Answer:
number B i think
Explanation:
The competitive exclusion principle tells us that two species can't have exactly the same niche in a habitat and stably coexist. That's because species with identical niches also have identical needs, which means they would compete for precisely the same resources
Answer:
Petal color in snapdragon is an example of incomplete dominance and deviates from Mendel's law of dominance.
Skin color in humans exhibits a continuous variation and is regulated by more than one genetic loci.
Explanation:
Two alleles of a gene do not always exhibit the dominant-recessive inheritance as shown by Mendel. The alleles controlling the petal color in Snapdragon exhibit incomplete dominance since the allele "R" is not able to produce enough pigment in heterozygous condition to completely mask the effect of the recessive allele "r" Therefore, the heterozygous genotype "Rr" gives pink color to petals.
Mendel showed that each genetic trait is regulated by one gene and exhibit discontinuous variations. This is not followed by skin color in humans which is a polygenic trait with multiple genes regulating it. Here, a range of phenotype is present which is regulated by the sum total of the dominant alleles of all the genes involved controlling the melanin production.
Plant are recyclers, they recycle everything present in air. If there is a reduction in plants on earth, there will be harmful gases accumulated all around us. Our atmosphere will be accumulated with hazardous gases releases from automobiles, factories, and chimney. The carbon dioxide will accumulate in air and the oxygen will be depleted with time and eventually survival on earth would not be possible.
Moro ever, Lives of animals and birds would be affected badly if there well less plants on earth because plants are their main food source and habitat.
Answer:
Independent assortment.
Explanation:
Law of independent assortment is one of the laws that Mendel proposed in genetics. This law states that the alleles of two or more different genes get sorted into gametes independent of each other i.e. the alleles of two different genes do not influence each other at the time of gametogenesis.
For example, in this question when parents having allelic combinations AaBb and aabb are crossed they produced offsprings with allelic combinations AaBb, Aabb, aaBb and aabb. It simply indicates that the alleles of traits controlled by alleles Aa & Bb are sorting into any of the 4 gametes which are being produced. If they were not assorting independently then gametes with Aabb and aaBb combinations which are different than parents would not have produced.
