True. Coniferous trees keep their leaves.
A certain structure in a cell that serves a certain purpose or function.
Explanation:
DNA is the molecule that is the hereditary material in all living cells. Genes are made of DNA, and so is the genome itself. A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism's DNA.
Answer:
T3 (tri-iodothyronine) and T4 (thyroxine).
Explanation:
<u>Answer</u>: c. Natural gas.
<u>Explanation</u>:
- <em>Natural gas</em> is a fossil fuel and thus a<em> non-renewable resource.</em>
- Natural gas is widely used for the purpose of heating, cooking, and generation of electricity.
- The process of formation of natural gas takes place over millions of years from decomposing plant and animal material subjected to heat and pressure.
<em>Thus, natural gas cannot be used for the conservation of resources.</em>
