b
Explain why viruses are not considered to be living.
viruses are not considered to be living because they lack cells and cannot reproduce on their own. although viruses contain DNA, they do not have a cell membrane, cytoplasm, ribosomes, or other organelles. they also need to use the cells of living organisms in order to replicate.
Hydropower involves blocking rivers, which disrupts ecosystems.
Explanation:
Prolonged use of hydropower can disrupt the ecosystem since it involves the blocking of rivers. This is a long term impact hydropower generation.
- Hydropower is a renewable source of energy in which water is used to generated electricity.
- The water is sourced from large river bodies with a lot of kinetic energy in them.
- Huge volumes of water discharge is needed for this process.
- Therefore, water must be dammed for this purpose.
- Damming of water bodies affects the ecosystem.
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Non-renewable energy sources brainly.com/question/3386515
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The answer is 'Cambrian' explosion. This took place approximately 541 million years ago. 'Explosion' refers to the evolution of a large range of new major animal phyla. Scientists know this by the large number of diverse fossils from this period. Prior to this period, organisms were single-celled, but over the Cambrian Explosion, lasting about 80 million years, life forms diversified rapidly to resemble the life forms existing today.
<span>Polypeptide
</span><span>
When Polypeptides join together, they form protein. The term Polypeptide chain is used to define the combination of Polypeptides. They are joined together by the peptide bonds. These Polypeptides are chains of amino acids. When one or more Polypeptide chains joined together, that is the time when Protein was born. As we all know, protein is very essential to our body. Because protein helps our body to function well. Protein makes our cells function properly. Can you imagine our body without protein? Thanks to Polypeptides chains that are joined together to form Protein so our body can function well. </span>
Answer:
Sickle cell anemia is one of a group of disorders known as sickle cell disease.
Explanation:
