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Alchen [17]
2 years ago
12

What role do genes and chromosomes play in the hereditary process?

Biology
1 answer:
uysha [10]2 years ago
6 0

Each gene occupies a specific position on a chromosome. Because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body, it follows that genes are responsible for all the characteristics you inherit. These pair up to make a total of 46 chromosomes.

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Plant life first appeared on land during which of the following periods?
marusya05 [52]

The correct answer is B. Ordovician period

Explanation:

Plants are mainly multicellular organism that depends mainly on photosynthesis to obtain energy, this includes a wide variety of species such as grass, flowering plants, trees, shrubs, etc. Additionally, plants are considered as one f the two major divisions or kingdoms along with animals. In terms of history, it has been determined first land plants appear during the mid-Ordovician period around 470 million ago, although organisms that were the origin of land plants developed in water in previous periods, also by the Devonian period a wide variety of plants have emerged with features that are still part of plants nowadays. Therefore, plant life first appeared on land during the Ordovician period.

3 0
3 years ago
How could you tell an animal cell from a plant cell?
Nikolay [14]

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.

7 0
3 years ago
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How are hydrogen bonds different from covalent bonds ? covalent bonds are organic; hydrogen bonds are inorganic the compounds th
GuDViN [60]
In a discrete water molecule, there are two hydrogen atoms and one oxygen atom<span>. Two </span>molecules<span> of water can form a hydrogen bond between them; the simplest case, when only two </span>molecules<span> are present, is called the water dimer and is often used as a model system</span>
7 0
2 years ago
All hormones are made wither from cholesterol or amino acids <br> a. True<br> b. False
viktelen [127]

Answer:

True

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There are two type of hormones:

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- Peptidic hormones, which are proteins, and as such, are made with aminoacids.

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What are the characteristics of shifting cultivation?
ki77a [65]
It should be purpose, inputs, capital, labor, and produce
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3 years ago
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