Describe an experiment step by step to show that carbon dioxide is needed by a plant in order to make starch.​

Answers

Answer 1

Answer:

Expose one leaf to sodium hydroxide, which will absorb carbon dioxide from the surrounding air. Expose another leaf to water (control experiment), which will not absorb carbon dioxide from the surrounding air. Place the plant in bright light for several hours. Test both leaves for starch using the 4-step starch test.

Explanation:

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Related Questions

19. Salinization may be caused by
a. crop rotation.
b. long-term irrigation.
c. high rainfall.
d. All of the above

Answers

Answer:

The correct answer is A. crop rotation.

Explanation:

Hope this helps :)

The parenting style that can be described as lenient or inconsistent is called __________.

A. authoritarian
B. authoritative
C. permissive
D. backbone

Answers

Answer:

You're answer is C - Permissive!

Explanation:

- Eijiro <3

Answer:

C. Permissive

Explanation:

Took Edge test, got 100% :D

explain what constitutes the internal environment

describe one structural and one behavioural adaptation of humans for retaining heat in cold environments ​

Answers

Answer:

Water based fluid

Explanation:

The internal environment consists of water based fluid in which the cells of the body present. A fluid called interstitial fluid or tissue fluid bathes the cells and provides essential nutrients to the cell. The human skin has fatty layers that helps to maintain internal heat which is produced by the body when the outside environment is cold. When there is cold in the environment, people lives in warm shelters and wear warm clothes in order reduce the impact of cold environment.

I control all metablic activities of the cell​

Answers

Answer:

What do you mean by I control all metabolic activities of the cell

heat is to summer as cold is to?_____​

Answers

the answer is cold is to winter

Answer:

winter

Explanation:

no idea if this helps but have a good rest of your day/night <3 <3 <3

Define :-Aquifer
Answer this correctly I'll mark you brainliest​

Answers

Answer:

An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.

A body of permeable rock which can contain or transmit groundwater.

write a 5-7 sentence paragraph explaining what happens to co2 levels in the world over the course of the year. add as much context and details as you can

Answers

Answer:

The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Respiration happens all the time, but dominates during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.

Explanation:

help me please, i need complete sentences

Answers

Answer:

Look below

Explanation:

(A) A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion

(B) After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil, while plants become coal. Today, humans extract these resources through coal mining and the drilling of oil and gas wells on land and offshore.

(C) These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.

(D)Global warming pollution

How many atoms does nitrogen dioxide have??

Answers

Answer: in one molecule of NO2 there is one nitrogen atom and two oxygen atoms.

Explanation: lol

Which of the following is most clearly a benefit of genetic engineering?

Answers

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering.

Answer:

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering-

Explanation:

production of human insulin through genetic modification of bacterial genes

D

describe an experiments to show that ochaled air
Cartain carbon dioxide​

Answers

Answer:

Let's find out if exhaled air contains carbon dioxide.

Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.

Explanation:

PLEASE HELP WILL GIVE BRAINLIST!!!! Write a hypothesis to describe the relationship between earthquakes and tsunamis.

Answers

Answer:

Hypothesis: Earthquakes and tsunamis are caused by tectonic plates in the Earth's crust. When the crust moves, they occur, depending on the location of the crust.

Answer:

Most times a earthquake is what causes a tsunami, such as a deep ocean earthquake causing a tsunami to form. Most tsunamis are formed that way because deep ocean earthquakes create so much force.

Explanation:

When the population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would do?
A. Decrease

B. Increase, because there is more food available to them.

Answers

Answer:

B

Explanation:

When there’s more food, the populations that depend on that food with flourish. It is also worth noting for future questions that a decrease in predation will usually lead to an increase in a population of prey. Hope this helps :)

The population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would :

B. Increase, because there is more food available to them.

The population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would increase, because there is more food available to them.When there is more food, the population that depends on it will prosper. For future questions, it is also worth noting  that a decrease in predation usually leads to an increase in prey population.

Thus,the correct answer is B.

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20 points real answers would be amazing thank you!

Which of these is a property of tsunami waves? (1 point)
high frequency
very high speed
short wavelengths
very large amplitude

Answers

Answer: The answer would be high frequency

Explanation:

Waht is Environment Secretary ​

Answers

Answer:

Thiru Shambhu Kallolikar IAS., Principal Secretary to Government, Environment and Forests Department, Government of Tamil Nadu

Answer:

Thiru Shambhu Kallolikar IAS., Principal Secretary to Government, Environment and Forests Department, Government of Tamil Nadu

When a stream's velocity decreases from 300 to 200 centimeters per second, which size sediment will be deposited?

Answers

Middle size sediment will be deposited on the ground when the speed of flowing water decreases.

Deposition of sediments

When a stream's velocity decreases from 300 to 200 centimeters per second, the middle size sediment will be deposited because of the lowering velocity of the stream. Big size sediments hardly move by the water of the stream.

While on the other hand, middle and small sized sediments easily moved by the flowing water due to their light weight so we can conclude that middle size sediment will be deposited on the ground when the speed of flowing water decreases.

Learn more about sediment here: https://brainly.com/question/92230

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What are the 3 main parts of the
Endocrine System? (select all that apply)

Hormones
Cell receptors
Glands
Skin

Answers

Answer:

Hormones, Cell receptor and glands

which ecosystem service with suffer the most from opening a large stretch of coastal or domestic drilling
a) cultural
b) provisioning
c) regulating
d) supporting

Answers

Answer:

I believe the answer is Provisioning services

Explanation:

Biodiversity is known to underpin these ecosystem services, which inter alia, include: 1) provisioning services that provide potable water, food, fibre, and medicine; 2) regulating services that control our climate, disease vectors, crop pests, and pollinators; 3) cultural services that influence our beliefs, traditions and provide enjoyment opportunities; and 4) supporting services that underpin life on Earth through the cycling of nutrients, soil formation, and photosynthesis

Correct me if i'm wrong but i hope i helped! xoxo

How do the nonvascular plants reproduce?

Answers

Answer:

hope its help you stay happy

Choose all the answers that apply.

Chromosomes _____.

are tight coils of DNA
are carried on genes
always occur in pairs
can be analyzed in a karyotype
carry thousands of genes

Answers

Answer:

tight coils of DNA

always occurs in pairs

carry thousand of genes

The use of pesticides and fertilizers is carefully monitored because of the effect they can have on the environment Which of the following is a possible negative effect of the use of these chemicals on the environment?

Answers

Pesticides are known to enter into the bodies of animals via chemicals in the water (the pesticide will soak into the sod and spread to underground water), which can cause reproductive defects and harm (DDT, for example), which can decline the population of said species, giving a chain reaction to other organisims dependent on the endangered species.  

PLEASE HELP!!!!!!

Most nerves of one of the sense organs go to the spinal cord before they go to the brain. Which organ is
this? (Think of your own body.)

Answers

Answer:

Umm every sense of organs travels in the spinal cord.

Most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain..

What is the significance of the reflex action?

Reflex actions are important because they allow the body to respond quickly to stimuli without waiting for the brain, and they can be especially important in situations where a quick response is necessary to avoid danger, such as when the hand touches hot substances and the hand suddenly goes back, which is due to the motor neuron action of the spinal cord.

Hence, most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain.

Learn more about the significance of the reflex action here.

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Infer from the photo below where the light
source is in relation to the plant

Answers

Answer:

caca

Explanation:

acac

the length of bamboo grows much faster than that of thickness why?​

Answers

Using a slow- and fast-growing variant of bamboo, Wei and colleagues looked at cell division, growth, and gene expression (through transcriptomics, which measures all the genes being expressed by an individual) to discover which genes may be responsible for fast growth in bamboo. They found that the slow-growing variant had reduced expression of genes relating to cell wall construction, the plant hormone auxin (important for cell growth and cell division), and had irregular cell growth and cell walls. Wei and colleagues suggest that a reduced ability to produce and perceive auxin, combined with a weakened cell wall, are responsible for the slow growth seen in the bamboo variant.

Choose the correct connective tissue.

1)Bone to bone
2)Muscle to muscle

-ligament
-tendon

Answers

Explanation:

A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.

A tendon is a fibrous connective tissue which attaches muscle to bone.

A ligament is a fibrous connective tissue which attaches bone to bone.

What is tendons and its function?

A tendon is a cord of strong, flexible tissue, similar to a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs. They also help prevent muscle injury by absorbing some of the impact your muscles take when you run, jump or do other movements.

What is ligament and its function?

Ligaments often connect two bones together, particularly in the joints: Like strong, firmly attached straps or ropes, they stabilize the joint or hold the ends of two bones together. This ensures that the bones in the joint don't twist too much or move too far apart and become dislocated.

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Which of the following is not a major component of blood in humans?  AEpithelial cells  BRed blood cells  CWhite blood cells  DPlasma  EPlatelets

Answers

Answer:

A - Epithelial cells

Explanation:

Epithelial cells are cells that come from surfaces of your body, such as your skin, blood vessels, urinary tract, or organs. They serve as a barrier between the inside and outside of your body, and protect it from viruses. A small number of epithelial cells in your urine is normal.

A homeowner is interested in conserving energy and money by changing their heating and cooling habits in their home. Their
monthly bill for heating their home is approximately $200 in the winter months. By setting their thermostat one degree lower, the
homeowner can save 5% of their energy bill in the winter. Calculate how much the homeowner will save in one winter month is they
set the thermostat to three degrees lower than normal.

A)
$10
B)
$20
C)
$30
D)
$5

Answers

Answer:

A $10

Explanation:

5÷100=20 20÷200=10 so therefore the answer is $10


SOMEONE PLEASE HELP

Examine the model of the carbon cycle select all of the processes that we turn carbon compounds to the atmosphere.

Answers

B, C, and E are the processes that release carbon compounds to the atmosphere

The processes that considerably turn carbon compounds into the atmosphere are the decaying of organisms, the respiration of animals, and emissions from automobiles and factories. Thus, the correct options for this question are B, C, and E.

What do you mean by the Carbon cycle?

The carbon cycle may be defined as a type of biogeochemical cycle through which carbo and its derivative products are exchanged among the various spheres of the earth's surface. Carbon is considered one of the main components of biological systems.

In the carbon cycle, rhe process of photosynthesis utilizes the carbon from the atmosphere in order to produce chemical energy in the form of glucose. While the excretion of animal waste products is responsible for nitrogenous compounds like urea or ammonia.

Except for these two, all other options are directly liberating carbon into the atmosphere which can easily be demonstrated in the carbon cycle.

Therefore, the correct options for this question are B, C, and E.

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While playing baseball with his friends, Reyes was almost hit in the face with a fast ball. Neurotransmitters in his _____ were released, triggering the firing of neurons throughout his brain and the release of chemicals throughout his body. His heart beat quickened, his pupils dilated, and his respiration increased.

Answers

hypothalamus

I hope this helps

hypothalamus

I hope this helps

11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably have?

Answers

Answer:

The correct answer is - brown heterozygous Bb and blue eye bb.

Explanation:

In the provided question it is given that there are 20 babies born, 10 babies had blue eyes and 10 had brown eyes. As it is known that brown eyes are dominant over blue eyes, therefore, on the basis of this we can say that all blue-eyed babies have a bb genotype and as brown eyes are dominant traits babies must have at least one copy of the B allele which represents brown eye trait.

case1:

Parent 1 : bb

parent 2: BB

   B      B

b  Bb   Bb

b   Bb   Bb

there are 100% brown eye offspring so this is not the case

case 2:

Parent 1 : bb

parent 2: Bb

   B      b

b  Bb   bb

b   Bb   bb

here, 50% brown eyes and 50% blue eyes offspring produced thus, the parent trait will be brown heterozygous and blue eye.

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