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ehidna [41]
3 years ago
15

Why is so much energy "lost" between trophic levels?

Biology
1 answer:
BabaBlast [244]3 years ago
3 0

Answer:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat.

Explanation:

When the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.

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A red flower and a white flower produce link offspring. What condition explains this phenomenon?
Anika [276]

The condition which explains this phenomenon is called incomplete dominance.  Two different organisms (flowers) with two different phenotypes (red and white) will produce an offspring with a third phenotype.  In this case, the third phenotype is the pink color.  It is a blending of the parent traits.  

7 0
3 years ago
Four genes (A, B, C, D) are on the same chromosome in the sequence D, A, B, C. The distance between A and B is 4 map units, betw
sweet-ann [11.9K]

Answer:

7%.

Explanation:

The recombinant progeny might occur due to the exchange of genetic material between non sister chromatids known as crossing over during the meiosis.

The chromosome sequence is DABC. A and B distance is 4 map units,  B and C is 2 map units,  B and D is 5 map units. The distance between A and D is 1 map unit that can be calculated by subtracting the distance between BD and AB ( 5-4). The CD map distance can be calculated by adding the distance between AD, AB and BC ( 1 + 4+ 2). The recombination frequency is equal to distance between them is 7%.

Thus, the answer is 7%.

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3 years ago
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JulsSmile [24]
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Bioremediation is used to clean up oil spills or contaminated groundwater.22 Jun 2020
7 0
3 years ago
When the left ventricle contracts, blood flows to the?
Naddik [55]

Answer:

b) aorta

Explanation:

On contraction of the atrium, the atrioventricular valves open and push blood to their respective ventricles. Oxygenated blood from the left atrium moves to left ventricle. On contraction of ventricles, semilunar valves open and oxygenated blood from left ventricles is pushed into the aorta, a major artery which distributes blood to the body cells through different arteries.      

6 0
3 years ago
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The answer to your question is D, graph. 
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4 years ago
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