Answer:
The question lacks options, the options are:
a) varieties
b) phenotypes
c) genotypes
d) factors
e) alleles
The answer is B (phenotypes)
Explanation:
The phenotype of an organism refers to all observable traits it possesses. It refers to the physical characteristics of an organism as opposed to the content of its genes called genotype. Although, the traits an organism expresses is largely dependent on what is contained in its genome i.e. genotype determines phenotype.
Observable traits includes colour (yellow and green as mentioned in the question), height (tall or short), shape (round or wrinkled). An organism like plant will show or express a yellow colour (phenotype) when the yellow allele of the colour coding gene in its genetic makeup (genotype) is dominant.
Is it a true or false question?
Answer:
The functional unit of a muscle cell is known as a "sarcomere" which covers the distance between the two Z-lines.
The sarcomere consists of A-zone which contains both thick and thin filaments, H-zone which contains only thick filaments and I band which contains only thin filaments.
During muscle contraction, thick and thin myofibrils slide over each other due to which the distance between two z-line get reduced.
The H and I zone gets shortened but A zone does not shorten but come close to other A- bands and disappears.
I do not know maybe you will get shocked but I don’t know what I’m talking about
Answer:
Bioaccumulation occurs when toxins build up - or accumulate - in a food chain. The animals at the top of the food chain are affected most severely. Small amounts of toxic substances - often pesticides or pollution from human activity - are absorbed by plants.
