The answer is a half-filled circle.
In the pedigree charts, squares present males and circles present females. If a female is healthy, the circle is empty (white). If a female is affected with a trait, the circle is filled-in (usually black). However, if a female is a carrier of a disease, which means that one allele is dominant and one is recessive, then the circle is half-filled.
Answer:
B - It hits an object
Explanation:
Once light has been produced, it will keep travelling in a straight line until it hits something else.
They can explodeand kill the cell, thats why they are nicknamed "suicide bags"
They both have 3 coelom usually develop larval forms known as trochophores<span />
