Hey! I took the Penn foster exam, and i answered (a). I got it wrong, so I tried to find the correct answer. I’m pretty sure the answer is (b), and here’s some text from the Penn foster lesson.
“Unfortunately, nuclear fusion can't be used in nuclear power plants as the energy required to start a fusion is very large. The energy required to start a fusion reaction cannot be generated in a controlled manner.”
Anyways, hope this helps:) If this is wrong, please comment and tell me the correct answer.
why do people study genetics
Answer:
People study genetics to understand the hereditary information in DNA that controls what an organism looks like and how it works.
Explanation:
Answer: At the other extreme of the subject, a knowledge of genetics is fundamental to an understanding of how organisms, populations and species evolve
Explanation:Genetics has always been concerned with the problem of how the hereditary information in DNA controls what an organism looks like and how it works.
What is an adaptation?
A. A trait that makes an organism more likely to survive.
B. A mutation that either helps or hurts an organism.
C. A way for an ecosystem to recover after a disturbance.
D. A trick that an organism learns that helps it survive.
Answer: A
Explanation: an adaption is when an organism evolves to adjust and survive in it's environment
An adaptation is a trait that helps an organism survive by making it better suited to its environment.
Explanation:An adaptation is a trait that makes an organism more likely to survive. It is a characteristic or behavior that helps an organism better suited to its environment and increases its chances of survival and reproduction.
For example, the long neck of a giraffe is an adaptation that helps it reach leaves on tall trees for food. The camouflage of a chameleon is another adaptation that allows it to blend in with its surroundings and avoid predators.
Therefore, the correct answer is A. A trait that makes an organism more likely to survive.
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anything that is built or created in an organized manner
Answer:
structure
Explanation:
Anything that is built or created in an organized way refers to the field of Engineering. It involves using scientific and mathematical principles to design, build, and maintain various structures, machines, systems, in a systematic and organized manner.
Explanation:When we talk about anything that is built or created in an organized manner, we are generally referring to the field of Engineering. Engineering is a discipline involving the application of scientific and mathematical principles to design, build, and maintain structures, machines, systems, and processes in a systematic, deliberate, and organized manner. For instance, building a bridge, designing a computer software, creating a sustainable energy system, or even developing a city's infrastructure, are all tasks that fall within the realm of engineering. These tasks all require a careful, thoughtful approach where factors such as functionality, sustainability, and safety are taken into account.
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What's the role of a primary consumer in the food web?
Answer:
To make energy available for transfer to higher trophic levels.
Explanation:
Primary consumers are the organisms that feed directly on the autotrophs to obtain energy. These consumers thus help to transfer energy to higher trophic levels that are secondary consumers.An example is the goat feeding on a plant is a primary consumer that directly obtains its energy from the plant. However, by feeding on the plant, it makes energy available for the secondary consumer, which in this case would be a lion.The role of a primary consumer in the food web is to transfer energy within an ecosystem through scouting and consuming of foods which are beneficial to them, and are subsequently consumed by other consumers i.e. secondary and tertiary consumers which are termed as carnivores and omnivores.
Further ExplanationThe significant role of primary consumers in the food web helps keep balance of an ecosystem or a community from collapsing.
A typical primary consumer eats plants and grasses. Primary consumers are mostly herbivores. Primary consumers are located in the bottom level of animals in the food web.
The food web refers to the natural feeding relationship that exists in an ecosystem or a community. Food web comprises of food chains that are interconnected. Aside the primary consumers being in the food chain, secondary and tertiary consumers are also in the food chain.
It should be noted that without the important role of primary consumers, secondary and tertiary consumers would severely be short of much needed energy and nutrients, since they cannot produce their own food.
Therefore, primary consumers play a significant role through the transfer of energy as a result of consuming primary producers i.e. plants which make use of sunlight (solar energy) to provide their own food through the photosynthesis process.
And since plants are consumed by primary consumers, energy derived from the sun is transferred to them, and are tend to be transferred to whichever consumer that consumes the primary consumer.
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Primary consumer https://brainly.com/question/6358301role of a primary consumer https://brainly.com/question/12474990KEYWORDS:
primary consumerfood webcarnivoresomnivorestertiary consumerssecondary consumersWhat's the requirement of every single natural process on Earth?
A. Energy source
B. Oil
C. Sunlight
D. Trees
Answer:
energy source
Explanation:
The study of a living being is called biology. There are two types of living species and these are plants and animals.
The correct answer is option C that is sunlight.
What is natural?The thing which is made up naturally and we can not be made up human process is called natural.Every Cell requires energy for working and the unlimited source of energy is the sun.
Hence, every cell needs energy.
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The main function of the human digestive system is to
A) rid the body of cellular waste materials
B) process organic molecules so they can enter cells
C) break down glucose and convert it to ATP
D) change amino acids into proteins and carbohydrates.
Answer:
The correct answer is A
Explanation:
The digestive system takes cellular waste and basically just flushes it out. I took this test as well and got it correct. If its correct for u pls mark brainliest answer. I need it for a challenge. Good luck with your quiz!(:
The primary function of the human digestive system is to break down food into smaller molecules so they can be absorbed into the bloodstream and supplied to the body's cells. Food undergoes both mechanical and chemical digestion in the stomach and intestines, leading to absorption of nutrients.
Explanation:The main function of the human digestive system is B) process organic molecules so they can enter cells. The digestive system begins this process in the mouth where food is broken down mechanically by teeth and chemically by salivary enzymes.
It continues in the stomach where gastric juices break down proteins. After that, in the small intestine, enzymes from the pancreas further break down food, allowing nutrient molecules including carbohydrates, proteins, and fats to be absorbed into the bloodstream.
The digestive system finishes this process in the large intestine, where water and electrolytes are reabsorbed back into the system, essentially leaving waste material that is then excreted via the rectum and anus. Therefore, the principal job of the digestive system is to break down food into tiny molecules and deliver them into the cells to be used as fuel for energy, growth, and cell repair.
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What parts of the cardiovascular system are involved in the pumping and circulating of blood?
artery
vein
heart
alveoli
Answer:
Heart and artery
Explanation:
It consists of the Heart and the blood vessels running through the entire body.
What is typically responsible for forming volcanic island chains in the oceans?
Answer:
Explanation:
The bottom of the sea floor is filled with hot spots, where magma from the Earth's interior presses the surface of the sea floor, forming volcanoes. These volcanoes in the maritime soil erupt and, over millions of years, they expel lava, which accumulates and, as it passes the water line, forms an island
Answer: Hot spot volcanism is typically responsible for forming volcanic island chains in the oceans.
Explanation:
What do euglenoids lack? cell walls chloroplasts contractile vacuoles eyespots
Answer:
Euglenoids lack a Cell wall
Explanation:
Euglena is a unicellular photosynthetic protista that can be found in both salt water and fresh water. As Euglena has chloroplasts they can produce their own food through photosynthesis. For their movement in water they have specialized structure called flagella. Near Flagella another pigmented spot exist called eyespot. Eyespot helps euglena to detect sunlight. Euglenoids lack cell wall so they have more flexibility for movement.
The image below was generated by the National Oceanic and Atmospheric Administration (NOAA) to monitor weather systems that could evolve into tropical cyclones. Satellite images and weather data have been entered into a computer model, which has identified three systems that might become tropical cyclones. Each system is associated with a different likelihood of turning into a tropical cyclone.
The image suggests that there is _______ in the computer models used to make weather predictions.
A. no error
B. some uncertainty
C. zero accuracy
D. perfect accuracy
(Edit: It's B)
Answer:yo no se mucho de esto pero yo creo que es la A por que el clima cambia siempre por ejemplo un dia es soliado y al dia siguiente es nublado o algo asi y es cierto el clima cambia constantemente como las personas
Explanation:
Answer:
ITS B
Explanation:
Scientists agree that the term biodiversity describes the number and kinds of species in a location on Earth. Scientists have also identified alternate measures of biodiversity, some of which are important for planning how to preserve biodiversity including genetic biodiversity as well as ecosystem biodiversity. Because all life is interconnected and because the biosphere exerts such an influence on our man's presence on Earth, it is so very important that biodiversity be preserved.
Why is biodiversity important to man? Check all the statements that are true.
A) Maintaining genetic biodiversity of wild species of our crops that are related to domesticated species ensures our continued food supply.
B) Most aesthetically pleasing landscapes are poor in diversity of habitats and species.
C)Antibiotics are derived from bacteria and fungi.
D)Many plants produce secondary plant compounds that are used as medicines.
E)The ability to create new crop varieties relies on the unique properties of just one particular plant rather than a genetic diversity.
F)Undisturbed wild areas are important for all human recreation activities.
ANSWER :A C D F
I am not 100% sure but i’m pretty sure the answer is A.
Answer:
Its A, C, D, and F
Explanation:
I just took it on USATestPrep
Help Please!!!!!! I will appreciate it. SCIENCE
C. In order for something to turn into a fossil fuel it has to die and be buried. After it’s buried it gets compacted and over the years the pressure builds up so much that it changes forms. Hope this helped you :)
Use the drop-down menus to match each description to the geologic era it describes.
The first birds and flowering plants appeared during this era. This is also when the most well-known dinosaurs lived.
1) Mesozoic
2) Cenozoic
3) Paleozoic
2020 on edge
Fill in the blank _____ Is Genetic information in the cells of all living things
Answer:
The answer is DNA
Explanation:
Answer:
DNA
Explanation:
what the solution for ocean gyre?
If we can clean the ocean by removing the larger plastics currently polluting it we can help prevent that plastic from breaking down into micro plastics. Micro plastics are small plastic pieces that were broken down from larger plastics. Also we can recycle and prevent land paves.
Who is credited with first documenting the use of the scientific method?
A. Sir Isaac Newton
B. Charles Darwin
C. Dmitri Mendeleev
D. Sir Francis Bacon
Answer:
D. Sir Francis Bacon
Explanation:
Sir Francis Bacon was the first individual to receive credits for documenting the use of scientific method.He also set the inductive method.Previous works of Nicolaus Copernicus and Galileo Galilei influenced him.In this method , scientist obtain observations, empirical data and evidence that can be measured by applying reasonable principles while utilizing the data collected from experiments so as to formulate and test hypothesis.
Answer:
D. Sir Francis Bacon
Explanation:
Hazardous waste is produced only by industry, such as factories or office parks. True False
Answer:
The statement is False.
Explanation:
Hazardous waste is the waste which effect environment by destroying is equilibrium and impose dangerous effects on public health. Hazardous waste could be flammable, Corrosive, explosive or toxic. This type of waste is not only produces by factories and office but our house hold items are also producing Hazardous waste products. For example, pesticides, paints, human feces, battries and CFC produced by Refrigerators and Air conditioners. There are several home appliances which are creating problems to environment due to lack of safe disposal. Additionally, Our transport vehicles are also emitting toxic gasses to the environment.
Answer:
false
Explanation:
it is also produced by households
The hypothalamus causes the anterior pituitary to secrete hormones by
A--nervous stimulation.
B--releasing hormones.
C--negative feedback.
D--releasing adrenalin.
D. Releasing hormones
(((PLEASE HELP QUICK))) How is energy related to the change of state represented by the model?
A) Atoms gain energy as a solid changes to a liquid.
B) Atoms gain energy as a solid changes to a gas.
C) Atoms lose energy as a solid changes to a liquid.
D) Atoms lose energy as a solid changes to a gas.
I believe the answer is c
Answer: A) Atoms gain energy as a solid changes to a liquid.
Explanation: Atoms in liquid possess more energy than the atoms in solid. The change of state from a solid state to a liquid state is called melting. Energy is applied to the molecules in solid state the molecules begin to move quicker and begins to break away from the other molecules. The heat absorbed leads to the molecules to moving farther apart from others thereby overcoming the intermolecular forces of attraction between them.
The solid state gains energy in form of heat as solids converts to liquid.
does the distance from the sun affect seasons? Why or why not?
Seasons are not caused by the Earth's distance from the Sun, but by the tilt of the Earth's axis. This 23.5° tilt results in varying angles of sunlight over the course of a year, causing different hemispheres to experience summer or winter when they are tilted toward or away from the Sun, respectively.
The idea that the distance from the Sun affects seasons is a common misconception. In reality, it is not the distance that causes the seasons but rather the tilt of the Earth's axis. While the Earth's orbit around the Sun is slightly elliptical, meaning the distance does vary, this variation is about 3% which is too small to significantly affect the Sun's heating of the Earth.
The true reason behind the changing seasons is the 23.5° tilt of the Earth's axis. This tilt ensures that during different times of the year, either the Northern or the Southern Hemisphere will be tilted toward the Sun, resulting in more direct sunlight and, consequently, warmer temperatures. Conversely, when a hemisphere is tilted away from the Sun, it experiences less direct sunlight and thus cooler temperatures.
For example, during the month of June, the Northern Hemisphere is tilted toward the Sun and enjoys summer, while the Southern Hemisphere, being tilted away, experiences winter. Conversely, in December, the Southern Hemisphere leans into the Sun and witnesses summer, whereas the Northern Hemisphere leans away and undergoes winter.
what is a punnett square
It looks like a for square game set up
Basically it is used to predict the genotype of something
Answer:
A Punnett square is a tool that uses the genotypes of the parents to predict the probability of the possible phenotypes of their offspring.
Explanation:
Why are the four inner planets in our solar system dense and rocky while the outer planets are gaseous
Final answer:
The inner planets are dense and rocky due to the high temperatures near the Sun which caused lighter materials to evaporate, leaving behind rocks and metals. The outer planets are large and gaseous because they formed in cooler regions where it was possible for gases and ices to condense around a dense core. The solar system also contains asteroids, comets, and the asteroid and Kuiper belts, showing a transition in composition.
Explanation:
Why Inner Planets are Dense and Rocky While Outer Planets are Gaseous
Our solar system is divided into two distinct types of planets: the inner planets (Mercury, Venus, Earth, and Mars) which are dense and rocky, and the outer planets (Jupiter, Saturn, Uranus, and Neptune) which are large and composed mostly of gases. This division is largely due to the heat of the Sun and the distance of the planets from the Sun during the formation of the solar system.
Formation of Inner and Outer Planets
The inner planets formed in a part of the solar system where temperatures were high due to the proximity to the Sun. This heat caused lighter materials, such as water, carbon dioxide, methane, and ammonia, to remain in gas phase or evaporate if they were present on the forming planets, leaving behind dense, rocky materials. As a result, the inner planets are composed primarily of rocks and metals which could withstand the high temperatures.
In contrast, the outer planets formed in cooler regions of the solar system, where it was cold enough for gases and ices to condense. These planets started with a dense core similar to the inner planets but were able to accumulate large amounts of light gases like hydrogen and helium from the solar nebula. This accumulation of gases around their cores is why the outer planets are much larger and have a gaseous composition.
Other Objects in Our Solar System
Beyond the planets, our solar system is also home to asteroids, comets, the asteroid belt located between Mars and Jupiter, and the Kuiper Belt and Oort Cloud which contain many icy bodies. These objects represent a transition in composition from the rocky materials of the inner solar system to the icy constituents of the outer solar system.
what is the code for building amino acids
Answer:
12345
Explanation:
12345
Which of these is an environmental effect of building dams?
(A) Decreased Water Tempature Upstream
(B) Soil Erosion Upstream
(C) Increased Land Fertility Downstream
(D) Weed (Not Marijuana plant Bush Weed) Growth Downstream
The question is B soil erosion upstream
Answer:
The answer is weed growth downstream
Explanation:
I did the test
7. Population growth is limited by density-dependent factors such as
A.)volcanoes and earthquakes
B.)droughts and floods
C.)predation and disease
D.)biotic and abiotic factos
Answer: D.)Biotic and Abiotic factors
Explanation: The living things in an ecosystem are called biotic factors. Living things include plants, animals, bacteria, fungi and more. The non living parts of an ecosystem are called abiotic factors. In an ecosystem some abiotic factors are sunlight, temperature atmospheric gases water and soil. These would not limit pop growth as much as predation and disease.
Study the amino acid sequences of the same protein taken from four different species of
plants. Which pair of plants is most closely related?
Species 1: A-P-A-C-W-
Species 2: G-P-G-S-F-
Species 3: A-P-A-C-F-
Species: -N-K-M-H-H-
A.Species 2 and 4
B.Species 1 and 3
C.Species 3 and 4
D.Species 1 and 2
Answer:
D species 1and 2 is the following answer of the following answers
Answer:
B) Species 1 and 3
Explanation:
Species 1 and 3 have four proteins in common, while the others have less.
Clouds form when water vapor in the atmosphere cools to _______.
a) its dew point
b) its relative humidity
c) its convection point
d) its precipitation
Answer:
A
Explanation:
Answer:
The answer to the question: Clouds form when water vapor in the atmosphere cools to:____, would be, A: Its dew point.
Explanation:
Clouds are simply the visible condensation of the warm air that rises into the cooler atmosphere. Once this happens, with the moisture carried in the warm air, the cooler atmosphere will bring down the temperature of the air, and the water inside it in form of vapor, till it reaches dew point. Once there, the air condenses into either water dropplets, or crystals, making clouds look like formed pieces of cotton. If condensation is light, the clouds will appear white, and clear, as condensation gets higher, and temperatures change, the cloud will get darker, as it gets heavier with water. At its breaking point, water will come down now condensed either as rain, or ice, depending on temperatures.
which factor most strongly influences the kinds of plants that can grow in an area
Answer:
Tha climatic conditions , fertility ,rainfall,and climatic sunlight recurved
Explanation:
Please mark as BRAINLIESTAnswer: The factors such as rainfall, climate and temperature determines the type of vegetation growing there.
Explanation:
The type of vegetation is determined by the climate of the region. More and more rainfall favors the growth of trees that grows in rain.
The temperature of the region also contributes in this factor. The colder regions have different types of trees and the hotter places have different types of trees.
These are some of the important factors which determines the growth of plants in a region.
what cell should be classified as prokaryotic?
the answer is A
Prokaryotic means no nucleus. remember pro rhymes with no.
the answer is A because it doesn’t have a nucleus
Which of the following structures is not present in animal cells , cell menbrane , mitochondrion , cell wall , nucleus
Answer:
The cell wall.
Explanation:
Cell membrane, mitochondria , nucleus are all present in animal and plant cell. The cell wall is only present in the plant cell.