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Harrizon [31]
3 years ago
13

Three main categories of freshwater ecosystems are

Biology
1 answer:
sladkih [1.3K]3 years ago
6 0
<span>Lentic is slow moving water,including pools,ponds and lakes.

Lotic is fast moving water,for example streams and rivers.

<span>Wetlands are areas where the soil is saturated or inundated for at least part of the time.

Hope this helps :D</span></span>
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The mineral fluorite is used in the process to make what
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The mineral fluorite is the mineral form of calcium fluoride.It is also called fluorspar. Its chemical formula is CaF2.
The mineral fluorite is used in the process to make steel and aluminium. It is used <span>as a </span>flux<span> in the manufacture of steel and other metals to eliminate </span>impurities<span>.</span>
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Yall Im struggling, if u cant read it, the question is “why does a mountain climber need an oxygen supply at very high altitudes
Galina-37 [17]

Answer: Because it is harder to draw breath in. And the cold

Explanation: At higher altitudes, it becomes more dangerous, and you can develop altitude-related illnesses such as HAPE and HACE. I read a book called<em> Into Thin Air</em>, and in the book the author goes into detail on the details/complications of climbing Mt.Everest and oxygen needs. Mountain climbers use canisters of oxygen called <u>Supplemental Oxygen.</u>

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_____ refers to the natural resources and services that keep us alive and other species alive.
Vsevolod [243]

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Natural Capital

Explanation:

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3 years ago
What are all living things made of?
Elis [28]

Answer:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures. In multicellular organisms, similar cells form tissues.

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2 years ago
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Read each of the sentences that describe what happens either during mitosis or meiosis. Drag each sentence into the correct box.
kiruha [24]

Answer:

MEIOSIS:

- Each replicated chromosome pairs with its corresponding homologous chromosome

- Tetrads form and crossing over sometimes occur

- Paired homologous chromosome line up across the center of the cell.

- Four haploid daughter cells form that are not identical to the parent cell

MITOSIS:

- Homologous chromosomes do not pair

- One row of chromosomes line up at the center of the cell.

- The cell nucleus divides only once

- Two diploid daughter cells form that are identical to the parent cell.

Explanation:

Mitosis and Meiosis are the two cellular divisions that occur in living organisms. Mitosis is the kind of cell division that produces two diploid daughter cells that are genetically identical to the parent cell while Meiosis produces four haploid daughter cells (gametes) that are genetically different from the parent cell.

Based on the general description of the two cell divisions above, the following events take place in them respectively:

1) MEIOSIS:

- Each replicated chromosome pairs with its corresponding homologous chromosome (similar but non-identical chromosome from each parent).

- Tetrads form and crossing over sometimes occur. Tetrads are the structures that form when two homologous chromosomes pair while crossing over is the exchange of chromosome segment between two non-sister chromatids of homologous chromosomes. These two only occur during meiosis.

- Paired homologous chromosome line up across the center of the cell during metaphase I of meiosis.

- Four haploid daughter cells form that are not identical to the parent cell. Note that meiosis reduces the chromosomal number of the parent cell by half.

2) MITOSIS:

- Homologous chromosomes do not pair during mitosis.

- One row of replicated chromosomes (sister chromatids) line up at the center of the cell during metaphase.

- The cell nucleus divides only once in mitosis as opposed to twice during meiosis.

- Two diploid daughter cells form that are identical to the parent cell. Note that mitosis retains the chromosomal number of the parent cell.

4 0
3 years ago
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