Answer:
alkaline earth metals
MgBr2
How many atoms of each element are in this compound?
A. 2 magnesium atoms and 2 bromine atoms
B) 2 magnesium atom and 2 bromine atoms
C) 2 magnesium atoms and 1 bromine atom
D 1 magnesium atom and 2 bromine atoms
Answer:
D
Explanation:
Convection currents transfer thermal energy ___? A. Between continents B. From cooler regions to warmer regions C. From warmer to cooler regions D. As a result of buoyancy
Hello There!
"Option C"
Convection currents transfer heat from warmer regions to cooler regions
Convection currents transfer heat from one place to another.
Convection currents transfer thermal energy from warmer to cooler region.
Option C
Explanation:
Thermal energy is transferred by convection from hot places to cold places. It is form of "kinetic energy" that is transferred as heat. When the hot liquid or gas becomes cool liquid or gas then convection happens. Then the cooler gas or liquid will goes to the place of hotter gas or liquid. This results in a "continuous circulation sequence".
"Water boiling" in a beaker is one of good examples of these "convection currents". Atmosphere is also example of convection. The Earth surface gets heat by sun the warm or hot air rises and cool air moves in. Other options are incorrect as thermal energy transfers from warm to cool places by convection.
which characteristics are typical of a human population in the postindustrial stage?
The correct answer is emerging adulthood.
Answer:
Post-Industrial stage:During the post-industrial stage, the human population experienced a high birth rate, as there were more secure procedures and there were more medical facilities for the patients.
Explanation:
High Birth rate:Research work was performed in doing safe new born deliver, along with that more advance instruments were developed creating it more easy for any doctor or nurse to apply the procedures easily. As, before there was lack of procedures and there were less advance instruments in order to carry out the whole process of delivery.
Innovation of new and effective medicines:As there were research works carried out by medical personnel to improve the effectiveness of medicines, which eventually resulted in cure for more diseases. As there were less number of deaths caused due to illness or any disorder inside the human body.
Increase rate of literacy:There was increase in the literacy rate in the different regions around the globe. As now there were many institution and schools that was offering quality education to the masses.
More places to live safe and with convenience:There were more places for the people around the globe to live, as there were strong structures been built in the shape of buildings and then after that it went on to increase the level of convenience for people to live safely.
Which statements summarize absolute and relative age? Check all that apply.
Relative age involves a comparison.
Actual age is in relation to the age of something else.
“I am 35 years old” is a statement of absolute age.
Rocks can be dated using both absolute age and relative age.
Geologists use both absolute dating and relative dating.
Answer:A,C,D,E
Explanation:
Absolute age is the actual age of something, while relative age involves comparison. Geologists use both absolute and relative dating methods to study Earth's history.
Explanation:Absolute age is the actual age of something, measured in years. An example of a statement of absolute age is 'I am 35 years old.' On the other hand, relative age involves comparing the age of one object or event to another.
Geologists use both absolute dating, which uses radioactive isotopes to determine the numerical age of rocks, and relative dating, which helps them establish the sequence of events in Earth's history. Both methods have advantages and limitations, and they are used together to create a more complete understanding of geological time.
what r some adaptions that help animals who live in the Alpine biome survive
Animals in the Alpine biome have adapted to survive temperature fluctuations through migration, like the Arctic Tern, Monarch butterflies, and Reindeer. Others, like the Snow Leopard and Cheetah, have physical adaptations such as thick fur and fast speed. Still others use behavioral adaptations like mimicry and camouflage.
Explanation:Animals living in the Alpine biome have developed several interesting survival adaptations. Temperature fluctuations are a major challenge they face which many of them have adapted to by adopting a strategy of migration. For example, the Arctic Tern makes a 40,000 km round-trip flight each year between both hemispheres to find food and suitable breeding grounds while Monarch butterflies and Reindeer also migrate significant distances for similar reasons.
Some other kinds of adaptations include physical changes to their body. For instance, the thick fur of Snow Leopards is an adaptation for surviving in cold conditions and a Cheetah's fast speed helps it catch prey effectively. Besides these, there are also behavioral adaptations like mimicry and camouflage which animals employ for survival.
However, not all animals migrate because of the risks and high energy costs associated with migration. Also, some classes of animals like amphibians and reptiles are more limited in their distribution because they generally lack migratory ability.
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2. a) Name one way the light reactions and dark reactions are similar and one way they are different.
Answer:
Answer is as follows
Explanation:
Similarities:1. They are similar as energy is the main source in these both reactions.
Differences:1. In light reactions energy is taken from sunlight while in dark reactions the created energy in light reactions is used.
Final answer:
The light reactions and dark reactions of photosynthesis are similar in that they both contribute to the process of carbohydrate synthesis in plants. They differ in that light reactions need sunlight to produce ATP and NADPH, while dark reactions do not, using these molecules to fix CO₂ into carbohydrates.
Explanation:
One way the light reactions and dark reactions (Calvin cycle) of photosynthesis are similar is that both processes are crucial for the synthesis of carbohydrates in plants. Both sets of reactions are part of the overall process of photosynthesis, which is how plants convert light energy into chemical energy stored in glucose. A key difference between the two is that light reactions require sunlight to produce ATP and NADPH, while dark reactions do not require light and instead use the ATP and NADPH produced by the light reactions to fix carbon dioxide into carbohydrates like glucose. The light reactions occur in the thylakoid membranes of the chloroplasts, whereas the Calvin cycle occurs in the stroma of the chloroplasts.
Being able to roll the tongue is dominant over not being able to roll the tongue.
R R
r Rr Rr
r Rr Rr
What is the probability that the offspring will be unable to roll the tongue?
0
2
3
4
According to the Punnett Square and the information given above, the probability of offspring that will be unable to roll the tongue is 0%. Thus, option A is correct.
What is Probability?Probability may be defined as something that is likely to happen at random. It is the likelihood of any event.
For determining the ability to roll the tongue, only one dominant allele is required but to possess an inability to roll the tongue both the recessive alleles of a trait are required for the expression.
Therefore, it is well described above.
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Jellyfish release the egg and sperm into the sea. The fertilized egg settles down on the sea floor and grows into a polyp. When polyps bud, they form a medusa, which develops into the jellyfish. What is this process of reproduction called?
it doesnt really saw what it is called for a jelly fish to mate other than the madusa and polyps thats it i hope this helps some whatExplanation:
Which statement is true?
A. Opinions can be scientifically tested.
B. Scientific theories are absolute and cannot be changed.
C. Scientists have learned all they’ll ever know about science.
D. Facts can be scientifically tested.
Answer:
D. Facts can be scientifically tested.
Explanation:
Facts are true at all times, or else they are not facts. This means that they will be correct when put against the test, whether in an experiment or through history. If it is not consistent, it is not a fact, but a theory.
~
Answer: D is correct, facts can be scientifically tested
During which phase does Earth see more than half of the moon's surface?
1)first quarter
2)third quarter
3)waxing gibbous
4)waning crescent
Answer:
Waxing gibbous
Explanation:
During which phase does Earth see more than half of the moon's surface?
3) Waxing gibbous
In waxing gibbous phase Earth see more than half of the moon's surface
What is waxing gibbous?The Waxing Gibbous phase occurs when the illuminated portion of the Moon increases from 50,1% to 99,9%. Up till the Full Moon, it lasts from the time right after the First Quarter Moon. Gibbous refers to the oval to circular form, whilst waxing denotes that it is growing in size. It might be difficult to distinguish the Waxing Gibbous Moon from a Full Moon as its lighted portion increases to 98–99 percent.
The Waxing Gibbous Symbolizing the last actions you must do to complete your task or complete the job. It's the moment when you can finally make out the light at the end of the tunnel, and it's also the time to push yourself to the limit and finish what you've begun before the Full Moon so you may bask in the glory of your passion project.
You may feel the impulse to refocus your life or a project during the Waxing Gibbous Moon. It's crucial to not battle this emotions. Only positive things will occur if you embrace it and trust it rather than resist it. It's likely that some sacrifices may be needed to reap the revaluation.
What is Earth?The only cosmic object known to have life is Earth, which is located third from the Sun. Although the Solar System contains large quantities of water, only Earth has liquid surface water. The ocean covers around 71% of Earth's surface, dwarfing its lakes, rivers, and polar ice. Land, made up of continents and islands, makes up the remaining 29% of the Earth's surface. Mountain, volcanoes, and earthquakes all are results of the friction between the tectonic continental plate the Earth's surface layer. The magnetic force that forms Earth's magnetosphere and deflects harmful solar winds is produced by the liquid outer core of the earth.
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Some protists can reproduce both sexually and asexually. What's a major advantage of each
Answer:
Sexual reproduction responsible for genetic diversity, and asexual reproduction is fast and rapid.
Explanation:
Sexual reproduction is a type of reproduction, that involves producing new organisms by recombination of the genetic information from 2 organism s of opposite sexes. Genetic diversity is major advantage, the new organism is formed by recombination of the genetic material of both the parents.
Asexual reproduction involves producing new organisms from a one of a parent having exact similar genetic makeup like the parent cell. It produces higher number of offspring in a rapid manner.
Which of the following diseases might be susceptible to antiviral drugs?
A. African sleeping sickness
B. Chickenpox
C. Tuberculosis
D. All of the above
Answer A
Explanation:
Which of these statements describes one way that a non renewable resource is obtained
Answer: Option (A)
Explanation: Non-renewable resources are those that are very limited in amount and cannot be regenerated after consumption. They are also known as the conventional energy. For example, Petroleum, Crude oil and Natural gas.
From, the above given question, the best suitable answer is option (A) in which the non-renewable resource crude oil is being obtained from a rig.
Answer: A.
Explanation:
what is the region of earth that provides support for all living things
Answer:
Biosphere
Explanation:
Answer:
The biosphere is the region of the Earth that supports all living things
Explanation:
hope this helps.
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Parasitism could be considered a form of which of these types of relationships?
-Mutualism
-Commensalism
-Predator-Prey
-Mimicry
Answer:
I think Commensalims just tell me if I am wrong
Answer:
The correct answer is option - predator-prey.
Explanation:
Parasitism is the relationship between two different organisms in which one is the host and the other called parasite. The host is the one who gets harm by the parasite, whereas parasite takes it food and nutrition from the host and get benefited.
Parasitism and predator-prey relationship are similar to the one get benefited and other loose life or get harm in such a relationship.
Thus, the correct answer is option - predator-prey.
Describe the roles of light, carbon dioxide, and water in photosynthesis.
Answer:
What is the role of carbon dioxide and water in the process of photosynthesis?
During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).
Explanation:
Which two hypotheses can be supported with quantitative data?
A) People who eat low-protein diets are more likely to have less muscle mass.
B) It’s ethical to eat a vegetarian diet.
C) People are happier during the summer than during the winter.
D) Eating an organic diet makes people feel better.
E) Eating less salt lowers blood pressure over time.
he release of stored energy from rocks that are deformed by stress is called elastic _____.
rebound
shock
pressure
friction
Answer:
The release of stored energy from rocks that are deformed by stress is called elastic rebound.
A. Rebound. The elastic rebound theory explains how energy spreads during an earthquake.
I hope this helps! :)
Heat moves through the atmosphere through the process of
A. convection
B. conduction
C. radiation
D. refraction
Answer:
Option (A)
Explanation:
In the atmosphere, the convection of heat takes place. The heat energy is trapped more abundantly and tightly near the surface of the earth, as a result of which the air near the earth's surface gets heated up and becomes less dense. Due to this, the warm air rises upward and as it moves upward, it slowly cools due to the decreasing temperature. It then forms a low-pressure zone and the denser air falls back. This process takes place repeatedly, as a result of which convection cells are formed. This carries the heat upward and downward in the atmosphere.
Thus, the correct answer is option (A).
"The correct answer is C. Heat moves through the atmosphere through the process of radiation.
Heat transfer through the atmosphere can occur through several processes, including convection, conduction, and radiation.
A. Convection involves the movement of heat by the physical movement of fluids, such as air or water. This process is common in the atmosphere, where warm air rises and cool air sinks, leading to the circulation of heat.
B. Conduction is the transfer of heat through a solid material, where heat energy is directly passed from one molecule to another. While conduction is important in the transfer of heat within solid objects or between objects in direct contact, it is not the primary way heat moves through the atmosphere.
C. Radiation is the process by which energy is emitted as electromagnetic waves. The sun's energy reaches the Earth through radiation, and the Earth and its atmosphere also emit radiation. This process does not require a medium to travel through, so it is the primary way heat moves through the vacuum of space and is also significant in the atmosphere.
D. Refraction is the bending of light (or other waves) as it passes through materials with different refractive indices. Refraction is not a heat transfer mechanism but rather a change in the direction of wave propagation.
Therefore, the process of radiation is the correct answer for how heat moves through the atmosphere, as it can occur in the vacuum of space and does not rely on the physical movement of air particles."
The plasma membrane is
Hello There!
The plasma membrane is an important membrane. It’s job is to maintain proper concentrations of materials inside the cell.
Some fish and amphibians have _____, which detect electrical fields that help them navigate through dark, murky waters. photoreceptors olfactory receptors electroreceptors thermoreceptors
Answer:
Electroreceptors
Explanation:
Fishes and some of the amphibians are aquatic animals. They live in water and water is good conductor of electricity. Due to this property of water, fishes and amphibians use their electroreceptors to detect electrical fields. This helps them to find location and food and can take preventive measure against their enemies.
what is an allele????
Answer:
The short answer is that an allele is a variant form of a gene.
Explanation:
Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent. The copies, however, are not necessarily the same. When the copies of a gene differ from each other, they are known as alleles. A given gene may have multiple different alleles, though only two alleles are present at the gene’s locus in any individual.
PLEASE GIVE ME BRAINIEST
An allele is one of multiple forms of a gene that exists at the same location on a chromosome and is responsible for the variety observed in the traits of organisms. Alleles can give rise to different phenotypes, which depend on their combination in the genotype of an individual. The expression of alleles can follow different patterns like incomplete dominance or codominance.
An allele is one of two or more alternative forms of a gene that arises by mutation and are found at the same place on a chromosome. Alleles can lead to different phenotypes, or observable traits, in an organism. For instance, a gene that determines flower color in a plant might have two alleles, one resulting in red flowers and the other resulting in white flowers. The combination of alleles that an organism has, known as its genotype, directly impacts its phenotype. Different patterns, such as incomplete dominance or codominance, can influence the outcome of an organism's phenotype when two different alleles are present.
In cases of incomplete dominance, the phenotype of the heterozygous genotype (where two different alleles are present, such as Aa) is often intermediate between the phenotypes of the homozygous genotypes (where two of the same alleles are present, such as AA or aa). Codominance is a condition where both alleles of a gene pair in a heterozygote are fully expressed. For instance, the AB blood type in humans is a result of codominance, where both A and B alleles are expressed.
If the number of cigarettes smoked increases, then the risk for lung cancer increases.
Independent variable: _______
Dependent variable: _______
The independent variable is the number of cigarettes smoked, and the dependent variable is the risk for lung cancer.
Explanation:In this question, the independent variable is the number of cigarettes smoked. It is the variable that the researcher intentionally manipulates in order to see its effect on another variable. The dependent variable is the risk for lung cancer. It is the variable that is being measured and observed to see how it changes in response to the independent variable.
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Once an egg cell is fertilized by sperm, the cell _______.
Then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood.
A.
becomes a fetus immediately and exits the womb
B.
begins to divide and implants itself in the wall of the uterus
C.
remains in the uterus without dividing for several months
D.
travels back to the ovaries until the fetus is developed
i think its B. begins to divide and implants itself in the wall of the uterus
Match the type of of evidence for evolution with the correct example.
Answer: 1) vestigial structures 2) Analogues structures 3) DNA sequence data 4) Homologues structures
Explanation: vestigial structures also called vestigial organs, lost their function in some organisms whereas playing a important role in others.
Analogue structures have different structures but same function.
DNA sequencing is a method which is used to check similarities among different group of organisms.
Homologues structures have same structure with different functions.
Answer:
Homologous structuresAnalogous structuresDNA sequence dataVestigial structuresExplanation:
Evidence of evolution is the physical and biological characteristics that supports the theory of evolution, it may be:
AnatomicalMolecular biologyBiogeographyFossilsDirect observationBRAINLIEST !PLEASE PLEASE PLEASE ANSWER THIS! I'M CRYING SO BAD RN. You might need to flip the pic
Answer:
You could “design” a home that uses solar energy instead of fossil fuels.
Solar energy is a great replacement to fossil fuels because it is abundant everywhere in the world, does not run out, does not release pollutants/contribute to global warming, and is always available.
You did not use wind or water energy because they are not as widely accessible or as easy to utilize as solar energy. Both require large instillations of intricate machines/systems in specific areas with water sources or high winds.
People will probably have solar energy in their homes in the future because it is efficient, accessible, and abundant.
How many Atoms does a human have?
Answer:
About 7 x [tex]10^{27}[/tex]
Which of the following is the best definition of aerobic respiration?
O
A. The cellular process that releases energy by breaking down
glucose
O
B. Physical activity that involves the repeated motion of large muscle
groups
O
C. Physical activity that increases heart rate and breathing rate
O
D. The cellular process that converts solar energy to chemical energy
The best definition of aerobic respiration is cellular process that releases energy by breaking down glucose.
CELLULAR RESPIRATION:
Cellular respiration is the process by which living organisms obtain energy (ATP) by breaking down food molecules in their cells.Cellular respiration is a metabolic process undergone by every living cell. It occurs aerobically in the presence of oxygen, which is used to breakdown glucose molecules. Therefore, the best definition of aerobic respiration is cellular process that releases energy by breaking down glucose.Learn more at: https://brainly.com/question/13721588?referrer=searchResults
All of the following are examples of physical properties EXCEPT
a melting point
b. hardness.
c. ability to burn
d. density
Answer:
C. the ability to burn
Explanation:
Physical properties tend to include color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction or repulsion , magnets, opacity, viscosity and density. And hardness is obviously physical
If blood is in short supply which blood type would be the most Beneficial to have on hand if someone needed a blood transfusion?