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qaws [65]
2 years ago
10

What is the double-walled sac that surrounds the heart called?.

Biology
1 answer:
Law Incorporation [45]2 years ago
8 0

Answer:

A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart's major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body.

Explanation:

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You are already familiar with the fact that different organisms often exhibit common adaptations that help them succeed in a giv
zavuch27 [327]

Answer:

*Sensory adaptation* is the common adaptation in all three sense. Sensory adaptation is the process in which changes in the sensitivity of sensory receptors occur in relation to the stimulus. All senses are believed to experience sensory adaptation.

Explanation:

This adaptation is shared as well as used differently as explained below.

1) Hearing+balance :In terms of hearing, our ears adapt to loud sound as it hits the small bones located in the inner ear. The loud sound leads the inner ear bone/s to contract. This contraction causes the reduction or delay of transmission of sound vibrations to the inner ear. Detection of the vibrations follows. However, this process of auditory adaptation usually does not work very well with loud sounds that are sudden or instantaneous. Examples of these sounds are gun shots or explosions

2)Smell :Low concentrations of several chemicals present in the air can be detected by the sensory receptors in the nose. These chemicals that we quickly detect include those in perfumes or air fresheners

3 0
3 years ago
Only 3% of the water on earth is fresh water, the kind we need for drinking and growing food. Of that 3% , how much is locked in
spin [16.1K]

about...69%

or more than two-thirds

4 0
2 years ago
What two measurements does a GPS device use to find a specific location? How many satellites does a
Anna [14]

Answer:

Four satellites are needed to find your location. GPS's get the signal from satellites and that can calculate the distance you are from those satellites and location. the satellites emit high frequency low power signals that your GPS can pick up.

Explanation:

4 0
3 years ago
A leaf in which small veins extend outward from a single main veins has what type of ventaion?
e-lub [12.9K]
Well...This might helps <span>Parallel venation is characteristic of monocots, the veins are usually parallel to each other along the length of the leaf. </span>
Pinnate venation is the veins are in a branching pattern, characterized by one major vein(called midrib) with smaller veins extending outward from it.
<span>Palmate venation is characterized by two or more major veins extending outward from one point like the fingers extending form the palm of a hand</span>
8 0
4 years ago
A material that undergoes tensional stress tends to ____.
mr Goodwill [35]
I believe the correct term to fill in the blank would be stretch. Any material that would experience some tensional stress would cause a change in the length of the material or it stretches. Hope this answers the question. Have a nice day.
7 0
3 years ago
Read 2 more answers
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