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Nonamiya [84]
3 years ago
8

What is a semi permuable membrane

Biology
1 answer:
Katen [24]3 years ago
6 0
A semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion—or occasionally by more specialized processes of facilitated diffusion, passive transport or active transport.

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tall pea plants are dominant to short pea plants. A tall pea plants (TT) is crossed with a short pea plant(tt).
Lina20 [59]

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The offspring will be tall because itll have the dominant gene (Tt)

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3 years ago
Collect sunlight for photosynthesis
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phloem,xylem,and leaf

Explanation:

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3 years ago
The stethoscope is a device commonly used by doctors to monitor heart function. When listening to a heart beating using a stetho
Effectus [21]

Answer:

The correct answers are:

1. closing

2. the ventricles and arteries,

3. a constricted trachea

Lub is the first sound of a heartbeat and is mentioned as S1. It is usually produced due to the closing of tricuspid and and mitral or bicuspid valves present between atria and ventricles.

Tricupsid is located between atrium and ventricle of the right hand side and mitral valve is located between atrium and ventricle of the left hand side. They prevent the back flow of blood from ventricles to their respective atria.

Dub, being the second sound is written as S2. It is produced due to the closing of pulmonary (located between right ventricle and pulmonary artery) and aortic valves (located between left artery and aorta).

These valves prevent the back flow of blood from arteries into the ventricles.

The time between the two sounds is often taken as the measure of the diastole i.e. ventricular filling.

Wheezing refers to a high-pitched sound produced when a person breathes, especially during exhale. It is caused by constriction of the airways or inflammation. It is considered as a symptom of various diseases such as asthma, COPD, allergies, bronchitis etc.

8 0
3 years ago
Bed Bugs belong to which of the following groups (taxa)? (select all choices that are correct)
kotegsom [21]

Answer:

Bed bugs belong to the Cimicidae family (that's Latin for bloodsucking wingless bugs). They come in the order of Hemiptera.

7 0
2 years ago
What have scientists learned from studying seismic waves
Reika [66]
Scientists are able to understand the earth's interior by studying these seismic waves. They are waves of energy that travel through Earth, and actually move similarly to other types of waves, like sound waves, light waves, and water waves.

It’s quite interesting because
they give out lots of useful information.
But really this only scratches the surface on what they can do!

Happy to help!
~Brooke❤️
8 0
3 years ago
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