Answer:
C. Large tree ferns grew well during the Paleozoic Era.
I would say Diandra, because she provides the most in depth description!
Answer:
Groups 4 to 7 are most likely to be undergoing the mitotic phase of the cell cycle.
Explanation:
Since the four proteins used p16, p18, p21, and p27 are inhibitors of cyclin-dependent kinases (CDK), their absence indicates that the cell is undergoing mitosis - the cell cycle is regulated by CDKs. In the absence of these inhibitors, the cell cycle moves on forward. Because the bar for DNA replication is longer in the case for groups 4 to 7, it is indicative of the fact that these cells have gone through the mitotic phase.
Hope that answers the question, have a great day!
Exoskeleton and Segmented Bodies and Jointed Appendages and Bilateral Symmetry and <span>Open Circulatory System</span>
<span>The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.</span>
