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Serggg [28]
3 years ago
8

During which period did the first vascular plants appear? A. Cambrian B. Ordovician C. Silurian D. Devonian

Biology
2 answers:
arsen [322]3 years ago
7 0
Psilopsids were he first vascular plants which were in C. Silurian period!
guapka [62]3 years ago
5 0
<span>C. Silurian
</span>The first jawed fishes and uniramians (like insects, centipedes and millipedes) appeared during the Silurian (over 400 million years<span> ago). First vascular plants (plants with water-conducting tissue as compared with non-vascular plants like mosses) appear on land (Cooksonia is the first known).</span>
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Celery kept in the refrigerator for several days becomes limp why does this happen
Anastaziya [24]

Answer:

Because celery has losen the cell turgidity.

Explanation:

Celery <em>(Apium graveolens) </em>belongs to the family Apiaceae, is a marshland plant. Celery is used as a salad and its extract is used fro the preparation of herbal medicine.

Celery when kept in refrigerator for several days becomes limp as celery lose its water content and become dehydrated. The cell turgidity has been lost and celery wilt.

8 0
3 years ago
Are the cells in your skin different than the cells in your heart or in your bones? Are they
Gnesinka [82]

Answer:

They have same genes but cells use it differently

Explanation:

These cells are different because they use the same set of genes differently. for example neurons differ from other cells in the body because: Neurons have specialize cell parts called dendrites and axons. Dendrites bring electrical signals to the cell body and axons take information away from the cell body. Neurons communicate with each other through an electrochemical process.

8 0
3 years ago
This law states that allele pairs separate during the formation of gametes. This means that traits are transmitted to offspring
tankabanditka [31]

Answer:

Law of Segregation

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The aelle pairs seperate because the genes and the offsprings happen because of the genetic mutation of breeds and evolution changes them

3 0
3 years ago
Find the heights of the first three blades of grass by clicking the tip of each blade. Measure the heights to the nearest tenth
Eduardwww [97]

Answer:

5.2

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that is the only number, therefore  it it the average height of the grass

8 0
2 years ago
Animals that are the most similar, are found in completely different regions.
lana [24]

Answer:

true

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there are differents bears and they live in completly different biomes

3 0
3 years ago
Read 2 more answers
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