PLEASEEE HELP!!!! NEED ANSWERS FOR 1-4 1. Since Homo sopienz first appeared, its
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Question
PLEASEEE HELP!!!! NEED ANSWERS FOR 1-4 1. Since Homo sopienz first appeared, its brain size appoars to have a. increased rapidly. b. increased primarily in the neocortex. c. declined in the olfactory bulbs. d. reached a plateau 2. Which of the following can be explained by the mechanism of sexual selection in birds? a. Brighter coloring in males than in females of a species b. High complexity of mating songs in males of sonee bird species c. Greater size of males than females in many species d. All of the above 3. Depriving a monkey of vision in one eye carly in life results in a the absence of neural activity in brain cells on the same side. b the absence of responses elicited by the deprived eye c profound ocular dominance. d minimal long-lasting changes. 4 Cognitive impairment in Alzheimer's patients is most closely correlated with a, clumps of dead neurons in the brains of Alzheimer's patients. b, senile plaques in the brains of Alzheimer's patients C, abnormal tangles including tau protein d. patches of degrading axons.
Explanation / Answer
1. B. Research shows that there is an increase in the neocortex of the current homosapiens compared to the preceding generations.
2. D. All of the above traits show a possibility of natural selection of these traits in the Male birds in order to ensure survival of their genes by ensuring their selection as possible mates by the females of their species.
3. B.Depriving visual stimulation to one eye at an early life woul result in lack of visual response from the deprived eye as it would lead to gradual atrophy of the visual receptors of that eye.
4.D. Cognitive impairments in Alzheimer’s disease is related to the loss of atonal connections between the neurons of the brain.
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