<span>A tiger looks so much different as an adult than it did as a single fertilized egg because it developed through different stages from being a zygote (fertilized egg), to becoming an embryo (where it experiences intense cellular changes), to becoming a fetus (where it gains a great measure of cell specialization, and develops distinct tissues and organ systems). After birth, the tiger still undergoes further growth and development into adulthood. This is largely regulated by the expression of different genes at different times and also by environmental factors.</span>
The molecule will enter the cell using a channel protein.
The best answer would be enzymes since they are protein molecules and help build it. Enzymes also take part in reaction.
Answer:
searching
Explanation:
is the best way to find and search for the fossil
