Mast cells
hope this helped
Answer:
oxygen is a diatomic molecule having two oxygen atoms whereas carbon dioxide is a triatomic molecule having one carbon atom and two oxygen atoms. that is the answer
Explanation:
Ok so theirs this thing called asking your teacher for help especially when it’s such an easy question
The double layered sac surrounding the heart is the pericardium
Answer:
The correct answer is ''post-zygotic barrier to reproduction''
Explanation:
Biological barriers prevent the exchange of genes between two or more populations, a postzygotic reproductive barrier reduces the survival or reproduction of hybrid offspring. In hybrid non-viability there is low survival of the hybrid, especially during embryonic stages. On the other hand, the sterility of the hybrid occurs when the fertilized egg develops into a healthy but sterile adult. Segregation of aneuploid gametes during meiosis, different gene associations occur on the chromosomes of the parents.