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xeze [42]
4 years ago
13

Which principle states that no two organisms can occupy the same niche within an ecological community?

Biology
1 answer:
Sedaia [141]4 years ago
5 0

Answer:

competitive exclusion

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Cells starting mitosis and meiosis begin with what set of chromosomes. True or False
Arisa [49]

Answer:

with haploid or diploid set of chromosomes. True

Explanation:

There are two types of cells in the body, haploid cells and diploid cells. The biggest difference is related to the number of chromosomes that each cell contains, while diploid cells contain two chromosomes (2n), haploid cells contain a chromosome (1n).

Features:

1. A haploid cell has only one set of chromosomes (n), while diploid cells have two sets of chromosomes (2n).

2. In humans, somatic cells are diploid, while gametes are haploid.

3. Diploid cells develop as a result of mitotic cell division, while haploid cells develop as a result of meiotic cell division.

4. Mitosis produces 2 identical daughter cells, where both stem and daughter cells are diploid. In meiosis, a diploid cell divides twice to produce 4 haploid daughter cells.

5. Humans and most animals are considered diploid organisms, while algae and fungi are examples of organisms that are haploid in most of their lives. Male bees, wasps and ants are also haploid.

5 0
3 years ago
Why do we have different time zones
swat32

As Earth rotates, different parts of Earth receive sunlight or darkness, giving us day and night. Since different parts of Earth enter and exit daylight at different times, we need different time zones. In the late 1800s, a group of scientists figured out a way to divide the world into different time zones.

6 0
3 years ago
Read 2 more answers
What comprises a codon? A) a complementary section of RNA B) a sequence of three nucleotides C) a random sequence of nitrogen ba
Lina20 [59]

Answer:

B) a sequence of three nucleotides

Explanation:

A codon is the sequence of three nucleotides that decide that which particular amino acid would be incorporated in the polypeptide chain. Each codon code for a particular amino acid and responsible for the primary structure of proteins.

During translation the transfer RNA have the anticodon on its one side and amino acid bound to it on its other side. It adds the amino acids to growing polypeptide chain by binding to particular codon on messenger RNA.

Example; AUG is the starting codon for every protein and code for methionine in eukaryotes and anticodon for it is UAC.

8 0
3 years ago
How do scientists determine where an earthquake starts?
Arturiano [62]
Track the ripples of energy to the hypocenter
3 0
3 years ago
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Causes of environmental problems​
ratelena [41]

Answer: Deforestation, Climate change, Air pollution, Habitat destruction, Energy production, fossil fuels,Pollution, and more

Explanation:do you need more answers from me?

4 0
3 years ago
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