#Question id: 31305
#Unit 7. System Physiology – Animal
What is the membrane potential (threshold level) at which the S-A node discharges?
#Question id: 31117
#Unit 2. Cellular Organization
#Question id: 10909
#Unit 6. System Physiology – Plant
The energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called
#Question id: 5002
#Unit 11. Evolution and Behavior
All animals with eyes or eyespots that have been studied so far share a gene in common. When mutated, the gene Pax-6 causes lack of eyes in fruit flies, tiny eyes in mice, and missing irises (and other eye parts) in humans. The sequence of Pax-6 in humans and mice is identical. There are so few sequence differences with fruit fly Pax-6 that the human/mouse version can cause eye formation in eyeless fruit flies, even though vertebrates and invertebrates last shared a common ancestor more than 500 million years ago.
The appearance of Pax-6 in all animals with eyes can be explained in multiple ways. Based on the information above, which explanation is most likely?
#Question id: 10638
#Unit 10. Ecological Principles
Following some statement is given
A- Mortality rate constant over age group
B- Greater proportional survival at older age
C. Follow type III survivorship curve
D. Follow type II survivorship curve
Which of the following above statement is correct?