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nignag [31]
3 years ago
12

Nonnative species can harm some populations in an ecosystem why

Biology
1 answer:
katrin [286]3 years ago
8 0
Nonnative species can be harmful to the environment because it has not adapted to that environment. It also disturb other species on their food cycles and living. 
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If the horse (Equus caballus) has 32 pairs of chromosomes, and the donkey (Equus asinus) has 31 pairs of chromosomes, then 63 ch
tatyana61 [14]

Answer:

True

Explanation:

During meiotic division involved in the formation of the gametes in organisms. The meiotic division reduces the number of chromosomes by half during gamete formation.

In the given question, Horse contains 32 pairs of chromosomes or 64 chromosomes and the donkey contains 31 pairs of chromosomes or 62 chromosomes.

The gametes of a horse through meiotic division will contain 32 chromosomes and gametes of a donkey through meiotic division will contain 31 chromosomes.

When these gametes will fuse then zygote will be formed with 32+ 31 = 63 chromosomes. Since the mule contains 63 chromosomes, therefore they are sterile organisms.

Thus, true is the correct answer.

6 0
3 years ago
What causes fast rate of growth in eichhornia​
Mice21 [21]

Answer:

Due to short life cycle and mode of reproduction.

Explanation:

The main cause of the fast growth rate of Eichhornia is their mode of reproduction and shorter life cycle. Eichhornia reproduce through sexually and clonally. Its life cycle is only 10 days means that within 10 days the population of Eichhornia becomes double. It reproduces through sexual reproduction as well as asexual reproduction such as clonally which also contributes for the fast growth of eichhornia plant.

3 0
3 years ago
Tillage can release pollutants in the soil and
Fed [463]

Answer:

Increase erosion because the soil is being loosened

Explanation:

4 0
3 years ago
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Check out this potato plant. We eat lots of potatoes. They are considered to be(1) a vegetable and (2) starchy. Starches are mad
kakasveta [241]

Answer:

The two main component of starch are amylose and amylopectin.

Explanation:

Carbohydrates are the important biomolecules of the living organisms. They provide structural and functional support of the living organisms. Carbohydrates are important in both plants and animals.

The starch provide important function in plants. The starch is polymers of made of glucose linked through the glycosidic bond. Amylose is the linear structure and amylopectin includes the branched chain and interaction in the structure of the strach.

Thus, the correct answer is amylose and amylopectin.

3 0
3 years ago
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How do astronomers measure distances to stars?
a_sh-v [17]

Answer:

I found this online:

Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.

3 0
4 years ago
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