survived and the corresponding allelic frequency in that population increased over time. The organisms carrying the other alleles died due to pollution and hence the overall frequency of alleles change.

5 0
3 years ago
How does a seed grow into a tree​
Leto [7]

Answer:

With the right environment (water, soil, temperature, sunlight), the plant will come from it's shell and begin to grow. As the plant begins to strengthen and grow, it will no longer need the nutrients that the seed provides as it will get it from the soil and grow into the plant it is supposed to

3 0
3 years ago
How does fertilizer usage, soil degradation, and deforestation all tie in together?
Tamiku [17]

Answer:

<u>Fertilizer usage is linked to the agricultural practice</u> with an aim to <u>enhance the crop yield</u>. Inadequae use of fertilizers however causes soil degradation because <u>these practices overlook the spatial differences in soil fertility status </u>in agricultrual systems. Specifically,<u> not all soils require fertilizer application at the same levels</u>. A recommended approach is that, initially, there should be a proper study of limited nutrients in the soil and thereon only those nutrients should be given at controlled concentrations, which are limited. A major reason is that <u>high concentration of specific nutrients would affect the bioavailability of other nutrients</u> in the long run and could also lead to soil degradation (by affecting soil health status). <u>The microbial population in the soil could also change</u> that are typical for essential biogeochemical cycles. This is a very critical aspect in future future agriculture and to preserve the environment. <u>Deforestation</u> is a condition when the plants are cut excessively for agricultural purposes. <u>If soil degradation continues as discussed above, it would put a reduce the overall proportion of agricultrual land and cutting of naturally grown forests would be required. This would turn the green zones into agricultural zones (in future)</u>. This is a pressure on ecosystem and the consequences can be really harsh.

6 0
3 years ago
A certain machine can output 50 Joules (J) of energy when 100 J of energy are input. If the amount of friction experienced by th
Dmitriy789 [7]

Explanation:

D) 75 J

Energy is neither related nor destroyed- it's simply converted to different forms. Forces are vectors with both mass and acceleration; they are interactions that have the ability to change an object's motion. As objects move, their potential energy (apprx 100 J) is converted to kinetic energy. However, friction a resistive force, which is formed from the conversion of an object's kinetic energy into heat energy, as two surfaces move along each other.

With the reduction of friction, the energy output should increase, as less energy is lost as heat. Thus, the output should be 75 J.

Learn more about energy flow at brainly.com/question/6966886

#LearnWithBrainly

4 0
3 years ago
Can someone help me with this one please
marusya05 [52]
I think its a thanks for askin
3 0
3 years ago
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