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AlekseyPX
3 years ago
7

Are there differences in the DNA in different types of human body cells

Biology
1 answer:
NeX [460]3 years ago
5 0
The DNA is stored in the nucleus of the cell. Different genes are active in different kinds of cells. Most living things are composed of different kinds of cells specialized to perform different functions. A liver cell, for example, does not have the same biochemical duties as a nerve cell.
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A new predator is introduced into the ecosystem shown in the food web below. This predator feeds on bees and mice. How will this
Inessa05 [86]

Answer:If your from Study island, the answer is C: There will be a decrease in bees and mice which will cause a increase in the black bear and fox population.

Explanation:

Because a new predator is coming in and the new predator won't hunt the other predators it will just hunt the weaker ones like the mice and bees

6 0
3 years ago
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In southern Arizona, in the Chiricahue Mountains, there are species of toads that live aciya
inysia [295]

Answer:

<em>Geographic isolation</em>

Explanation:

Geographic isolation can be described as a term that describes the model of speciation in which a biological population becomes isolated from other members of the population and can no longer have gene flow with them.

The same scenario of gene isolation is occurring in the species of taods which live at the top of the mountains in southern Arizona. This population has become reproductively isolated fro all other species of toads within the mountain range.

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3 years ago
What role did mycorrhizae play in the transition of plants to land?
Colt1911 [192]
Mycorrhizae are associations between fungi and the roots of plants, where the Fungi provides minerals to the plant. It enabled plants and fungi to be the first organisms to invade land successfully 430 million years ago. In most cases the relationship between host plants and the mycorrhizal fungus is mutualistic, or mutually beneficial. The Mycorrhizal fungi come into direct contact with plant roots and with the soil, adding to the plants ability to gather nutrients and water from the soil through the fungus. 
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3 years ago
Every year a rice farmer collects his crops and burns the soil when he is done once the soil is enriched with debris he replants
brilliants [131]

Every year the farmer was taking care of his ice field, keep it clean and clear of all the unnecessary shrubs and then reuse the debris to fertile the soil again and then grow rice again. But since he fell sick, there is no one to take care of his rice field which will leads to the growth of unnecessary plants and weeds in it.

There will grow wild plants and shrubs which will contaminate the rice field.


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3 years ago
Which argument best supports how nutrients and oxygen get to cells to provide energy?
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The digestive system breaks down food, the respiratory system takes in oxygen, and the cardiovascular system delivers the oxygen and food to the cells.
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2 years ago
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