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VladimirAG [237]
3 years ago
9

How did scientists discover the common structure of cells?

Biology
2 answers:
erastova [34]3 years ago
7 0
Scientists first discovered cells through the microscope
Ket [755]3 years ago
4 0
They used the mcroscope to observe the structures of the cell. Some scientists draw while they are observing in the microscope

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The breathing rate is the dependent variable because it can be affected by varying weights.

P.S the answer was on quizlet
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Which uses water to remove smoke from burning coal
ANTONII [103]
A scrubber uses water to remove smoke from burning coal.
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What proportion of all species that ever lived has become extinct?
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4 0
3 years ago
The eye is an organ.why?<br>Skin is an epithelial tissue.why?<br>​
Brilliant_brown [7]

Answer:

"The organs have blood vessels as well as the nerves in it, the organ is also present within the organ motif is also being executed in these organs. So as eye. Epithelial tissue helps in protection against the microbes so as skin having different layers."

Explanation:

Eye is an organ because, the organs have blood vessels as well as the nerves in it, the organ is also present within the organ motif is also being executed in these organs. Similarly, inside the eyeball there is an organ which is known as retina, with is connected with the neural and epithelial tissue which helps in detection of the light which enters into the eyeball.

Skin is an epithelial tissue because, epithelial tissue helps in protection against the microbes. Similarly skin is composed of different layers of epithelial tissue which is also supported by the layers of connective tissue, helps in protection of internal organs from damage as well as dehydration.

3 0
3 years ago
Anyone know the answer ?
horrorfan [7]

Answer:

advantages of sexual reproduction:

it produces variation in the offspring

the species can adapt to new environments due to variation, which gives them a survival advantage

a disease is less likely to affect all the individuals in a population

disadvantages of sexual reproduction:

time and energy are needed to find a mate

it is not possible for an isolated individual

advantages of asexual reproduction

the population can increase rapidly when the conditions are favourable

only one parent is needed

it is more time and energy efficient as you don't need a mate

Disadvantages of asexual reproduction

it does not lead to variation in a population

the species may only be suited to one habitat

disease may affect all the individuals in a population

Explanation:

6 0
2 years ago
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