Only the strongest live on to pass on their genes. the weak die
Pattern formation in plant embryos involves several morphogenetic steps, during which cell type specification, asymmetric cell division, and cell–cell communication play critical roles.
Answer:
D
Explanation:
because it shows the features of a bird
Answer:
gases of nitrogen and many more
Answer:
Pacemaker cells are located in the <u>sinoatrial node.</u>
Contractile cells are located in the <u>Heart</u>
Explanation:
