Final answer:
A medium-sized star is about the size of our Sun, which is approximately 1.4 million kilometers in diameter. Most nearby stars are of similar size, and the Sun is brighter and more massive than about 80% of the stars in the Galaxy.
Explanation:
When considering the size of a medium-sized star, one can generally refer to a star that is about the size of our Sun. The Sun itself has a diameter of approximately 1.4 million kilometers. Most nearby stars have typical diameters around this scale, fitting the definition of a medium-sized star. However, there is a diverse range of star sizes, with some much smaller and others much larger than our Sun.
Various measurements and observations indicate that while there are exceptions, a significant number of stars fall within the spectrum of being medium-sized, implying sizes that are quite similar to our Sun. Stars significantly more massive than the Sun are quite rare within our local cosmic neighborhood; within 30 light-years of the Sun, none exceeds four times the mass of the Sun.
The Sun is also more massive than most of the stars in our vicinity, being brighter than about 80% of the stars in the Galaxy, further underscoring its qualification as a medium-sized star. Therefore, when referencing a medium-sized star, the size of our Sun serves as an apt comparison.
how does turtle give birth.
Ryan wants to see if storing his batteries in the refrigerator will make them last longer. He goes to Target and buys four batteries of the same brand that have the same “Best if used by” date. Ryan keeps two batteries in his desk drawer for 12 months and puts the other two batteries in the refrigerator for 12 months. He then puts the batteries from the desk drawer into his Dad’s antique portable CD player and plays his Lady Gaga CD continuously until the batteries die. Ryan records the length of playing time. Ryan then uses the batteries from the refrigerator. He plays the same CD at the same volume until those batteries die. He then compares the length of playing time.
What makes speed a compound unit is that it includes units for _____ and _____.
A. velocity; time
B. distance; time
C. distance; velocity
D. velocity; acceleration
Answer:
the answer is B
Explanation:
Speed is in fact the the distance that something travels in time. Think about it, it makes sense, doesn't it? Speed is the amount of distance something achieves in a set amount of time.
an advantage of_____reproduction is the ability to reproduce quickly.
Chemical compounds are the source of energy for the primary producers called________________.
(There are two correct answers.)
a. consumers
b. photoautotrophs
c. chemoautotrophs
d. decomposers
Please help!
Photoautotrophs and chemoautotrophs, the primary producers, use light and chemical compounds respectively for energy. They play a crucial role in converting inorganic matter into organic, providing accessible energy to other organisms.
Explanation:The sources of energy for the primary producers known as photoautotrophs and chemoautotrophs are light and chemical compounds, respectively. Examples of photoautotrophs include plants and algae, which convert sunlight into chemical energy. Conversely, chemoautotrophs, such as certain bacteria, can use inorganic molecules as a source of energy. These forms of autotrophs are fundamentally responsible for converting inorganic matter into organic matter, making energy accessible for other organisms in an ecosystem.
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PLZZZZZ HELPPP!!!
All living organisms, including bacteria, plants, humans and other animals, are made up of one or more cells. Explain why all living organisms need to have DNA. Include the words genes and proteins in your explanation.
Proteins and nucleic acids both play vital roles in the structure and function of cells.
Part A: Describe the monomers that make up both macromolecules, in detail. (2 points)
Part B: Compare and contrast the functions of both proteins and nucleic acids in the cell. (2 points)
PLEASE HELP ME
Skeletal muscle cells specialize in contracting and relaxing. Which organism has skeletal muscle cells?A.amoebaB.kangarooC.bacteriumD.paramecium
the periodic table organizes elements by
A increasing atomic mass
B increasing atomic number
C decreasing atomic size
D different atomic color
Answer: B increasing atomic number
Explanation: A periodic table is the table that shows the arrangement of elements in the order of increasing atomic number. In the periodic table, the horizontal rows of elements are called periods while the vertical columns are called groups. All the elements in a given period have the same number of electron shell while all the elements in the same group have the same number of valence electrons (same number of electrons in the outermost shell of their atoms).
The blank revolves around earth as a natural satellite
Describe a plant’s circulatory system.
*There are no answer choices*
*I would appreciate it if you used accurate information, complete sentences, and make sure it makes sense*
Answer:
Explanation:
Water and dissolved minerals enter a plant's roots from the soil by means of diffusion and osmosis. These substances then travel upward in the plant in xylem vessels. The transpiration theory ascribes this ascending flow to a pull from above, caused by transpiration, the evaporation of water from leaves. The long water column stays intact due to the strong cohesion between water molecules. Carbohydrates, produced in leaves by photosynthesis, travel downward in plants in specialized tissue, phloem. This involves active transport of sugars into phloem cells and water pressure to force substances from cell to cell.
A cardiologist suspects that a patient has a heart problem. Either the valves between the atria and the ventricles or the valves between the ventricles and the body are likely at fault. To test the valves in this order, the cardiologist would
Answer:
answer 3
Explanation:
Sounds in the external ear depends on vibration of movable bones.
Please select the best answer from the choices provided
T
F
Sounds in the external ear depends on vibration of movable bones. The given statement is false.
What is movable bone and its function in hearing?Movable bone is present in the ear and the middle part of ear depends upon movable bones to hear the vibration of the sound. Since we know that bone has been known as connective tissue which has metabolically active and the main function of the bone has to provide the mechanical and structural support as well as perform movement, and to protect important organs of the body.
The bone has made up of the bone cells known as osteocytes and extracellular matrix. The total number of bone human body contain has 206 bones including the bones of spine, legs, arms, ribs, and skull. Bones are made up of calcium as well as carbonate and they have bone marrow in which blood cells are produced. By nature bones came in category of living and they are active tissue .
Therefore, Sounds in the external ear depends on vibration of movable bones. The given statement is false.
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witch statement is one of the three parts of a cell theory? A-all cells come from other cells B-cells come from crystals C-cells assemble themselves from whatever is around D-plant and animal cells are exaclty the same
The chromosomes in the nucleus of a cell contain a code that stores hereditary material known as?
Are all the cells in the your body identical?
a tree that sheds its leaves in the fall is exhibiting
Photoperiodism. Hope this helps!
what are the differences between a prokaryotic and Eukaryotic? and what are their functions?
Which method of genetic recombination is illustrated in the diagram?
a. crossing over
b. independent assortment
c. fertilization
d. tetrad formation
Answer: CROSSING OVER
How is flowing rock different from flowing water
Answer:
The flowing water is defined as the flow of water over the surface of the earth per unit time. It also includes the flow of water under the earth's surface as groundwater. This flow of water takes place along a non-horizontal plane as water flows from a higher elevated area to a region of low elevated area.
on the other hand, rock flow refers to the flowing of the rocks. This takes place over the less dense layer of the asthenosphere where the rocks are generally solid in nature but they have the tendency to flow during the time of deformation. This allows the lithospheric plates to move over the asthenosphere layer because of the convection current that forms in the mantle. It is possible due to the supply of heat from the interior of the earth.
This is how rock flow differs from water flow.
Looking at the chart above, the students need to develop a classification scheme to distinguish plant and animal cells. The presence of which of the following structures/organelles would be most useful for this purpose?
Answer: the answer for studyisland is cell wall
Explanation:
A scientist has discovered a new gene in oysters. Oysters with the dominant allele for disease resistance 'R' have been found to tolerate polluted waters better than oysters with the recessive 'r' allele. What term is used to describe an oyster that has two identical dominant alleles (RR) for this gene?
A) genetic hybrid
B) homozygous dominant
C) heterozygous dominant
D) heterozyous recessive
the answer is B I believe
The right answer is B) homozygous dominant
We speak of homo / heterozygosity about a locus, that can be represented by several alleles (version). The alleles are dominant or recessive between them.
*So homozygote: same alleles
*heterozygote: different alleles
Consider a locus and 2 alleles:
allele R: dominant
allele r: recessively
*heterozygote: R / r
*homozygous recessive: r / r
*homozygous dominant: R / R
A construction worker drops a tool from a bridge and it hits the water 3.6 seconds later. How far did it fall?
Two students described a part of Earth's middle layer.
Bob: The deepest part
Joe: The semi-fluid part
Which part of the middle layer did Bob and Joe describe?
A. They both described the mesosphere.
B. They both described the asthenosphere.
C. Bob described the mesosphere and Joe described the asthenosphere.
D. Bob described the asthenosphere and Joe described the mesosphere.
Answer:
Hi! The answer would be C! :3
Explanation:
I took the test and got 100% on it so if you need help with any other questions on that test just let me know! <3
The domestication of plants allowed humans to found the first permanent settlements because food supplies became more __________.
A.
varied
B.
stable
C.
necessary
D.
expensive
Please select the best answer from the choices provided.
cells are the basic __________of our bodies.
In eukaryotes, the process of the cell division is called mitosis, true or false ?
The given statement "In eukaryotes, the process of the cell division is called mitosis" is true. Because, mitosis is a type of cell division.
What is mitosis?Mitosis is a type of cell division in which the chromosomes divide evenly into two identical groups. Mitosis is the method by which most cells divide in the body, including somatic (non-sex) cells and some cancerous cells.
Mitosis is responsible for cell growth and development, tissue repair, and asexual reproduction in organisms that do not reproduce sexually. Eukaryotic cells divide into two identical daughter cells through a cell division method known as mitosis.
The cell's nucleus divides during mitosis, which is followed by the division of the rest of the cell. Cell division is necessary for development, growth, and repair in multicellular organisms, as well as asexual reproduction in some single-celled organisms, which make exact clones of themselves by dividing.
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Carrier is a person who has which of the following?
A. One recessive and one dominant trait
B. Two recessive alleles for a trait
C. Two dominant alleles for a trait
D. More than two alleles for a trait
Plz hurry I need two turn this in tonight
Question 2(Multiple Choice Worth 2 points) (02.04 MC)El Niño events are characterized by warmer than normal ocean temperatures near the equator in the Pacific Ocean. Which weather events are most likely to occur as a result?
a. Increased rainfall across the eastern Pacific Ocean
b. Decreased flooding across the eastern Pacific Ocean
c. Drought along the South American Pacific coastline
d. Colder winter along the South American Pacific coastline
El Niño events are characterized by warmer than normal ocean temperatures near the equator in the Pacific Ocean. The most likely weather event to occur as a result is increased rainfall across the eastern Pacific Ocean.
Explanation:El Niño events are characterized by warmer than normal ocean temperatures near the equator in the Pacific Ocean. As a result, the most likely weather event to occur is increased rainfall across the eastern Pacific Ocean. This is because the warmer ocean temperatures can lead to changes in atmospheric circulation patterns, which in turn can cause more precipitation in certain areas. The other options, decreased flooding across the eastern Pacific Ocean, drought along the South American Pacific coastline, and colder winter along the South American Pacific coastline, are not typically associated with El Niño events.
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Denise heard that little children pick food based upon color. She read many studies about food color and selection. She learned when foods are not the color people expect, it makes them think the flavor is different. To test this, she offered 100 kindergarten children colored mashed potatoes for lunch. The colors served were red, yellow, green, and blue. As the students selected the mashed potatoes, she wrote down which color each student selected. She then counted how many students selected each color.
There is an experimental design flaw in Denise’s experiment. What part of the experiment does it involve?
A. Independent Variable B. Dependent Variable C. Control D. Replicates