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.
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When the organic matter in soil decomposes, it creates a layer called topsoil.
An approach that uses passive solar heating instead of electricity for businesses and homes is known as A. Daylighting.
<h3>What is daylighting?</h3>
This is the illumination of buildings with natural light through the practice of placing reflective surfaces so that sunlight can provide effective internal lighting.
Solar heating is the use of sunlight to heat water or air in the buildings using radiant light and heat which is harnessed using a range of technology such as solar power to generate electricity.
Hence, we can see that neither weatherizing, green roofing nor cool roofing is the answer because they do not deal with providing passive solar heating, but daylighting uses passive solar heating.
Therefore, the correct answer is option A.
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MRNA, is used to transcript DNA codes from DNA molecules and then later exits the nucleus via nuclear pore, then moves to the ribosome. Then, tRNA is activated to bring specific amino acid to the ribosome for translation. Ribosome, which is the site of synthesis of proteins, is composed of rRNA and ribosomal proteins.
A codon is a three-base sequence (three nitrogen bases in a row) on mRNA. An anticodon is a three-base sequence on tRNA. It matches the codon.
The correct answer is A. Apoptosis is regulated cell death/suicide, not accidental.
