An identifiable luminous component of the interstellar medium known as a nebula can be made up of cosmic dust in addition to neutral, ionised, or molecular hydrogen.
Like the "Pillars of Creation" in the Eagle Nebula, nebulae are frequently areas where stars are being formed. These areas are where gas, dust, and other material formations "clump" together to generate denser regions that eventually attract other matter and reach a density where stars can form. Planets and other objects of the solar system are thought to be formed from the material that is left over.
Young bipolar planetary nebula Mz 3 in the constellation Norma has four different high-velocity outflows, dubbed lobes, columns, rays, and chakram, in addition to a bright core.
A planetary nebula called NGC 6826 can be seen in the Cygnus constellation. Despite the fact that other other nebulae also display this "blinking," it is often known to as the "blinking planetary."
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Muscular endurance is the amount of force that can be exerted by a single contraction of the muscle. True or false?.
False: The amount of force that can be exerted by a single muscle contraction determines muscular endurance.
What is the muscular endurance?The capacity of a muscle or group of muscles to sustain repeated contractions against a force over an extended period of time is known as muscular endurance. The more repetitions you could perform, the stronger your muscle endurance was.
Why is muscle endurance important?There are numerous reasons why muscular strength and endurance are crucial: increase the endurance with which you can carry out tasks like opening doors, lifting boxes, or chopping wood. lessen the chance of damage. assist you in maintaining a healthy weight.
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A mutation in the code for a trait may not always change the expression of that trait. What advantage does this provide cells?
Answer:
D:Some changes in the DNA sequence will not cause a change in the protein produced.
Explanation:
I did the test
Answer: D
Explanation:
I’m taking the test!
A graph of atmospheric carbon dioxide concentration over time is shown. Scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. Which of the following provides the best explanation for the increase of carbon in our atmosphere?
A. Frequent eruptions of large volcanoes.
B. Naturally occurring fluctuations of in the carbon cycle.
C. Utilization of fossil fuels by humans for industrialization.
D. An increase in the sea level due to melting of ice.
Answer:
C. Utilization of fossil fuels by humans for industrialization.
Explanation:
Frequent eruptions of large volcanoes were happening long before humans and will happen after humans too. They are not the reason why we are seeing so much CO2 in the last 200 years.
There are some naturally occurring fluctuations of carbon but not to the degree that we are seeing.
Melting of ice and sea levels rising is due to the global warming problem caused by our dependency on fossil fuels.
Which sphere of the Earth system includes snowfields, ice caps, and frozen ground?
A few bacteria are placed in a nutrient solution. After several hours, thousands of bacteria are present. Which life activities are primarily responsible for this? (1) digestion and movement (2) digestion and reproduction (3) circulation and respiration (4) excretion and coordination
Answer:
2
Explanation:
PLS ANSWER FAST
all the following are components of the cell theory except:
All living thing are composed of cells
Living organisms can arise from non living matter
cells are the basic units of structure and function in living things
new cells are produced from exsisting cells
differentiate between acidic salt and basic salt.
Answer:
acid have ph less than 7 and base have ph more than 7
Answer:
Basic salts result from the neutralization of strong base with a weak acid. Acid salts result from neutralization of strong acid and weak base.
sub-saharan africans show the largest genetic diversity of any human population. this is likely to have resulted from a. a small breeding population, maintaining genetic diversity. b. the accumulation of genetic mutations over long periods of time. c. the introduction of genetic diversity from europe and asia. d. the accumulation of genetic mutations over the last 10 years.
accumulations of genetic mutations over time.
Genetic and epigenetic changes compound over time to cause cancer. While aging and chronic inflammation are the major causes of epigenetic changes, carcinogenic substances, UV radiation, and other conditions can also cause genetic changes. Our prior exposure levels and life history are reflected in the accumulation and patterns of changes in normal cells. The majority of accumulated changes are regarded as passengers, although they are linked to cancer drivers as they accumulate. Although only hypothesized for genetic changes, this has been demonstrated for aberrant DNA methylation. However, modern technology has made it possible to assess uncommon point mutations, and research has revealed that the rates of their accumulation do actually correspond with cancer risk.
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Which one of the following factors does NOT affect Earth’s climate?
A. Ocean Currents
B. Energy from the Sun
C. Elevation
D. Soil Composition
Answer:
D
Explanation:
its just not any other one
Our soil cleans our water, feeds our trees and crops with vital nutrients, and controls numerous significant greenhouse gases in addition to helping to maintain the Earth's temperature. Thus option D is correct.
What is the soil impact on Earth climate?On a smaller scale, soil can also affect climate. More so than drier, looser soils, wetter or denser soils hold heat and stabilize the environment from temperature variations.
In deserts, the temperature can rise by more than 60 °F in a single day. The largest repository for terrestrial carbon is healthy soil. In the carbon cycle, soils are essential because they absorb carbon from decaying plant tissue.
By storing carbon (carbon sequestration) and reducing greenhouse gas emissions in the atmosphere, soils can be effectively managed to mitigate climate change.
Therefore, soil composition factors does NOT alter Earth’s climate.
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The shape of a blackbody curve depends on what single property of the blackbody?.
The shape of a blackbody curve depends on the single property of the temperature of the blackbody. It is the only single property of the blackbody that affects the shape of a blackbody curve.
Temperature completely determines the shape of a blackbody curve as it shows a wide variety of results by their amount in the increased or decreased state.
Blackbody Curve is the curve that represents the intensity of spread of the radiation that is emitted by any type of object. The curve drawn sometimes refers to a mathematical type of idealization which is known as a blackbody as it is an object that is capable of absorbing all kinds of radiation falling upon it.
Each curve will show an intensity of radiation that exists over a wide range of wavelengths as it is emitted at a particular temperature by the blackbody.
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Identify the three reactants for photosynthesis (HELP)
Answer:
the three reactants are carbon dioxide, water and sunlight.
there's not rly any explanation needed.
PLEASE HELP!!
1. a
2. b
3. c
4. d
5. e
6. f
7. g
8. h
small intestine -
large intestine -
Liver -
esophagus -
stomach -
gall bladder -
mouth -
pancreas -
Advantage of genetic connections
Disadvantages of genetic connections
Answer:
Advantage
Explanation:
- ups
what purpose of pond and indicater
Answer:
Healthy Ponds Are Indicators of Healthy Environments A pond can tell you if an environment is healthy based on the wildlife that visits, such as dragonflies and amphibians. Since the vast majority of life on earth relies on water for survival, it should be no surprise that most aquatic systems draw in a large variety of species.
Explanation:
glucose enters the epithelial cells of the small intestine against its concentration gradient. select the best explanation from the statements.
The best statement which explains is 'Glucose is co-transported with Na+, which moves down its concentration gradient into the cell'.
It is because the sodium/potassium pump is located in the plasma membrane of the cells.
To transfer the glucose material across the membrane, the Na+/K+ pump utilizes three molecules of ATP to shift potassium ions inside the cell and derives sodium ions outside the cell.
As a result of this, Na ions' concentration increases outside the plasma membrane while the concentration of potassium is higher inside the membrane.
This process is also known as secondary active transport because it drives energy from the primary active transport process.
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What is a species of bacteria in your body that helps protect you?
From the passage:
Human Microbiome: The Role Of Microbes in Human Health
Answer:
Bacillus Subtillis
Explanation:
There are many, many types of bacteria that protect us. But for me, the main one would be Bacillus Subtillis. Its found on our skin, and it uses poison to fight off other microbes. In alot of cases, this bacetria can be found in a ton of antibiotics.
Please Help Make Sure you explain your answer i will be marking brainliest to the first person who is correct:)
SCIENCE....,,,,
Answer:
D
Explanation:
Lower pressure= higher up in the water
anything that goes up to the twilight zone or ocean surface loses pressure. Deep ocean to trench is the only one that descends.
the somatic nervous system controls voluntary actions and the autonomic nervous system oversees involuntary actions.
The given statement is true that the somatic nervous system controls voluntary actions while the autonomic nervous system oversees involuntary actions.
The somatic nervous system is a part of the peripheral nervous system(PNS) that is involved in the voluntary control of skeletal muscle movement. It is in charge of all the bodily processes that we are cognizant of and have control over, including how our arms, legs, and other body parts move.
The peripheral nervous system's autonomic nervous system controls physiological functions that are carried out automatically, such as digestion, blood pressure, respiration, and sexual desire.
There are three physically separate divisions in it:
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Acellus - what is a gene?
A. a single chromosome that is not replicated.
B. a double stranded chain of base pairs that lives in the nucleus.
C. factors that are passed from parents to offspring.
D. the beginning sequence of a DNA that tells a ribosome where to attach and transcribe.
A gene are factors that are passed from parents to children.
C. factors that are passed from parents to children.What is a gene?The gene is a segment of a DNA molecule (deoxyribonucleic acid), responsible for genetically inherited characteristics. Each gene is made up of a specific sequence of DNA that contains code (instructions) to produce a protein that performs a specific function in the body.
With this information, we can conclude that Genes are considered the unit of heredity, as they contain the information - which is transferred from parents to children - necessary to guide the production of RNA molecules (ribonucleic acid) and proteins, which are decisive in the formation of the entire organism.
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what is active transport?
A. an organisms way of getting materials to its community
B. a cells way of transporting materials that uses energy
C. the nucleus’s way of transporting genetic information
D. when peroxisomes moving materials in a cell
Active transport is a cells way of transporting materials that uses energy.
What is active transport?Active transport is a type of passage through the membrane in which energy is expended for transport to occur. There is a movement of molecules from a region where there is a lower concentration of this molecule to where there is a higher concentration, which is against the concentration gradient.
When overcoming a force, it will need energy to be able to generate this transport, so the transport proteins will need ATP to generate this movement of molecules.
One of the best known molecules that performs this type of transport, and one of the most important in the cell to maintain ion homeostasis inside and outside the cell, is the sodium-potassium ATPase pump, which pumps sodium ions out of the cell and pumps potassium ions into the cell.
Therefore, we can confirm that active transport is a cells way of transporting materials that uses energy.
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1. B= Brown eyes b= blue eyes Mom= Bb Dad= BB What percentage of their children will have Brown eyes and what percentage will have blue eyes?
% of Brown eyes-
% of Blue eyes-
students slid a small wood block along a flat tabletop for a distance of 1.6 m. The data show
the motion of the block of wood.
Data for Motion of Wood Block
Time
Speed
(m/s)
0.0
2.6
0.2
2.2
2.
1.8
0.6
1.4
0.8
1.0
1.0
0.6
Which graph displays the motion of the wood block?
Answer: J
Explanation:
The motion of the block is decreasing with the period of time. So, the correct option is (J).
What is Motion?
Motion is defined as when an object changes its position with respect to time. In other words, the act of moving or the process of being moved. It can be described in many words such as displacement, distance, velocity, acceleration, speed etc.
The motion in a long line or a curve is called as Translation whereas the motion which changes the orientation of the body is called Rotation. In both the cases, all the points in the body have same velocity (having speed with direction) and same acceleration which is defined as time rate of change of velocity.
Motions are of two types:
1. Translation
2. Rotation
Some examples of motions are running, cycling, swimming, eating, drinking etc. Motion is caused by force, when we apply a force motion occur.
Thus, the motion of the block is decreasing with the period of time. So, the correct option is (J).
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What was Mendel's law of segregation?
Explanation:
The Law of Equal Segregation states that during gamete formation, the two alleles at a gene locus segregate from each other; each gamete has an equal probability of containing either allele.
hey i need bio help asap will give crown
A.) Deoxyribose sugar
B.) phosphate group
C.) Nitrogen base
select the correct text in the passage
a. the object orbits a white dwarf star
b. the object also appears to have 6 moons of its own
c.current images show that object is a rectangular in shape
d.it has slowed orbital. Orbiting it stars every 480 days
Explanation:
d . it has slowed orbiting it star every 480 days..
is answer
plz mark as brainliest plz friend
Help meh
In which state is a plant cell healthiest?
Submerged in a hypertonic solution, causing the cell to shrink
Submerged in a hypertonic solution, causing turgor pressure
Submerged in a hypotonic solution, causing turgor pressure
Answer:
Submerged in a HYPOTONIC solution causing turgor pressure.
Explanation:
HYPERtonic causes water to leave the cell. This harms the plant!
Hypotonic does the opposite.
Turgor pressure is important to keep the plant from wilting. Turgor keeps the water in plants.
Hope this is correct. Wishing you the best.
Which molecule synthesized by plants is a major source of energy for cellular processesin both plants and animals?
Answer:
The sun is the ultimate source of life for all living beings. In photosynthesis, plants transform light energy to chemical energy. Animals are receiving nutrition from eating vegetables. The only source of energy that a cell can use is a molecule called adenosine triphosphate .
In the most general terms, the study of sensation and perception is called psychophysics, a term that was first coined by ________.
In the most general terms, the study of sensation and perception is called psychophysics, a term that was first coined by Gustav Theodor Fechner.
In the field of science, psychophysics can easily be described as a combination of stimulus and sensation as these two terms are often considered to be one, but are different. The branch of psychophysics combines the branch of psychology with the branch of physics.
The term 'psychophysics' first came forward by Gustav Theodor Fechner. He was a well-established person in the field of psychology as well as physics. The reason behind bringing the concept of psychophysics, according to Fecher was that the relation between stimuli and sensation needs to be understood.
Over time, the complex ways in which the mind of a person, and its perception relates to the stimuli are studied under the complex branch of psychophysics.
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How many variations do you observe?
Answer:
Variation, in biology, any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation). Variation may be shown in physical appearance, metabolism, fertility, mode of reproduction, behaviour, learning and mental ability, and other obvious or measurable characters.
chromosomes or by differences in the genes carried by the chromosomes. Eye colour, body form, and disease resistance are genotypic variations. Individuals with multiple sets of chromosomes are called polyploid; many common plants have two or more times the normal number of chromosomes, and new species may arise by this type of variation. A variation cannot be identified as genotypic by observation of the organism; breeding experiments must be performed under controlled environmental conditions to determine whether or not the alteration is inheritable.
Genotypic variations are caused by differences in number or structure of Environmentally caused variations may result from one factor or the combined effects of several factors, such as climate, food supply, and actions of other organisms. Phenotypic variations also include stages in an organism’s life cycle and seasonal variations in an individual. These variations do not involve any hereditary alteration and in general are not transmitted to future generations; consequently, they are not significant in the process of evolution.
Explanation:
Brainliest please?
If it was alive at one time it will always be considered a biotic factor
T OR F
Answer:
True I think
Explanation: