Stomata generally close in response to ____
a. the release of abscisic acid by the roots
b. a drop in CO2 concentration in leaf air spaces
c. exposure to red light
d. a drop in O2 concentration in leaf air spaces
e. an increase in CO2 concentration in the leaf air spaces
ANSWER: a
You might also like to view...
During the follicular phase of the menstrual cycle, a number of events occur which are listed below. Select the answer that places the events in the correct chronological order
Events: 1. the lining of the uterus thickens 2. granulosa cells secrete estradiol 3. FSH acts on granulosa cells 4. LH levels surge rapidly then decline 5. ovulation occurs A. 3, 2, 1, 4, 5 B. 3, 1, 2, 4, 5 C. 1, 2, 3, 4, 5 D. 2, 4, 3, 1, 5 E. 4, 3, 2, 1, 5
Llamas, which are customarily known as mountain dwellers, have hemoglobin with higher O2 binding
affinity than that of humans. That being said, how would you predict the llama hemoglobin-O2 dissociation curve would differ compared to that of a human (see diagram below)? ©2014 Brooks/Cole, Cengage Learning
What will be an ideal response?The European cuckoo's behavior as a "brood parasite" represents what type of behavior?
A. A response that is not a behavior B. Instinctive behavior C. Imprinting behavior D. Learned behavior E. A time-dependent form of learning
The (peroxide/superoxide/hydroxyl) radical is formed during the incomplete reduction of O2 during electron transport in aerobes
What will be an ideal response?