An example of a nucleotide is?
A. cytosine, ribose, and deoxyribose
B. guanine, deoxyribose, and phosphate
C. uracil, deoxyribose, and phosphate
D. thymine, ribose, and phosphate
Answer:
B
Explanation:
A nucleotide always consists of 3 things:
1. A sugar group (either ribose or deoxyribose, ribose if the nucleotide is from RNA, deoxyribose if it is from DNA.
2. A phosphate group
3. A nitrogenous base (A/T/U/C/G) This base depends on whether you have RNA or DNA, U is only for RNA. DNA has either A/T or C/G but never U.
What is the most basic level of biological organization?
Molecule
Cell
Atom
Organism
Explanation:
A cell is the most basic level of biological organization
The most basic level of biological organization is the cell, which is in the third option, as the cell is the smallest unit of life that can perform all the functions necessary to maintain life.
What is the significance of the cell in biotic substances?The cell is the most basic level of biological organization among the biotic life forms and is the building block of all living organisms such as plants, animals, and humans that contain genetic material, known as DNA, which stores and transmits information from one generation to the next and also cell contains many other essential organelles.
Hence, the most basic level of biological organization is the cell, which is in the third option, as the cell is the smallest unit of life that can perform all the functions necessary to maintain life.
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Write a small paragraph explaining how metamorphic rocks form and what they are like.
Include the following words in your paragraph:
Heat
Pressure
Context and regional metamorphism
Foliated
Non foliated
Answer:
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Answer:
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Explanation:
please help me this assignment is due at 9
Answer:
The cell pictured in the diagram is a plant cell because there is are chloroplasts. Chloroplasts are located in plant cells and not in animal cells. Chloroplasts are where photosynthesis occurs, and photosynthesis does not occur in animals.
Bu soruyu yapamadım yardım edin lütfen????
Answer: c
Explanation:
cheese
Where can the process of lactic-acid fermentation be found
Answer:
Lactic fermentation is a minor process which occurs after glycolysis in anaerobic respiration.
Explanation:
In it, an enzyme found in most every organism called lactate dehydrogenase catalyzes a reaction between the NADH produced from glycolysis with the pyruvate molecules to create the NAD+ necessary to begin glycolysis
6.______________________ is a special type of muscle found only in your heart and causes your heart to beat.
smooth muscle
skeletal muscle
cardiac muscle
Explanation:
the answer is C cardiac muscle I'm pretty sure this is the correct answer
Mendel’s observations of pea plants started the field of ?
A. Probability
B. Genetics
C. Biology
What characteristic do sea stars and brittle stars have in common?
Both have flexible joints.
Both have teeth-like feeding structures.
Both use tube feet to catch prey.
Both have tentacles.
Answer:
They typically have a tough, spiny surface, which inspired their name (in Greek, echinos means “spiny” and derma means “skin”). They also have the unusual ability to regrow lost body parts, and sea stars and brittle stars can regrow arms if broken off or eaten
Explanation:
Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.
What are sea stars and brittle stars?Echinoderms with a star form that belongs to the class Asteroidea are known as starfish or sea stars. These terms are frequently used incorrectly to refer to ophiuroids, which are properly called brittle stars or basket stars in common usage. Due to their membership in the class Asteroidea, starfish are also referred to as asteroids.
The benthic (bottom-feeding) fauna of the maritime environment includes brittle stars. They belong to the Phylum Echinodermata, which includes marine organisms with radial symmetry, five components, and frequent spines. They are commonly referred to as echinoderms.
Sea stars and brittle stars both use tube feet to catch prey. Therefore, option C is correct.
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What type of plate boundary is illustrated in the image?
Answer:
convergent is your answer
Answer:
convergent
Explanation:
convergent is when 2 plates collide into each other
*EXTRA PTS* How much weight is needed for a 10 m high ball to achieve 400 J of potential energy?
Answer:
,Mass of the Body = 10 kg.
Height = 10 m.
Acceleration due to gravity = 9.8 m/s².
Using the Formula,Potential Energy = mgh
= 10 × 9.8 × 10 = 980 J.
(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.
∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.
∴ Kinetic Energy = 980 J.
(c). Kinetic Energy = 980 J.
Mass of the ball = 10 kg.
∵ K.E. = 1/2 × mv²
∴ 980 = 1/2 × 10 × v²
∴ v² = 980/5
⇒ v² = 196
∴ v = 14 m/s.
3. Yes - At maximum stretch the ball stops. The ball is now 2 meters plus x below the starting point where x is the stretch distance down. The total energy is all potential in the springs and gravitational and is m g (2 + x)
Explanation:
please help me
What are segments?
Answer:
each of the parts into which something is or may be divided.
John Ray introduced a new method of grouping by similarities in appearance.
True
False
Answer:
true
Explanation:
A mouse are 380 calories worth of cherries. A fox catches it . How many calories does the fox obtain?
Answer:
The correct answer would be - 38 calories.
Explanation:
Suppose that the same island experiences environmental
conditions that prevent the growth of large seeds. What do you think would happen to
the average size of finch beaks? Explain your reasoning.
Answer:
The size of finch's beak depends on the size of seeds.
Explanation:
The average size of finch beaks also changes because the size of finch beak changes according to the size of seed available. If the environment contains large sized seeds so the population of finch having small beak size increases due to food availability while on the other hand, if the region contains large sized seeds so the population of finch having big beak size increases so according to the size of seeds, the size of finch's beak also changes.
What is the strengths and weaknesses of the various developments in science and technology
Answer:
Strengths, Weaknesses, Opportunities and Challenges ... Some have “ centres for research and development” while others ...
I hit a substance with a hammer and it shatters.It is a
Answer:
non metal ,so it is brittle in nature
the carbon cycle review of terms
Answer:
A solid line would represent point on the graph that actually are included in the solution, while points that lie on dash lines aren't included in the solution.
The carbon cycle takes place in the environment, where plants, herbivores, consumers, and decomposers are present and fix the carbon in the environment.
What is the carbon cycle?The carbon cycle is important for the environment because carbon is present in the animal cell, in food, etc., and the carbon cycle is present in the given diagram. Here, the plant takes in the atmospheric carbon dioxide shown in the arrow 1, and the carbon dioxide is released by the animals and plants shown in the arrow 2.
Arrow 3 explains the rabbit taking the carbon from the food source, the plant releases oxygen and arrow 4 explains the carbon released by the decomposers from the animals and plants; and arrow 5 shows the carbon converted into fossil fuels. Arrows 6 and 7 both explain the release of carbon dioxide while plants use it for food synthesis.
Hence, the carbon cycle takes place in the atmosphere, where plants, herbivores, consumers, and decomposers are present and fix the carbon in the environment.
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Which explanation describes why males are more likely to exhibit sex-linked disorders than females?
A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.
Why does mutation happen regularly? *
Answer:
Explanation:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
a description of the forest ecosystem
For questions 6-15 use one of the following choices for each question. The choices may be used more than
once. Just write the letter for the choice not the word
A. Mutualism
B. Commensalism
C. Parasitism
6. One organism is harmed in a relationship
7. Two organisms benefit from a relationship
8. A tree with a Spanish moss population is unaffected by the relationship
9. A population of mice destroys grass roots in a field
10. A plotist that lives in a termite intestine digests wood eaten by the termite
11. A small insect called an aphid harms the stems and leaves of rosebushes
12. Bacteria make Vitamin B12 in the human intestine
13. Your cat has a severe case of fleas
14. A mosquito stabs the skin on your arm and a bite develops
15. Two organisms live together, one benefits and the other is neither helped or harmed by the
relationship
6C, 7A, 8B, 9C, 10B, 11C, 12A, 13C, 14C, 15B
Give advantages and disadvantages of asexual reproduction.
Answer:
Advantages and Disadvantages Of Asexual Reproduction
Advantages Of Asexual Reproduction Disadvantages Of Asexual Reproduction
The process requires less energy. Since the offspring is an exact copy of the parent, any negative mutation will also pass on to the offspring
How many valence electrons does this atom have? How do you know?
Answer:
5 valence electrons
Explanation:
valence electrons are the electrons at the ends of atom or in the valence cell. so there are 5 valence electrons.
Activity
Research and identify a common resource in your state and explain the consequences of rise in population on the resource.
Answer:
Pollution, crimes and overcrowding.
Explanation:
Lack of family planning is responsible for the rise of population. It brought many adverse changes in the environment such as pollution, crimes and overcrowding etc. Rise in population causes unemployment that leads to crimes in the society. It also produces pollution due to more human activities such as emission of fossil fuels and more industries should be built to provide basic needs to more population. Rise in population causes agricultural to be converted into residential area that leads to decrease food production.
How are the functions of the endoplasmic reticulum and the Golgi apparatus related? A. Golgi apparatus receives proteins and other materials from the endoplasmic reticulum, packages them, and distributes them to vacuoles. B. The nucleus directs the cell's activity, including any transfer of material between the endoplasmic reticulum and the Golgi apparatus. C. Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus. D. In order to function, both plant and animal cells require an endoplasmic reticulum and Golgi apparatus.
Answer:
Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus
Mitosis a single cell divides to produce two daughter cells what must happen in the original sound of the daughter cells has a complete set of chromosomes
Answer:
Explanation:
In mitosis, when a single cell divide into two daughter cell and each daughter cells have a copy of chromosomes, there must first be the copying of the chromosomes from the parent cell and after that the chromosomes are separated or there is separation of chromosomes into each of the daughter cells.
Please help!!!! Grizzly bears and polar bears are very closely related, so much so that they can reproduce to form hybrid offspring. Use your understanding of natural selection to describe how polar bears became a separate classification from the grizzly.
Scientists believe that at first these bears scavenged seal carcasses that had washed ashore, and gradually began to hunt the seals by waiting at the water's edge as the seals surfaced to breathe. This is believed to be an important step in the evolution of a new bear species, the polar bear
Over time the new polar bears were used to the cold climate and learnt how to fish, they then separated from the grizzly bears, they developed new creatures which would help them survive in one of the most dangerous climate.
Polar bears become separate classification from the grizzly by the natural selection known as divergent and adaptive evolutionary change.
Polar bears and grizzly bears are considered as closed to one another so they can interbreed. They both diverged from one another due to the harsh climate of the Arctic and the ecology of the region.
The changes that took place are camouflaging and pigment-free fur-coat that helped them in order to adapt to the different climates.The genetic mutation leads to such Adaptive changes when the polar bears migrated northwards.The populations living in different climates undergo natural selection that is divergent natural selection and the adaptive evolutionary changes that result in different species.Learn more about speciation:
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Please help it’s due in under 1 hour!!!!!
Explain how sexual and asexual reproduction both lead to better evolutionary fitness.
Answer:
Hope you get done. friend me back. and can I have brainliest
Explanation:
To get diversity in individuals, genetic differences are required, and different phenotypes must be expressed. Since sexual reproduction is more conducive to driving evolution than asexual reproduction, much more genetic diversity is available for natural selection to work on. Evolution can happen over time.
The term population dynamics would not be used to describe which of the following examples?
Α.
birth rates
B.
changes in population size
death rates
success of offspring reaching reproductive age
Answer:
Population size is influenced by the per capita population growth rate, which is the rate at which the population size changes per individual in the population. This growth rate is determined by the birth, death, emigration, and migration. Pretty much Birth rate or Death rate.
Explanation:
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