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Related Questions
I need science fair project ideas. I am in 9th grade. project has to have a independent and dependent variable
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Explanation:
please mark as brainlist answers
Answer:
Explanation:
Is an egg shell permeable or selectively permeable?
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Answer:
Selectively permeable
Explanation:
The membrane is the part that is selectively permeable
Answer:
After someone dissolves an eggshell, the egg is surrounded by a membrane. This membrane is selectively permeable that means it lets certain molecules move through it and blocks other molecules. Water moves through this membrane very easily.
Briefly summarize the difference between Exergonic reactions and endergonic reactions
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Answer:
Exergonic and endergonic reactions result in changes in Gibbs free energy. In exergonic reaction the free energy of the products is lower than that of the reactants; meanwhile, in endergonic the free energy of the products is higher than that of the reactants.
Explanation:
Exergonic and endergonic reactions result in changes in Gibbs free energy. In exergonic reaction the free energy of the products is lower than that of the reactants; meanwhile, in endergonic the free energy of the products is higher than that of the reactants. I hope this is helpful.
During a science lab the teacher provided Michael with a triple-beam balance, a ruler, and four cube-shaped metals. Michael correctly calculated the densities of the objects and compared his calculations with the data table below. Based on Michael's calculations and the table below, which conclusion can be BEST made?
Iron has the highest density.
Aluminum has the lowest density.
Weight is used to determine density.
Substances can be identified by their density
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THE ANSWER IS D YOU ARE WELCOME
During a science lab the teacher provided Michael with a triple-beam balance, a ruler, and four cube-shaped metals. Based on Michael's calculations and the table below, the conclusion can be BEST made Substances can be identified by their density
what is density?
Density refers to the mass of a unit volume of a material substance. The formula for density is represented by d = M/V, where d is density, M is mass, and V is volume.
It is commonly shown as units of grams per cubic centimeter, it can also be expressed as kilograms per cubic meter .
Density can used to define how different materials interact when mixed together. For example Wood floats in water because it has a lower density, while an anchor sinks because the metal has a higher density.
Density can be applied in pipe design, shipbuilding, helium balloons, weight distribution in the aero plane, and the fact that ice floats on water.
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PLS help me to get brainliest
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1. What is the main purpose of binary fission? *
A. To produce an egg and a sperm cell
B. To produce a new organism (like bacteria)
C. To produce a new organ
D. To differentiate
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Answer:
Answer A or B
Explanation: I say its a or b because if your in biology then this would mostly likely be your answer. Also when for one two daughter cells would usually go for sperm and egg cells but at the same time binary fission can be used for making for bacteria. If it were me i would choose B, but test your luck.
Which is the answer A B C Or D
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Answer:
I believe that it might be choice A, but I'm not entirely sure.
The pulmonary circulation carries blood between the heart and ______
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Answer:
lungs
Explanation:
Pulmonary circulation moves blood between the heart and the lungs. It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. The oxygenated blood then flows back to the heart. Systemic circulation moves blood between the heart and the rest of the body.
Which of the following is NOT true of proteins?
a. they form muscle, skin and hair
b. they are found in food
c. they are a main source of energy
d. they are sensitive to pH and temperature
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The rock in the image is marble, which has many layers and is extremely hard. It was formed under high heat and pressure. Marble is an example of
rock changing into
rock.
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Answer:
Marble is a metamorphic rock.
Explanation:
Metamorphic rocks were once igneous or sedimentary rocks, but have been changed as a result of intense heat and/or pressure within the Earth's crust. They are crystalline and often have a “squashed” texture.
Which of the following is true of prokaryotic cells?
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Answer:
what are the choices? hihihihihiu
Which colors were absorbed best by the plant
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Answer:
the flower part or red flower like rose
Explanation:
because roses are best known as ornamental plants grown for their flowers in the garden and sometimes indoors. They have been also used for commercial perfumery and commercial cut flower crops. Some are used as landscape plants, for hedging and for other utilitarian purposes such as game cover and slope stabilization.
What part of the cell gives ribosomes instructions on how to assemble protein?
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Answer:
The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins.
Identify two genetic disorders and state how their karyotypes differ from a normal
karyotype due to a chromosomal abnormality.
PLEASE HELP ILL GIVE BRAINLIEST
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Answer/Explanation:
Down's syndrome - individuals with Down Syndrome have an extra copy of chromosome 21 (trisomy 21). This causes affected individuals to have learning disabilities as well as a range of health problems such as heart problems, growth delay, and characteristic facial features.
Turner syndrome - individuals with Turner Syndrome only have one X chromosome, but no Y chromosome (written XO). They are phenotypically female, but lacking the second X chromosome. This means they have underdeveloped ovaries, and are infertile. They also have a range of other features such as a short stature, a thick neck, and heart issues.
Answer:
yes
Explanation:
just did it
In some developing nations, the percentage of animal protein from fish in the diet can be as high as____. 20 percent 80 percent 10 percent 40 percent
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Answer:
18 percent
Explanation:
If a person combat the disease without a vaccine introduced to his body,such immunity is known as
natural active immunity
natural passive immunity
Artificial active immunity
artificial passive immunity
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Answer:natural active immunity
Explanation:lol it took too long
Which of the following is NOT true about matter in the biosphere?
a) Matter is transferred in one direction through the biosphere. b) Biogeochemical cycles transform and reuse molecules. c) The total amount of matter decreases over time. d) Human activity does not affect the movement of matter
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Answer:
c) The total amount of matter decreases over time.
Explanation:
The statement 'the total amount of matter decreases over time' is NOT true about the matter in the biosphere (Option c).
The biosphere refers to the total of all ecosystems of the Earth.The biosphere can be defined as a closed system in terms of matter because matter does not enter or exit.In the biosphere, the total amount of matter remains constant over time, whereas the total amount of energy decreases over time.This energy is lost in the form of heat when it spreads from the Earth's surface and outward into space.In conclusion, the statement 'the total amount of matter decreases over time' is NOT true about the matter in the biosphere (Option c).
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Which type of earthquake will be most destructive
O shallow focus with 4.5 magnitude
O
deep focus with 4.5 magnitude
shallow focus with 3.5 magnitude
O deep focus with 3.5 magnitude
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Answer:
b
Explanation:
shallow focus with 3.5 magnitude would be very big because its shallow.
Xavier observes a fully lit moon. When can he expect to see the moon look like this again?
In about 12 hours
In about 24 hours
In about 15 days
In about 30 days
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Answer:
In about 30 days
Explanation:
Assume Xavier sights a full moon today, it'll take around 29.5 days to see the moon at that size again.
Analysing each of the given options, only option D answers the question because 29.5 days can be rightly said to be about 30 days.
Or better still, 29.5 days approximates to 30 days.
Which of the following is true regarding enzymes?
A one enzyme can work with any substrate
B they can be used extracellularly
C they are made of only protein
D they are used entirely in the reaction
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Answer:
C .they are made of only protein
Enzymes can be used extracellularly. Therefore option B is correct.
Enzymes are biological catalysts that facilitate chemical reactions in living organisms.
While enzymes are highly specific in their action, option A is incorrect because each enzyme typically works with a specific substrate or group of related substrates.
Option C is also incorrect because enzymes can be composed of both protein and non-protein components, such as cofactors or coenzymes.
Finally, option D is incorrect because enzymes are not used up entirely in the reaction but rather can be reused multiple times, making them efficient catalysts.
Therefore option B they can be used extracellularly is correct.
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Which of the following is the correct increasing order of chromosome organization?
A.
nucleosome beads, 30 nm fibers, looped domains
B.
nucleosome beads, mitotic condensation, looped domains
C.
30 nm fibers, looped domains, mitotic condensation
D.
looped domains, nucleosome beads, 30 nm fibers
Answers
Answer: C nucleosome beads, mitotic condensation, looped domains
Explanation:
Southern Florida has many tropical hardwood hammocks—forest habitats that are warm, wet, and populated with many broad-leaved evergreen trees. Why might a plant native to an ecosystem with a cooler climate do well if introduced to a tropical hardwood hammock? Group of answer choices The trees in the tropical hardwood hammock are better at competing for native resources than the introduced species are. The wet conditions in the tropical hardwood hammock disrupt the life cycle and limit reproduction of the introduced species. Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock. Pollinators and seed carriers that normally increase the population in the cooler climate are lacking in the tropical hardwood hammock.
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Answer:
Freezing temperatures that normally limit the population in the cooler climate are lacking in the tropical hardwood hammock.
Explanation:
The tropical hardwood hammocks are habitats that act as small ecosystems markedly different from the surrounding environment, and they may be seriously threatened by introduced plant species. In Florida, exotic plants have been introduced into the tropical hardwood hammock habitat, reaching to about 50% of the flora in some areas. The mature hammock of these habitats can generate a shade that maintains a temperature of several degrees cooler compared to their neighboring habitats, and thereby promoting invasion by exotic species.
In your own words please explain the difference between genotype and phenotype?
( IF YOU GET IT FROM GOOGLE, PLEASE PUT IT IN YOUR OWN WORDS AND MAKE IT LONG)
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Ima say this in the most easy simplest way possible. Genotype is like the physical make up of an organism. In other terms genotype is the actual genes, the actual alleles. Like PP Pp and pp ( dominant / recessive)
And the phenotype is the physical appearance like the stuff you can actually distinguish a person like curly hair, straight hair, brown eyes, blue eyes, black hair. blond hair. Anyways you get the point.
This is the easiest, simplest way I could put it so I hope it helps.
I need help with this one
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Answer:
B. III and IV
Answer:
b the answer would be b.
What are cell cycle regulators
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Answer:
Cell cycle regulators are the cell cycle only when they are tight bound to CDKS.
Explanation:
To be fully active, the CDK/Cyclin complex must also be phosphorylated in specific locations. Like all kinases, CDKS are enzymes (kinases) that phosphorylate other proteins. Phosphorylation activates the protein by changing its shape.
How Clark Developed Seizures
The following list is not in the correct order. The first three events are numbered correctly. Drag and drop the
remaining events in the order that led to Clark's seizures.
picture above for the order.
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Answer:
4. Low blood sodium concentration
5. Net movement of free water into the matrix
6. Increased matrix pressure
7. Abnormal neuron firing rate
8. Seizures
Explanation:
Seizures are defined as the common complication of drug intoxication.
As per the clinical observations for Clark , normal blood and matrix sodium concentration lose sodium ions due to diarrhea. As given too much water causes sodium levels to decrease. Due to lower sodium concentration, the free water move into the matrix and increased matrix pressure. This pressure causes the abnormal neuron firing rate to increase which causes seizures.
Hence, the correct order is:
4. Low blood sodium concentration
5. Net movement of free water into the matrix
6. Increased matrix pressure
7. Abnormal neuron firing rate
8. Seizures
What first caused people to consider that the continents were once one large landmass?
glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents
Answers
Answer:
B- continents looked like they fit together =^.^=
Explanation:
I GOT IT RIGHT >:3
People believed that the continents were once one large landmass because the continents looked like they fit together.
What is the Pangaea?Pangaea refers to the one very big landmass which contains all the continents today fitted together.
Geologists believe that the while earth was once a large landmass without the continents as we have it today.
The first evidence for this belief is that continents looked like they fit together.
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Which of the following is an important part of scientific methods? Select all correct answers.
formulating conclusions
making hypotheses
traveling to distant places
performing experiments
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Answer:
Making a hypotheses and performing experiments
I Hope this helps you uwu
Explanation:
Making hypotheses and performing experiments to prove them are important parts of the scientific method.
What is a hypothesis?A hypothesis is a given explanation to understand some observation from the real world by using the scientific method.
This explanation (hypothesis) must be tested (either confirmed or rejected) by experimental methods.In conclusion, making hypotheses and performing experiments to prove them are important parts of the scientific method.
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Which function allows animals to find mates?
movement
homeostasis
reproduction
feeding
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Answer: MOVEMENT
Explanation:
Movement
Movement can be described as the change in the place of an object or animals, without the ability to move there is not a possibility of life on earth. Movement is essential for many animals that help them to find food, shelter, and mate for the reproduction and produce offspring by mating.
The function that allows animals to find mates is movement, which is present in the first option as movement is a unique characteristic that is only present in animals but not in plants.
What is the significance of the movement?In the animal kingdom, movement is required to find a mate, as the animal must move from one location to another to find a suitable mate, while it is absent in plants. Plants do not move, but pollinators assist in this process, whereas animals use movement to find food by walking on their legs or flying, and they also use movement to find mating partners.
Hence, the function that allows animals to find mates is movement, which is present in the first option as movement is a unique characteristic that is only present in animals but not in plants.
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will mark brainliest ⚠️⚠️ please help
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Answer:# 1 is salt #2 is fresh #3 fresh #4 salty
Explanation:
