Answer:
e. natural selection
Explanation:
The theory of natural selection was coined by Charles Darwin. It is based on the fitness of certain phenotypes to survive changing environments. The difference in phenotypes arises from mutations in the genome due to pressure from the environment [can refer to the cell, interacting cells, population or ecosystem]. These mutations are heritable and become phenotype traits that are common in a surviving population.
The right atrium receives all of the systemic venous return Beneath the diaphragm, systemic venous flow enters the inferior vena cava, that is, blood from the abdominal and pelvic regions and the lower limbs.
Viruses that only use bacterial cells as host are identified as bacteriophages.
Answer:
No.
Explanation:
Pink flower colour in snapdragon is as a result of incomplete dominance. The pink flower colour has no allele in nature. Instead, the pink colour results from incomplete dominance of the allele that codes for red flower colour over the allele that codes for the white flower colour.
Assuming that the allele for red flower colour in the plant is R and the allele for white flower colour is r, true breeding red and white flower colour plants will have the genotype RR and rr respectively. In heterozygote state (Rr), the phenotype is usually pink, showing that the R allele has incomplete dominance over the r allele.
<em>Hence, there is no way for plant breeders to develop a true-breeding pink-flowered snapdragon. without some genetic manipulations/mutation.</em>
Data is any observations including calculations of mass or temperature made during an experiment
