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vodomira [7]
3 years ago
12

Plsss helps plss Extra 20 points

Biology
1 answer:
JulijaS [17]3 years ago
5 0
A is the answer I’m sure because I just took the test
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Look at the population pyramid. What conclusion can you draw from it?
balu736 [363]

c. Birth rates are high      

Explanation:

A wide base in the population pyramid shows that there is a large population of young people with high fertility rate or birth rate and high death rate.

From the graph, it can also be concluded that narrow tip at the top shows that lesser older people are in the population.

This pyramid shown in the diagram is a triangular age pyramid. In this type of pyramid the pre-reproductive individuals are high   reproductive individual are moderate and non-reproducing individual is less. In such pyramid we find population grows.

Suppose in a family of ten 6 are pre-reproductive, 2 moderate reproductive and 2 post-reproductive. We will see the in the course of moderate and post-reproductive will die and those six of pre-reproducing age will increase the population.

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3 years ago
The producers had 6,000 kcal of energy , how much would be passed to the primary consumer?
morpeh [17]

Answer:

600 kcal

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In an ecosystem, energy is transferred from one organism in a trophic level to another organism in another trophic level. Organisms called PRODUCERS are capable of deriving energy from the sun. However, when fed upon by PRIMARY CONSUMERS, only about 10% of the energy is transferred to them because most of the energy (90%) is lost as heat.

Hence, in this case where the producers had 6,000 kcal of energy, 10% i.e. 10/100 of 6000 = 600 kcal of energy will be transferred to the primary consumers.

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3 years ago
Which of the following describes a properly controlled experiment?
finlep [7]
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