Explain why a leaf kept in the light for 24 hours will turn an iodine solution blue-black, whereas a leaf kept in light for 24 hours and then in the dark for 24 hours will have no effect on an iodine solution

Answers

Answer 1

Answer:

The leaf kept in the light will turn blue-black because of the presence of starch after photosynthesizing. The leaf in the dark could not photosynthesize, which would not create starch so the iodine solution will have no effect.

Explanation:

Iodine stains a blue black in the presence of starch


Related Questions

Question 3 of 5 Which object is at the center of the solar system in the geocentric model? A. Earth B. The Moon C. The Sun D. A group of stars

Answers

Answer:

c?

Explanation:

.........................

...

.......

Answer:

the answer is A.

Explanation:

will you please give me brainlest

is the statement true or false? plant cells have chloroplast, but no mitochondria?​

Answers

Answer:

False

Explanation:

Plant cells have both but animal cells have only the mitochondria minus the chloroplast.

The circulatory system of the frog..

A. carries oxygen to all of the cells
B. carries food to all cells
C. carries water to all cells
D. all of the above​

Answers

Answer: A

Explanation:

The blood carries oxygen and nutrients to cells and carries waste products away.

When an evolutionary biologist designs an experiment to test a hypothesis, which term is used to describe the variable that the scientist changes among his/her groups of study organisms.

Answers

Explanation:

Controlled experiment =An experiment in which only one variable is changed

Independent variable= The variable that is deliberately changed in an experiment

Dependent variable =The variable this is observed and changes in response to the independent variable

Explain why it is important to prevent the extinction of species?

Answers

Answer:

Animals and plants depend upon each other, so the loss of one species affects others within that complex web of relationships.

Explanation:

Healthy ecosystems depend on plant and animal species as their foundations. When a species becomes endangered, it is a sign that the ecosystem is slowly falling apart.

I hope this helps :3

Answer:

Why is it so critical that we protect species? 1. Its ecological significance. Plant and animal species are the cornerstones of healthy ecosystems. When a species becomes endangered, it indicates that the ecosystem is deteriorating.

Explanation:


Landfills are one source of CO2. As garbage decomposes, it releases CO2 into the air. Can you think of at least one
way that humans can reduce the amount of trash they dump in landfills?

Answers

Answer:

Recycling

Explanation:

Less garbage will be thrown away

Which of the following examples is NOT classified as composite volcano?
A. Mt. Fuji B. Mt. Rainier C. Mt. Mayon D. Mt. Paricutin

Answers

Answer:

C. Mt. Maton

Explanation:

not sure but hope it helps

Mt. Mayon examples is NOT classified as composite volcano.

What is Composite volcano?

Cone-shaped composite volcanoes, also known as stratovolcanoes, are formed from numerous layers of lava, pumice, ash, and tephra. Composite volcanoes typically generate tall peaks rather than rounded cones because they are composed of layers of viscous material rather than fluid lava.

Calderas are occasionally created when the peak crater collapses. The most destructive volcanic eruptions in recorded history have been caused by composite volcanoes.

Apart from Earth, Mars is the only known location in the solar system with stratovolcanoes.

Therefore, Mt. Mayon examples is NOT classified as composite volcano.

To learn more about Composite volcano, refer to the link:
https://brainly.com/question/1100623

#SPJ6

Which of the following defines scion?
a. the trunk portion of a plant onto which a cutting is grafted
b. the portion of a plant remaining after extensive pruning
c. the hybrid offspring of two differing varieties of a species
d. the cutting that is grafted onto the trunk portion of a plant

Answers

C. Is the answer love....

Answer:

A

Explanation:

It is a plant part, not the cutting.

Which statement is the best description of an ecosystem?​

Answers

Answer:

biological community of interacting organisms and their physical environment

An insertion mutation occurs when a base is _____.
A. multiplied

B. added

C. removed

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer....

B. Added

Hope it helps!

Brainliest pls!

Follow me! ;)

Put the following layers of the digestive tract wall in order from the lumen to the deepest layer: 1. lamina propria 4. digestive (mucous) epithelium 2. muscularis externa 5. serosa 3. submucosa 6. muscularis mucosae

Answers

Answer:

4. digestive (mucous) epithelium

1. lamina propria

6. muscularis mucosae

3. submucosa

2. muscularis externa

5. serosa

Explanation:

The first layer of the digestive tract, starting from the lumen, is the epithelium. This has different characteristics depending on the digestive tract section. Then there is a loose connective tissue called lamina propria. Next, there is a layer of muscle called muscularis mucosae. It is only present in the digestive mucosae. The next layer is the submucosa, which has dense connective tissue and the submucosal plexus. Then it follows the muscular externa, which has muscle, and it is in all the digestive tract except for the esophagus and stomach. Lastly, we have the serosa layer.

16. The rate of weathering depends primarily upon the area's _______________________.

Answers

Answer:

Climate

Explanation:

Hope this is right :)

Sorry if I get it wrong

What is the probability of having fish with red scales shown on a table

Answers

Which table miss gurl?

New forms of drug-resistant bacteria can evolve quickly because
A
when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.

B
when scientists genetically engineer bacteria they use natural selection.

C
scientists use extinction to selectively breed bacteria.

D
a drug causes mutations in the bacteria, leaving only mutated bacteria left to breed.

Answers

Answer:

A

Explanation:

True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria. *

Answers

Answer:

Yes this fact is true

Explanation:

I hope this helps

I believe that is true

Water is carried though the trunk in the sapwood.
True
False

Answers

Answer:

true

Explanation:

the answer would be TRUE. The network of thick-walled calls brings water and nutrients up from the roots through tubes inside of the trunk to the leaves and other parts.

What is an adaptation? Give an example of one.

Answers

Answer:

Adaptations are special skills that help animals survive in their environments. For example, in order for pelicans to catch their prey, they use their pouch-like beaks to scoop up fish. This is an example of physical adaptation; the animal is using its body parts to help it survive.

Explanation:

My answer is self-explanatory; this is not plagiarized.

It is the action of adapting to something. For example, if a wild fire wides out 40 acres of forest then all the animals that lived there would have to find somewhere else to live and adapt to their new environment.

Hope this helps!

pls help i literally have no idea how to read a cladogram????

Answers

I think the first answer would be A B because they r from the same branch and if u look at the images they r both birds so they would hve to be closely related
Then the second one, a trait that all have would be a tail.
Then the last one, could be feathers as only the birds hve it but not the squirrel. U could even put down a beak because squirrels don’t hve a beak.

Answer:

1.the most related organism are A and B.

2.they could have a similar anatomy

3.animal A and B are birds and C is a mammal

I NEED HELP AS QUICK AS POSSIBLE!!!

Answers

The answer is Y !!!!!!!!!
Answer:
Correct answer is option B. Y

Hey guys! can someone write a summary on the topic of cloning?

Answers

Answer: Cloning describes the processes used to create an exact genetic replica of another cell, tissue or organism. The copied material, which has the same genetic makeup as the original, is referred to as a clone. The most famous clone was a Scottish sheep named Dolly

Explanation:

Answer:

Write your own work.  I mean I know you did just had my answer deleted because I called you out the first time.  So take the advice

Explanation:

Black panthers are found in both africa and america. what observation would most likely cause scientists to classify these panthers as different species?
A. the american black panther does not eat the same food as the african black panther
B. the american black panther population is smaller than the african black panther population
C. the american black panther is not able to produce fertile offspring with the african black panther
d. the american black panther lives in a different habitat

Answers

The answer should be C.

Kelp (seaweed) is in the
kingdom
A
Archaea
B
Protista
с
Bacteria
D
Fungi

Answers

Answer:

Seaweed is apart of the kingdom B, Protista

Explanation:

This is because seaweed is an algae, which is a multicellular photosynthetic protist.

Kingdom Protista is a unique group that  dont belong in the plant, animal or fungi kingdoms. Many are unicellular organisms as well, but some different algae forms can be multicellular

Hope this helps! Have a good rest of your day!!

Your answer that your looking for is B.

What does every living thing have to have? *
Chloroplast
Nucleus
DNA

Answers

Answer:

DNA

Explanation:

Answer:

Explanation:

Los cloroplastos son los orgánulos celulares que en los organismos eucariotas fotosintetizadores se van ocupando de la fotosíntesis. Están limitados por una envoltura formada por las dos membranas concéntricas y contienen muchas vesículas, los tilacoides, donde se encuentran organizados los pigmentos y demás moléculas que convierten la energía lumínica en energía química, como la clorofila.

El término cloroplastos sirve alternativamente para designar a cualquier plasto dedicado a la fotosíntesis, o específicamente a los plastos verdes propios de las algas verdes y las plantas. Aunque el reciente descubrimiento adiciona a más individuos en la lista, como lo es en el caso de Elysia chlorotica, que al digerir al alga Vaucheria litorea, adquiere los cloroplastos a sus tejidos, y gracias a esto, puede realizar la fotosíntesis.

If a base is deleted, a _____ mutation occurs.
A. substitution

B. insertion

C. point

D. frameshift

Answers

Answer:

Option D. A frameshift mutation occurs.

Answer:

D. frameshift

Explanation:

If a base is deleted, a frameshift mutation occurs. Hope it helps you !!

After initially swallowing food, what is repeated until the food is ready to move on to the Omasum?
A. Acid kills the bacteria.
B. Honeycomb like ridges absorb the nutrients.
C. The animal regurgitates food for chewing until it is ready
for the the next chamber.
D. Gastric juices are secreted to break down food.

Answers

Answer:

Gastric juices are secreted to break down food

The principal enzyme involved in DNA replication is called _____________. The enzyme joins ________________ to synthesize a new _______________ strand of DNA. DNA replication is called ______________ because each new DNA molecule is made up of one original and one new strand.



complementary

DNA polymerase

nucleotides

semiconservative

Answers

Answer:

The principal enzyme involved in DNA replication is called _DNA polymerase_. The enzyme joins _nucleotides_ to synthesize a new __complementary_ strand of DNA. DNA replication is called __semiconservative__ because each new DNA molecule is made up of one original and one new strand.

Explanation:

DNA replication is the process through which DNI molecule duplicates. This event takes place during the S stage of the interphase. So when the cell divides during mitosis or meiosis, each cell will get a complete set of chromosomes.

DNI replication is semi-conservative because each new molecule carries an original DNI strand and a new one. The fact that the new molecule is composed of an original strand makes it semi-conservative. The old existing strands are used to synthesize the new complementary strand.

The origin of the replication requires helicase enzymes to break hydrogen bonds and separate the two original strands. The topoisomerase enzyme is necessary to release tension. Other proteins are also needed to join the strains and keep them separated. Once the molecule is opened, there is a region named replication forks. DNA polymerase makes the new nucleotides enter into the fork and pairs them with the corresponding nucleotide of the original strand. Adenine pairs timine, and cytosine pairs guanine.

DNA strands are antiparallel, and replication occurs only in 5´-3´direction. So one of the strands will replicate continuously, while the other strain will be formed by short fragments known as Okazaki fragments.

Primers are needed to make the DNA polymerase work. Primers are small units of RNA and are placed at the beginning of each new fragment.

PLZ help me I’m too slow

Answers

It would be the butterfly orchid since it is a primary producer known as an autotroph! (Is this is AP bio exam?)

Which would most likely cause a forced migration due to loss of habitat?
a short-term change
a long-term change
death
adaptation

Answers

Answer:

short term

Explanation:

Answer:

short

Explanation:

edg

In an example of natural selection, ______ cells in cancerous tumors can survive chemotherapy, and these cells go on to divide rapidly in the absence of competition from other cells.

Answers

Answer:

1. Drug-Resistant

Explanation:

plz help
Project: Evaluating Human Impact on the Environment

Answers

Answer:

1

Explanation:

Answer:

look on quizlet

Explanation:

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Forced Germanyto surrenderterritoryLimitedGermany'smilitary capacityCreated theLeague ofNations toresolve futureconflict?Which of the following would best complete the diagram?o Germany required to pay monetary reparations for the warForced Great Britain to limit their militaryO Placed responsibility on Russia for causing the warEstablished its own military force to settle conflictsUQuestion 61 pts I need an answer immediately!!!!!!! In spite of his friends' frequent invitations to join them in their summer activities, Mark devoted himself to musical scores and practiced his violin faithfully therefore, it came as no surprise that his audition for the city's youth orchestra, one of the best in the nation, was successful. June needs to correct the punctuation in her sentence. Which change should she make? O 1. Insert a semicolon after the word "activities." 0 2. Insert a semicolon after the word "faithfully." O 3. Delete the comma after the word "therefore." 04. Delete the comma after the word "orchestra." What caused the two leaders during the civilwar in China to decide to stop fighting in the1930s?A. the end of WWIIB. the start of the Korean WarC. the start of the WWIID. the exile of Chiang Kai Shek what is lm in the triangle at the right MY BRAIN IS GONNA EXPLODE I NED AWNSER, I WILL MARK BRAINLEIST!!!!! PLEASE HELP ME I AM BEING TIMED, I WILL MARK THE BRAINLIEST TO WHOEVER GETS THIS RIGHT, WITH AN EXTRA 10 POINTS! Pls i need help on these I HAVE BEEN STUCK Hello could someone answer this? Thank you! Prompt #1 -Teachers and employers want people to have good work habits.Think about the good work habits people should have.Now write to explain what good work habits people should have.< Is that informative or Persuasive / Argumentative ILL MARK U BARINLIEST HELP!!!!!!!!!!!!A ball is tossed into the air. The quadratic function h(t) = -16t^2 + 14t + 5 represents the situation, where t represents the time, in seconds, after the ball is tossed and h(t) represents the height of the ball, in feet. Which of the following statements is NOT true A- the constant term represents the height from which the ball was tossed. B- The factors of the function can help determine when the ball hit the ground.C- The leading coefficient indicates that the graph of the parabola that represents the ball's height over time will open in an upward direction.D- The graph of the parabola that represents the ball's height over time will have a relative maximum. I've had to repost this question like 4 times because ppl put fake answers, pls put the answer if u know it and dont lie Explain briefly why the Baroque period is sometimes called "The Age of Theater." he small ball inside the cubed display case has a volume of 8 cubic inches. If the free space inside the display case is 208 cubic inches, then how tall is the display case?6 inches8 inches10 inches9 inches Rewrite the expression as an exponent with a base of x: (x^6)^4 14 deg 37 deg what's the missing angle which quadrilateral has diagonals that are congruent but do not bisect each other Which of the following is always one of the data values in a data set? A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic. The French sub moves at 43.00 km/hkm/h , and the U.S. sub at 64.00 km/hkm/h . The French sub sends out a sonar signal (sound wave in water) at 1000 Hz. Sonar waves travel at 5470 km/hkm/h . What is the signal's frequency as detected by the U.S. sub what role do sources have in historical inquiry