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Which ONE of the following hormones controls metabolic rate? A) Testosterone B) Thyroxine C) Growth hormone D) Insulin Which ONE of the following will occur in the human body on a cold day? A) Vasodilation in the skin B) Increase in the activity of sweat glands C) Decrease in evaporation of sweat from the surface of the skin D) Increase in blood flow to the surface of the skin The list below includes some of the factors that affect food security: (i) Use of pesticides (ii) Soil erosion (iii) Genetic modification (iv) Use of fertilizers Which ONE of the following combinations includes factors that increase food security? A) (i) and (ii) only B) (iii) and (iv) only C) (ii) and (iii) only D) (i) and (iv) only Which part of the neuron transmits impulses towards the cell body? A) Dendrite B) Myelin sheath C) Axon D) Synapse - NSC Life Sciences - Question 1 - 2019 - Paper 1

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Which-ONE-of-the-following-hormones-controls-metabolic-rate?--A)-Testosterone-B)-Thyroxine-C)-Growth-hormone-D)-Insulin--Which-ONE-of-the-following-will-occur-in-the-human-body-on-a-cold-day?--A)-Vasodilation-in-the-skin-B)-Increase-in-the-activity-of-sweat-glands-C)-Decrease-in-evaporation-of-sweat-from-the-surface-of-the-skin-D)-Increase-in-blood-flow-to-the-surface-of-the-skin--The-list-below-includes-some-of-the-factors-that-affect-food-security:-(i)-Use-of-pesticides-(ii)-Soil-erosion-(iii)-Genetic-modification-(iv)-Use-of-fertilizers--Which-ONE-of-the-following-combinations-includes-factors-that-increase-food-security?--A)-(i)-and-(ii)-only-B)-(iii)-and-(iv)-only-C)-(ii)-and-(iii)-only-D)-(i)-and-(iv)-only--Which-part-of-the-neuron-transmits-impulses-towards-the-cell-body?--A)-Dendrite-B)-Myelin-sheath-C)-Axon-D)-Synapse---NSC Life Sciences-Question 1-2019-Paper 1.png

Which ONE of the following hormones controls metabolic rate? A) Testosterone B) Thyroxine C) Growth hormone D) Insulin Which ONE of the following will occur in the... show full transcript

Worked Solution & Example Answer:Which ONE of the following hormones controls metabolic rate? A) Testosterone B) Thyroxine C) Growth hormone D) Insulin Which ONE of the following will occur in the human body on a cold day? A) Vasodilation in the skin B) Increase in the activity of sweat glands C) Decrease in evaporation of sweat from the surface of the skin D) Increase in blood flow to the surface of the skin The list below includes some of the factors that affect food security: (i) Use of pesticides (ii) Soil erosion (iii) Genetic modification (iv) Use of fertilizers Which ONE of the following combinations includes factors that increase food security? A) (i) and (ii) only B) (iii) and (iv) only C) (ii) and (iii) only D) (i) and (iv) only Which part of the neuron transmits impulses towards the cell body? A) Dendrite B) Myelin sheath C) Axon D) Synapse - NSC Life Sciences - Question 1 - 2019 - Paper 1

Step 1

Which ONE of the following hormones controls metabolic rate?

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Answer

The hormone that controls metabolic rate is B) Thyroxine. Thyroxine is produced by the thyroid gland and plays a critical role in regulating metabolism.

Step 2

Which ONE of the following will occur in the human body on a cold day?

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Answer

On a cold day, A) Vasodilation in the skin will not occur. Instead, the body experiences vasoconstriction to retain heat.

Step 3

Which ONE of the following combinations includes factors that increase food security?

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101 rated

Answer

The combination that includes factors that increase food security is D) (i) and (iv) only, as these factors promote agricultural productivity.

Step 4

Which part of the neuron transmits impulses towards the cell body?

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Answer

The part of the neuron that transmits impulses towards the cell body is A) Dendrite. Dendrites receive signals from other neurons.

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