The answer to this problem is crayfish
The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core.
Answer:
The answer is Similarity
Explanation:
The distinct features of the two groups of birds i.e brown cardinals and bright red cardinals illustrates the principle of similarity. The principle of similarity states that things that share visual features such as shape, size, color, texture, value or orientation will be seen as belonging together or being in a unified group
The answer is B) Chromosomes
Answer:
Pleiotropy
Explanation:
<em>Pleiotropy is a genetic term used to describe a phenomenon in which multiple traits or phenotypic expressions are dictated by a single gene. </em>
<em>Pleiotropy </em>was first discovered by Mendel during his experiment with pea plant when he noticed that flower colour is always related to the leaf axil as well as seed coat colour.
There are different types of pleiotropy including:
- Gene pleiotropy
- Developmental pleiotropy
- Antagonistic pleiotropy
- Selectional pleiotropy
In the case of marfan syndrome, inheritance of a single allele results in tall and long limb, cardiovascular and eye defects. This thus means that that single allele which represents a gene is responsible for expression of those traits. A clear cut case of pleiotropy.