Answer:
B. Second
Explanation:
In the second trimester the bony parts of the skeleton begin to form
.
Answer:D
Explanation:
Both parent are Heterozygous for the sickle cell allele.
Both parent have sickle cell trait in which the both posses one abnormal allele of the hemoglobin beta gene (AS heterozygous genotype)
When two AS parents mate, probability of giving birth to a sickle cell anemia child is 1/4
AS + AS= AA, AS, AS, SS
The scientific study of the biological aspects of social behavior in animals or humans! Hope this helped.
Answer:
it happens when 2 organisms jelp each other beneficial.
Explanation:
eg:algae and leguminous plants.the algae live on the roots and take in the nitrogen from the soil,which the plant cannot do and needs for growth.it takes in the nitrogen and pases it to the roots and even make the soil loose for the roots to move and they get a living space(algae on the roots).
Answer:
<h2>Hyphae are thread like structure.....</h2>
<h2>hope it's helpful.!</h2><h2>pls mark me in brainlist</h2>
