Answer:
stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.
Explanation:
Answer:
The way a star dies depends on how much matter it contains—its mass. As the hydrogen runs out, a star with a similar mass to our sun will expand and become a red giant. When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant.
Explanation:
what is the mystery element? is this a nonmetal, metal, or metalloid?
Answer:
This is most likely a nonmetal
Explanation:
Since it is gas at room temp it is definitely tell us that this is not a metal, second, it states that it is not conductive, brittle, magnetic, or ductile giving us the impression that it is a nonmetal and not a metalloid.
Answer:
It is fluoride which is a nonmetal
Explanation:
plz help asap! The activity of many cellular enzymes is regulated by activators and inhibitors. Enzyme activity is also regulated in eukaryotic cells by which of the following mechanisms?
Compartmentalization and restricting enzymes to specific organelles or membranes
Secreting enzymes out of the cell
Limiting the availability of substrates
Changing the primary structure of enzymes
Answer:
compartmentalization and restricting enzymes to specific organelles or membranes
Cellular steroid gradients are produced by the compartmentalization of enzymes into various organelles of a cell, and this might impact how well the various steroid products are balanced. Thus, option A is correct.
What is Compartmentalization?In biology, the biomembrane, or biological membrane, effectively compartmentalizes enzymes by allowing them to perform only certain functions within a limited area.
The enzymes may be located on the membrane surface or inside the defined compartments.
A percentage of the enzymes would likely not work or their ability to catalyze reactions would likely be insufficient if there was just one cellular compartment.
This is because enzymes catalyzing distinct reactions frequently have variable temperature and pH optimums.
Therefore, Compartmentalization and restricting enzymes to specific organelles or membranes.
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5. Define Revolution:
Answer:
an overthrow of a government or social order by force , in favor of a new system.
Explanation:
Carefully analyze the above chart. After a natural disaster takes place, which of the following sequences best identifies the three phases of recovery that take place?
A)
risk, avoidance, reconstruction
B)
restoration, reconstruction, reactivity
C)
emergency, risk, restoration
D)
emergency, restoration, reconstruction
E)
risk, reactivity, restoration
Answer:
e
Explanation:
7) What percentage of ppm of dissolved oxygen indicates good water quality?
a) 6.7
b) 8
c) 4.5
d) Below 4.5
Answer:
The answer is c. 4.5
In this Landsat image of a rain forest, healthy vegetation appears red and deforested areas appear light blue. What explains the
difference in colors?
A)
Colors are assigned to different reflected sound waves.
B)
Colors are assigned to different absorbed electromagnetic energy.
Colors are assigned to different reflected bands electromagnetic waves,
D)
These are the colors of the reflected visible light on Earth's surface.
Answer:
Colors are assigned to different reflected bands electromegnetic waves.
Explanation:
What factor most affects whether a mutation will be passed to offspring?
ANSWER PLEASEEEEEEE
Answer:
Mutations are only passed on to offspring when they occur in germ cell DNA, which are the cells that create sperm or ova. ... The mutation will be inherited only if it occurred on a chromosome in either the sperm cell or the ova cell out of many that eventually unite to form a zygote.
They are present in all body cells and can be passed down to new generations. Acquired mutations occur during an individual's life. If an acquired mutation occurs in an egg or sperm cell, it can be passed down to the individual's offspring. Once an acquired mutation is passed down, it is a hereditary mutation
I hope this helps.
Pioneer species are species that enter the area _?
third
second
fourth
first
Answer: The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.
Explanation:
Using your knowledge of the water cycle, why do you think high sea surface
temperatures correlate to a large amount of water vapor in the atmosphere?
Answer:
Explanation:
The correlation between sea surface temperature and water vapor is that both are driven by seasonal changes. They both increase in the hemisphere during summer. Seasonal changes in water vapor are, however, more evident across the land, largely due to changes in land surface temperature.
(ONLY ANSWER IF YOU KNOW)
The excerpt below was written by Henry Stimson in 1941:
The atomic bomb was more than a weapon of terrible destruction, it was a psychological weapon
What did Stimson mean by this statement?
A. US leaders had tricked the Japanese into thinking they were more powerful than they were
B. Skillful use of the atomic bomb could force opponents to make concessions.
C. The atomic bomb was an ineffective way to end war
D. The atomic bomb was not quite as dangerous as many people thought
Answer:
C
Explanation:
The atomic bomb was an ineffective way to end war
Use a punnett square to calculate the following:
George is the youngest child in a family that includes 4 children. All of the children have the recessive phenotype-attached earlobes. However both parents have unattached earlobes, the dominant trait. Use the letters G. g and answer the following:
What is the genotype of the mother?
What is the genotype of the father?
What percentage of the offspring would express the recessive trait?
Answer:
Father - Gg
Mother - Gg
25 percentage
Describe the difference between a hot cup of water and cold in terms of thermal energy.
Answer: If you had two cups of water, one filled with hot water and another with cold water, the cold water will retain more molecules. The compounds that make up hot and cold water are the same. One oxygen and two hydrogen atoms make up each molecule. The pace at which the molecules wobble about is the disparity between them.
Explanation:
True or False: Competition occurs between individuals of the
same species that use the same resources?
Answer:
true
Explanation:
because competition is a same resources
Male cats are either black (B) or orange (O). Females are black, orange, or calico, which has patches of black and
orange. Calico is formed from the codominance between the two alleles in the heterozygote, so a calico cat is (XB
xº). Give the genotype and phenotype ratio of a cross between an orange male cat and a calico cat.
Given Brainly...
Why should we recycle?
Answer:
because we are humans its
Explanation:
NATURAL
Prokaryotes do not have a nucleus.
Explanation:
Prokaryotes do have their genomic DNA concentrated and localized to a small area within cell. so its not accurate to say that they do not have a nucleus.
What is the function of cytokines?
A. Awaken neighboring cells
B. Trigger inflammation
C. Trigger adaptive immunity
D. All of the above
Answer:
D. All of these....
Explanation:
....
Answer:
It's D; all of the above
Calculate the mass of the book on the moon.
On moon surface gravity (g) is 1.6 N/kg
Answer:
The Moon has a smaller mass than the Earth and so the pull of gravity by the moon on an object is smaller than on the earth. The moon has a smaller gravitational field strength. On the Moon, g = 1.6 N/kg.
Explanation:
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4. Sunlight, water, and carbon dioxide are environmental factors that affect the rate of photosynthesis?
What would happen to the rate of photosynthesis if producers did not get enough of one or more of these
factors?
Answer:1.Yes plants take in carbon dioxide for "air" they need water to keep hydrated sunlight helps it make food.
2.Then the entire process of photosynthesis would crash. If no carbon dioxide the plant would not be able to breath and die, No water and it dies of thrist and no sunlight and the plant shivers and dies.
What organelle is pictured here?
Golgi complex
Mitochondria
Nucleus
Endoplasmic Reticulum
Answer:
endoplasmic reticulum
Answer:
Mitochondria
Explanation:
This looks nothing like the Golgi complex , Endoplasmic Reticulum, or the Nucleus. For whatever reason, it is not letting me post pictures, but Golgi complex and Endoplasmic Reticulum looks like loose spaghetti and the Nucleus looks like a ball. The Mitochondria has a bean shape with an inside like this.
why flies fly?
explain what do you think?
Answer:
They have wings that flap back and forth
During photosynthesis, plants absorb energy from sunlight, they take in water from the soil using their roots, and they take in carbon dioxide from the atmosphere What is produced in the leaves of plants, in addition to oxygen? OA. hydrogen B. sugar C. minerals OD. all of these
Answer:
B. sugar
Explanation:
The products are O2+C6H12O6 (aka sugar)
Which molecule is responsible for capturing energy from photons (light particles)? A. Chlorophyll B. NADPH C. ATP D. Hydrogen ions
Answer:
chlorophyll
A pigment molecule in the photosystem absorbs one photon, a quantity or “packet” of light energy, at a time. A photon of light energy travels until it reaches a molecule of chlorophyll.
Explanation:
A sperm cell has a tail 40 micrometers long and a student draws it 40mm long. Calculate the magnification
Answer:
The formula for calculating magnification is:
Magnification = Size of drawing / Actual size
Size of drawing = 40 mm
Actual size = 40 micron meter
Convert 40 mm to micron unit: 40 * 1000 = 40,000 micron
Magnification = 40,000 / 40 = 1000.
The magnification is 1000 X.
This answer means that the drawing is 1000 times bigger than the actual size of the cell.
a_fault is from the hanging wall drops down
Answer:
If the hanging wall moves down relative to the footwall, the fault is a normal fault. Normal faults are caused by tensional stress, or stress that pulls rocks apart
Explanation:
Which of these factors makes nuclear energy unsustainable?
A. Nuclear energy requires wind turbines.
B. Nuclear power plants cost the most to build
c. Nuclear energy generates too much toxic waste.
D. Nuclear power plants last the longest.
Answer:Nuclear energy generates too much toxic waste.
Explanation:
got it right on the quiz
...Can someone help me identify the stages of these cells?
Answer:
hope this helps you out good luck
Scientists find evidence of a large meteor impact on the coast of the Yucatán Peninsula in Mexico. What can the scientists most likely expect to find in the layers of rock that are about the same age as
the impact?
evidence of the mass extinction of many species
evidence of a gradual change of one species over time
evidence of a rapid change in one species
evidence of the stability of many species over time
Answer:
evidence of a gradual change of one species over time
Explanation:
Scientists can most likely expect to find evidence of the mass extinction of many species in the layers of rock that are about the same age as the impact. Therefore, option (A) is correct.
What is mass extinction?Mass extinction refers to a widespread and rapid decrease in the biodiversity on Earth, where a large number of species become extinct within a relatively short period of time.
The impact of a large meteor on the Earth can cause widespread destruction and have far-reaching consequences, including the extinction of many species. The impact can cause a global environmental crisis, which can include the release of massive amounts of dust and debris that block sunlight, leading to a drop in temperature and changes in climate.
These changes can have catastrophic effects on living organisms, particularly those that rely on photosynthesis for survival. As a result, scientists can expect to find evidence of the mass extinction of many species in the layers of rock that are about the same age as the impact.
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How do our bodies have so many different types of cells with different functions?
Please help this is due today and I really need help.
Answer:
Humans are multicellular, complex organisms. The cells inside our bodies are “specialized.” This means that each type of cell performs a unique and special function. For this reason, each of the 200 different types of cells in the body has a different structure, size, shape, and function, and contains different organelles.
For example:
Cells in the brain may be longer in shape so they can transmit signals more efficiently.
Cells of the heart have more mitochondria because they need a lot of energy.
Cells in the respiratory system are responsible for taking up oxygen and releasing carbon dioxide.
All the cells work together to keep the human body running efficiently.
Name the change of state for liquid to solid
Answer:
It’s called freezing
Explanation:
Answer:
solidification
