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hammer [34]
3 years ago
10

I don’t get it and I need help and answers please thank you

Biology
1 answer:
mrs_skeptik [129]3 years ago
8 0
4. The purpose of having a light source on a microscope is to allow better viewing.
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Determine which of the following statements is true about energy in ecosystems. A. Producers only absorb 40% of the sun’s energy
Aleks04 [339]

The true statement for the energy in ecosystems is "Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis". The correct option is A.

<h3>What is ecosystem?</h3>

An ecosystem is a geographical area in which plants, animals, and other organisms, as well as weather and landscape, coexist to form a life bubble.

Ecosystems contain both biotic and abiotic components. Plants, animals, and other organisms are examples of biotic factors.

Energy must be transmitted throughout an ecosystem. The sun is the ultimate source of energy in an ecosystem.

Plants and marine ecosystems make up the majority of the terrestrial ecosystem.

Thus, the correct option is A.

For more details regarding ecosystem, visit:

brainly.com/question/13979184

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7 0
1 year ago
Chomosomes are duplicated during
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Chomosomes are duplicated during <em><u>interphase</u></em>

Brainliest?

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What is the type of allele that only affects the phenotype in the homozygous condition?
sergeinik [125]
I thinking the answer was for some genes, both alleles express together. Others combine to give an average phenotype....
3 0
3 years ago
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is p
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C. A pie chart

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The plasma membrane represents an energetic barrier to the free diffusion of ions from the extracellular space into the cytoplas
Marysya12 [62]

Answer:

Why are molecules such as valinomycin effective at transporting ions across the membrane?

Valinomycin is effective as transporting ions across the membrane because it is no charged, so it can carry ions.

Why would a drop in temperature to or below the transition temperature limit valinomycin mediated K+ transport across the plasma membrane?

Valinomycin is limited by temperature because its activity is highly sensitive and it depends on a stable and an average temperature.

Explanation:

Valinomycin is effective at transporting ion across the membrane because is an antibiotic that alternates hydroxy and amino acid, ans it helps membranes to be permeable. Valinomycin is a cyclic molecule that helps in ions transportation through membranes. Also, antibiotics have a temperature range of activity, that's why it is sensitive to changes.

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