A student keeps an onion bulb in a jar filled with water and observes that the roots continue to grow in length. The student cuts a root tip and observes it under a microscope. The image shows the observations. Which option supports the reason for an increase in the root’s length?The root cells undergo meiosis to expand and increase in length.
The root cells undergo mitosis to combine together to make the root grow.
The root cells undergo mitosis to form new identical cells.
The root cells undergo meiosis to form different types of cells.

Answers

Answer 1

Answer:

The root cells undergo mitosis to form new identical cells.

Explanation:

Mitosis is the process of cell division, where a cell divides into two equal cells with the same number of chromosomes. These new cells are used to promote the growth of a biological structure, promoting an elongation, a replacement, a concert, or an increase in volume. This can be seen in the case of the growth of the tip of the onion root, where the cells underwent mitosis, forming equal cells, to promote the growth of a new tip.


Related Questions

Which statements are true? Check all that apply.

Answers

Answer:

A C and E i think

Explanation:

If a plant is an organism then the plants leaves, roots and stems are what level of organization?

Answers

Plants leaves, roots and stems are in the organ systems level.

—Evidence—
•] Plants contain just two organ systems. The shoot system includes all of the parts above the ground, such as leaves and stems, while the root system includes all of the parts below the ground, such as roots and tubers.

Which of the following is true of adaptive traits? they give organisms an advantage when it comes to survival
organisms with adaptive traits survive longer
organisms with adaptive traits produce more offspring
all of the above

Answers

I’m sorry I don’t know but if I did I swear I would’ve answered! I really do hope you figure it out tho!

what kind of flower is this?

Answers

Answer: could be Trifolium repens Aka the white clover

Explanation:

Make a claim about the types of wastes that the excretory system removes.

Answers

Answer:

Explanation:

Urea is the cellular waste product that the kidneys remove from the blood.Kidneys are the two bean shaped organs that has several functions to keep the body healthy. It not only removes urea from the blood, but also helps in the formation of urine and maintaining the fluid level of the body. The two kidneys are placed on the two sides of the spinal cord. The blood enters the kidney through the renal artery. The nephron within the kidneys mainly take out the waste products and the excess water from the blood and purifies it.If the kidneys of a person fail to work properly then it becomes important to perform dialysis for taking out the waste materials from the blood.

which structure could limits water loss in plants?
A) big leaves
B) waxy cuticle
C) phloem
D) non of above

Answers

Answer:

Big leaves cause water loss

Answer:

B) waxy cuticle

Explanation:

B) waxy cuticle

Why are dead or weakened viruses used instead of normal viruses to create a vaccine?

Answers

I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!

because dead viruses aren't as effective as dead than "alive"

Help please, will give points!

Answers

Butterfly- consumer, herbivore, heterotroph
Plants-Producer, autotroph
Caterpillar- consumer, herbivore, heterotroph
Bird- consumer, omnivore, heterotroph
Frog- consumer, carnivore, heterotroph
Chipmunk- consumer, omnivore, heterotroph
Snake- consumer, carnivore, heterotroph
Eagle- consumer, carnivore, heterotroph
Fox- Consumer, carnivore, heterotroph

Hope this helps :)

What is Nondisjunction
and when does it happen?

Answers

Answer:

I is when two or more chromosomes fail to separate, which makes daughter cells with abnormal amounts of chromosomes

Explanation:

Your welcome.

Bacteria reproduce asexually by ...

Answers

the last answer is correct, binary fission !!
Bacteria reproduce asexually through binary fission

why is taking action for global warming important? please help

Answers

Answer: Global warming will cause significant harm to the health of persons and their communities by compromising food and water supplies; increasing risks of morbidity and mortality from infectious diseases and heat stress; changing social determinants of health resulting from extreme weather events, rising sea levels,

Which statement best describes the term limiting factors?

Answers

Answer: what are the options?

Explanation:

How is carbon moving between the air and found it decreasing

Answers

Answer:

Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

A fence lizard is shown in the image below.



The main defense of a fence lizard is camouflage, which only works as long as the lizard stays still. Unfortunately, fire ants, which kill fence lizards, are not fooled by camouflage. When attacked by fire ants, some fence lizards hold perfectly still. Other fence lizards twitch to free themselves from the ants, and then they run away.


Use the above information to complete the following sentences.


Twitching when attacked

increases

a lizard's chances of surviving fire ants. Twitching

decreases

a lizard's chances of hiding from other predators.

Answers

Answer:

a lizards chance of hiding from other predators if twitching decrees if not twitching increes

Explanation:

Answer:Twitching when attacked

increases

a lizard's chances of surviving fire ants. Twitching

decreases

a lizard's chances of hiding from other predators.

Explanation:

How many atriums does the heart contain?

Answers

There are 2 atriums, The left atrium and the right atrium

does photosynthesis remove take or use co2 from atmosphere

Answers

Answer:

Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.

Explanation:

This is full explanation :)

Answer:

use and take?

Explanation:

they take in carbon dioxide and make it into glucose

Do mutations in body cells contribute to genetic variation?(1 point)

A) No, the causes of body cell mutations are outside the body and cannot alter DNA.

B) Yes, the mutations can be passed on to offspring and contribute to variation in the population.

C) Yes, these body cell mutations lead to mutations in the gametes.

D) No, the mutations cannot be passed to offspring and only affect the individual.

Answers

A mutation is the alteration of the genetic sequence of an organism, which can either be inherited or cannot be inherited. The mutation when transmitted to the offspring leads to genetic variation.

The correct answer is:

Option B. Yes, the mutations can be passed on to offspring and contribute to variation in the population.

Mutation is the change in the genetic sequence of the organism, which can be caused due to environmental factors and can be inherited.

The mutations can lead to genetic disorders, chromosomal disorders, or any other conditions. The mutations like a disease or adaptation that can be passed onto the offspring can result in genetic variation.

The mutation leads to genetic diversity, as the mutation is also the first step towards evolution. The organisms better suited to the environment will survive more and adapt more. These changes in the organisms will be inherited by the offspring leading to genetic variation.

Therefore Option B is correct.

To know more about mutation, refer to the following link:

https://brainly.com/question/4222118

When facing potential threats, how does the endocrine system assist the immune system? A. The endocrine system releases hormones to prepare the body for response.
B.The endocrine system increases breathing rate and blood flow.
C.The endocrine system gives a physiological reaction in response.
D.The endocrine system allows for movement in coordination with the muscles.​

Answers

Answer:

B

Explanation:

The endocrine system regulates oxygenation and blood perfusion.

A group of students used this diagram to classify three organisms into different kingdoms.
Multicellular
Cell wall
N No cell wall
Chloroplasts
No chloroplasts
No chloroplasts
2
3
Which table correctly identifies the three kingdoms?
A
Kingdom 1
Kingdom 2
Kingdom 3
Plantae
Fungi
Protista
с
Kingdom 1
Kingdom 2
Kingdom 3
Plantae
Fungi
Animalia
B
Kingdom 1
Kingdom 2
Kingdom 3
Fungi
Protista
Plantae
D
Kingdom 1
Kingdom 2
Kingdom 3
Animalia
Protista
Plantae

Answers

Answer:

option C

Explanation:

it fits the option well



3:Briefly describe in a paragraph your learning Online experience as a Science students.​

Answers

Answer:

i also don't know i am in 9 hahahaha

Answer:

               I honestly love it! Not only does online school give me more freedom to do my daily activities such as sports and cooking but it also reduces my in-person learning stress. With science specifically, I can create visual representations of the lesson/subject matter to help me better understand the question or item being taught. It can also be more difficult at times because you don't have a teacher that you can raise your hand for and get an immediate answer or help with your question as you would in a typical brick-and-mortar/physical school classroom.

Hope this helps and please leave me brainliest!

What might cause oxygen levels to drop?

Answers

Some of the most common causes of hypoxemia include: Heart conditions, including heart defects. Lung conditions such as asthma, emphysema, and bronchitis. Locations of high altitudes, where oxygen in the air is lower

The most common condition that can cause oxygen levels to drop are :

asthmaheart diseasessevere respiratory disease acute respiratory distress syndrome(ARDS)pneumoniasleep apnea - breathing interruptions during sleeplung diseases like bronchitis

what is hypoxemia?An abnormally low level of oxygen in the body is known as a condition hypoxemia.

some diseases and some environmental factors can cause oxygen level to drop below the normal level.

To know more about  causes of hypoxemia :

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Petroleum and Natural Gas form from which of the following?

A. Radioactive materials
B. Fossilized remains of plants
C. Fossilized remains of marine organisms
D. Elements found deep within the earth

Answers

Answer:

Fossilized remains of marine organisms

What are some
drawbacks of hydroelectric
plants?

Answers

Answer:

hydropower has the ability to generate electricity without emitting greenhouse gases. however it can also cause environmental and social threats such as damaged wildlife habitat, harmful water quality, obstructed fish migration and diminished recreational benefits of rivers.

what are 3 things needed for the formation of coal besides decayed living things?

Answers

Answer: Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.

Explanation:

Coal is produced from wood through decayed animals that burry down the earth and also start to deteriorate and behind millions of years they become coal.

How Coal is Formed?

When Coal is primarily carbon with varying portions of different elements; oxygen, sulfur, chiefly hydrogen, and also nitrogen. Coal is produced from wood through decayed animals that burry down the earth and also start to deteriorate and behind millions of years they become coal.Coal is assembled when destroyed plant consequence decays into peat and is transformed into coal by the heat and intimidation of profound burial over millions of years.

Find more information about Coal here:

https://brainly.com/question/26916778

This Is for today help!!

Answers

First one passive. Second one active. Third active. Fourth is active. Fifth active. 6 is active. Just remember if it is against concentration gradient or requires any kind of energy or ATP it is active.
I don’t know just need to answer a few questions

PLS HELP! THANK U :,)

Answers

Answer:

Yep C, seems like the most reasonable answer to the question.

help with this plz!!

Answers

Answer:

i think it might Be B. but im not 100% sure but it seems to be the only logical one

Explanation:

on average how many toes does a human have? I think I have too many (not in a test, just wondering)​

Answers

Answer:

10

Explanation:

we have 10 fingers and 10 toes

Answer:

10

Explanation:

We typicaly have 5 on the right foot and 5 on the left foot so 10 in total.

Hope that helps :)


1. Typically large organisms

Answers

Large organisms include...

Mammals (Mammalia)

Stem-mammals (Synapsida)

Reptiles (Reptilia)  

Dinosaurs (Dinosauria)

PLZ HELP
A deletion mutation causes three consecutive nucleotides to be removed from the
DNA code.
Which option describes the possible effect of this mutation?
Select one:

Three amino acids may not be present. The rest of the amino acids would be in the protein
in the correct order.

Five amino acids may not be present. The rest of the amino acids would be in the protein
in the correct order.

Two amino acids may not be present. The rest of the amino acids would be in the protein
in the correct order.

One amino acid may not be present. The rest of the amino acids would be in the protein in
the correct order.

Answers

I don’t know but you are loved by everyone remember that

The deletion mutation will cause one amino acid to be absent while coding for other protein in the correct order. Therefore, option (D) is correct.

What is deletion mutation?

By eliminating at least one nucleotide from a gene, a deletion modifies the DNA sequence. Larger deletions can eliminate a whole gene or a number of nearby genes, while smaller deletions just delete one or a few nucleotides from a gene. The function of the affected protein or proteins may change as a result of the deleted DNA.

An insertion or deletion, often known as a frameshift mutation, can alter every codon in a certain genetic sequence by upending the three by three codon structure as a whole. As an illustration, consider the following code, which stands for the amino acids aspartate, aspartate, serine, alanine, and arginine: GAU GAC UCC GCU AGG.

Learn more about deletion mutation, here:

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