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lara [203]
2 years ago
6

What is a density-independent factor in controlling a population?

Biology
1 answer:
elena55 [62]2 years ago
4 0
Diseases are the most deadly compared to water supply, tornados, and access to food. And more and more people are dying from diseases as the world gets worse .
Plz mark brainliest
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Explain in your own words two ways that we know the cell clones carry the recombinant plasmids
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Plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exists in bacterial cells, and they also occur in some eukaryotes. The genes carried in plasmids provide bacteria bacteria with genetic advantages, such as antibiotic resistance. To know whether the cell carry recombinant plasmids; only cells with a plasmid will reproduce and also the color of the colonies in E. coli plasmid recombination experiments allows scientists to distinguish colonies with recombinant plasmids from those without. 
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3 years ago
Many plant cells have more than two complete sets of chromosomes in each cell. Explain how this might occur.
otez555 [7]
Polyploidy (more than two complete sets of chromosomes) is not rare among plants. For example, pollen grains may reach female flowers via animals or wind. In some cases, pollen grains from species with 4 complete sets of chromosomes will have 2 sets of chromosomes. Pollen grains may fuse with a female reproductive organ with 1 set of chromosome (so, female plant must have 2 sets of chromosomes). The resulting zygote will have 2 + 1 sets of chromosomes, so the plant will have 3 complete sets of chromosomes.
7 0
3 years ago
Help please ^w^ plz.
MrRissso [65]
1. C
2.B
3.C
4. A
5. False
6.True
7.False
8.True
9.True
10. false

Hopefully this help
4 0
3 years ago
BRAINLIEST <br>Why would coming to land be an advantage to early amphibians?
Luda [366]

it would be kind of an advantage as they breathe air and just stay on land and to get food it can go into the water

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3 years ago
Explain with examples of each, how both physical and chemical weathering, along with erosion, can change Earth's surface.
Lena [83]

Answer:

Both physical and chemical weathering, along with erosion, can change Earth's surface as physical weathering allows breakdown of rock into smaller pieces, these pieces can be move from one place to another through water, wind or ice (erosion), and when the smaller pieces will settle down at a place, rain water can react with the soil or smaller rock pieces to form rock minerals.

For example: Running water, wind, and rapid heating/cooling allows the rocks to break down into smaller pieces or grains (physical weathering), then the small grains are transported and settled away from the source area through wind or river (erosion), and at the end the surface area exposed to air  for chemical weathering.

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3 years ago
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