Answer: c
Explanation: makes sense
The Earth's outer core is mainly composed of the liquid metals such as iron and nickel. Thus, the correct option is C.
What is the outer core of the Earth?The outer core begins approximately in the range of 2,889 km or 1,795 miles beneath the Earth's surface at the core-mantle boundary of the Earth and ends at 5,150 km or 3,200 miles beneath the Earth's surface at the inner core boundary of the Earth.
The outer core of the Earth is mostly composed of liquid iron and nickel. The Nickel and Iron alloy of the outer core is very hot, between 4,500° and 5,500° Celsius temperature. The outer core of the Earth is mostly made up of iron and nickel elements. This alloy is often written as NiFe because it is a combination of their chemical element symbols.
Therefore, the correct option is C.
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Suppose a scientist measures the amount of DNA per cell of a particular diploid species at various stages of meiosis. She finds that the meiotic cells contain 3.7 pg, 7.3 pg, or 14.6 pg of DNA. Match each stage of the cell cycle to the corresponding amount of DNA contained within a cell at that stage.
1. metaphase II2. prophase I3. G14. after cytokinasis of meiosis II5. telophase I before cytokinesis6. G2
Answer:
1. metaphase II - 7.3 pg.
2. prophase I - 14.6 pg.
3. G1 - 7.3 pg.
4. after cytokinesis of meiosis II - 3.7 pg.
5. telophase I before cytokinesis - 14.6 pg.
6. G2 - 14.6 pg.
Explanation:
The cell cycle begins at G1, where all cells in humans (except for the gametes) have 23 pairs of chromosomes, 46 in total, and without any part of the DNA being duplicated. This is the stage in which the cell will have 7.3 pg of DNA.
After G1 comes phase S, which is the phase in which the DNA is duplicated to prepare the cell for the oncoming division; so we can infer that the phase that comes after S, G2, will have twice the DNA the cell had initially: 14.6 pg.
With this amount of DNA, the cell enters the first part of meiosis, in which the homologous chromosomes will be separated into two cells that will each carry on with the second part of meiosis. In prophase I, the cell is just beginning the process of meiosis, so it has 14.6 pg of DNA. In telophase I, the cell still has that amount of DNA because cytokinesis hasn't happened yet, and that is the defining step that ends up actually dividing the cell into two.
Meiosis II begins after cytokinesis I, therefore, the homologous chromosomes have already been separated and each cell has now 7.3 pg. In metaphase II the cell has 7.3 pg, but when cytokinesis of meiosis II ends, the cell will be half the size that was just before, because the sister chromatids are separated - this is where the cell will only have 3.7 pg of DNA.
The cells produced by meiotic cells are gametes, having only 23 chromosomes and the lowest amount possible of DNA.
A student is studying plant cells under a microscope. She observes one set of
structures that she identifies as chloroplasts, and she observes another set of
structures that she identifies as mitochondria. Is it possible that the student has
correctly identified these structures?
Answer:
yes it is possible for the student has identified the structure correctly
Which lists metric units, in order, from smallest to largest?
kilogram, hectogram, decagram
decagram, decigram, centigram
milligram, centigram, decigram
decagram, hectogram, milligram
Answer:
milligrams, centigrams, decigrams, kilograms, decagram,hectogram
Explanation:
Answer:
milligram, centigram, decigram
Explanation:
Which procedures are examples of Descartes's rules for scientific reasoning? Check all that apply.
keeping a detailed record of the procedure and results of a scientific experiment
conducting an experiment to confirm the effects of gravity on Earth
accepting all of Descartes's theories as truth
answering a math problem using mental mathematics
solving an expression in steps using the order of operations
Answer: keeping a detailed record of the procedure and results of a scientific, conducting a experiment to confirm the effects of gravity on earth, solving a expression in steps using the order or operation
Explanation:
Descartes's rules for scientific reasoning include keeping a detailed record of all the procedures and results of a scientific experiment, conducting an experiment to confirm the effects of gravity on Earth, and Solving an expression in steps using the order of operations. Thus, the correct options are A, B, and E.
What are Descartes's rules for scientific reasoning?
Descartes described the important rules which he established to make sure that the conclusions made in the experiment are true. These rules are as follows:
1. accepting nothing as true that is not self-evident, and perform experiment to prove anything
2. Divide the problems into their simplest parts, and keeping the detailed records of each and everything
3. Solve problems by proceeding in a stepwise order of operations in a scientific study.
Therefore, the correct options are A, B, and E.
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Please help me I do not know what is the answer
Answer:both a and b
Explanation:
cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy and form molecules of ATP which is energy.
endocrine glands differ from exocrine glands in that
Answer:
C. endocrine glands are ductless and release hormones and exocrine glands release secretions through ducts
succession is how a community changes over time.
O Climax
Ecological
Primary
Secondary
HELP PLEASE//40POINTS AND I GIVE BRAINLIEST
Answer:
I will put the answer in the Explanation.
Explanation:
Number of Normal Cells: 30 trillionShape of Cells of Normal Cells: UniformNumber of Nuclei of Normal Cell: Spheroid shape, single nucleusAmount of Cytoplasm of a Normal Cell: Large cytoplasmic volumeNumber of Cancerous Cells: We don't all have cancer cells in our bodies. Our bodies are constantly producing new cells, some of which have the potential to become cancerous. At any given moment, we may be producing cells that have damaged DNA, but that doesn't mean they're destined to become cancer.Shape of Cancerous Cells: IrregularNumber of Nuclei in a Cancerous Cells: Multiple, enlarged nucleoliAmount of Cytoplasm in a Cancerous Cell: Small cytoplasmic volumeAnswer:
I will put the answer in the Explanation
Explanation:
Number of Normal Cells: 30 trillionShape of Cells of Normal Cells: UniformNumber of Nuclei of Normal Cell: Spheroid shape, single nucleusAmount of Cytoplasm of a Normal Cell: Large cytoplasmic volumeNumber of Cancerous Cells: We don't all have cancer cells in our bodies. Our bodies are constantly producing new cells, some of which have the potential to become cancerous. At any given moment, we may be producing cells that have damaged DNA, but that doesn't mean they're destined to become cancer.Shape of Cancerous Cells: IrregularNumber of Nuclei in a Cancerous Cells: Multiple, enlarged nucleoliAmount of Cytoplasm in a Cancerous Cell: Small cytoplasmic volumeWhy does an onion bulb shrivel after the green leaves have sprouted?
Just need your help as fast as you can
Answer:
Plants produce many leaves but no bulbs/ Plants are stunted/ worms boring into roots/ Leaves turn silvery and white streaked or blotchy/ leaves may become distorted/ Leaves die back from tips; root turn pink to red to yellow; yields is reduced.
Explanation:
Which one is it correct here?
Answer:
C
Explanation:
Please help me if you can with this prompt
Answer:
I and IV
Explanation:
The skeletal system works as a support structure for our body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and tissues and stores calcium and minerals.
Predict what would happen to typical animal cells placed in 0.OM and 1.0M sucrose solutions, and
explain your prediction. The animal cell molar concentration is 2.0M.
Answer:
the cells would excrete water into the extracellular solution
Which part of an atom is
found outside the nucleus?
A. Electrons
B. Neutrons
C. Protons
Answer:
electrons
Explanation:
what do Prokaryotes and Eukaryotes have the same of?
Both have a nucleus.
How does the process of osmosis ensure that our cells maintain homeostasis?
Answer:
Osmotic homeostasis is maintained despite the influence of external factors such as temperature, diet, and weather conditions. Osmosis is the diffusion of water across a membrane in response to osmotic pressure caused by an imbalance of molecules on either side of the membrane.
choose your favorite animal to use for your organism.
Recorded the following information the name of the organism, where it lives,
what it eats, and what eats it.
Create a food web depicting the feeding relationships between all organisms, write a paragraph explaining the flow of energy through a food web, write a paragraph explaining the flow of matter through a food web.
Answer:
panda. Eastern and Southern China. birds or rodents
Explanation:
a Rodent eats bamboo and a panda eats a rodent. A leopard eats a panda.
A beetle eats grass. A fish eats the beetle. The panda eats the fish
1 point
3. When gametes (sex cells) are produced from a body cell during normal
meiosis, which of the following describes the number of chromosomes in
each new sex cell? *
A. Each resulting cell has the same number of chromosomes as the original body cell.
B. Each resulting cell has twice the number of chromosomes as the original body cell.
C. Each resulting cell has one-half the number of chromosomes as the original body
cell
D. Each resulting cell has one-fourth the number of chromosomes as the original body
cell.
Answer:
B
Explanation:
Keystone species affect the populations of many other species in a community.
True
False
Answer:
True
Explanation:
Describe how animals adapt to the desert. Be specific.
Answer:
The two main adaptations that desert animals must make are how to deal with lack of water and how to deal with extremes in temperature. Many desert animals avoid the heat of the desert by simply staying out of it as much as possible. ... The kidneys of desert animals concentrate urine, so that they excrete less water. Hope this helps!!
Explanation:
Answer:
The two main adaptations that desert animals must make are how to deal with lack of water and how to deal with extremes in temperature. Many desert animals avoid the heat of the desert by simply staying out of it as much as possible. ... The kidneys of desert animals concentrate urine, so that they excrete less water.
How does water transfer when it evaporates from the ocean?
Answer:Most of the water that evaporates from the oceans falls back into the oceans as precipitation. Only about 10 percent of the water evaporated from the oceans is transported over land and falls as precipitation. Once evaporated, a water molecule spends about 10 days in the air.
Explanation:
1a Make a claim: What happens to orbital time of the planet as the mass of the sun
increases?
Answer:
It causes a decrease in the orbital period.
factors that affects potential and kinetic energy
Answer:
See Below.
Explanation:
Kinetic energy depends on the potential energy of an object but they both have similar factors as they are inter-related. Kinetic energy is the motion of the object depending on its potential.
Potential energy is a positional based value, it literally means what it says, the potential or possibility for the creation of energy.
To demonstrate this think of dropping a ball off of a building:
The potential energy of that ball will be greater if the ball is dropped from a higher floor than a lower one. It will also be greater or lower depending on the mass of the object (from the formula in physics F=ma or Force = mass x acceleration). Gravity is another factor. If we drop a ball on Earth and then on the Moon, where the gravitational pull is 1/6th that of the Earth's, of course it will not be the same.Many parts of plants are involved in reproduction. Which of the lists below accurately denotes parts that have a direct role in the reproduction of plants?
Flowers, Cones, Roots
Cones, Stems, Stomata
Cones, Flowers, Fruit
Stems, Leaves, Flowers
Answer:
Cones, Flowers, Fruit
Explanation:
The parts of plant are either said to be vegetative or reproductive. The vegetative part are those parts of a plant that have nothing to do with reproduction (sexual). The reproductive parts are those parts that have to do with the reproduction. According to this question, the CONES, FLOWERS, AND FRUITS are those parts that have a direct role in the reproduction of plants.
- Cones, also called strobili, are structures on which gymnosperms bear their seeds/reproductive structures. The cones can either be male or female.
- Flowers are reproductive structures unique to a group of plants called ANGIOSPERMS. The flowers can either be male called STAMEN or female called PISTIL.
- Fruits are the matured ovary of a flower, which bears in them, the seed of the plant. They are formed after fertilization has occurred in the ovary. Hence, they are involved in reproduction.
The list that accurately denotes parts of a flower that has a direct role in reproduction is ; ( B ) Cones, Flowers and Fruits
Cones are parts of a plant where gymnosperms bear its seeds, they are found in Non-flowering plants containing the reproductive organs of the plants.
Flowers are unique to flowering plants, they are contain the male and female reproductive gametes in plants ( pollen grains and ovules ).
Fruits contains the seed of plants and they are formed after the pollination of the ovules by the pollen grains contained in the pollen .
Hence we can conclude that the list that accurately denotes parts of a flower that has a direct role in reproduction are; Cones, Flowers and Fruits.
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Answer the following questions:
4. List the 4 membrane components you can find in a cell membrane:
HELP ASAP!! 3 sentences please!!!
what is the structure and functions of RNA?
Answer:mrna Serves as intermediary between DNA and protein; used by ribosome to direct synthesis of protein it encodes
Trna Carries the correct amino acid to the site of protein synthesis in the ribosome
Explanation:
Explain what happens to the energy that is not transferred from one organism to another.
Cells are the building blocks of life, yet atoms and molecules are smaller than cells. Why are cells, not atoms, the basic building blocks of life?
The basic unit of life has to be a living thing, atoms aren't alive yet they make up cells, which are alive. However, atoms are building blocks of everything. Yet cells themselves are living, therefore are the building blocks of all forms of life.
Atoms are smaller than cells. Yet cells are the building blocks of life because atoms are not living, and living organisms are made up of cells because cells are living components.
What are cells and atoms?Cells are the basic components of living organisms. Atoms are the basic and smallest unit of matter that is nonliving.
Since atoms do not have life, they cannot be the fundamental building block of life; nonetheless, they do makeup living cells.
Atoms are the fundamental units of matter, nevertheless. However, because cells are living entities in and of themselves, they serve as the foundation for all life.
Thus, cells are larger than atoms. However, as atoms are not alive, cells are the fundamental unit of life, and since cells are living entities, they are the foundation of all living things.
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FReE sTuFf BrOooOooOOoOO
Question tho(because they take it down if you don't)
What is the purpose of EaTiNg?
Will give Brainliest :')
Answer:
We eat because we are sad and deprived of love. That one compliment you got from 5 years ago from a girl? Yeah, you still remember that don't you? Well, guess what, now she's married to a guy more handsome than you. When she gave you that compliment, she forgot about it a day later. Why are you still holding on? Eating tubs of icecream any crying yourself to sleep will do no good. Time to pack it up Nickocado Avocado.
Nah I'm joking :')
A ________ has to survive challenges,adapt,and be able to explain new information and developments.
A)Scientific Law.
B)Scientific Theory.
Answer:
b) scientific theory
Explanation:
Would an observer on the moon see earth phases?Explain
Answer:
how it changes every so often
Explanation: