Answer:
the guy above is wrong the actual answer is C
Explanation:
The best for a student to add to the water is a substance that releases heat when it reacts with water. Thus, the correct option is C.
What is an exothermic reaction?When a chemical reaction takes place, energy is transferred to or from the surrounding in the universe. When the energy is transferred to the surrounding, there is a loss of energy, this reaction is called an exothermic reaction, and the temperature of the surrounding increases during this reaction.
The process of dissolving a substance is exothermic when more energy is released when water molecules bond to the solute particles in the solution than is used to break the solute particles apart. Because, more energy is released than is used in this process, the molecules which are present in the solution move faster, and thus results in an overall increase in temperature.
Therefore, the correct option is C.
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Bitcoin mining is detrimental to the environment because it requires a lot of which of the following?
A. Child labor to get them to go down tunnels and mine Bitcoins with their pick axe.
B. The animals in the habitat may fall in the mining hole.
C. The carbon footprint is immense through Bitcoin mining.
Answer:
C
Explanation:
Bitcoin mining has increased power usage and carbon footprint.
A group of students wants to study the structures of animals in the desert. One question they should ask is-
How long do the animals live?
Can you buy the animals in pet stores?
How do the animals satisfy their need for water?
How many offspring do the animals have?
Answer:
Jdjdjdj
Explanation:
Animals survive in deserts by living underground or resting in burrows during the heat of the day. Some creatures get the moisture they need from their food, so they don't need to drink much water, if any. Others live along the edges of deserts, where there are more plants and shelter.
Even though deserts don't get much rain, the desert is a habitat for some plants and animals. Each species has adapted to be able to live in a range of temperatures and without much water. ... Animals that live in deserts include lizards, geckos, toads, jackrabbits, camels, snakes, spiders and meerkats.
The ribosome attaches amino acids together after they are brought by the tRNA to the translation site. Once a ribosome puts together the amino acid chain, the chain then fold or coils. This first folding or coiling of the amino acid chain is called the ______.
a. quaternary structure
b. tertiary structure
c. secondary structure
d. primary structure
Marcus grew three rosemary plants. He put one in
direct sunlight, one in the shade, and one in the
dark. The plant in the sun grew the most quickly
and looked the healthiest. Marcus concluded that
rosemary plants grow best in the sun.
How would you evaluate Marcus's conclusion?
O A. His conclusion is valid because his
experiment included a control.
B. His conclusion is valid because he tested
only one variable.
O C. His conclusion is flawed because he did
not perform enough trials.
O D. His conclusion is flawed because it is
based on the appearance of the plants.
Answer:
His conclusion is flawed because he did
not perform enough trials.
Explanation:
i jus took the test
What is the relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C?
Answer:
The amount of moisture air can hold is dependent on its temperature and pressure. The warmer the air the greater the quantity of water vapour it can contain. The air temperature is measured with a normal thermometer this is the Dry-Bulb reading. The actual amount of moisture known as the mixing ratio is measured in grams of water per kilogram of dry air. When air at a certain temperature is saturated it cannot hold any more moisture. The relative humidity of the air is the ratio of the actual amount of moisture in the air to the fully saturated amount.
We can use evaporation to measure the amount of moisture in the air. A wet cloth is placed over the bulb of a thermometer and then air is blown over the cloth causing the water to evaporate. Since evaporation takes up heat, the thermometer will cool to a lower temperature than a thermometer with a dry bulb at the same time and place. The depression in Wet-Bulb temperature allows the humidity to be calculated. If the air is fully saturated (100% relative humidity) the water cannot evaporate, so both the wet and dry bulb temperatures are the same. If the dry and wet bulb temperatures are set to the same value the calculator will show the saturation mixing ratio the amount of water in saturated air at that temperature.
If partly saturated air is cooled without changing its pressure or amount of water vapour, a point is reached when it becomes saturated. The moisture will be given up as dew or ice crystals. This temperature is the Dew Point. This is why condensation will form on a bottle of cold beer, as the air in the vicinity of the bottle is cooled below its dew point. Meteorological reports usually quote the temperature and dew point as well as the station pressure. Moisture content and relative humidity can be calculated from these figures.
The Psychrometer is the name of a device containing both a wet and dry bulb thermometer. This can be a fixed device for meteorology or a handheld sling psychrometer that is often used in air conditioning applications.
Explanation:
The relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C is 45.1%.
Psychrometer:
It is a device that use to calculate the relative humidity and dew. It has two thermometer, one measures the dry temperature while another measures the wet-temperature.
Given here,
Dry-bulb temperature is 26°C
Wet-bulb temperature is 18°C
The difference between temperature of wet and dry bulb is
= 26 - 18 = 8°C
Now compare the temperature difference to the chart given in the
Therefore, the relative humidity if the dry-bulb temperature is 26°C and the wet-bulb temperature is 18°C is 45.1%.
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I need a small text (about 50 words) for the human brain.
Answer:
The human brain is the command center for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles. The human brain has the same basic structure as other mammal brains but is larger in relation to body size than any other brains.The largest part of the human brain is the cerebrum, which is divided into two hemispheres, according to the Mayfield Clinic. Underneath lies the brainstem, and behind that sits the cerebellum. The outermost layer of the cerebrum is the cerebral cortex, which consists of four lobes: the frontal, parietal, temporal and occipital. [Nervous System: Facts, Functions & Diseases]
Like all vertebrate brains, the human brain develops from three sections known as the forebrain, midbrain and hindbrain. Each of these contains fluid-filled cavities called ventricles. The forebrain develops into the cerebrum and underlying structures; the midbrain becomes part of the brainstem; and the hindbrain gives rise to regions of the brainstem and the cerebellum.
Explanation:
Which of the following resources are used the most in the US.
Coal
Natural Gas
Oil
Nuclear Energy
Solar
Wind
Hydropower
Geothermal
Biomass/biofuel
Which of the following is NOT evidence of evolution?
Question 2 options:
Fossils
Carbon Flow Dynamics
DNA Sequences
Biogeography
Answer: Carbon flow dynamics
Explanation:
Which is not a reason for biodiversity in an ecosystem.
A. Organisms can adjust to environmental changes
B. The ecosystem provides a variety of food for organisms
C. Water scarcity
Answer:
C
Explanation:
it's water scarcity because biodiversity is variation among a group of populations. water scarcity would kill out animals and diminish biodiversity in an area
Answer:
C. Water scarcity
Explanation:
Hope you have a great day :)
how forests can be better managed ?
deposits of coal have been found beneath the ice of Antarctica. But coal only forms from warm swamps. How can coal be found so near the South Pole?
I NEED HELP ASAPPP PLEASE
C. When the arm extends (straightens), which muscle contracts?
Explanation:
When your biceps muscle in your upper arm contracts, it pulls your lower arm in towards your shoulder. However, when it relaxes, your biceps cannot push your arm back out. To do this, your triceps muscle, on the underside of your upper arm, contracts and straightens your arm out.
Answer:
When your biceps muscle in your higher arm contracts, it pulls your lower arm in to your shoulder. when it relaxes, your biceps cant push your arm back out. and straightens your arm out.
Explanation:
In the space below, summarize the process of sexual reproduction in unicorns to explain how offspring are produced. Include and highlight the following terms in your summary: Diploid, Fertilization, Gametes, Haploid, Interphase, Meiosis
Answer:Sexual reproduction allows some of the genetic information from each parent to mix, producing offspring that resemble their parents but are not identical to them. In this way, sexual reproduction leads to variety in the offspring. Animals and plants can reproduce using sexual reproduction.
How is information for a specific protein carried on the DNA molecule?
a. as a sequence of nucleotides
b. in the double helix shape of the condensed chromosome
c. in the ratio of adenines to thymines
d. as a pattern of phosphates and sugars
Answer:
b
Explanation:
Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. ... In eucaryotes, DNA is contained in the cell nucleus.
The information for a specific protein is being carried on the DNA molecule as a sequence of nucleotides. Hence, option (a) is the correct answer.
Nucleic acids are of two types. They are namely deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA molecule carries the information for a specific protein. They are described as follows:
DNA is the genetic material of the cell DNA molecules undergo a process called transcription to code for codons on mRNA strand These codons tend to pair with tRNA molecule which holds the amino acids The amino acids will then form a chain in the sequence of DNA nucleotides to result in protein formationThus, we can conclude that the information for a specific protein is being carried on the DNA molecule as a sequence of nucleotides. Thus, option (a) is the correct answer.
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Respiratory system, circulatory system, what stuck, digestive system, and how do they work together?
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Horses have three basic coat colors: red (or chestnut), bay, and black. All the colors are controlled by the interaction of two genes, Extension (E) and Agouti (A). The following combinations produce bay color: EE/Aa, Ee/Aa, EE/AA, Ee/AA. Only two produce black color: EE/aa, Ea/aa. Other combinations of the alleles of these genes plus mutations of others result in many possible coat colors and patterns in horses
Coat color in horses is an example of which type of inheritance?
(1 point)
A. polygenic inheritance
B. dominant inheritance
C. Mendelian inheritance
D. recessive inheritance
Answer:
A. Polygenic inheritance
Explanation:
When the qualities or the attributes are passed from the parent to their progeny is called inheritance. It can be passed either sexually or asexually.
The correct answer is:
Option A. Polygenic inheritance
This can be explained as:
When a trait is regulated by two or more genes is called polygenic inheritance.Dominant inheritance occurs when the qualities from the parent possessing the dominant gene pass to the progeny.According to Mendelian inheritance paired genes assorts independently and are passed from parent to their progenies.Therefore, coat colour in horses is an example of polygenic inheritance.
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PLEASE HELP WILL MARK BRAINLIST The group of animals (a pod of orcas) shown below is an example of What level of organization? Community Population Ecosystems Individual
Answer:
The answer is likely population or community
Explanation:
the reason that it is not an ecosystem is because an ecosystem is more than just than group of animals itself it also includes the water and things growing underneath it. The reason that it is not an individual is because there is more than one there (a group).
2. What type of Protist has hair-like coverings that help it move around?
Answer:
Paramecium
Explanation:
Paramecium use cilia, which are hair-like extensions that cover the outside of the cell
Help Me Please I will mark Brainliest whoever answer first and quickly
Answer:
To help ribosomes make proteins
Answer:
to help ribosomes make protein
Explanation:
it transports synthesised proteins from the ribosomes in vesicles
PLEASEEEEE HELP!!
Prokaryotic cells have (12b.DOK1)
Question 16 options:
A). chloroplasts
B). genetic material
C). nucleus
D). mitochondria
Answer:
B
Explanation:
All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles.
Answer:
B genetic material
Explanation:
Eukaryotic cells have chloroplasts, nucleus, and mitochondria but prokaryotic cells are cells that are like bacteria which don't have the stuff that Eukaryotic cells have
Explain how a school bus uses all of these energy types.
-Mechanical
-Chemical
-Electrical
-Thermal
Answer:
Mechanical
94 percent of all school buses in America are powered by diesel engines because of their reliability, durability and safety. Almost half of these (46 percent) rely on the cleanest, near-zero emission diesel engine technology.
Chemical
school bus uses petroleum as chemical potential energy.
Electrical
An electric bus draws electricity from the power grid and stores it in a battery that can be recharged once the electricity has been used up. This basically mirrors the way our electronics work. We plug them in and let the battery charge and then use them wirelessly until it's time to charge again
Thermal
They heat the cold coolant from engine's block to 160° F in as little as one hour, then pump it back to the vehicle's engine and heat exchangers. The result: engine is preheated and the vehicle's heat exchangers distribute an abundance of heat to the vehicle's interior.
Name one part of the cell that is referred to as the smallest yet very vital part of the cell. This part is where the energy is stored and is also referred to as the
powerhouse.
Suggest reasons for the color patterns of the frog and its lack of color on the ventral surface.
Answer:
To save itself.
Explanation:
The color patterns of the frog and its lack of color on the ventral surface allows the frog to protect itself from their predators because the frog changes its colour and the predators are unable to see them. The color patterns of frogs and their lack of color on the ventral surface allow frogs to escape from their predators. If the frog does not change its colour, the predators will see them and the frog will be catch by its predators and feed on them so this is the reason that frog changes colour or the presence of colour patterns.
What is the function of the structure identified by the red arrow?
Mobility
Protection
Reproduction
DNA transfer
Answer:
I'm not entirely sure, however, since no one has answered your question yet, I'll say A. Mobility
This thing probably moves around, and it doesn't look like it could protect it, or anything.
Answer:
The answer is Mobility.
Explanation:
Took the test.
meaning of cell or cytology
Answer:
the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
Explanation:
Cell is the building blocks of life.
Name one basic characteristic for classifying organisms.
If you are sure then only give the answer otherwise you can leave.
Answer:
The more basic characteristic for classifying organisms is the kind of cells they are made of because different organisms may share same habitat but may have entirely different form and structure.
I hope it's helpful for you...
Why does our sun appear to be bigger than all of the other stars?
A.The sun is much hotter than other stars.
B.The sun is the closest star to the earth.
C.The sun's color is yellow which is the brightest, most visible star.
D.As light travels from the other stars, it gets reflected.
A person who is interested in finding a cure for diabetes, in which the pancreas does not produce insulin, might pursue a career in A.Endocrinology B.Gene therapy C.Neuroscience D.Sports medicine 2 See answers
Answer:
The answer is: A.
Explanation:
A person who wants to find a cure for diabetes might pursue career in endocrinology. Endocrinology is a branch of biology and medicine dealing with endocrine system and diseases that occur due to hormonal disorders, and disorders of the hormone secretion. The disorder of insulin secretion hormones causes diabetes, and this hormone produces pancreas. In addition, endocrine disorders can be, growth disorder in children, adrenal gland disorders, testosterone levels disorder, etc.
what is sodium E621 know as MSG is
Answer:
MSG is short for monosodium glutamate. It is common food addictive-with the e-number E621 that is used to enhance flavor.
Explanation:
MSG is derived from the amino acid glutamate or glutamic acid, which is one of the most abundant amino acids in nature.
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Answer:
Weather: "Hurricane", "Lightening", "Tornado", "A pattern of changes happening around the world over many years", "Tells you how to dress for that day", "Heat wave", "Specific event or condition that happens over a period of hours or days", "Short Term", "A thunderstorm, a snowstorm, and today's temperature", "Include wind, temperature, humidity, atmospheric pressure, cloudiness, and precipitation", "The condition of the atmosphere at a particular place and time".
Climate: "The average weather conditions in a place over many years", "Highly variable day to day, and from one year to the next", Minneapolis is cold and snowy in the winter, while Miami's is hot and humid", "Tells you what wardrobe to own", "Usually taken over 30 plus years", "Annual Rainfall", "Drought", "Long Term", "Ice Age", "Determined by lattitude, bodies of water and altitude".
Explanation:
