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Romashka [77]
3 years ago
8

Explain how cells specialize to form specific tissue and organs?

Biology
1 answer:
S_A_V [24]3 years ago
5 0
<span>All cells have the same DNA. They are different because different genes have been locked up and only some of them are expressed. The process began in the embryonic stage, when stem cells are turned into different types of cells by turning off some of the genes. Scientists have been looking for ways to reverse the process, meaning turning specialized cells back into stem cells. Some success has been reported using different methods. The latest one uses a weak acid to stress the cells.</span>
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chrosomes are found insise the______ of a cell. They are ______ pairs of chromosomes in every human body cell. One of each pair
RoseWind [281]

Answer:

23 pairs nucleus parents and dna

i know that the 23 pairs is right and i also think that the rest is right to

5 0
3 years ago
All of the trees in an orchard were derived from the same rootstock, but half had scion "A" grafted and other half heed a differ
Ostrovityanka [42]

Answer: Option D.

There is not enough information to know way the fruit will look like.

Explanation:

Rootstock is the underground part that is inside the soil.

The scion is the above part that is normally grafted to the rootstock. The scion develop into shoots and give rise to plant leaves, fruits, flowers e.t.c.

Scion is chosen base on the desired characteristics you want the plants to be.

Scion can be choose to get large fruits or pink flowers e.t.c.

The above question did not state what type of scion was chosen or used to produce a desired fruit.

4 0
3 years ago
Describe the evidence scientists discovered which demonstrate the evolution of whales from land-based mammals to water-based mam
Bumek [7]

Answer: We have found fossils that share specific bony traits that are found only in all whales but absent in every other mammal group, indicating descent from a shared common ancestor with modern whales, and these fossils had legs fully adapted for walking on land, and fundamentally identical to those of older mammals that precede the shared common ancestor that these mammals share with whales.

This tells us that the shared common ancestor of whales and these mammals with legs almost certainly had legs themselves, and inherited those legs from their own older mammal ancestors.

Therefore, whales have ancestors in their lineage that walked on land with legs.

(We also have multiple fossils of ancient whales that had legs transitional in form between fully terrestrial walking legs and flippers adapted for swimming, and modern whales still possess a remnant hip bone buried deep in their bodies.)

5 0
2 years ago
Bio on edge!!!
OLga [1]

Answer:

Item 1 is phenotype

Item 2 genotype

The "p" represents  an allele

Explanation:

3 0
3 years ago
A. Do you think sodium carbonate is an acid or a base, and why? (2 points)
irga5000 [103]
Sodium carbonate is a basic salt because it is a salt derived from a weak acid and strong base.
7 0
2 years ago
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