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Dmitry [639]
4 years ago
15

Did dinosaurs exist at the same time as humans?

Biology
2 answers:
kipiarov [429]4 years ago
4 0

No, dinosaurs ruled the earth before humans.

Inga [223]4 years ago
3 0

No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs. Many scientists who study dinosaurs (vertebrate paleontologists) now think that birds are direct descendants of one line of carnivorous dinosaurs, and some consider that they in fact represent modern living dinosaurs. This theory remains under discussion and shows that there is still much we don't know about dinosaurs.


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SVEN [57.7K]

Answer:

well with out it we won't understand dna

but heres the scientific answer

Explanation:

DNA replication allows for organisms to be reproduced from the parent.

After a sperm (from male) and egg (from female) cell have combined, they immediately start to divide. At this point, the cell is called a zygote.

In order for the cells to divide, they need DNA from the mother. They don't steal it. They just replicate it. For a cell to use DNA, it needs to be in the form of a chromosome, a tightly-packed DNA structure

DNA replication allows for organisms to be reproduced from the parent.

4 0
4 years ago
Use the points of the cell theory to say why humans and bacteria are similar.
Genrish500 [490]

Answer:

Humans have many cells. Bacteria have one cell. The second point is that cells are the basic unit of structure and function in humans and bacteria. The third point is that new human and new bacterial cells come only from other human and bacterial cells.

Explanation:

8 0
2 years ago
Elizabeth is nursing her new-born daughter, and holds the baby up to her breast. As the breast strokes the child’s cheek, the ch
Lesechka [4]

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A (rooting)

Explanation:

8 0
3 years ago
What is the name for the region toward the middle of a replicated chromosome where sibling chromatids are connected?
alina1380 [7]
Hey there,
<span>Centromere is the answer.

Hope this helps :))

<em>~Top</em>
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3 0
3 years ago
What are the two main ways bacteria cause illness?
oee [108]

Answer:

A. By releasing toxins that poison your cells

B. By using your cells to make copies of themselves

Explanation:

Within the body, bacteria can divide (multiply) and kill host cells by disrupting their normal functioning. Moreover, bacteria secrete toxins that are able to destroy host cells' metabolic machinery.  For instance, many bacteria synthesize exoenzymes and interferons that disrupt and destroy host cells. Bacterial toxins can be synthesized internally in order to develop sensitivity through antigenic properties.

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