They will be genetically identical to the daughter cells.
<span>simple organic molecules can form spontaneously under conditions like those thought to prevail early in Earth's history</span>
D. TT x tt. When using a punnett square and substituting with the different genotypes, all of them will be Tt. And since T is the dominant trait, the offspring will be very tall.
Answer:
Option A, most closely related to mammals
Explanation:
Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.
All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other
Hence, option A is correct
