meaning of onion epidermal cell​

Answers

Answer 1

Answer:

Outermost layer

Explanation:

Onion epidermal cells act as a barrier against infections and fungus that might injure the delicate tissues. Onion epidermal cells  are frequently used to educate children to botanical anatomy or to explain plasmolysis due to their simple and basic structure and transparency.Onion epidermal cells is used for cover onion from weather  too.


Related Questions

what caused the earth to separate into layers

Answers

Answer:

When the inside of the Earth was liquid, gravity caused the heavier elements nickel and iron to sink to the center. Lighter elements floated to the surface. Over time this process caused the Earth to separate into layers.

Explanation:

The prefix "homo-" means what?
A. Same

B. Different

Answers

Answer:

A) same

Explanation:

Homo- is the same and hetero- is different .

Hope this helped :)

A. Same
A is the answer

help please
answer these questions and give the reasoning

Answers

Answer:

can i see the question plz so that I can help you

pleeaasee help me its about plants and i dont know how do itttt

Answers

Petunia = perennial

Fescue grass = perennial

carrots = biennial

sweet corn = annual

tomato = annual

blueberry = perennial

cabbage = biennial

zinnia = annual

sugar maple = ??

blue spruce = annual

ur welcome xx

The guy above did a good job those are the answers

Which is not a major reservoir of carbon?
O rivers and lakes
O oceans
O living things
O fossil fuels

Answers

Answer:

i think its fossil fuels but dont dont quote me on that

in which country green rain fell upon?​

Answers

Answer:

In India ,Kolkata green rain fell.

I hope it helps

have a great day

[tex]#Liliflim[/tex]

Answer:

The country in which green rain fell upon is

India.(kolkatta)

Explain the difference in How the tree and the fox get carbohydrates to use for energy

Answers

Hey Hey!

Hmm... This seems to be a simple questions. Plants/trees actually make their own carbohydrates through photosynthesis. A fox simply eats food and that is their carbohydrate source. Please mark brianliest<3!

Help Brainliest to anyone who answers me ASAP!!!
Which scenario is an example of a negative feedback loop?
A.
When body temperature increases, sweat is produced as a cooling agent to lower body temperature.
B.
In some parts of the world, birth rates are far exceeding death rates, which has led to overpopulation.
C.
Ice reflects sunlight much better than water. A warmer atmosphere is turning ice to water, which is absorbing more of the Sun’s energy.
D.
A warmer atmosphere is leading to warmer oceans. A warm ocean releases more carbon dioxide, which traps more heat in Earth’s atmosphere.

Answers

Answer:

A)

Explanation:

Question has been asked before so I know the answer.

What are substances that make the plant body erect?

Answers

Answer:

The root system, which supports the plants and absorbs water and minerals, is usually underground. The organ systems of a typical plant are illustrated below. The shoot system of a plant consists of leaves, stems, flowers, and fruits. The root system anchors the plant while absorbing water and minerals from the soil.

Radio telescopes measure the galaxy’s distribution of _____.


hydrogen from which stars are formed


X-rays given off by black holes


photons from the sun


dust ejected from asteroid impacts on other planets

Answers

Explanation:

Hydrogen from which stars are formed

hi! can someone help with this question?

"Why is the nitrogen cycle essential to plant and animal life?"

Answers

Answer:

Plants and animals could not live without nitrogen. It is an important part of many cells and processes such as amino acids, proteins, and even our DNA. It is also needed to make chlorophyll in plants, which plants use in photosynthesis to make their food and energy

How does mining impact the enviorment

Answers

Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.

Answer:

Mine exploration, construction, operation, and maintenance may result in land-use change, and may have associated negative impacts on environments, including deforestation, erosion, contamination and alteration of soil profiles, contamination of local streams and wetlands, and an increase in noise level, dust

What is a mutation?

A. A change that occurs in RNA only

B. A change that occurs in DNA only

C. A change that occurs in DNA or RNA

Answers

[tex]\huge\colorbox{purple}A\colorbox{blue}n\colorbox{purple}s\colorbox{blue}w\colorbox{purple}e\colorbox{blue}r [/tex]

[tex]\color{Violet}\rm{Heree!}[/tex]

For me the answer is letter B.

hope it's help✨

__________________________________

“‘The mountains may shift, and the hills may be shaken, but my faithful love won’t shift from you, and my covenant of peace won’t be shaken,’ says the Lord, the one who pities you.” — Isaiah 54:10 ❤

__________________________________

Answer:

C. A change that occurs in DNA or RNA

Explanation:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

Which stage is the dominant stage in mosses?

A. Sporophyte
B. Spores
C. Gametophyte
D. Gametes

Answers

Answer:

The answer is Gametophyte

Explanation: Hope this helps and gl :) mark as brainliest if u want :)

The haploid (gametophyte) stage

Scientists often look for similar genes in very dissimilar organisms as evidence that they are related.
O True
False

Answers

Answer:

True

Explanation:

What’s an opinion you have about genetic testing?

Answers

Answer:

Genetic testing is useful in many areas of medicine and can change the medical care you or your family member receives. For example, genetic testing can provide a diagnosis for a genetic condition such as Fragile X or information about your risk to develop cancer. There are many different kinds of genetic tests

Earth scientists have concluded that the methods of harnessing energy that have been used over the past two centuries, such as the burning of fossil fuels, are causing climates around the world to change more quickly and suddenly than ever before in human history. Evidence includes increased air temperatures, rising sea levels, and the shrinking of glaciers in Greenland, Alaska, and other regions of Earth. The most complex level of organizational hierarchy that climate change could potentially affect is Earth’s
biosphere.
communities.
organisms.
populations.

Answers

The most complex level of organizational hierarchy that climate change could potentially affect is Earth's biosphere.

What is biosphere?

The biosphere refers to the global ecological system that encompasses all living organisms and their interactions with the physical environment. It includes various interconnected ecosystems, such as forests, oceans, grasslands, and deserts, along with the diverse array of species and their habitats.

Climate change, with its wide-ranging impacts on temperature, precipitation patterns, and other environmental factors, can disrupt ecosystems and alter the distribution and abundance of species within the biosphere. These changes can have cascading effects on communities of organisms, populations of species, and the overall functioning of ecosystems. Therefore, the biosphere represents the highest level of organization that climate change can potentially impact.

Learn more about biosphere, here:

https://brainly.com/question/20531374

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hey i would really appreciate if someone helps me out
1. Why should we care that the panthera tigris is going extinct? Explain how humans might be affected by the loss of the panthera tigris.

Answers

Answer: I believe tigers, also known as "Panthera tigris" are important to humans because they balance the ecosystem. When creatures go extinct they leave behind a scar that affects the ecosystem that is around them. Since Tigers are secondary consumers they control natural prey populations. The connection to the food web is very important and essential to keep this food web stable. Once something goes extinct it will cause the food web to shift and some primary producers will go out of control.

Explanation: Not sure if this helped at all this is just what I know about the food web. Panthera Tigris are secondry consumers so they control the primary producer population. This is just basic food web and ecosystem thinking. This is how they impact humans if they go extinct.

A multicellular organism. Define multicellularity and explain how you know this organism is multicellular.

Answers

Answer:

A multicelular organism

Explanation:

You can tell an organism is multicellular because it contains more than one cell. It has many cells that help build the organism.

how many molecules of DNA would result from one molecule after five cycles of PCR?

Answers

PCR is responsible for the doubling of molecules of DNA replication. Therefore, after five cycles the result will be V power of 2. Therefore, the correct answer is 32.

The Pearson Correlation Coefficient is a tool used in understanding the behavior of gene expression. A positive ratio means a gene is induced in cancer cells and is transcribed at a higher rate. A negative ratio means a gene is suppressed in cancer cells or is transcribed less frequently than in normal cells. What form of gene expression do you think would lead to a correlation coefficient of one

Answers

Answer:

the gene is being expressed at an equal rate in both cell types

Explanation:

In statistics, the Pearson correlation is a linear measure of the association between two continuous variables. The Pearson's Correlation Coefficient may exhibit values between -1 and +1. A value equal to 1 shows a perfect correlation, indicating that when one variable increases the second variable also increases (when this value is +1) or decreases (when this value is -1). Moreover, when the Correlation Coefficient is equal to 0 it means that there is no correlation.

where does osmosis take place

Answers

Answer:

In Gastrointestinal system:

When we eat food or drink water, it travels from our mouth, down our oesophagus and into our stomach. In the stomach, the food is broken into tiny pieces that are mixed with stomach liquids. This mush of food and stomach liquids is called chyme. The chyme travels into the small intestine. This is where osmosis takes place.

In our Kidneys:

Our kidneys keep blood and tissue fluid (internal environment) 'clean' by removing urea, excess water and other wastes and excreting them. This controls the amounts of dissolved substances in blood and tissue fluid, a process called osmoregulation. If tissue fluid becomes too concentrated, cells will lose water by osmosis and become dehydrated and if it becomes too dilute, cells will take in excess water by osmosis.

Is photosynthesis the ONLY driver for cycling matter and energy in ecosystems? yes or no
Do not play on my question please.

Answers

the answer to this question is yes

water is warmers by the sun and ?

Answers

Answer:and then it evaporates into the atmosphere

Explanation:

Explain how the formation of a submergent coastline differs from the formation of an emergent
coastline.

Answers

Answer:

One occurs when sea level rises whereas the other happens when the sea level drops.

Explanation:

The main difference between Submergent coastlines and emergent coastlines because Submergent coastlines formed when sea level rises or in other words, the land sinks down. Examples of submergent coastlines are estuaries, barrier bars, and barrier island systems while on the other hand, emergent coastlines occurs when sea level drops or the land rises. Hudson Bay and Eastern Coastal Plains are the examples of emergent coastlines.

Which example below is a concern related to nuclear energy?

long-term storage of waste

supplemental energy may be needed if weather is not ideal for energy collection

can be unsightly and/or noisy

potential for floods

Answers

Answer:

C. can be unsightly and/or noisy

Explanation:

Answers A, B, and D correspond with fossil fuels (fracking, coal/gas mines), wind/environmentally-powered energy (turbines), and hydroelectric power (dams).

"Noisy" and "unsightly" are the most accurate descriptions of the nuclear energy process.

If this helped you, I'd appreciate Brainliest! <3 TY

Which of the following is definitely true about the kingdom, Protista.
A. They always have a cell wall

B. They always have a nucleus

C. They are always unicellular

D. They are always heterotrophs

Answers

Answer:

B. They always have a nucleus

Explanation:

The organisms belonging to kingdom Protista are single-celled- means they are unicellular and they have a well-defined nucleus enclosed in a nuclear membrane. Hence, they are eukaryotes. So the correct option is B.

Answer:

B. They always have a nucleus

Explanation:

Protista always has a nucleus. So, option (B) is the correct answer.

Which of the following describes an adaptation that relates to reproduction?
A. Hawks have sharp beak to help them quickly catch their prey
B. Elks attach leaves and grasses to their antlers to help them appear larger
C. Polar bears have white fur to help them blend into their surrounding
environment
D. Whales have a thick layer of fat called blubber to help keep them warm

Answers

Answer:

B. Elks attatch leaves and grasses to their antlers to help them appear larger.

Explanation:

Reason 1: If the Elk appears larger other male Elks would be too scared to fight that Elk for a female. Reason 2: The female Elk will be more attracted to the larger male Elk even if it's largeness is fake.

Which of the following best explains how meiosis, followed by fertilization, ensures genetic variation?

Answers

Answer:

Having two phases of meiosis allow for more unique cells to be produced. Meiosis is a form of asexual reproduction which leads to more genetic variation. Meiosis produces 4 haploid daughter cells which all contain identical DNA segments.

Explanation:

hope this helps  if not I'm sorry

which gland will need to produce hormone after eating banana?

A. pituitary gland

B. thyroid

C. adrenal glands

D. Pancreas​

Answers

Answer:

thyroid

Explanation:

Right after we eat a sugary meal, the glucose levels in our blood begin to rise. Conversely, if we haven't eaten for a couple of hours our blood glucose levels begin to drop. Our body has a mechanism whereby it maintains blood glucose levels.

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