#Question id: 10539
#Unit 6. System Physiology – Plant
All plants releases green-leaf volatiles in response to mechanical damage, this volatile is a mixture of
#Question id: 27978
#Unit 1. Molecules and their Interaction Relevant to Biology
Alternative oxidase are characteristically found in plant responsible for the
#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: 5686
#Unit 5. Developmental Biology
Following statements are regarding to double fertilization in angiosperms.
A. One sperm cell fuses with the egg cell to produce the zygote that will develop into the new embryonic plant.
B. The second sperm cell fuses with the usually binucleate central cell, giving rise to the
endosperm, the tissue that nourishes the developing embryo. This second event is not “true” fertilization in the sense of male and female gametes undergoing fusion.
C. The second sperm cell fuses with the usually binucleate central cell, giving rise to the
endosperm, the tissue that nourishes the developing embryo. This second event is “true” fertilization in the sense of male and female gametes undergoing fusion.
D. During fertilization in angiosperm, when the sperm cells are released, the egg undergoes a flux of Ca2+. Then, chemicals released from the egg appear to make the sperm competent for cell fusion.
Which of the following statements are true?
#Question id: 30084
#Unit 2. Cellular Organization