Which statement about ecosystems is true

Biology

1 answer:

Bingel [31]3 years ago

3 0

The correct answer is D. Ecosystems are always smaller than a biome.

Explanation

A biome is a set of abiotic factors that form a territory in which different organisms inhabit. In addition, biomes encompass a set of ecosystems such as tundra, rainforest, savannas, wetlands, among others. On the other hand, an ecosystem is a community of organisms that interact with other organisms and abiotic factors. According to the above, the correct answer is D. Ecosystems are always smaller than a biome becaause biomes includes ecosystems with similar features.

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The hyperalgesia that is common in phantom limb pain could potentially be blocked if a new drug was developed that could prevent

gregori [183]

Answer: The answer is B- Diffusion of calcium ions through NMDA receptors.

Explanation:

Phantom limb pain (PLP) is a painful sensation experienced after the loss or amputation of a limb. The limb is no longer there but the individual can still feel real and severe pains in the limb. This occurs soon after surgery.

NMDA is a receptor for Glutamate which is an excitatory neurotransmitter. The activation of NMDA receptors are associated with hyperalgesia which is an abnormally heightened sensitivity to pain.

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3 years ago

Eral

EleoNora [17]

Complete question: The chart shows the movement of a ball after several seconds.

Column A is on the x-axis, and Column B is on the y-axis. Which titles should replace A and B?

a. Column A should be “Time,” and Column B should be “Position.”

b. Column A should be “Position,” and Column B should be “Time.”

c. Column A should be “Velocity,” and Column B should be “Speed.”

d. Column A should be “Speed,” and Column B should be “Velocity.”

Answer:

Column A should be "Time," and Column B should be "Position"

Explanation:

In general, the first column always refers to the x-axis, this is the independent variables. While the second column refers to the y-axis, the dependent variables.

Option A) names Time and Position to the columns. This seems to be correct as time is an independent variable, while the ball position depends on time. The x-axes is named "time", and the Y-axes is named "ball position".

Option B) is not possible because the Position is not the independent variable, and time is not the dependent variable.

Option C) and D) are not possible, as both of them are variables that depend on time.