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#Question id: 3536
#8. Inheritance Biology
What is the probability that selfing an F1 plant from Mendel dihybrid cross ( RrYy X RrYy) will produce an offspring with an rrYY genotype?
TLS Online TPP Program
#Question id: 4956
#11. Evolution and Behavior
Which measurement would help determine absolute dates by radiometric means?
TLS Online TPP Program
#Question id: 16119
#7. System Physiology – Animal
Following statements are regarding to Shivering, which is the most potent mechanism for increasing heat production in the body.
A. Cold environmental temperatures activate centers in the posterior hypothalamus during shivering, which then activate the α and γ motoneurons innervating skeletal muscle.
B. Shivering involves skeletal muscle contracts rhythmically, generating heat and raising body temperature.
C. Shivering involves stimulation of Na+-K+ ATPase and raising body temperature.
D. Shivering involves stimulation of β receptors in brown fat, which increases metabolic rate and heat production.
Which of the following combination is correct?
TLS Online TPP Program
#Question id: 11277
#10. Ecological Principles
If a species is a keystone predator, then its removal from a community should
(A) Increase population size of the predator’s preferred prey
(B) decrease species diversity in the prey community
(C) decrease productivity of the predator’s preferred prey
(D) increase species diversity in the prey community
TLS Online TPP Program
#Question id: 21241
#7. System Physiology – Animal
A 45-year-old female who had never needed to wear glasses experienced difficulty reading a menu in a dimly-lit restaurant. She then recalled that as of late she needed to have the newspaper closer to her eyes in order to read it. A friend recommended she purchase reading glasses. Visual accommodation involves