Answer:
20% cytosine
Explanation:
Their is 30% thymine and a total of 30% adenine, and there is 20% cytosine and 20% guanine.
Answer:
because 90% of energy is lost in the environment as heat.
Explanation:
According to the 10% rule, only 10% of energy is transferred from one trophic level to the next trophic level. It means that if the producers have 100% percent energy than only 10% of energy will be passed from producers to primary consumers.
So only a small amount of energy is transferred to the next trophic level because most of the energy is lost as heat during the oxidation of food. Therefore a very small amount of energy is transferred to the highest trophic level.
As less energy is available to support the organisms present on higher trophic level so their number is lower than the number of organisms present at lower trophic levels.
Well, a homologous structure is a bone or something else that is present in many different species that could point to a common ancestor. Since you do not have the examples in your question I will just give you some and hope that it helps you:
The arm of a human, the wing<span> of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale.
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I hope this helped! Let me know if it did not!
I hope you have a fantastical day!!XD
Answer:
Hello!!! Princess Sakura here ^^
Explanation:
The sun, earth, and moon are held together by gravity, and they interact in lots of ways. The moon orbits the earth because of the pull of the earth. The tides are another interaction in the sun, earth, and the moon system. The tides happen because the moon and sun pull on the oceans, causing them to rise and fall each day.
Answer:
75% red, 25% other color (brown?)
Explanation:
A cross between two heterozygous red eye flies (Rr x Rr)
R r
R <em>RR Rr</em>
r <em>R</em>r <em> rr</em>
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The possible genotypes are RR, Rr, and rr. There are two possibilities of Rr.
Since the heterozygotes have red eyes, the red eye allele must be dominant. Therefore, RR and Rr genotypes will all have red eyes. That means 3/4 (75%) of offspring will have red eyes. 1/4 25% are h0m0zygous recessive (rr), and will therefore have the other eye color (question doesn't mention which colour this is, it is likely brown)
