iodine solution turns blue-black in the presence of starch. Did any of the onion cells contain starch?​

Answers

Answer 1

Answer:

This is prolly late but the cell wall I think

Explanation:


Related Questions

URGENT!!!
The Department of Agriculture manages Cooperative Extensions through what?
A.community centers
B.participating farms
C.land grant universities
D.national forests

Answers

Answer:

a or c

Explanation:

QUESTIONS:
1. The image below shows a small bean sprout. What does this sprout need to grow into a healthy plant?

A Fertilizer only
B. Water only
C. Light only
D Light and water

Answers

Answer:

D) Light and Water

Explanation:

Using energy from light, plants chemically combine carbon dioxide and water to create glucose and oxygen. This process is called photosynthesis. Plants also absorb oxygen gas from the air. Like animals, plants need oxygen to respire.

Help me on this please

Answers

Explanation:

A.

The transpiration stream that passes through a plant may follow an apoplastic route, with low resistance to flow, or a cell-to-cell route, in which cellular membranes impede water flow. However, passage of water through membranes can be facilitated by aquaporins thereby decreasing resistance. We investigated the relationship between transpiration, which can be down-regulated by abscisic acid (ABA) or by high humidity, and the osmotic water permeability (Pos) of protoplasts. By using leaf protoplasts of wild-type (wt) Arabidopsis thaliana plants and of mutants that are low in ABA (aba1) or insensitive to ABA (abi1 and abi2), we found that protoplasts from aba1 and abi mutants have very low Pos values compared with those from wt plants when the plants are grown at 45% relative humidity. High values of Pos were found 3 h after the addition of ABA to the culture medium of aba1 plants; addition of ABA to abi plants did not restore the Pos to wt levels. There was no such increase in Pos when excised leaves of aba1 plants were treated with ABA. When the transpiration stream was attenuated by growing the plants at 85% relative humidity, the Pos of protoplasts from all plants (wt and mutants) was higher. We suggest that attenuation of the transpiration stream in whole plants is required for the up-regulation of the Pos of the membranes, and that this up-regulation, which does not require ABA, is mediated by the activation of aquaporins in the plasma membrane.

B.

The influence of abscisic acid (ABA) on carbon metabolism, rate of photorespiration, and the activity of the photorespiratory enzymes ribulose bisphosphate oxygenase and glycolate oxidase in 7-day-old barley seedlings (Hordeum vulgare L. var. Alfa) was investigated. Plants treated with ABA had enhanced incorporation of labeled carbon from 14CO2 into glycolic acid, glycine, and serine, while 14C incorporation into 3-phosphoglyceric acid and sugarphosphate esters was depressed. Parallel with this effect, treated plants showed a rise in activity of RuBP oxygenase and glycolic acid oxidase. The rate of photorespiration was increased twofold by ABA treatment at molar while the CO2-compensation point increased 46% and stomatal resistance increased more than twofold over control plants.

Fruit Fly Eye Color (sex-linked): Red Eye (Dominant - R), White Eye (Recessive - r): How many female fruit fly offspring
would be expected to have white eyes from the following cross? Parents: White Eye Female x Red Eye Male
A.) 0%
B.) 25%
C. 50%

Answers

25% I think
Good luck

Please help me I really need help I am having a hard time with this question.

Answers

Answer:

I would prefer to have city water because you don't have to worry about it getting polluted unlike well water. The city water is maintained by the city while with the well water, you maintain it yourself. Even though it can be pricey, most people live in the city anyway, so there is easier access to it.

Explanation:

Answer:

Well Water

Explanation:

I would prefer well water, because city water had a lot of chemicals, and city water filters out minerals that are good for the body. Also, well water tastes ten times fresher than city water. Also, well water is easy to obtain if you already have a well, all you have to do is wither pump it up, or use a basket to scoop some out.

Please help!!! I don't know how to tell if they self pollinate or not.

Answers

Answer:

The first flower can self pollinate because it is open, so the wind will pollinate it.

Explanation: Flower b will not self pollinate because it is not open, so it will not pollinate until a bird or moose or any other animal comes and eats it, then poops it out, so the seeds get planted.

PLEASE HELP
How are isobars used by meteorologists?

Answers

Answer:

Isobars are lines of constant or equal pressure on a weather map. They can be used to find areas of low or high pressure over a broad area (like the U.S.), and they can tell us how intense the system may be.

Explanation:

Which describes the correct pairing of DNA bases?
A. C with C, and G with G
O B. C with T, and G with A
O c. C with A, and G with T
O D. C with G, and A with T

Answers

The correct pairing of DNA bases is D. C with G, and A with T. Thus, option "D" is correct.

What is DNA replication?

DNA replication is a process of the formation of two molecules of DNA from a single DNA molecule (which is double-stranded).

In this process, the two DNA strands of the original DNA are first separated so that the template strands are exposed.

Thus, option "D" is correct.

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The correct pairing of DNA bases is C with G, and A with T. Therefore option D is correct.

DNA (deoxyribonucleic acid) is composed of nucleotides, which are made up of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base. The four nitrogenous bases found in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).

In DNA, the bases always pair up in a specific way known as complementary base pairing. The bases adenine (A) and thymine (T) form a pair, and cytosine (C) and guanine (G) form a pair.

This pairing is based on the specific hydrogen bonding interactions between the bases:

Adenine (A) always pairs with thymine (T) through two hydrogen bonds.

Cytosine (C) always pairs with guanine (G) through three hydrogen bonds.

This specific pairing of bases is crucial for DNA replication and the accurate transmission of genetic information during cell division and protein synthesis.

The pairing of DNA bases: (D) C with G, and A with T. This pairing reflects the complementary base pairing rules observed in DNA.

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what cell can only produce cells like itself

Answers

Answer:

Adult stem cells, like all stem cells, share at least two characteristics. First, they can make identical copies of themselves for long periods of time; this ability to proliferate is referred to as long-term self-renewal.

PLEASE HELP THIS IS DUE TODAY!!!!!!!!!!!!!!!!!!


You worked on Earthquake Engineering Design Challenge during the last three parts. Please upload your S.T.E.M. Lab Earthquake Engineering Design Challenge worksheet. Make sure that you have answered all parts for Steps 1–13 and your work is shown on the worksheet and double check your work. When you are sure that you have answered all of the Steps accurately, please upload your worksheet.


30 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!

I WILL MARK BRAINLEST!!!!!!!!!!!!!!!!!

Answers

Answer:

its easy just read it

Explanation:

and can someone give me branliest so I can rank up please

I need 5 in total

Explain why parallax was a problem in proving the heliocentric model of the solar system.

Answers

Yes that’s right absolutely

Copernicus himself asserted that the absence of parallax meant that the stars were far beyond the planets. The failure of heliocentrists to detect it proved nothing, whereas a successful detection would be strong evidence for heliocentrism.

What is heliocentric model?

The astronomical model in which the Earth as well as planets revolve around the Sun at the center of the universe is known as heliocentrism. Historically, heliocentrism was opposition to geocentrism, which centered on the Earth.

Galileo wanted to believe that his new invention, the astronomical telescope, could assist him in proving that the Sun was the center of our solar system and that Earth was only one of many planets orbiting our star.

Copernicus himself claimed that the lack of parallax indicated that the stars were far beyond the planets.

Failure to detect it by heliocentrists proved nothing, whereas successful detection would be strong evidence for heliocentrism.

Thus, parallax was a problem in proving the heliocentric model of the solar system.

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Which of the following best describes the process of protein synthesis?
Group of answer choices

Amino acids are translated from mRNA, then mRNA is transcribed back into DNA

DNA is transcribed into mRNA, then mRNA leaves the nucleus to go to the ribosomes for translation

mRNA stays in the nucleus, which is where DNA is transcribed into amino acids. The amino acid then go to the ribosome to build proteins.

DNA leaves the nucleus through transcription and goes to the ribosome, where it is translated into amino acids

Answers

Id say the last one, but I’m not entirely sure

What is a variation of giraffes

Answers

Answer:

Actually, what we thought of as a “giraffe” is four different species. ... They've since renamed them, very creatively spinning off on the giraffe theme: the Masai giraffe, the reticulated giraffe, the southern giraffe, and the northern giraffe

Explanation:

Answer:

Actually, what we thought of as a “giraffe” is four different species. ... They've since renamed them, very creatively spinning off on the giraffe theme: the Masai giraffe, the reticulated giraffe, the southern giraffe, and the northern giraffe.Sep 9, 2016

Explanation:

there

PLEASE HELP DUE TOMORROW!

what are the advantages of harvesting more crops and trees to reducing carbon emissions?

And what are disadvantages of harvesting tree and crops for reducing carbon emissions?

Answers

Answer:

the advantage is free more space to plant crops and farm animals and build houses

the disadvantage is destroying the animal environment and may cause climate change and killing an endangered species by destroying there houses or by accident

Answer:

As trees grow, they help stop climate change by removing carbon dioxide from the air, storing carbon in the trees and soil, and releasing oxygen into the atmosphere and more space.

The feature of a map that relates a distance on the map to a distance on Earth's surface is called the
A scale.
B. symbol.
C. degree
D. prime meridian

Answers

Answer:

scale

Explanation:

The scale will usually tell how many miles an inch represents, or how many kilometers a centimeter represents.

Scale is the answer.

Which represents solar energy?

Answers

Answer:

A I guess... :D

The ice cubes represents the solar energy.

What is Solar energy?

Solar energy is the radiant heat and light from the Sun that is captured by a variety of technologies, including solar architecture, solar thermal energy (including solar water heating), and solar power to produce electricity.

It is a crucial source of renewable energy, and depending on how solar energy is captured, distributed, or transformed into solar power, its technologies are often classified as passive solar or active solar. Utilizing photovoltaic systems, concentrated solar electricity.

A building's orientation toward the Sun, the use of materials with favorable thermal mass or light-dispersing qualities, and the creation of naturally ventilated rooms are all examples of passive solar approaches.

Therefore, The ice cubes represents the solar energy.

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help me with the picture

Answers

Answer:

I think it is D

Explanation:

Answer:

c or b good luck girl or men

Explanation:

what cell transports materials through a cell​

Answers

Answer:

endoplasmic reticulum

Explanation:

Help plz I’m doing a lot of work rn and I don’t have enough time to complete this 40pts!!!

Answers

Answer:

I cant see most of the words

Explanation:

Is this organelle more likely to be found in animal cells or plant cells

Answers

more likely to be found in plant cells
plant cells, chloroplast isnt found in animal cells i believe

describe how cell structures and organelles interact systemically to maintain or restore homeostasis in the body​

Answers

Each organelle, in a cell, works with all of the other organelles to maintain balance, or homeostasis. The organelles have specific functions such as the mitochondria, which create energy, and the ribosome, which translates RNA into proteins. Because these cells work together, the body is able to maintain homeostasis.

The order of building blocks in a strand of DNA makes up a “_____________________.”

Answers

Answer:

DNA is made up of nucleic acids. Bases adenine, guanine, thymine, and cytosine are then added in. They make different combinations, or sequences.

Explanation:

What object revolves around Earth and is made of rock?
Galaxy
Moon
Planet
Sun

Answers

Answer:

moon

Explanation:

a moon is made of rock and revoles around earth

Answer:

moon

Explanation:

moon moon moon if its corect say thanks

Differentiate between the three dose-response curves, and explain why these curves do not apply to individuals.

Answers

Answer:

LD-50: lethal dose 50%, dosage that causes death to 50% of the exposed population

ED-50: effective dose 50%, dosage that causes an effect in 50% of the observed subjects

TD-50: toxic dose 50%, dosage that is toxic to 50% of the observed subjects

These curves do not apply to individuals because it is hard to predict the dosage that will cause a response in an individual, and more practical to predict what percentage of a population will be affected by a certain dosage of a chemical.

Explanation:

11. What genetic syndrome is shown in this picture?*

Answers

Answer:

As per I know...

it's Down's syndrome..

Did y'all know grapes r toxic to doggos? Like how did I not know this? *~*

Answers

Answer:

lol yes

Explanation:

i knew. usually sweet things are

Yes I knew this lol

Need help in the hypothesis part!

Answers

if models let scientists see what could happens to earths climate then when we input different rates of CO2 in the future the model should be able to calculate the futures averages global temperature

How can climate change be reduced? How can climate change be fixed? Is there any evidence for us to see that climate change has been affecting us?

Answers

Answer:

We can easily reduce and fix climate change by Using less greenhouse gasses and by switching to all electric. Unfortunately global warming has started to affect us in ways such as extreme weather, wildfires and even Global warming has shown to cause infectious diseases to spread more rapidly.

Hope this helps

Dropdown
Choose the option that best matches the description given.

Selena was racing her quarter-horse against Jolene, who was also her rival for Sean's affections. Jolene was starting to overtake Selena. Trying to slow down the competition, Selena waved her riding crop in the air, intending to just tap Jolene on the shoulder. Instead, the strap lashed across Jolene's face, causing a huge welt.
battery
intentional infliction
assault

Answers

intentional infliction?


Based on the data provided, which of the following descriptions best identifies the types of
farms that are being compared?
Select one:
O a. Farm A is a free pasture farm for cattle, whereas Farm B is a free-range farm for poultry.
O b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.
O c. Farm A is a grass-fed pasture for beef production, whereas Farm B is a traditional
concentrated animal feedlot for cattle.
ction, whereas Farm B is a cage
O d. Farm A is a concentrated animal feedlot for beef
free farm for poultry.

Answers

Answer:

b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.

Explanation: the average days in any 12-month period suggest that farm b cages while farm a does not. The antibiotic usages for farm b also suggest it is an industrial (caged) farm because most cage-free and non-industrial farms do not rely on heavy use of antibodies.

The Farm A is a cage-free poultry farm while Farm B is an industrial poultry  farm.

Farm A:

The caged day are zero means all birds can move freely in the farm area.They are not eat antibiotics to avoid infection.

Farm B:

Most of the time in year, birds are caged. They fed antibiotic to all to avoid infection in the cage.

Therefore, the Farm A is a cage-free poultry farm while Farm B is an industrial poultry  farm.

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