Because Tibetans live in high-altitude mountains, which of the following is an adaptation they may experience?

Answer:

D.) pleiotropy

Explanation: Just took the quiz.

Pleiotropy arises when one gene affects two or more seemingly unrelated phenotypes. A pleiotropic gene expresses many phenotypes. Therefore, option (D) is correct.

What is Pleiotropy?

When one gene influences two or more phenotypic qualities that do not appear to be related to one another, this phenomenon is known as pleiotropy. A gene is said to be pleiotropic if it can exhibit many phenotypic expressions in a single organism.

Phenylketonuria is a condition that serves as a straightforward illustration of a pleiotropy. A slow metabolism of the amino acid phenylalanine in the cells of the body is the root cause of this hereditary condition, which causes phenylketonuria.

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Answer:

1. Check your pulse before doing the stair master. Do 2 minute intervals on the stair master then check your heart rate again. What is the difference between your heart rate before and your heart rate now?

2. Going up the stairs for 2 minutes and looking at heart rate differences is the expierement. This should last about 10 minutes. An oximeter needs to be used for best results on the heart rate. The excercise should be as consistant as it can be.

3. Your heart rate should keep increasing until you reach your max heart rate

4.  2: 72

    4: 78

    6: 82

    8: 100

    10: 118

5. just copy numbers into graph

6. My predictions were pretty accurate. Your heart rate should gradually rise until you hit your max heart rate. The body needs more oxygen to maintain homeostasis which leads to increased heart rate. I didn't track how fast we were going every 2 minutes (I didn't stay at the same speed as I did in the beginning). Not changing the speed as time goes on and monitering the speed. 

Explanation:

This is all in my own words but you can still rephrase on quillbot. Happy cheating :)

Answer: In most cases, an O parent and an AB parent will have only A or B kids. It is only very rarely that they might have an AB or an O child.

Winter ❄️

Explanation:

It had been really cold which could affect our health. We will be most likely to catch a cold . Catching a cold is not a really good feeling.

Answer: T T A A G C G G C CA TAA T C T G CTT

Explanation: The A's always pair with T's.    The G's always pair with C's.

Answer:

B. the Earth being tilted on its axis while it revolves around the Sun.

Answer:

Seasons occur because Earth is tilted on its axis relative to the orbital plane, the invisible, flat disc where most objects in the solar system orbit the sun. ... In June, when the Northern Hemisphere is tilted toward the sun, the sun's rays hit it for a greater part of the day than in winter.

Explanation:

your answer is B.

Answer:  

Image result for what is the life cycle of a liverhook​

Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.

Explanation:

Answer:

The endoplasmic reticulum

Explanation:

It is not the lysosome because their processes are degrading and recycling cellular waste, and involved in energy metabolism

It is not the cytoplasm because the cytoplasm doesn't do anything itself, it just provides an environment for the rest of the organelles to do their job

It is not the ribosome because the amino acid chain left the ribosome in the question

For secretory, plasma membrane, and organelle proteins, the endoplasmic reticulum (ER) is a significant protein folding compartment. Thus, option C is correct.

A polypeptide chain cannot acquire its right structure and function without protein folding.

Chaperones are HSP that aid in protein folding. Chaperonins are multimeric complexes that fold proteins by forming hollow structures.

Numerous general activities of the endoplasmic reticulum include transporting produced proteins in vesicles to the Golgi apparatus and folding protein molecules into sacs termed cisternae.

Therefore, Endoplasmic Reticulum folds, modifies, and transports the protein.

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The experiment to help Lillian's parents will consist of planting various carrots using both kinds of fertilizers, and maintaining a constant carrot type, amount of light, and amount of water throughout each plant.

In order to perform an accurate experiment, we need to identify three kinds of variables:

In an experiment, the Independent variable is one whose value does not depend on the others. What this means is that this variable will not react to changes that occur in others. In this experiment, the independent variable is the fertilizer, given that it is not affected by the species of carrot, type of soil, or any other variable present.

The dependent variable in an experiment is just the opposite, it is, as the name implies, a variable whose value depends on the other variables present. In an experiment, this variable represents the data that we seek to measure. For this experiment, the dependent variable is the growth rate of the carrots because it is affected by the amount of water, light, and type of fertilizer we use, as well as being what we wish to measure.

Finally, the last variable we must identify is that of the control variable, also known as the constant or standardized variable. This variable is of vital importance for the accuracy of any experiment. This variable corresponds to those factors which we maintain constant through each trial in the experiment, for the example above, it is the amount of water and light, as well as the type of carrot, Lillian's parents will use.

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The study of ears, nose and throat is known as Otolaryngologist.

Otolaryngologist is a medical specialty focusing on ears, nose and throat. It is often called as an ear, nose and throat doctor or an ENT specialist.

This medical field dates back to 19th century  when doctors recognized connection of head with neck.

This field differs from general physician as the former perform different surgeries on the delicate and complex tissue of the head and neck.

They majorly focuses upon Ear, Nose, Throat, Head and Neck.

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Explanation:

electromagnetic waves: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.

radio waves: Radio waves are a type of electromagnetic radiation best-known for their use in communication technologies, such as television, mobile phones and radios. These devices receive radio waves and convert them to mechanical vibrations in the speaker to create sound waves.

microwaves: Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively.

infrared: Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark.

visible ray: The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 380 to about 750 nanometers

ultraviolet:UV radiation is widely used in industrial processes and in medical and dental practices for a variety of purposes, such as killing bacteria, creating fluorescent effects, curing inks and resins, phototherapy and suntanning. Different UV wavelengths and intensities are used for different purposes

xray:An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (30×1015 Hz to 30×1018 Hz)

gama ray :A gamma ray, also known as gamma radiation, is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei.

Answer:

The most abundant noble gas in atmosphere is Argon

Answer: A species of flower develops a gene that results in a more attractive nectar causing more pollinators to be attracted

Explanation: I think it’s that one and sorry if I’m wrong but to me the other choices don’t seem to fit as a hurricane kills 70% isn’t helping any organisms adapted and the other two choices no organisms is adapted but the first, the flowers have to adapt as they develop a new gene and it also affects pollinators

Answer:

You would experience 24 hours of it being night or darkness

Explanation:

it is more than 90 degrees away from the suns vertical ray

Hope this Helps

Answer:

it is made of phospholipid bilayer along with other various lipids, proteins, and carbohydrates

Explanation:

The pulmonary valve (sometimes referred to as the pulmonic valve) is a valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. It is one of the four valves of the heart and one of the two semilunar valves, the other being the aortic valve. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.

Answer:

Duramen - The central or inner dark coloured non-functional wood or secondary xylem, not takes part in the conduction of water is called Duramen or Heartwood.

Answer:dark hard position of secondary xylem is called​ Duramen

Explanation:

Answer:

D

Explanation:

any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.

Answer:

the circulatory system

Explanation:

for instance your heart, your lungs,your blood, and your blood vessels all work together as a team.

Answer:

I

Explanation:

tree

Answer:

organic molecules and carbon dioxide

Explanation:

Photosynthesis by land plants, bacteria, and algae converts carbon dioxide or bicarbonate into organic molecules. Organic molecules made by photosynthesizers are passed through food chains, and cellular respiration converts the organic carbon back into carbon dioxide gas. Cellular respiration does not affect the carbon cycle but is part of the carbon cycle. The 2 carbon cycles. carbon ( C ) is taken up by the plants and trees in the form of carbon dioxide ( CO2 ).

Answer:

Photosynthesis is the process whereas plants convert light energy into chemical energy, through cellular respiration. That can later fuel the organism's activity.

Equation: 6CO2 + 6H2O → C6H12O6 + 6O2

Explanation:

Answer:

Hey there,

Photosynthesis means,

The process of using carbon dioxide and water as raw materials to produce food with the help of light energy in the chlorophyll areas of the plant.

The chemical equation is attached to the picture.

Hope this helps you.

Let me know if you have any other questions :-)

Answer: 1, only one, it's a single DNA figure

Answer:

True

False

True

False

False

Explanation:

now you can give the other person brainliest :D

True

False

True

False

False

Pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes, and wildfires.

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Answer:

fisrt one is the answer most likely

Answer:

we need to focus on the 10 main threats to soil functions: soil erosion, soil organic carbon loss, nutrient imbalance, soil acidification, soil contamination, waterlogging, soil compaction, soil sealing, salinization and loss of soil biodiversity.

Explanation:

PLZ MARK BRAINLEST

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

Explanation:

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

Answer: Water

Explanation:

What is the ultimate source of electrons for photosynthesis?

In photosynthesis, water is the source of electrons and their final destination is NADP+ to make NADPH

Photosynthesis is a plant process to make food and energy. It includes various steps to release energy. The water molecule is the ultimate electron donor in the process.

Photosynthesis is said to be the process that converts solar energy into the chemicals that are used as the energy source in cellular respiration activities. Here, sunlight, carbon dioxide, and water act as reactants.

The carbon dioxide and water undergo splitting by the membrane pigments and then the electron produced from water is carried with enzymes to make NADP⁺. This is further used to make NADPH. As result oxygen along with the sugar molecules are produced and are rich in ATP.

Therefore, water is the foremost source of electrons for photosynthesis in plants.

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