Answer:
Cytosine and thymine are the two major pyrimidine bases in DNA and base pair (see Watson–Crick Pairing) with guanine and adenine (see Purine Bases), respectively. In RNA, uracil replaces thymine and base pairs with adenine.
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
Answer: C nucleosome beads, mitotic condensation, looped domains
Explanation:
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
Answer:
18 percent
Explanation:
I need science fair project ideas. I am in 9th grade. project has to have a independent and dependent variable
Explanation:
please mark as brainlist answers
Answer:
Explanation:
Provide an example between Relative dating and Absolute dating
Answer:
In relative dating, fossils are dated according to the depth at which they were buried. ... While in the absolute dating, isotopes of carbon are used for dating fossils. The absolute dating is more precise than relative dating because it tells the exact age of the fossils.
Explanation:
Guys I need help
Please it DUES TODAY please
GUYS IT SOOOOOO HARD
Answer:
the pod splits, the cherry's bright red attracts animals to eat it and the last one is called a Bur
Explanation:
What are cell cycle regulators
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.
Identify two genetic disorders and state how their karyotypes differ from a normal
karyotype due to a chromosomal abnormality.
PLEASE HELP ILL GIVE BRAINLIEST
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
Study the image of this rock.
The rock has many different colors in a horizontal pattern.
Which characteristic best supports its formation from sedimentary processes?
It has many layers.
It is coarse-grained.
Its grain shape is round.
Its texture is non-banded.
Answer: It has many layers.
Answer:
it is a
Explanation:
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
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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3. The genetic variety within the tiger
population has recently decreased by
overhunting of tigers. What could be the
results of decreasing the genetic
variety?
A. If increases the resistance against
diseases.
B. It decreases the chance of survival
against the large environmental
changes.
C. It causes the tigers to migrate to
different places.
D. It increases the chances of survival
against environmental changes.
You’re
Answer:
i would say B
Explanation:
that feels like the right answer
the application of measures to promote public health and prevent the spread of infectious diseases
Answer:
1 2 3 5
Explanation:
I need help with this one
Answer:
B. III and IV
Answer:
b the answer would be b.
What part of the cell gives ribosomes instructions on how to assemble protein?
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.
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
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 an important part of scientific methods? Select all correct answers.
formulating conclusions
making hypotheses
traveling to distant places
performing experiments
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 chemical can we only get from eating protein?Choose all that apply.
Carbon
Oxygen
Sulfur
Nitrogen
Hydrogen
Answer: it’s D. Nitrogen
Nitrogen chemical can we only get from eating protein.
What are types of protein ?Like carbohydrates and fats, Proteins are the macronutrient as it provides the body with energy and is essential to building muscle mass., The protein of body made up of 20 different amino acids.
These amino acids are classified into 2 categories such as Non-Essential Amino Acids produced naturally by the body and Essential Amino Acids (EAAs) not produced naturally by the body, consumed through food or supplementation.
Both animal and plant proteins we consume, Most animal proteins are complete proteins, meaning they have all 9 of the essential amino acids (EAAs) but plant proteins are incomplete proteins , they have at least one missing amino acid.
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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.
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
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
The pulmonary circulation carries blood between the heart and ______
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 colors were absorbed best by the plant
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.
Which function allows animals to find mates?
movement
homeostasis
reproduction
feeding
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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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
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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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
Answer:natural active immunity
Explanation:lol it took too long
Which of the following is true of prokaryotic cells?
Answer:
what are the choices? hihihihihiu
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
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 is the answer A B C Or D
Answer:
I believe that it might be choice A, but I'm not entirely sure.
Is an egg shell permeable or selectively permeable?
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
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.
How do substances get into and out of the cell?
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
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)
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.