<span>An operon is an arrangement of genes consisting of an operator, a promoter, and a repressor.</span>
Answer:
8 chromosomes in its skincell
Explanation:
Sex organ is (n)
Other than sex organ is 2(n)
Answer:
C) It involves interactions between biotic and
abiotic factors.
Explanation:
Ecosystems need energy imput, need both consumers and producers, and can exist on land, lakes, rivers and oceans.
The correct answer is d. morula.
<span>
A morula is a stage in early development, formed 3–4 days after fertilization. It is a 16-cell mass which forms a solid ball contained within the zona pellucida. A morula develops into a blastocyst.</span>
How old is Darren? we need to know his age before we answer
