Answer:
The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance linked to acid rain.
Explanation:
Answer:
b. Lizard and salamander
Explanation:
Both Lizard and salamander are closely related species because of their body structure and appearance. Both Lizard and salamander have similar shape and structure but belongs to different group. Lizard belongs to reptiles whereas salamander belongs to amphibian family. Both Lizard and salamander are vertebrates, cold blooded animals, carnivorous, has a tail and four legs. So we can conclude that both Lizard and salamander are closely related to each other.
Answer:
Mutations
Explanation:
<em>Mutations</em> are the main causes of diversity among organisms as they cause changes in the genetic sequence of organisms. Mutations typically refer to changes in nucleic acids. Changes caused by mutation could take different forms. Some mutations are substitutions in a single nucleotide. some are deletions, some insertions. Mutations can also occur in either somatic (body) cells or in germ cells.
When a mutation occurs in the somatic cell, the mutation affects just the single organism carrying the mutation. However, when the mutation is present in germ cells, the mutation can be passed down to offspring. The implication of germ cell mutations is that, the mutation spreads across a population of the species.
Mutations could cause the substitution of amino acid sequences, cause the premature termination of protein synthesis or could even have no obvious effect, depending on the type of mutation that occurs. Some mutations are harmless, while others are harmful. The higher the number of mutations, the higher the chances of the mutation being harmful to the organism.
Answer:
depends on the mature trees, mosses, and lichen of the boreal biome.
Explanation:
