Correctly identify the following situation as an example of positive OR negative feed back. When blood pressure increases, signals are sent to the
brain from the blood vessels. Signals are sent to the heart from the brain,
and heart rate slows down, thus helping blood pressure to return to
normal. *

1.Positive Feedback
2.Negative Feedback

Negative Feedback

Explanation:

Positive feedback is only used to enhance the stimulus. In this case, the blood pressure was sent back to homeostatic levels which means that the stimulus was reversed in order to reach dynamic equilibrium.

correct answer: biotic and abiotic limitations

carrying capacity is defined as the total number of an organism who can be supported in a given area within the natural resources limit and without harming or degrading the natural, economic or the cultural environment present for the future generations.

carrying capacity is determined by the limiting factors, which are known to affect the natural resources available. it may include water, nutrients, minerals, space, light etc.

explanation:

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answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.