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Troyanec [42]
3 years ago
5

Ecotones are the ________. Ecotones are the ________. studies of specific biomes by ecologists transitional zones between ecosys

tems sounds that animal communities make in ecosystems areas between territories of organisms interactive behaviors leading to communication.
Biology
1 answer:
maxonik [38]3 years ago
7 0

Ecotones are the<u> transitional zones between two ecosystem.</u>

Explanation:

Ecotones is a narrow zone between two different ecosystem.

It may be defined as the transition zone between these two ecosystem. Ecotones are species rich and it's resources are used by inhabitants of both the ecosystem.

Ecotones are marked by sharp changes in vegetation and species population.

The ecotones arise due the drastic changes in the environmental condition of a place that creates a sharp boundary between it and adjacent area.

However, these changes blend somewhere in between these  area and results in formation of ecotones.

Example of ecotones can be the mangroves. These lie between marine ecosystem and terrestrial ecosystem.

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Option A. Increases and decreases of the heart rate result from changes in the activity of the <u>medulla oblongata</u>

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What is medulla oblongata ?

  • Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem.
  • The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
  • The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration
  • The medulla is divided into two main parts: the ventral medulla (the frontal portion) and the dorsal medulla (the rear portion; also known as the tegmentum).
  • The ventral medulla contains a pair of triangular structures called pyramids, within which lie the pyramidal tracts.
  • The pyramidal tracts are made up of the corticospinal tract (running from the cerebral cortex to the spinal cord) and the corticobulbar tract (running from the motor cortex of the frontal lobe to the cranial nerves in the brainstem)

To know more about medulla oblongata, refer:

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7 0
2 years ago
If a blue light shines on a green dress what colour would the dress be?​
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In this lab, you dissected a flower. The modified leaves that surround the reproductive parts are called ( ) . These structures
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Explanation:

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Phospholipids are a major component of cell membranes.  They a head and a tail. The head is hydrophilic  (attracted to water) and the tail is hydrophobic (repelled by water).

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