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Bas_tet [7]
3 years ago
11

Which statement best describes a physical change?hurry fast help ​

Biology
2 answers:
barxatty [35]3 years ago
5 0

the 3rd one.

this is due to the chemical properties remaining unchanged and the physical properties changing

Aliun [14]3 years ago
4 0

Answer:

the third one

Explanation:

physical change is only on looks

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Differences between arteries, veins and capillaries​
matrenka [14]

Answer:

There are three main types of blood vessels:

1)Artery ---

i) It is a blood vessel having a thick wall.

ii) It carries blood from the heart to different parts of the body.

iii) On regulatory demand of the body it can dilate or constrict.

iv) It doesn't contain any valve.

v) All arteries carry oxygenated blood except the pulmonary artery.

2)Vein ---

i) It is a blood vessel having a thin wall.

ii) It brings blood from different parts to the heart.

iii) It can't dilate or constrict under normal conditions.

iv) It contains valves that allow the blood to flow in one direction towards the heart.

v) All veins carry deoxygenated blood except the pulmonary vein.

3)Capillary ---

i) It is a very narrow blood vessel that has very thin walls.

ii) It forms a network throughout the body in all living cells connecting arteries to veins.

iii) It can dilate or constrict according to the requirement of tissue.

iv) It doesn't have any valve.

v) It contains mixed blood as it connects arteries and veins

5 0
2 years ago
Why is it difficult to observe individual chromosomes with a light microscope during interphase?
asambeis [7]

Answer:

They have uncoiled to form long, thin strands.

Explanation:

Chromosomes are present in cell nucleus and consist of chromatin. Genes are present in linear order on chromosomes.  The chromosomes become visible under the microscope as distinct structures during cell division. When cells are not dividing, the chromosomes decondense to loose their individuality and make the mass of chromatin.  

Chromatin is complex of DNA and packing proteins. As the cells enter the prophase stage of cell division, condensation of chromatin occurs and individual chromosomes become visible under microscope. Before that (during interphase), chromosomes are not visible as they are present in decondensed form.

7 0
3 years ago
How does natural selection favor an individual that can detect deceitful communicators? see section 50.5 ( page 1062) ?
Gnesinka [82]

This is comparable to the impression of the 'sneaky' males in the side-blotched lizard. Natural section favor an individual by the detector or sensor will sustain less cost and increase an advantage and gain over others incapable to distinguish the deceitfulness. 

4 0
3 years ago
Slime moulds (Acrasiomycota) are protoctists. They feed on decaying organic matter, bacteria and protozoa.
pantera1 [17]
<span>C. I and III only is the answer hope  i helped</span>
5 0
3 years ago
Which is a common practice for farmers to yield higher crop production?
IrinaVladis [17]

Answer:Between A and B is one of those i think

Explanation:

3 0
3 years ago
Read 2 more answers
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