Answer:
40
weight= 400N
acceleration due to gravity= 10m/s2
now
force=m*g
400=m*10
m=40kg
Molecules of DNA are composed of long chains of?
two long polynucleotide chains
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together
Molecules of DNA are composed of long chains of nucleotides.
What are nucleotides?Nucleotides are the building blocks of DNA and RNA adenine (A), thymine (T), guanosine (G), and Cytosine (C. In RNA, uracil (U) is present instead of thymine.
The pentose sugar is the ribose sugar in RNA and deoxyribose sugar in DNA. In deoxyribose sugar, oxygen is absent from the 3' carbon.
Phosphate groups are attached through the 5-C of pentose sugar by an ester bond. One polynucleotide chain is formed when the phosphate of one nucleotide forms a phosphodiester bond with the sugar of another nucleotide.
A double-stranded structure is formed by base pairing between nucleotides. The adenine binds to thymine by two hydrogen bonds and guanine binds to cytosine by three hydrogen bonds.
Therefore the molecules of DNA are composed of long chains of nucleotides.
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which layer of the earth is about 85% of iron
Answer:
the mantle
Explanation:
2885 kilometers thick and is the middle layer of the Earth
the earth's mantle
the mantle is made up of several minerals such as iron, magnesium, silica and oxygen.
How many Calories of complex carbohydrates were converted to sugars?
help me! i'll mark brainliest! overdue assingment!
Answer:
Part A: Fossil Evidence
Part B: Biogeographical Evidence
Part C: Anatomical Evidence
Explanation:
plz thank it
Answer:
Here u go I hope this can help u!!
Explanation:
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
Which cell structures work together to get and use energy?
Answer:
The Mitochondria
Explanation:
Answer:
The cell wall and the chloroplasts.
Explanation:
The chloroplasts help generate energy in the plant cells.
The_______
is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah
Jesus directed them not to tell anyone else.
Answer:
Messianic secret
Explanation:
The Messianic secret is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah. Jesus directed them not to tell anyone else.
Hope this helps!
pls mark brainliest :)
How does the force of gravity move objects in the solar system?
Answer:
One of the most noticeable effects of gravity in the solar system is the orbit of the planets. The sun could hold 1.3 million Earths so its mass has a strong gravitational pull. When a planet tries to go past the sun at a high rate of speed, gravity grabs the planet and pulls it towards the sun
Explanation:
If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?
Answer: DNA
Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer
The author mentions that Shine made several mistakes in her experiment. Describe one major mistake that Shine made.
Answer:
theres no expirement attached, attach an expirement and i can answer
Explanation:
Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?
Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?
The answer is C ( stratus, altocumulus, cirrus )
Answer: it’s C
Explanation:
What biotic factors might affect a population of fish? Check ALL that apply.
predators
prey
light
bacteria
Answer:
Explanation: Abiotic factors for fish is water, temperature, amount of dissolved oxygen in water, etc. Penetration of sunlight is also important in fresh water habitat. Biotic factors are predators, disease causing organisms, organisms available as food, population density of competitors, etc.
Explanation:
Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability A. A tank that includes several goldfish B. Tundra region that has many penguins C. A pine tree in which three groups of birds live D. A rainforest that has many different types of plants and animals
Answer:
definitely D because a rainforest is extremely vast when it comes to different species
Explanation:
brainliest plz?
The ecosystem which is most likely has the greatest biological diversity and therefore the highest sustainability is a rainforest that has many types of plants and animals. Therefore, the correct option is D.
What is ecosystem?An ecosystem refers to the biological community where the biotic as well as the abiotic components interact with each other and influence each other.
It encompasses all the living organisms in a specific area as well as physical and chemical factors that shape their environment such as air water soil climate and environment. They play an important role in functioning the earth's biosphere, as they provide a range of essential services.
The study of ecosystem and interaction between is components is referred to as ecology. Hence, the correct option is D.
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How does climate change contribute to the increase of the rate of diseases
Which of the following solutions is neutral?
Group of answer choices
a solution with a pH of 14
a solution with a pH of 2
a solution with a pH of 7
a solution with a pH of 9
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Question 4
Potassium hydroxide has the chemical formula KOH. It feels slippery and is used in cleaning liquids. Based on this description, potassium hydroxide is most likely a(n)?
Group of answer choices
acid
base
neutral solution
pH indicator
first to answer gets the brinllest
Answer:
Kleenex
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The iris of the human eye can have many colors, including brown, blue, green, and hazel. How does polygenic inheritance explain why many iris colors are possible?
Answer:
Some physical characteristics, such as the color of the human skin or eyes, are controlled by at least two genes. These traits are known as polygenic traits. The number of genes that determine the color of the iris is unknown, but the most significant of them are found in Chromosome 15 and they are named OCA2 and HERC2. These genes are associated with the production of melanin.
Explanation: Polygenic inheritance describes the inheritance of traits that are determined by more than one gene. These genes, called polygenes, produce specific traits when they are expressed together. Polygenic inheritance differs from Mendelian inheritance patterns, where traits are determined by a single gene. Polygenic traits have many possible phenotypes (physical characteristics) that are determined by interactions among several alleles. Examples of polygenic inheritance in humans include traits such as skin color, eye color, hair color, body shape, height, and weight.
What are the three main components of a DNA molecule?
A. a sugar, a nucleotide, and an amino acid
B. a sugar, a water molecule, and a nitrogenous base
C. a sugar, a phosphate group, and a nitrogenous base D.
a sugar, a phosphate group, and an amino acid
Answer:
a sugar, a water molecule, and a nitrogenous base
Explanation:
Answer:
a sugar, a phosphate group, and a nitrogenous base
Explanation:
i had it for study island that was the correct answer
Nucleic acids _______.
A.) combine to form carbohydrates
B.) store and transmit hereditary information
C.) are made up of amino acids
D.) form polysaccharides
B - store and transmit hereditary information
FILL IN THE BLANK!!
Linnaeus developed two groups for classifying organisms: genus and _____
Answer:
Species
Explanation:
I majored in Biology
Answer:
Species I got 90% but this one was right
Explanation:
proof
This animal DOES NOT have live birth, instead this animal...?
Answer:
The platypus is one of only five species of monotremes in the world. These are mammals that lay eggs instead of giving birth to live young.
:-))
6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.
PLZ HELPPP!!!!!!!!!!!!
CRQ Question: What is the difference between weather and climate?
What are the geographic conditions that affect your area?
Hooters of 2 g of sugar in 500 g of water what was the mass of a solution formed formed
Will do the brainlest
Answer:
Explanation:
The answer would be 502 grams because of the law of conservation of mass, you can't create or destroy mass so then 2 grams plus 500 grams is 502.
Answer:1,000 grams
502 grams
500 grams
498 grams
Explanation: The answer would be 502 grams because of the law of conservation of mass, you can't create or destroy mass so then 2 grams plus 500 grams is 502. I am 100% positive that B is correct.
what happens when a person is infected with live pathogens
Answer:Once you're infected, viruses invade host cells within your body. They then use the components of the host cell to replicate, producing more viruses. After the replication cycle is complete, these new viruses are released from the host cell. This usually damages or destroys the infected cells.
Explanation:
Answer:
Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or through wounds or bites that breach the skin barrier. Organisms can spread—or be transmitted—by several routes.
Explanation:
which describes a eukaryotic cell,but not a prokaryotic cell?
Which organism cannot perform asexual reproduction?
humans
fungi
earthworms
potatoes
Answer: Humans
Explanation:
They perform sexual reproduction.
Which is true of prokaryotic and eukaryotic cells?
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
Eukaryotic cells are simpler than prokaryotic cells.
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
Prokaryotic cells are larger than eukaryotic cells.
Explanation:
the answer to this question is prokaryotic cells lack memebrane bound organelles and eukaryotic cells contain membrane bound organelles
Please help I'm behind
Answer:
The first answer is rainfall, and the second answer is the last one
Explanation:
1.
Rainfall is measured with a rain gauge in inches/millimeters - Most modern rain gauges generally measure the precipitation in millimetres in height collected on each square meter during a certain period, equivalent to litres per square metre. Previously rain was recorded as inches or points, where one point is equal to 0.254 mm or 0.01 of an inch.
2.
Climate is the weather conditions prevailing in an area in general or over a long period. The other 3 describe the weather conditions in a place for just a week, or day while climate is measured annually (basically over a long time)
Good luck with the rest of your exam, I hope you catch up with all your work and do well :)
Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Check all that apply. Both of their adult forms look very similar. They both had a tail as an embryo. Their arm and leg structure is similar, but may have a different function. There are fossils of an organism that is half man, half dog in the fossil record. Both had gill slits when they were born.
Answer:
They both had a tail as an embryo.
Explanation:
Both human and dogs have tail as an embryo. Temporary tail-like structures are present in the human embryo. These tail like structure develop around the fifth or sixth week of gestation, having about 10 to 12 vertebrae and removed when it reached to its full development stage while on the other hand, tail present in dog's embryo also developed with time and we can see when the dog baby is fully formed.
Answer:
They both had a tail as an embryo.
Their arm and leg structure is similar but may have a different function.
Explanation:
They both had a tail as an embryo.Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species. These vestigial structures might be found in many animals, including human beings. Vestigial structures were plenty functional for common ancestors. But with evolution, they degenerated, stunted, and became rudimentary for some of the new species.
During the first 4 months of embryogenesis, all mammals have a tail at some point in their development. Dogs develop this structure and keep it during their whole lives, but humans lose it with time during embryogenesis. The tail disappears, and its forming vertebras get fussed with each other composing the coccyx, which represents a vestigial structure. This tailbone is the remnant of a missing tail.
In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function.
Their arm and leg structure is similar but may have a different function.The fact that whales, humans, and dogs all have the same bones in the same order, but they matured differently in later embryological development, is an example of homologous characters.
Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.
These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.
These homologous characters are common in organisms related and that share a common ancestor.
What is "A C G G A T C G" as an mRNA strand?
Please help would mean a lot tried looking up the answer but I have to pay to get answers.