What are the products of photosynthesis?

Answer:

The correct answer is - No, it is not valid because the short distance means there will be a lot of error due to the student's reaction time.

Explanation:

In this experiment to determine the acceleration due to gravity, there may be errors because of the student’s reaction time. The reaction can be late or early than prior reactions.

The other error can be caused by the distance was only at arm’s length throughout the experiment, which means that there was no independent variable that is the difference or change in the distance. This also makes the experiment invalid.

Answer: Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi and bronchioles till the alveoli.

Explanation:The pathway of air in the respiratory system starts with the external organs of the nose and mouth.

Nose: Air is inhaled through the nostrils (and sometimes through the mouth) where it is filtered by the hairs and cilia to remove dust particles and moistened. The nasal cavity also moderates the temperature of the inhaled air.

Pharynx: This is a common passage for food, water, and air. It leads from both the nose and the mouth and leads to both the trachea (windpipe) and the oesophagus (foodpipe).

Larynx: This is the voice box situated just over the trachea and has a flap called the epiglottis which closes during swallowing to prevent food from entering the trachea and opens during breathing.

Trachea: Air now enters the windpipe which is situated behind the sternum (breastbone) and between the two lungs.

Bronchus: From the trachea, two bronchi (one bronchus for each lung) enter the lungs and divide and subdivide into secondary and tertiary bronchi, getting narrower as they proceed into the lung.

Bronchioles: The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air.

Alveoli:. Air ends its pathway in the alveoli (sing. alveolus) which are tiny sacs with very fine singe-celled walls. These alveoli are surrounded by capillaries that connect the pulmonary arteries and veins and that enable transfer of oxygen and carbon dioxide.

The sodium-potassium pump does not allow the movement of sodium molecules against their concentration gradient into the cell  with the use of ATP molecules.

In sodium-potassium pump, the sodium moves outside the cell whereas potassium moves inside the cell with the help of using ATP molecules. The sodium-potassium pump maintains the gradient of higher concentration of sodium extracellularly means outside the cell and a higher level of potassium intracellularly means inside the cell. This process is done only in the presence of ATP molecules that provides a force for the movement of sodium and potassium so we can conclude that no movement of sodium occur inside the cell in the sodium-potassium pump.

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Answer: Moves sodium molecules against their concentration gradient INTO the cell using ATP.

Explanation:

The sodium-potassium pump moves sodium molecules against their concentration gradient out of the cell and moves potassium molecules against their concentration gradient into the cell. It also helps to regulate internal physiological needs through gradients. However, it doesn’t move sodium ions into the cell—that occurs through passive transport.

PENN

Answer:

mark me as brainliest

Explanation:

It helps to ascertain the number of living beings on Earth. More than one million of species of plants and animals have been discovered and classified so far. It aims to classify the living organisms. Millions of organisms are classified scientifically in categories, which helps to have a better understanding

The theory and practice of characterizing, naming, and classifying living things is known as taxonomy. Such research is critical for a basic knowledge of biodiversity and its preservation.

Taxonomy is important because:

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The non-invasive test that can be used to test if the cribriform plate is severely damaged is called the pledget study.

CRIBRIFORM PLATE is the part of the ethmoid bone that forms the nasal cavity.

The olfactory nerve which is part of the cranial nerves passes through the small opening found in the cribriform plate.

A damage to the cribriform plate leads to cerebrospinal fluid (CSF) leak which usually comes out from the nose and ears.

Therefore to test if the cribriform plate is severely damaged, the pledget study is performed.

Pledget study is a non-invasive method of diagnosing a CSF leak.

To perform this test,

The presence of CSF shows that there is damage to the cribriform plate.

This method is non invasive because it doesn't require the breaking or opening of any part of the body.

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Answer:

AUG is the only initiation codon in eukaryotes.

Explanation:

Initiation codon in eukayotes is ___AUG___

Answer:

D. the basic unit of life

Explanation:

A cell is the basic fundamental unit of a living organism. There two types of organisms which are unicellular (single cell organism) and multicellular (many cells)

Answer:

the answer is osteon

Explanation:

Answer:

vapourization

Explanation:

When the water is heated, it changes into water vapour which is called vapourization or sometimes we can also call it evaporation.

Answer:

fungi

Explanation:

bcuz it is plant-like organism with lack of chlorophyll

Answer:

The correct answer is - NAD needed to keep glycolysis going is not being recycled so the entire process is shut down and no ATP is produced

Explanation:

Alcohol dehydrogenase plays role in metabolizing the bulk of ethanol consumed as part of the diet and their activities contribute to the rate of ethanol elimination from the body.

Inhibitor of this zinc enzyme prevents it to perform its function which results in NADH generated during anaerobic conditions glycolysis cannot be recycled back to NAD+, So the ATP production pf anaerobic condition through glycolysis cannot be maintained.

Answer:

The correct answer is: a. True.

Explanation:

There are several membrane transport systems responsible for the passage of ions like Na+ and K+.

Cell membranes are semipermeable, which means they can regulate which molecules may and cannot flow through them. Some molecules may simply drift in and out of a cell (this is called simple diffusion), while others require specific structures to enter and exit (this type of diffusion is called facilitated diffusion), and still, others require an energy boost to pass the cell membrane (this is known as active transport).

Both simple diffusion and facilitated diffusion are types of passive transport: they happen without the energy boost that ATP gives, unlike active transport.

In passive transport, molecules follow their chemical gradients and travel through the most concentrated compartment to the less concentrated one to equal the concentrations. In active transport, on the other hand, the cell makes an effort to enter or exit ions against their chemical gradients and this is done particularly to maintain said gradients (they are required for the correct functioning of the cell).

Sodium and Potassium are two of the most important ions when it comes to maintaining these gradients: sodium is very concentrated in the outside of the cells (the extracellular compartment), while potassium is highly concentrated in the intracellular compartment. These differences in concentrations are maintained thanks to the Na+/K+ pump, a form of active transport. Apart from the Na+/K+ pump, these ions go through the membrane through passive transport as well, without requiring energy.

Answer:

c

Explanation:

Answer:

This time is divided into three stages, called trimesters.

Explanation:

First trimester, spans from conception to 12 weeks

Second trimester, spans from weeks 13 and 28.

Third trimester, spans from weeks 29 to 40.

https://my.clevelandclinic.org/health/articles/7247-fetal-development-stages-of-growth

Answer:

The experimental variable, also recognized as what is being tested in this experiment is the fertilizer. The student is testing to see how much of a difference (if any) the fertilizer causes in plant growth.

Answer:

A scientist is in charge of societal concerns as well as the practical application of his innovation. He must abide by intellectual property rights so that his new innovation is open and honest. Ethics is the bedrock of any study.

OAmalOHopeO

Answer:

Pneumotaxic centre in the pons region of the brain can moderate functions of the respiratory rhythm centre. Neural signals from this centre can reduce the duration of inspiration and thereby alter the respiratory rate. A chemosensltive area is situated adjacent to the rhythm centre to make necessary adjustments in the respiratory process. Receptors associated with aortic arch and carotid artery also can recognise changes in CO  

2

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 and H+ concentration and send necessary signals to the rhythm centre for remedial actions. The role of oxygen in the regulation of respiratory rhythm is quite insignificant.

So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.

Explanation:

Answer:

this means that the oxygen is maintained  by the respiratory rhythm.

Explanation:

I think the answer is the second one.

Answer:

Energy stored in plants is transferred to humans and animals that eat them

Explanation:

It should be noted that muscles only work to produce movement through pulling, muscles cannot push. Therefore, the statement is true.

Muscles allow people to move by pulling in the joints. Muscles are required to breathe, exercise and stay healthy.

There are three main form of muscles in the human body and they're:

• Skeletal muscles: The muscles give the body its shape as they help in holding the skeleton together.

• Smooth muscle: They're also called the involuntary muscle. They consist of fibers and are controlled by the nervous system. They help in maintaining blood pressure.

• Cardiac muscle: This is the muscle that's found in the heart. It helps in ensuring that the heart function well.

In conclusion, muscles only work to produce movement by pulling, they cannot push.

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Answer:

Reducing the intensity of runoff.

Explanation:

Terrace farming prevent landslides and erosion to occur by reducing the intensity of runoff. This farming also reduce the risk of drought due to raising the moisture content in the soil and allowing water to slowly infiltrate into the soil. Due to terrace farming, the runoff water moves very slowly which causes less erosion of the soil as well as reduces the intensity of water flow which causes more infiltration.

Option d) emulsion test  would be utilized to determine if lipids exist present.

The emulsion test exists as a method to determine the existence of lipids using wet chemistry. The procedure exists for the sample to be suspended in ethanol, permitting lipids present to dissolve. The liquid exists and is then decanted into water.

This test is accomplished to demonstrate the presence of lipids in a substance. The substance exists first dissolved in ethanol. This solution exists then dissolved in water. If lipids exist present in the mixture, they will precipitate and create an emulsion.

Hence,Option d) emulsion test  would be utilized to determine if lipids exist present.

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Answer:

The answer is B,

Explanation:

B. The managed consumption of natural resources to prevent their depletion or environmental destruction

Sustainable practices are managing natural resource consumption to prevent depletion or environmental destruction. Therefore, option "B" is correct.

Manageable practices support biological, human, and monetary well-being and imperativeness. Supportability assumes that assets are limited, and ought to be utilized moderately and shrewdly so as to long haul needs and outcomes of the manners by which assets are used.

Organizations and individuals that consideration about supportability are likewise less inclined to infringe upon the regular living spaces of wild creatures, consequently safeguarding the biodiversity of our planet.

Therefore, sustainable practices help the planet breathe and are also beneficial for human beings.

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Answer:

probably on the sun

Explanation:

the explanation is because she weighs 50 kg on the earth. She would weigh less on the moon since the moon has less gravity to pull her down. The sun is the best answer considering that it has the most gravitational pull than the earth and the moon

Answer:

albert

Explanation:

because if you get their mean/avergae it is around 7lbs and albert being the lightest baby from the ideal he might have growth problems because having alot of weight can also result to baby fat or can be shaped to new in future