The greenhouse effect is a naturally occurring process that aids in heating the Earth's surface and atmosphere. It results from the fact that certain atmospheric gases, such as carbon dioxide, water vapor, and methane, are able to change the energy balance of the planet by absorbing longwave radiation emitted from the Earth's surface. Without the greenhouse effect life on this planet would probably not exist as the average temperature of the Earth would be a chilly -18° Celsius, rather than the present 15° Celsius.
The main purpose of the organ system shown in the provided diagram is that it <span>provides support for the body and protects delicate internal organs.</span>
Answer:
its the first one dna replication !!
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination.
A polygenic trait can have many possible genotypes, producing many possible phenotypes
Explanation:
The polygenic trait is influenced by more than one gene leading to the possibility of many genotypes and phenotypes. This trait itself is a characteristic or a phenotype which is controlled or influenced by multiple genes.
The phenotypes are produced with addition of each dominant allele. Phenotypes like height, skin color of a person are controlled by many genes and the dominant alleles finally produce the respective phenotype.
These does not follow Mendel’s rule of inheritance, where one phenotype is controlled by one genotype.
