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Oduvanchick [21]
3 years ago
15

What technological advancement was necessary before scientists could begin to observe cells?

Biology
1 answer:
lara31 [8.8K]3 years ago
8 0
The invention of the microscope is the answer. 

I hope this helps. 

Have a nice day. 
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Help please <br><br> In your own words please <br> Thank U
ELEN [110]
Hello!
2.Allergens cause an allergic reaction. T<span>heir immune system produces antibodies, that are triggered depending on what substance it is.

3.Asthma is classified as an allergy because substances may trigger asthma and sometimes they do not, just like how certain substances cause the allergies.
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7 0
3 years ago
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If Mr. and Mrs. Johnson had four children together, what color of hair would the children likely have?
Ksju [112]
If the parents have black hair then all the kids would have black hair (a)

if one parent has blonde hair and the other has black hair then 2 kids would be blonde and 2 would have black hair (d)

if the parents have blonde hair then the kids would have blonde hair (c)
7 0
2 years ago
Why does this recent discovery about the galapagos finches prove that it’s often challenging for scientists to determine when tw
34kurt

Because the species of finches on the Galápagos island have various appearances but still mate with other finches and produce fertile offspring making it is difficult for scientists to distinguish between two groups of individuals as separate species.

<h3>What is the island of Galápagos?</h3>

The Pacific Ocean island of Galápagos is located to the west of Ecuador. It is a volcanic island known for its diverse and endemic types of living things.

<h3>Why is it difficult to find new species in Finches?</h3>

Charles Darwin spent several years studying the many species of finches on the Galápagos island. He saw a great deal of variation in these finches, which supports the hypothesis of natural selection.

However. it is challenging for scientists to discern between two separate species because the species of finches on the Galápagos island have a variety of features that are different but still mate with other finches and produce fertile offspring.

To learn more about evolution visit:

brainly.com/question/19431143

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5 0
1 year ago
how do you think plant cells differ from animal cells? (Hint: what can plants do that animals cannot?
zvonat [6]
A difference between plant cells and animal cells is that most animal cells are round whereas most plant cells are rectangular.Plant cells have a rigid cell wall that surrounds the cell membrane. Animal cells do not have a cell wall. When looking under a microscope, the cell wall is an easy way to distinguish plant cells.

Difference Between Plant And Animal Cells 1 Chloroplast. Like animal cells plant cells have mitochondria. 2 Cell Wall. Animal cells do not contain a cell wall while plant cells and fungi cells do. 3 Vacuole. Vacuoles are very large membrane-bound sacs within plant cells.
3 0
3 years ago
Read 2 more answers
A hip replacement was not performed properly, and the right hip is not aligned to the left hip by just 1 cm. What would be the e
seropon [69]

Answer:

It would be painful at it's initial stages

Explanation:

The improper placement of the right hip is going to cause an imbalance in walking, standing and most especially while climbing the stairs. This condition can be corrected by using a footwear with a higher sole on the right leg

3 0
3 years ago
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