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natali 33 [55]
3 years ago
5

Help pleaze im taking an exam

Biology
2 answers:
aev [14]3 years ago
7 0
Chloroplasts are used to color plants green and cell walls are only in plants I’m pretty sure so chloroplasts and cell walls
GREYUIT [131]3 years ago
3 0

Answer:

the last one

Explanation:

i'm in 7th grade too.

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What is the difference between plants and animal cells
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Plant cells have chloroplasts. They also have cell walls. They are also rectangular. Animal cells are more round and they do not have chloroplasts or cell walls.Animal cells also have small vacuoles.While plant cells have a one large vacuole.
3 0
3 years ago
What are the mechanisms by which aneuploidy and polyploidy are caused? What are the mechanisms by which aneuploidy and polyploid
sleet_krkn [62]

The correct answer is:

The principal cause of aneuploidy is chromosome nondisjunction during mitosis or meiosis. Polyploidy in nature can result either from the duplication of euploid chromosome sets from a single species or from the combining of chromosome sets from different species.  

Aneuploidy is a phenomenon when there is the presence of an abnormal number of chromosomes in a cell (an extra or missing chromosome). Usually it appears as a result of improper cell division (chromosomes don’t separate) and it can cause many genetic disorders.

Polyploidy refers to a state when there are more than two sets of chromosomes (one from mother one from father). Triploid (three sets of chromosomes) and tetraploid (four sets of chromosomes) chromosomes are examples of polyploidy. This phenomenon is most common in plants.

5 0
4 years ago
I need help with this
Inessa [10]

G...eventually the larger fish would catch on that these smaller fish are a problem.

8 0
3 years ago
A patient states that her pain is an 8 on a scale of 1 to 10. this is known as the ______________ in a history of present illnes
amid [387]
It's known as severity.
The fact that her pain is on the scale between 1-10 refers to the severity of her pain.

Hope that helped ^U^
4 0
4 years ago
Crop dusters like this one are used to spray chemical fertilizer, weed killers, and insecticides over large areas of crops. What
serious [3.7K]
C would be the answer I believe
6 0
3 years ago
Read 2 more answers
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