Answer:
d. surface tension
Explanation:
i just got it right on acellus :)
What would be a good hypothesis and null hypothesis for this scenario?
Sally comes to work sick; two days later, three of her coworkers are also sick.
Answer:
Hypothesis: The increased period of exposure to the infected or sick individual (or pathogen carried by the sick individual) increases the number of individuals getting the infection and falling sick.
Null hypothesis: The increased period of exposure to the infected or sick individual (or pathogen carried by the sick individual) does not increase the number of individuals getting the infection and falling sick.
Explanation:
:) rate if it helps!
Which of the following is an energy conservation practice?
O Lower the thermostat's temperature in the summer.
O Run the washing machine with smaller loads.
O Use a fuel-efficient vehicle when traveling.
ORaise the temperature on a water heater.
The practice that is an example of energy conservation is using a fuel-efficient vehicle when traveling.
What is energy conservation?This refers to the action of reducing the energy that is consumed, which is positive for the environment.
Which option is an example of this concept?Using a fuel-efficient vehicle is an example of energy conservation because this type of vehicle consumes less energy or uses it more efficiently.
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The return of water vapor to a liquid form is called: condensation A. rain B. dew point C. evaporation D.
Answer:
condensation
Explanation:
What elements make up the skeletal system?
a.
Bones, joints, and connective tissue
b.
Organs, muscles, and bones
c.
Bones and fascia
d.
The pulmonary and systemic circuits
Answer:
A
the answer is A!!! good luck <3
Answer:
A. Bones, joints, and connective tissue
Explanation:
The skeletal system supports and protects the body while giving it shape and form. It is composed of bone, joints, ligaments, connective tissue, and cartilage.
Organs are not included, for they are not skeletal. Fascla is a sheet of connective tissue beneath the skin that attaches to, stabilizes, encloses, and separates muscles and other internal organs. It is not part of the skeletal system.
A systemic circuit is the path of circulation between the heart and the rest of the body. It too, is not skeletal.
Hence, the answer is A.
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Alfred Wegener first suggested the idea of Continental Drift, that all the continents were one joined together into one big land mass called Pangea. One piece of evidence for his idea was that the continents look like they once fit together like a puzzle. Explain one other piece of evidence that supported this idea.
Another piece of evidence to support Continental Drift theory is
3'AGGTCAGGT5' which is the correct complementary DNA for this segment?
Choose the description that best describes a virus
Answer:
A virus is an organism that can only live through its hosts.
The greenhouse effect is responsible for which environmental condition listed below?
A. Global warming
B. Thermal pollution
C. Photosynthesis
D. Clear cutting of rain forest
Answer:
A
Explanation:
It's because there tend to be mire carbon monoxide which is one of the contribution to global warming
Answer:
Global Warming
Explanation:
The greenhouse effect refers to when gases such as water vapor and carbon dioxide remain in the atmosphere they absord heat from the sun. Therefore, it is responsible for global warming which is the addition of more heat to our planet
Describe the relationship between DNA,
chromosomes, and genes.
The mechanical and chemical breakdown of food begins in the
Answer:
Mouth
Explanation:
The mechanical breakdown is the chewing, grinding, and tearing of the mouth, and the chemical breakdown is the enzymes in your saliva that break apart components in the food that make the food easier to digest.
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Kepler's second law using Mercury , which has an orbital period of about 0.24 and a semimajor axis of about 0.387 . Explain your findings .
As the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.
What is Kepler's second law?Kepler's second law of planetary motion describes the speed of a planet traveling in an elliptical orbit around the Sun.
This law exaplains the speed of planets around the sun, the speed of the planet increases as it nears the sun and decreases as it recedes from the sun.
From the findings, the astronomical unit of the Mercury is 0.387 and the orbital period is 0.24 year.
[tex]T \propto a^{3/2}[/tex]
[tex]T = ka^{3/2}\\\\k = \frac{T}{a^{3/2}}[/tex]
From the equation above, as the semimajor axis of a planet increase, the orbital period will decrease and the speed of the planet will decrease.
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Which statement describes a difference between electromagnetic waves and mechanical waves?
Explanation:
Mechanical waves do not transfer energy, but electromagnetic waves do. B. Mechanical waves cannot be longitudinal, but electromagnetic waves ..
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Which of the following influences how an animal interacts and functions in its environment?
Group of answer choices
Embryonic development
Genetic diversity
Body symmetry
Autotrophy
Answer: The tendency of one animal in a group to exert its social influence or presence over others in the group. Also referred to as social order or pecking order.
Explanation:
The following that most influences how an animal interacts and functions in its environment is its Genetic diversity. Option B. This is further explained below.
What is Genetic diversity?Genetic diversity is simply defined as the total amount of genetic features in a species' genetic composition is referred to as genetic diversity.
In conclusion, Genetic diversity is simply the factor that most determines how an animal interacts and performs in its surroundings.
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Blood also has the job of carrying away
waste.
What organ does the blood go through to
get cleaned?
A. the spleen
B. the small intestine
C. the pancreas
Where is aluminum found? OA. In metamorphic rock B. In sedimentary rock C. In igneous rock OD. In granite rock
Aluminum is found is igneous rock
Controlled burning is the intentional introduction of light fires into forest regions. What is the main benefit of controlled burning for human populations?
Answer: Pests and disease
Explanation:
Prescribed fire can directly reduce damaging insect and disease organisms that impact many ecosystems. Burning can also increases the resilience of forests to insect pests and diseases by reducing competing vegetation and enhancing the growth and defense of mature trees.
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Why would rapid change in climate potentially lead to ecological problems?
Most biome shifts lead to rain forest formation and shading out of native plants. Evolution is unlikely to occur quickly enough to keep pace with biome changes. Animals don't migrate fast enough.
All of the answer choices are correct.
Water availability will decrease, driving aquatic species extinct.
The rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.
What do you mean by Evolution?Evolution may be defined as the process of growth and development or the theory that organisms have evolved and developed from past organisms.
Biome changes occur due to the fact of evolution. Both evolution and biome changes synergistically move forward to support organisms' life in a much better way.
Therefore, the rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.
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Why do you think scientists would be interested in studying cognitive behavior in animals?
Animals are used as models to learn about the human heart and lungs, and they are also utilized to learn about the human brain and nervous system. The brain, on the other hand, is far more sophisticated and nuanced than any other organ. Furthermore, animal cognition research tries to avoid issues such as which animals are smarter than others, instead concentrating on more particular concerns such as the ones listed above. Scientists frequently state that they are more interested in how well an animal has evolved to flourish in its environment than in its intelligence.
Which of the following correctly pairs biotic factors with an effect on the biosphere?
-Biotic factors would increase the average temperature.
-Biotic factors would increase the number and variety of predators.
-Biotic factors would decrease the oxygen in the soil.
-Biotic factors would decrease the amount of water.
The statement that correctly pairs biotic factors with an effect on the biosphere is that biotic factors would decrease the oxygen in the soil.
What are biotic factors?Biotic factors of an ecosystem refers to the living components of that ecosystem. Biotic factors include the following:
PlantsMicrobesAnimalsBiotic factors make use of oxygen in the atmosphere to perform the process of respiration, hence, their presence will cause a decrease in the oxygen content.
Therefore, the statement that correctly pairs biotic factors with an effect on the biosphere is that biotic factors would decrease the oxygen in the soil.
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What happens if a spike protein changes shape
Answer:
When a spike protein changes its shape, it folds on itself and merges its membrane within our cell's membrane to allow itself a way in, causing an infection and the penetration of host cells.
When a spike protein changes shape, it can affect the way a virus interacts with its host cell.
What is a spike protein?The spike protein is a key component on the surface of some viruses, such as coronaviruses, and is responsible for binding to host cell receptors, allowing the virus to enter the cell and cause infection.
If the spike protein changes shape, the following can happen:
Altered binding affinity: The ability of the spike protein to bind to host cell receptors may be enhanced or diminished. This can potentially affect the transmissibility or infectiousness of the virus.
Immune system evasion: A change in the spike protein shape might make it harder for the host's immune system to recognize the virus, potentially allowing the virus to evade detection and neutralization by antibodies.
Impact on vaccines: Changes in the spike protein shape could also impact the effectiveness of vaccines designed to target the original spike protein, as the altered shape may not be recognized as effectively by the immune system.
Overall, when a spike protein changes shape, it can have various consequences for viral transmission, immune system response, and vaccine effectiveness.
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Answer the following: (easy) Giving Brainliest!
An athlete who participates in team sports tend
A. to have narrow concentration.
B. to be an extrovert.
C. to have more anxiety.
D. to be an introvert.
Answer:
B. to be an extrovert.
Explanation:
An athlete who participates in team sports tend to be an extrovert.
If after thousands of generations, genetic mutations lead to a new separate species, we refer to this change as
O variation
Ospeciation
O adaptation
O natural selection
Answer:
speciation is the answer beacuse Genetic mutation is the basis of species diversity among beetles, or any other organism. Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. These changes occur at many different levels, and they can have widely differing consequences.
Check out the Punnett Square below. What percentage of the
offspring are expected to heterozygous?
3/4 = 75%
1/4 = 25%
2/4 = 50%
0/4 = 0%
Answer:
2/4 = 50%......is correct answer.........
In what form is radiation emitted from the Earth's surface back into the atmosphere? Via Brainpop
Answer:
infrared radiation
Explanation:
trust me
Answer:
heat / infrared radiation
Explanation:
the earth's surface traps a lot of sunlight that travels into the atmosphere. that energy is then sent back out in the form of heat.
Which of the following are examples of a non-renewable resource? Check ALL that apply.
coal
sunlight
natural gas
wind
nuclear power
biomass
petroleum
plants (trees, cotton, corn)
the process of diffusion does not require any energy why?
Answer:
Diffusion expends no energy. Rather the different concentrations of materials in different areas are a form of potential energy, and diffusion is the dissipation of that potential energy as materials move down their concentration gradients, from high to low.
Explanation:
If you are contracting and relaxing your masseter muscle, what would you probably be doing?
Motivation that is physical and can be touched like a trophy or a medal is:
A. Tangible
B. Intrinsic
C. Intangible
D. Extrinsic
Answer:
Extrinsic
Explanation:
Motivation that is physical and can be touched like a trophy or a medal is: Extrinsic motivation
Which of the following is a benefit of nonrenewable energy?
A.It costs less than some renewable options.
B.It uses man-made and natural resources.
C.It is unlimited or quickly replenished.
D.It is from clean energy sources.
Answer:
B. It uses man-made and natural resources.
Explanation:
Sorry if incorrect
Non-renewable energy uses man-made and natural resources. So, the correct option is B.
What are Non-renewable energy?Natural resources that cannot be easily replenished through natural means at a rate quick enough to stay current with use are considered non-renewable resources. Fossil fuels made of carbon are one instance. With the use of pressure and heat, the original biological matter transforms into a fuel like petrol or oil.
Non-renewable energy is produced using finite resources that cannot be replenished at a rate that matches the rate of use. To put things in perspective, there won't be any more non-renewable energy sources in our lives—or, more precisely, in many human lifetimes.
The majority of non-renewable sources of energy are fossil fuels, such as coal, natural gas, and petroleum and crude oil; however, nuclear fuel, which is primarily used to generate electricity, is also typically categorized as non-renewable.
Therefore, the correct option is B.
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