Explain how you can find dividing cells in the onion root tip? (What is a key thing to look for?)

Answers

Answer 1

Answer:These regions of growth are good for studying the cell cycle because at any given time, you can find cells that are undergoing mitosis. In order to examine cells in the tip of an onion root, a thin slice of the root is placed onto a microscope slide and stained so the chromosomes will be visible. Root tips of onion are used because the cells there are actively growing and dividing, giving a good chance to see chromosomes during different stages of cell division.

Explanation:


Related Questions

What happened to the biodiversity of a managed ebony forest as human population increased?
A) Biodiversity increased.
B) Biodiversity decreased.
C) Biodiversity remained the same.

Answers

Option B is the answer I guess

The increase in human population will lead to decrease in biodiversity. This is because as the human population increases they need more resources. Thus, the correct option is B.

What is Biodiversity?

Biodiversity is the total number of living organisms present in a particular area. The biodiversity of an area is dependent upon a number of factors like habitat, competition among species, resources, and climatic conditions. Usually, there are three types of biodiversity which include genetic, species, and ecosystem diversity.

The increase in human population in an area creates a problem for the biodiversity because with the increase in population comes a need to convert natural habitats to land for human consumption and shelter.

Therefore, the correct option is B.

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Edge habitat
Which of the following will most likely happen when a road is built through the middle of the terrestrial ecosystem?

Answers

Answer:

the correct answer would be c

Explanation:

the species would move away from the road but some well stay but most well move to the edge habitat

what part of Arkansas are the crops grown?

Answers

The production of these crops is centered in the eastern third of the state but there are notable concentrations elsewhere, particularly in the river valleys of the Arkansas River (central Arkansas) and the Red River (southwest Arkansas).

Why is the find of the Chilesaurus important in understanding the evolutionary lineage of theropods?

Answers

Answer:Scientists once believed that all theropods were carnivores. However, recent research showed that some theropods evolved to eat plants. The fossil indicates that the new species of dinosaurs evolved to eat plants earlier than some of the other theropods. So, this new species may help scientists piece together an evolutionary lineage of theropods that ate plants.

Explanation:

this is the edmentum answer so i suggest u reword it oki hope this helps and have a great life

Answer:

All Scientists believed that all theropods were carnivores.but after recent research showed that some theropods evolved to eat plants. The fossil they found shows that the new species of dinosaurs evolved to eat plants earlier than some of the other theropods. So, this new species can help scientists piece together an evolutionary lineage of the theropods that ate plants.

i rephrased it a little but you can rephrase it more if you want

9. Why don't the seasons change in the Carribean?

Answers

Answer:

because it is near the equater so it is in a warmer climate

Explanation:

Why is it commonly believed that carbon dioxide is responsible for global warming?
1.Carbon dioxide levels in the Earth’s atmosphere have been steadily decreasing.

2.Carbon dioxide has a longer average lifetime in the atmosphere.

3.The warming effect associated with carbon dioxide has remained unchanged.

4.Other greenhouse gases amplify the effect of carbon dioxide.

Answers

Answer:

2. Carbon dioxide has a longer average lifetime in the atmosphere.

Explanation:

I do not personally believe carbon dioxide is the cause of warming as it takes up less than 1% of the atmosphere but I am giving you this answer because I have seen this question before and this is what the book deemed was the "correct" answer,

Which of the following best describes the structure of the cell membrane?​

Answers

i believe it is a or d

Which of the following describes the functions of the pancreas? (2 points)

I. It helps with digestion
II. It filters the blood
III. It produces insulin

Answers

1. it helps with digestion

Explain how selective breeding is being used to
try to produce commercial peanuts that will not
cause allergic reactions in people.

Answers

Answer:

by bringing the peanuts that lack the allergic reaction proteins

Selective breeding is being used to produce commercial peanuts that will not cause allergic reactions in people by focusing on specific traits related to allergenicity.

The goal is to identify and breed peanut varieties that have reduced levels of allergenic proteins, particularly those known to trigger allergic responses in individuals.

The process involves selecting and breeding peanuts that exhibit low allergenic potential or lack specific allergenic proteins. This is typically done through extensive screening and testing of different peanut varieties to determine their allergenicity.

Peanuts with lower levels of allergenic proteins or novel varieties that lack specific allergenic proteins are favored for further breeding.

The selective breeding process then involves cross-breeding these selected peanuts to produce offspring with reduced allergenic potential. The offspring are evaluated for their allergenicity through laboratory testing and human trials, where allergic individuals are monitored for adverse reactions.

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4. How does photosynthesis relate to cell respiration?

Answers

Photosynthesis produces glucose and oxygen from the carbon dioxide and water in the air so when respiration is done, the glucose is used as a reactant and for energy for the respiration to complete.

Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the first organisms to start the chain of events leading to a livable biosphere or ecosystem. Why is a lichen most likely to be a pioneer species?

A The mutualistic relationship of species forming a lichen allows it to survive independently.

B The lichen is fast growing and provides a nutritious food source for many other species.

C The lichen does not require sunlight to survive.

D The lichen is a decomposer that digests rocks and forms soil.​

Answers

Answer: D

Explanation: Bc

Identify the structure shown below.

Answers

Answer:

I want to say gastrula

Explanation:

PLEASE ANSWER WITH CLEAR AND CORRECT EXPLANATION!!
HELP
DUE: IN 35 MINUTES

Answers

Answer:

5 fats

Explanation:

who is right and why

Answers

Answer:

Alex seems most correct

Explanation:

An antihistamine can​

Answers

Answer:

Decrease nasal congestion

Explanation:

they help with allergies

Helpp pwzz i need help :DDD

Answers

Answer:

C) and E)

Explanation:

A), B), and D) would lead to a decrease in bison,

Fossils are the preserved remains or traces of plants and animals that have lived on Earth throughout Earth's history. How does the fossil record of animals compare to animals that exist today

Answers

Answer:

Fossilized animals are ancestors of animals that exist today

Explanation:

A fossil is a preserved remain or trace of an organism (e.g., an animal) in a sedimentary rock which lived in a past geological age. Moreover, a fossil record is a group of fossils that are arranged chronologically and/or in taxonomic order. The fossil record provides direct evidence of extinct organisms and shows the progression of the evolution of organisms (from ancestors to descendants) over millions of years. In consequence, the fossils from recent geological periods are more similar to organisms living on Earth today.

White blood cells is also known as​

Answers

White blood cells are also known as “leukocytes” .

Answer:

White blood cells are also called leukocytes. They protect you against illness and disease.

Explanation:

Hope that helps

can I have brainliest

1
What is the major difference between prokaryotic and
eukaryotic cells?

А
Prokaryotic cells have no genetic material; eukaryotic cells
do

B
Prokaryotic cells engage in photosynthesis; eukaryotic
cells don't

C
Prokaryotic cells have no membranes around their nuclear
material; eukaryotic cells do

D
Prokaryotic cells can move on their own; eukaryotic cells
can't

Answers

There are several differences between the two, but the biggest distinction between them is that
—————————————————————
eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.

Answer:

the answer is a

Explanation:

I did the same assignment as well

Hope this helped ;)

1) What is the primary purpose of a cell's
plasma membrane?

Answers

The plasma membrane, or the cell membrane, provides protection for a cell.

he hurt u I to passive voice​

Answers

.......................IIok

A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little poptidoglycan. This bacterium's ability to survive in a human who is taking penicillin pills may be due to the presence of
A) gram-negative cell wall
B) peptidoglycan in the cell wall
C) lipopolysaccharides in the cytoplasm
D) long polypeptides in the cell wall

Answers

Answer:

the correct answer would be b

Explanation:

No links please :(
If there are 21,000 Joules (J) of energy available to the producers, how much energy will be transferred to the next trophic level?

Answers

Answer:

If 10,000 joules of energy is available to the producer, then only 1000 joules of energy will be available to the primary consumer and only 100 joules of energy will be available to the secondary consumer.

plz mark as brainliest!!!!!

anyone know the phylum name for horsetail?

Answers

Phylum name for horsetail : Sphenophyta

Phylum Name of Horsetail: Equisetum

List various ways that humans impact the environment and change the ecosystems in which they live. Include your explanation how this can impact the population of animals that live in these ecosystems.

Answers

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Explanation:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

how many neutrons does this atom of argon have?

Answers

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

22

The atom of Argon has 22 neutrons.

Thanks ☺️☺️

Which of the following is a secondary consumer in the food web shown above?
A. tadpole
B. frog
C. earthworm
D. algae

Answers

Hello! Greetings from Turkey!

Answer: B

Because The frog is the secondary consumer.

Explanation: The ant that eats the grass is the primary consumer. The frog that eats the ant is the secondary consumer.

                                                                             GOOD LUCK! :)

what is the mass in grams of 300 ml of salt water with a density of 1.30 g/cm3

Answers

Answer:

The mass of salt water is 390 grams

Explanation:

To calculate the mass of salt water, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}Density of substance=

Volume of substance

Mass of substance

Density of salt water = 1.30g/cm^31.30g/cm

3

Volume of salt water = 300 mL = 300cm^3300cm

3

(Conversion factor: 1mL=1cm^31mL=1cm

3

)

Putting values in above equation, we get:

\begin{gathered}1.30g/cm^3=\frac{\text{Mass of salt water}}{300cm^3}\\\\\text{Mass of salt water}=(1.30g/cm^3\times 300cm^3)=390g\end{gathered}

1.30g/cm

3

=

300cm

3

Mass of salt water

Mass of salt water=(1.30g/cm

3

×300cm

3

)=390g

Hence, the mass of salt water is 390 grams

Answer: 390 grams

Explanation: You should use an equation to get this answer.

Hope I could help! brainlist?plz

Can someone please look at the picture and help me?!

Answers

Answer:

B. Hom*zygous with red leaves

Explanation:

It is hom*zygous because it’s the same alleles (B and b are the different alleles).

the dominant trait always takes priority over the recessive trait. So for example:

BB - hom*zygous with brown leaves

Bb - heterozygous (because different alleles) with brown leaves

bb - hom*zygous with red leaves

(* = o ; brainly thought I was saying something offensive)

What is the correct sequence of steps in the cell cycle?

Answers

Answer should be B. Hope that helps.
Other Questions
Each _________________________________ is characterized by a pattern of temperature and other weather trends. Question 20 (3 points)Which decision by the U.S. Supreme Court supported segregation in the Southfollowing Reconstruction?McLean v. ArkansasBrown v. Board of Education of Topeka, KansasPlessy v. FergusonDred Scott v. Sandford in the case of Worcester v. Georgia, the Supreme Court ruled that the Cherokee were "a sovereign nation that should be allowed to rule themselves." however, president Andrew Jackson refused to enforce the ruling. what was the result? One angle measures x and its complement measures (x + 78) find the base of a traingle with area 20dm and height 12 1/2dm HELP I NEED HELP ASAPHELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP Which type of elements listed are generally more reactive than the others? What does weathering do? 2. What does erosion do? 3. What is physical weathering? 4. what are 3 examples of physical weathering? 5. What is chemical weathering? 6. What are 2 examples of chemical weathering? 7. What is biological weathering? 8. What are 3 examples of biological weathering? What is a serenade?A. Seventeenth century solo songB. Seventeenth century chamber musicC. Eighteenth century music meant to be played in the eveningO D. Eighteenth century music meant to be played for a small audienceSUBMIT Consider the following graph of f(x) what are the zeros Suppose a firm is considering investing in a new product line which they expect to be obsolete in 5 years. They will need an initial investment in inventory of 540,000. They will also need inventory investment of 95,000 each year of the project. The firm expects to recover the full amount of the investment in NWC at the end of the project. What is their NWC in year 5 Select all expressions that are equivalent to 4(y + 2).A 4y + 2B4y + 8Cy+y + y + y +2D 5(y +2) (y + 2)Ey + y + y + y + 2+2+2+2F.5(y + 2) - (y 2) Describe Indias geographic relationship to Asia.The north pole of a bar magnet is moved close to the north pole of a second bar magnet. What prediction best describes how the first magnet responds when it is released?It will move toward the second magnet because like poles repel.It will move toward the second magnet because like poles attract.It will move away from the second magnet because like poles repel.It will move away from the second magnet because like poles attract. Find the length of the missing side A 50 foot ladder is set against the side of a house so that it reaches up 48 feet. If Shaniece grabs the ladder at its base and pulls it 10 feet farther from the house, how far up the side of the house will the ladder reach now? Round to the nearest tenth of a foot. Use the Distributive Property to evaluate (6+4)(-12) * A customer left an 18% gratuity of $27. What was the amount of the bill? $27.18 $43.00 $150.00 $486.00 Which reason best completes this list?To spread democratic idealsTo improve efficiency in manufacturing To locate potential military alliesTo claim new territory what is a reflection?A. when the author introduces a new character to the narrativeB. when a character looks back and comments on the events and experiences from the narrativeC. when an author poses a thought-provoking question to the readerD. when a character offers a resolution to a problem described earlier in the narrative Which of the following was a short-lived Italian art movement that rejected political and artistic traditions while embracing youth, speed, technology, industry, and violence?1. Regionalism2. Kinetic Art3. Fauvism4. Futurism