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amid [387]
3 years ago
11

how do the life functions of unicellular organisms and multicellular organisms compare in meeting the needs for life

Biology
1 answer:
nika2105 [10]3 years ago
7 0
Well for both of them to survive they need oxygen, food, water amino acids, and a way to leave waste, but that depends on the type of cell
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Wolves and foxes both hunt snowshoe rabbits. if there was an increase in the number of wolves, which of these is the most likely
Sunny_sXe [5.5K]
<span>The number of snowshoe rabbits would decrease, and the number of foxes would decrease.</span>
4 0
3 years ago
1) How is DNA condensed to form a chromosome?
Bumek [7]

Answer:

1) DNA is wrapped around histone proteins to form chromatin

2) The genes are the functional units, the segments between them are used for regulation

3) The genetic code is the language used, gene expression is how the cell uses the information, the activity of the genes.

Explanation:

1) DNA forms a DNA/protein complex called chromatin. It does this by wrapping around histone proteins. These histone proteins are usually present in the form of a nucleosome, which is a unit containing 2 copies of 4 histones (H2A, H2B, H3 and H4). The chromatin fibre at its most compact forms tightly coiled structures called chromosomes. These structures are only present during cell division. When the cell is in interphase (i.e. not dividing), the chromatin is not as tightly condensed, and instead the chromatin is more relaxed to allow the genes within to be expressed.

2) Genes are the functional units that the cell uses to make RNA and protein. The genes are first transcribed into RNA, which is processed and then translated into a polypeptide chain, which forms a complete protein that performs activities in the cell/tissue/organism. However, the whole genome does not form genes, there are regions that do not correspond to a gene. These regions are called "non-coding DNA" or sometimes even "junk DNA". However, that does not mean that these regions do not have important roles. The role of this DNA is usually in regulating the activity of the nearby genes. This DNA might contain important regulatory sequences such as promoters/enhancers/silencers that control how the gene is used by the cell, by for example, recruiting transcription factors or silencing proteins.

3) The genetic code is the language used by the cell. It explains how the cell can transcribe the information in the DNA, to RNA, process the RNA, and then translate the RNA into a polypeptide, and eventually a mature protein. In contrast, gene expression represents how the cell actually uses this information. Not all the genes are transcribed at the same time, instead, the activity of genes is carefully controlled to produce appropriate gene expression patterns, allowing the cell to properly perform its functions. Gene expression is hugely different between cells in an organism, for example the gene expression patterns of a muscle cell will  be hugely different to that of a blood cell.

5 0
3 years ago
Prokaryotes living in our large intestines provide us with _____. prokaryotes living in our large intestines provide us with ___
liberstina [14]
The answer is it provides us with vitamins. Hope this helps.
5 0
3 years ago
Design a controlled experiment to determine whether earthworms change the forest ecosystem.
Orlov [11]

"The experimental hypothesis may be that if Asian worms are introduced into a <u>deciduous forest</u>, the soil's nutritional composition will alter. The control group would consist of a region of the forest that has been worm-free in some way. But in order to serve as a control, this forest would experience the same amount of sunshine, heat, and precipitation. In order to determine if Asian worms actually have an impact on the forest ecology, the scientists could then analyze the amounts of nitrogen, phosphorus, and sulfur in the two portions of the forest."

Deciduous forest- A deciduous forest is one that is mostly made up of trees that shed their leaves in the fall.

To know more about the forest ecosystem, click on the below link,

brainly.com/question/24258058

#SPJ4

6 0
1 year ago
What do you think these moth wings mimic? Why do you think this kind of mimicry can protect the moth?
Drupady [299]

Explanation: I think camouflage method or a design that scares away predators.

8 0
3 years ago
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