Answer:
Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. Therefore, there must be the same number of atoms of each element on each side of a chemical equation.
The number of each kind of atom must be equal on both sides of a chemical reaction to obey the law of conservation of mass, ensuring the mass of reactants equals the mass of products. This is represented in a balanced chemical equation.
In a closed system, no atoms are lost or gained during a chemical reaction, meaning the mass of the reactants must equal the mass of the products. This law is reflected in a balanced chemical equation, which is a statement of a chemical reaction with the number of each type of atom equalized for both the products and reactants. To achieve this balance, coefficients may be added in front of compounds to ensure the same number of atoms for each element on both sides of the equation. When correctly balanced, an equation shows that while the distribution of atoms may change, forming new compounds with new bonds, the absolute count of each type of atom remains constant before and after the reaction.
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.
Which two statements are true for the leading strand in DNA?
Answer: The correct options are statement first and fourth that is -
It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction
Explanation: Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA.
The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.
Answer:
It is synthesized in the 5′ to 3′ direction.
It is synthesized toward the replication fork.
Explanation:
just took the test got it right
Which of the following groups contain organisms that have tissues and organ systems?
A.
prokaryotes
B.
eukaryotes
C.
bacteria
D.
protists
Answer: c bacteria
Explanation:
hey there. i saw someone said C.bacteria, they were wrong. the correct answer is B. eukaryotes :)
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:
NEED HELP ASAP PLZ!!
In addition to surface tension what's responsible for driving ocean waves?
A. The coriolis effect
B.Thermohaline Circulation
C. Centrifugal force
D. Drag from wind
Answer:The weather can create a wave. Such as the wind. Aslo the moon plays a big part in creating tides.
Explanation:
Answer: Option 'D' is correct.
Explanation:
In addition to surface tension, drag from wind is responsible for driving ocean waves.
The significant feature of waves is wind. And speed of wind determine the frequency of waves in oceans.
So, drag from wind helps in driving the ocean waves.
Hence, option 'D' is correct.
Fill in the blank _____ Is Genetic information in the cells of all living things
Answer:
The answer is DNA
Explanation:
Answer:
DNA
Explanation:
(((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.
DNA and RNA are structurally similar but also have some notable differences. RNA has uracil in place of thymine as one of its bases, uses ribose in place of deoxyribose, and
Answer:
D: Often exists as a single stranded molecule
Explanation:
Answer Choices:
○ A. is a polymer of nucleotides and amines.
○ B. often exists as a single-stranded molecule.
○ C. has a different phosphate group in its backbone.
○ D. can't form base pairs.
Answer:
RNA has uracil in place of thymine as one of its bases, uses ribose in place of deoxyribose, and... B. often exists as a single-stranded molecule.
Reference:
3.2 Examine the structure of DNA and its function with genetic inheritance
DNA's Structure and Function in Genetic Inheritance READING ASSIGNMENT
◦◦◦
"Additionally, unlike DNA, RNA can be present as a single strand which folds onto itself..." (PDF pg. 54)
#pennfosternotes
⭐⭐⭐⭐⭐
3. Which reproductive gametes are powered by many ATP and flagella?
A. Blastula
B. Eggs
C. Sperm
D. Ovum
Answer:
C
Explanation:
The flagella of the sperm are used to help it swim through the vagina and uterus so it reaches the fallopian tubes from where it will meet the egg and fertilize. The ATPs are found in the many mitochondria organelles in the sperm are used to generate the required energy to swim and breach the walls of the egg during fertilization.
Answer:C sperm
Explanation:
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'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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Which level of a food chain breaks down dead organisms at every other level?
It should be the trophic level..
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.
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.
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
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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A dense group of bacteria that are difficult to treat with antibiotics is called
A. a biofilm.
B. lysogenic.
C. a plasmid conjugate.
D. parasitic.
Answer:
A
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
Answer:
A. a biofilm
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
PENN
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
Which of the following is a producer
I think the answer is G and/or H
A producer in biology is an organism, like a plant or algae, that creates its own food through photosynthesis, forming the base of the food chain.
Explanation:In biology, a producer is an organism that creates its own food through the process of photosynthesis. They form the base of the food chain and are typically plants, algae, or photo-bacterium. These producers take sunlight, carbon dioxide, and water to create glucose, a type of sugar that they use for energy, and oxygen, which they release into the atmosphere. An example of a producer is a tree, such as an oak or a maple tree. Tree, plants and algae are all able to use the sun's energy to create food for themselves.
A producer is an organism that makes its own food through photosynthesis or chemosynthesis. In biology, plants are the primary examples of producers as they use sunlight, carbon dioxide, and water to produce glucose and oxygen through photosynthesis. Other examples of producers include algae and certain bacteria.
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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:
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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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
Which describes the relationship between a genotype, a phenotype, and an organism’s experiences?
Answer:
A phenotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences. ... A phenotype is an organism's allele combination. A genotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences.
Explanation:
Phenotype is like the appearance like color genotype is like the dna off is what’s it’s made of
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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Plants use the sugars they produce during photosynthesis to create which molecule
Answer:
sugar molecule
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
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
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 :)
Select the correct pairing of an event with its effect on the Earth's surface.
A.
flood: a rock mass sliding down a mountainside onto the Earth's crust
B.
tornado: masses of ice that move soil across the Earth's crust
C.
glacier: a piece of rock collides with the Earth's crust
D.
volcano: the eruption creates new land on the Earth's crust
Answer:
D. volcano: the eruption creates new land on the Earth's crust
Explanation:
The volcanic activity is crucial for the formation of new crust on the planet, be it oceanic or continental one. Through the eruptions, the volcanoes release pyroclastic material, and more importantly and in much higher amounts, they release lava. The lava quickly starts to cool off on the surface of the Earth as the temperature is much lower. As it cools off, the lava becomes igneous rocks, more specifically extrusive igneous rocks. These new rocks are actually the new crust on the Earth's surface, thus increasing the land mass.
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.
what is the code for building amino acids
Answer:
12345
Explanation:
12345