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Semmy [17]
3 years ago
15

During winter's freezing temperatures, some plants can remove water from their cells to reduce the amount of water that will fre

eze inside them. Why would plants need to do this
Biology
1 answer:
Nataliya [291]3 years ago
5 0

Answer:

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Explanation:

We know that water expands anomalously. It expands between 4- 0°C.

Hence water expands upon freezing. Ice has more volume than liquid water and takes up more space in plant cells.

The expansion of excess water as it turns to ice inside the cells would break the cells apart

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8. Are the chromosomes the daughter cells produced by mitosis the same as or different from
gizmo_the_mogwai [7]

The chromosomes the daughter cells produce through mitosis are the same. In mitosis, a cell duplicates the number of chromosomes in its nucleus to produce two identical daughter cells. So the original cell with 23 pairs (46 total), both daughter cells will have 23 pairs (46 total) each.

3 0
3 years ago
Which statements best describe how the Great Rift Valley in Africa formed? Check all that apply.
leva [86]

The answer is;

The rift valley formed when the crust pulled apart.

The rift valley formed at a divergent boundary.

Divergent boundaries occur when two adjacent convection currents in the mantle are spinning in opposite directions. This causes the upper crust to stretch creating tension due to drag in different directions on the local region. The tension causes the crust to crack severally and the middle crust block dropping in comparison to flanking regions.  

7 0
3 years ago
Read 2 more answers
Describe four ways a city can reduce car use.
Goryan [66]

Answer:

The city can build more convenient public transportation like trains and buses to transport people around in large numbers, reducing the amount of cars.

Likewise, the city can also find alternative options of energy sources to more renewable ones, like investing in a hydroplant and solar panels.

The city can also put up conveniently located bicycle stops with bicycles up for rent at an affordable cost, that will encourage more people to take other modes of transportation, while exercising as well.

Lastly, the city can also put up car taxes, to further reduce the numbers of cars on the road as not many people will be willing to pay the car taxes.

5 0
3 years ago
The trp and lac operons are regulated in various ways. how do bacteria regulate transcription of these operons?
Vlada [557]

Operon is not transcribed:

-lac operon: lactose absent

-trp operon: tryptophan present

Positive control transcription of Operon does not speed it up:

Lactose and glucose are present, -lac operon

Tryptophan is lacking in the -trp operon.

Operon is transcribed quickly through positive control:

-lac operon: lactose present, glucose not

Only negative control is used to regulate the trp operon. The operon genes are not transcribed when tryptophan is present.

Both positive control and negative control are used to control the lac operon.

Negative control: —Transcription is inhibited when lactose is missing due to the activity of the repressor protein.

—The repressor protein is deactivated and transcription is triggered when lactose is present.

Positive control: —In the absence of glucose, another regulatory protein (CAP) attaches to the lac operon's promoter, speeding up transcription in the presence of lactose.

Learn more about lac operons here:

brainly.com/question/1695549

#SPJ4

7 0
2 years ago
How easy or difficult was it to find an example of each category?
Anvisha [2.4K]
Depending on what resources you use, it can be easy or difficult to get examples of each categories

Some easy way can include searching google, wikipedia, encyclopedia.org, etc. These usually give you a broad and large amount of information that you can draw out of, and an over view that allows you to know what the paragraph would be talking about before you use it. 

Difficult ways would be searching through specific websites, such as national geographics, etc, which gives you specific details on the idea (and is more trusted then the others)

Remember too always get facts, not opinions, unless your question asks for others opinions, and to look for what researchers or well-known people within that topic says, and to not get any information from "who-knows-who-typed-it" websites, such as ask.com, etc.


hope this helps
4 0
3 years ago
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