#Question id: 3415
#Unit 11. Evolution and Behavior
Imagine a plant of extremely variable height that is pollinated by three different pollinators, one that was attracted to short plants, another that preferred plants of medium height and a third that visited only the tallest plants. If the pollinator that preferred plants of medium height disappeared from an area. What is concluding of this condition?
#Question id: 3627
#Unit 8. Inheritance Biology
A cross is made between two plants with white flowers. All the F1 progeny had red colored flower. This is because of
#Question id: 375
#Unit 1. Molecules and their Interaction Relevant to Biology
The aqueous solution with the lowest pH is:
#Question id: 5658
#Unit 5. Developmental Biology
Following events occur during fertilization in mammals.
A. sperm penetrates cumulus layer
B. sperm nucleus delivered into cytoplasm
C. sperm plasma membrane fuses with egg plasma membrane
D. calcium waves
E. enzymes released from acrosome on sperm head enable sperm to penetrate zona pellucida
F. transit through the cumulus or binding to zona pellucida elicits acrosomal reaction in sperm
G. egg completes meiosis and development is initiated
which of the following sequence is correct?
#Question id: 12312
#Unit 10. Ecological Principles