Answer:
The "Cambrian Explosion" refers to the sudden appearance in the fossil record of complex animals with mineralized skeletal remains. It may represent the most important evolutionary event in the history of life on Earth.
Explanation:
If we talk about guinea pigs, the trait of hair length is controlled by a gene with two alleles.
Allele for short hair (S) is dominant on the allele for the long hair (s).
The texture of hair texture is controlled by a gene with two alleles. It can be rough or smooth, and the allele for rough hair (R) is dominant on allele for smooth hair (r).
Now coming towards the question:
- A female guinea pig is heterozygous for hair texture and homozygous recessive for hair length.
Phenotype of the female will be Rough and long hair.
- A male guinea pig is homozygous dominant for hair texture and hair length.
Phenotype of the male will be Rough and short hair.
Hope it help!
Answer:
B
Explanation:
Birds and flowers have different arrangements of the bases.
Nucleotides are termed as organic molecules which serve as monomer units. Their work is to form nucleic acid polymers, for example, ribonucleic acid and deoxyribonucleic acid.
They serve as biomolecules in the life-forms on earth. Nucleotides work as building blocks of nucleic acid. They are composed of the phosphate group, five-carbon sugar, and nitrogenous base.
Natural gas is a fossil fuel used as a source of energy for heating, cooking, and electricity<span> generation. It is also used as fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.</span>
