Answer:
Thanks for the points I really appreciate it.
Explanation:
Have a great day. :)
Answer:
b) It provides genetic variation in organisms due to crossing over
c) It provides a reduced number of chromosomes in gametes
Explanation:
These are the factors as to why meiosis is important.
<span>The urinary system is involved in regulating fluid levels and chemical content of the blood.
</span><span>The components of the urinary system are: kidneys, ureters, urinary bladder, and urethra.
</span><span>This system produces, stores, and eliminates urine. It eliminates wastes and regulates volume and chemical composition of blood and by doing so it helps to maintain the acid-base balance of body fluids.</span>
Answer:
If thick-shelled snails have thick-shelled offspring and thin-shelled snails have thin-shelled offspring then this is good evidence that shell thickness is heritable.
Explanation:
Inheritance is a natural mechanism by which genetic information contained in the DNA sequence is passed from parents to offspring. Moreover, heritability is a measure of the genetic influence on the variation in a particular phenotypic trait (e.g., height, eye color, etc.) between individuals in a population. The values of heritability for a particular phenotypic trait range from zero (when all variation in a population comes from environmental factors and therefore is not heritable) to one (when all variation in a population comes from genetic factors and therefore is heritable). For example, in this case, if parental snails always have offspring with the same phenotype for the trait ‘shell thickness’, it would indicate that the heritability for this trait is equal to one, thereby evidencing that all of the variability for the trait 'shell thickness' comes from genetic differences.
