why would the green part of a variegated test positive when treated with iodine solution?​

Answers

Answer 1
This is your perfect answer.
Variegated leaves have green parts (where the cells contain chlorophyll) and white parts (where there is no chlorophyll). Only the parts that were green become blue/black with iodine solution, showing the importance of chlorophyll in photosynthesis. ... This is evidence that chlorophyll is required for photosynthesis.

Related Questions

Outline THREE adaptations of terrestrial plants for their survival in their habitat.

Answers

Answer:

Stomata for gas exchange, water resistant waxy cuticles on leaves and specialized cells for support.

Explanation:

Plants have undergone several modifications for life on land. These include the development of several mechanisms:

a waxy, thick water-repellent cuticle- the thick cuticle provides a barrier to water loss from plant tissues in the leaf. stomata- these moderate the evaporation of water, an important commodity to land dwelling terrestrial organisms. They also regulate gas change cells to provide strength and rigidity- plant cells are specialized cells that contain lignin and cellulose, these are rigid provide good support against gravitational forces, Without them the stem would break and the cells would readily lose water

Pleas give me an answer if you actually really know the answer because everybody is giving different answers, pls

Answers

Answer:

plants

Explanation:

plants are green

Answer:

Some kind of organisms that chloroplasts are found in are green plants and algae, also photosynthetic tissues that are not green, such as red leaves, etc.

Explanation:

Hope it helps!

how can a long-term environmental change can lead to the development of a new species

Answers

When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. ... Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.

Answer:

A long term change can affect how species of right now live and act.

Explanation:

Eventually, that new change would cause an evolution to occur for that species so that they can adapt and be fully prepared for the change that occur so that they can survive.

#teamtrees #WAP (Water And Plant)

A researcher is studying a cornfield that has been recently abandoned by a farmer. By the end of one
year, wild grasses begin to grow in the field.
Identify whether this is an example of primary succession or secondary succession.

Answers

Answer:

ummm

Explanation:

Early civilizations made pottery as functional and decoritave objects.they used geometric and free flowing designs.what design was especially important in ancient pottery? A) circle B) square C) spiral D triangle if this gets annoying sorry dudes and dudettes

Answers

Answer:

most potteries were Circular, Such as in Egypt they had slavery, but it wasn't like European slavery. They would grow their farms to provide for their families. one main way was to carry water back for their crops in circular plates and vases.

You could say Egyptian slavery wasn't slavery. it was mainly just everyone fending on their source of crops. And everyone could sell their crops for more produce.

Explanation:

Answer choice: Circle

how many chromosomes do whales have

Answers

Answer:

i have been researching and i found they have 42 chromosomes. Blue whales have 44 and sperm whales have 46 i was getting different numbers for different whales

Explanation:

Hope i helped!

Plants have an added layer that animal cells do not. What is that added layer called?

Answers

Answer:

a cell wall

Explanation:

What are weather balloons?

Locations with instruments that measure weather conditions in specific land areas
Numerical equations based on weather-related factors that forecast weather
Objects that carry instruments into the stratosphere to measure atmospheric conditions
Structures that orbit Earth in the exosphere to capture images and collect data

Answers

Answer:

What are weather balloons?

Objects that carry instruments into the stratosphere to measure atmospheric condition.

Answer:

c i think i hope u get a good test score

Explanation:

Which type of cancer is the fastest growing? Explain your answer, using your relevant data.
What changes happen in cancerous cells?

Answers

Answer:

more pain

Explanation:

some cells will die and this disease cannot be

treated and you would feel more pain

and so dangrous

Which idea explains Darwin’s observations about Galapagos Islands finches?

A) biological species concept

B) ecological species concept

C) endangered species extinction

D) sympatric speciation

Answers

Answer:

I think the answer is A) biological species concept

find the kinetic energy of a ball of mass 200 grams moving at a speed of 20m/s​

Answers

We have a mass of 200g (0.2kg) moving at 20m/s

Kinetic Energy KE = ½ mv^2 where m is mass and v is velocity

Actually, v is a vector quantity, so KE = ½ mv•v

The dot product of 2 vectors a and b is abCosθ where θ is the angle between the vectors.

Obviously v•v = v^2 Cos0 = v^2

In this case, we have KE = ½ (0.2)(20^2) = 40kg-m^2/s^2 = 40J

So we have kinetic energy in the amount of 40 Joules.

Answer is 40J...............

What is an advantage of asexual
reproduction?
A. Creates genetic diversity.
B. Occurs quickly.
C. Produces a small number of offspring, D. Produces identical offspring.

Answer that is correct and with explanation gets brainliest!​

Answers

Answer:

B

Explanation:

he population can increase rapidly when the conditions are favourable. only one parent is needed. it is more time and energy efficient as you don't need a mate. it is faster than sexual reproduction.

QUICK! 30 POINTS

D is crossed out because it is wrong.

Answers

Answer:

C. There is a loss in energy

Explanation:

how can drip irrigation be useful in farming​

Answers

Answer: It helps control the water better and more efficiently. It also helps to save water

Explanation:

Which of the following is true about a light-year?

A)It is a measure of time.

B) It takes one light-year for light from the Sun to reach Earth.

C) it takes one light-year for Earth to orbit the Sun.

D) It is a measure of distance.


plz answer ^w^
thx​

Answers

Answer:

D) It is a measure of distance.

Explanation:

I belive is the answer

Answer:

E - which is the year is light

Why are water striders able to "walk on water"?​

Answers

Answer:

Water striders can walk on top of water due to a combination of several factors. Water striders use the high surface tension of water and large hydrophobic legs to help them stay above water. Water striders use this surface tension to their advantage through their highly adapted legs and distributed weight.

Hope this helps :)

Write 3 things you know about the Carbon Cycle.
Pls help ASAP!

Answers

Answer:

Carbon moves from living things to the atmosphere.

Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.

Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...

Explanation:

NEED HELP ASAP !!!!

John and Jake are twins. John became a famous artist and lived to be 90
years old. His brother, Jake, was unemployed most of his adult life and died
of a drug overdose at age 35. This is an example of how development is:
A. lifelong.
B. multidimensional.
C. multidirectional.
O D. pliable.

Answers

Answer: D PLIABLE!!

Explanation: took quiz

HELP PLEASE!! NEED ANSWER REALLY QUICK!

Answers

Answer:

b

Explanation:

Two students are given cubic boxes, measuring 10 cm on a side. Robert puts a single glass marble with a
diameter of 10 cm in the box. Susan puts 1,000 1-cm glass marbles in her box.

1. Whose box has more empty space? Explain.

Answers

Answer:

Both boxes have the same amount of empty space

Explanation:

Given

Cube Box

[tex]Length = 10cm[/tex]

Robert:

1 glass marble

[tex]Diameter = 10cm[/tex]

Susan:

1000 glass marble

[tex]Diameter = 1cm[/tex]

Required

Whose box has more empty space?

First, we need to calculate the volume of the cubic box.

[tex]Volume = Length^3[/tex]

Substitute 10cm for Length

[tex]Volume = 10^3[/tex]

[tex]Volume = 1000cm^3[/tex]

Next, calculate the volume of Robert's glass

Volume is calculated as:

[tex]Volume = \frac{4}{3}\pi r^3[/tex] ---- Volume of a sphere

Where

r = radius

[tex]r = \frac{1}{2} * Diameter[/tex]

[tex]Diameter = 10cm[/tex] --- Given

Substitute 10 for diameter

[tex]r = \frac{1}{2} * 10cm[/tex]

[tex]r = 5cm[/tex]

So:

[tex]Volume = \frac{4}{3}\pi r^3[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{7} * 5^3[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{7} * 125[/tex]

[tex]Volume = 523.8cm^3[/tex]

Next, we determine the volume of Susan's 1000 glasses

Volume is calculated as:

[tex]Volume = \frac{4}{3}\pi r^3[/tex] ---- Volume of a sphere

Where

r = radius

[tex]r = \frac{1}{2} * Diameter[/tex]

[tex]Diameter = 1cm[/tex] --- Given

Substitute 1cm for diameter

[tex]r = \frac{1}{2} * 1cm[/tex]

[tex]r = 0.5cm[/tex]

Substitute 0.5cm for radius in [tex]Volume = \frac{4}{3}\pi r^3[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{7} * 0.5^3[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{7} * 0.125[/tex]

[tex]Volume = 0.5238[/tex]

But there are 1000 glasses.

So, the volume of 1000 glasses is:

[tex]Volume = 0.5238 * 1000[/tex]

[tex]Volume = 523.8cm^3[/tex]

--------------------------------------------------------------------------------------------------------------

For Robert:

[tex]Volume = 523.8cm^3[/tex]

For Susan:

[tex]Volume = 523.8cm^3[/tex]

Since, they have the same volume.

Both boxes have the same amount of empty space

From the dimensions of glass marble for robert and susan, we can say that; none of the given boxes have more empty space.

We are told that the cubic boxes have a measure of 10 cm for its' sides.

Formula for volume of a cube is;

V = lwh

where;

l is length

w is width

h is height

Thus; V = 10 × 10 × 10

V = 1000 cm³

For Robert;

We are told that he puts a glass marble with a diameter of 10 cm in the box. The glass is usually spherical in shape and the volume of a sphere is;

V = ⁴/₃πr³

Thus;

V_rob = ⁴/₃π × (10/2)³

V_rob = 523.6 cm³

Volume left for rob = 1000 - 523.6

Volume of empty space left for rob = 476.4 cm³

For Susan;

V = ⁴/₃πr³

Thus;

V_sus = ⁴/₃π × (1/2)³ × 1000

V_sus = 523.6 cm³

Volume left for susan = 1000 - 523.6

Volume of empty space left for susan = 476.4 cm³

Read more at; https://brainly.com/question/3948796

Pls help me with this question
B. Explain the steps used to separate chalk powder, rice grains and stones

Answers

Answer:

chalk powder can be seaprated by dissolving with water

rice grains remain

stones by hand

Answer:

chalk with the machine and rest all with hands

Explanation:

A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil. What can some bacteria do for soil?


increase clay content

provide water

slow down weathering

improve fertility

Answers

Answer:

D. improve fertility

Explanation:

A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil.

This claim is simply based on the premise or fact that some bacterias can improve fertility of the soil.

Some species of bacterias are living microorganisms that are capable of decomposing organic matter into nitrogen, carbon and other nutrients, which are then released into the soil in a plant available form when in excess and this cycle continues with reproduction of new bacterias.

Some examples of these bacterias are Klebsiella, Anabaenopsis, Beijerinckia, Azotobacter, Clostridium, Anabaena, Nostoc, Bacillus etc.

What is DNA replication? Highlight your answer.

A. Conservative
B. Non-conservative
C. Semi-conservative
D. None of the above

Answers

Answer:

C

Explanation:

How are the causes of ocean acidification and climate change related to one another

Answers

Answer:

The rising concentration of carbon dioxide in the atmosphere is driving up ocean surface temperatures and causing ocean acidification. The rate at which water absorbs CO2 decreases as water temperature increases.

Explanation:

Found it on google lol

Jorge conducted an experiment and included the graph shown below as part of his lab report.
Jorge's experiment involved which of the following? DS
(5 Points)
A change in the chemical properties of a substance
The formation of a new substance.
O A physical change
A chemical change.


Plsss help

Answers

Answer: A

Explanation:

how can the people who take antibiotics increase resistant bacteria populations? Please answer using the scientific method!​

Answers

Answer:

How do bacteria become resistant to antibiotics? Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm.

________ are individual organisms with a gastrovascular cavity and circle of tentacles that make up coral.
A) Polyps
B) Algae
C) Nematocytes
D) Planulae
E) Atolls​

Answers

I think it’s A. Hope this helps :)

Approximately 50 million acres of tropical rainforest are cleared each year. Which effect most likely would result from the clearing of these forests?

a. A decrease in soil erosion
b. An improvement in water quality
c. A decrease in biodiversity
d. An improvement in air quality ​

Answers

Answer:

A.

Explanation:

The effect most likely would result from the clearing of these forest is A decrease in soil erosion.

What is reforestation and why is it important?

Reforestation is of great importance in combating climate change. In the increase of water resources, in the reduction of damages in agriculture related to floods, in the increase of the sustainable stock of legal wood, in the sequestration of CO2 and reduction of the greenhouse effect.

Reforestation consists of repopulating deforested areas to recover forests that were destroyed in the recent past.

See more about reflorestation at brainly.com/question/16214155

#SPJ2

Reasoning: Write a three sentence statement that connects your evidence to your claim
about living organisms.

Answers

Answer:

Living organisms such as birds, animals, plants and microorganisms form the biotic component while land, air and water form the abiotic components. Biotic and abiotic components interact with each other resulting in transfer and replenishment of energy and nutrients.

Explanation:

what is glandular system​

Answers

Answer:

the endocrine system is the collection of glands that produce hormones that regulates metabolism, growth and development, tissue function, sexual function, reproduction,sleep and mood,then other things.

Answer:

The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

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