what statement is true about fossils
Answer:
where are the statements?
Ok so you commented the Statements
So, The correct one is
a. fossils can tell us what animals looked like millions of years ago
Which event triggers the start of black hole formation?
Answer:
A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight. The collapse triggers a supernova explosion that blows off the star's outer layers.
Explanation:
Answer:
1. The universe's galaxies have evolved since what point in time?
2. Which proportion of the universe's galaxies can be seen from Earth?
3. Which was used to create the first image of a black hole?
4. Which of these describes a nebula?
5. Why are most stars not destroyed in a galaxy collision?
6. What do supernova remnant and planetary nebulae have in common? Select the three correct answers.
7. Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.
8. Select the correct answers from the list.
The model of galaxy formation in which sections of gas clouds collapse into small pieces which repeatedly combine into larger pieces under the influence of gravity is called the ____ model or the ____ model.
9. Drag and drop the words into the correct locations. Answers may be used once, more than once, or not at all.
Galaxies can be grouped by the age of the stars they tend to contain, with ____ galaxies having the youngest stars and ____ galaxies having the oldest stars.
10. Which event triggers the start of black hole formation?
Explanation:
1. 13.8 billion years ago, right after the universe first formed
2. far less than 1 percent
3. radio waves from matter at the edge of the black hole
4. cloud of gas and dust
5. Galaxies are mostly empty space.
6. They emit non-visible radiation.
They are composed of matter from dying stars.
They contribute matter to interstellar space.
7. CMB is uniformly distributed and of a uniform temperature across the universe.
CMB is remnant radiation from the Big Bang.
8. inside-out / bottom-up
9. irregular / elliptical
10. A massive star depletes its stores of hydrogen and helium
what important role does the magnetic field play for our planet ?
Earth's magnetic field serves to deflect most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation. One stripping mechanism is for gas to be caught in bubbles of magnetic field, which are ripped off by solar winds.
Black-footed ferrets are native to the Great Plains. They spend most of their
time underground in prairie dog burrows. Which factor would increase an
area's carrying capacity for black-footed ferrets?
A. Increased competition for space
B. Increased number of diseases
C. Increased number of predators
D. Increased availability of food
Answer:
D. Increased availability of food
Explanation:
Trust
The factor that would increase an area's carrying capacity for black-footed ferrets is the increased availability of food. The correct option is D.
What is carrying capacity?Carrying capacity is defined as the average population size of a species in a given habitat.
Environmental factors such as adequate food, shelter, water, and mates limit the species population size. If these requirements are not met, the population will decline until the resources recover.
If there is more food available in an area, more black-footed ferrets can survive and reproduce, increasing the species' carrying capacity.
Increased competition for space, more diseases, and more predators would all reduce the carrying capacity of black-footed ferrets by reducing the number of individuals that could survive and reproduce in the area.
Thus, the correct option is D.
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is the asexual reproduction method conducted by starfish in which new organisms can grow from its sections
Multiple fission
Fragmentation
O Budding
Binary fission
Answer:
its regeneration /fragmentation
Explanation:
regeneration is a process of a sexual reproduction in which organism is divided into different parts each part regenerate the mist part and new organisms are formed.
Which event is most likely to lead to a heat wave?
A. A high-pressure system lingering over an area
B. A warm, moist air mass moving over a cooler air mass
C. An extremely low-pressure system moving into an area
D. A high-pressure system colliding with a low-pressure system
SUBMIT
Answer:
The correct answer is - A. A high-pressure system lingering over an area.
Explanation:
A heatwave is a period of hot weather that is not normal in the region that can last for two or more days. Heatwaves only take place in case of a temperature increase above the average for a particular area in history.
When air trapped in a particular area due to a high-pressure system. The trapped are leads to an increase in the temperature due to sunlight which leads to the heatwave.
Calculate: Punnett squares can be used to predict probable outcomes of genetic crosses. To calculate probability, divide the number of one kind of possible outcome by the total number of all possible outcomes. For example, if you toss a coin, the chance it will land on heads is equal to 1 ÷ 2. This probability can be expressed as ½, 0.5, or 50%.
How many total possible outcomes are there?
---------------------------------------------------------------------------------
Complete the table below to show the number of outcomes and the probabilities in both fractions and percentages.
I I
Number of Outcomes I Fraction I Percentage
--------------------------------------------------------------------------------------
FR FR
--------------------------------------------------------------------------------------
FW FW
--------------------------------------------------------------------------------------
FR FW
--------------------------------------------------------------------------------------
explain how one of the earth’s natural processes is responsible for creating a natural resource.
Answer:
Natural processes are interactions among plants, animals, and the environment. These interactions, which include photosynthesis, pollination, decomposition, and others, help create and shape natural communities.
Explanation:
A natural resource is the winds, which are produced by the displacement of atmospheric air.
How are natural resources formed?Examples of renewable natural resources:
SunlightPlantsWindRenewable natural resources are those that are renewed in nature, existing in abundance. Typically, these resources do not run out easily due to the renewal time and their ease of renewal.
With this information, we can conclude that there are several types of natural resources, with different forms of formation.
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Recall Characteristics of Cells WARM-UP Choose the statements below that are true. Cells are the smallest unit of life. Cells are important to the structure and function of living things. All organisms are made of multiple cells. Cells come in different shapes and sizes. RETRY
Answer:
1.Cells are smallest unit of life.
2.Cells are important to the structure and function of living beings.
3.All organisms are made up of multiple cells.
Plz do 10 and 14❤️❤️❤️❤️ Urgently
Answer:
lol
Explanation:
Answer:
lol i cant see it
Explanation:
5. What is Virus ? Explain.
वाइरस क्या है ? समझाइए।
Answer:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism.
The oxidation of a chemical occurs when
It loses electrons
It gains electrons
It shares electrons
All the above
Answer:
Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases.
Explanation:
oxidation is loss of electrons
here a trick to remember this
oil rig -> oxidation is loss. reduction is gain
What is the instrument use to measure heat
What is the instrument use to measure heat?
The instrument that is used to measure heat is [tex]\sf\purple{thermometer}[/tex].[tex]\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35}}}}}[/tex]
Evolution is best defined as
A. the changing of a population to simpler forms over time
B. process by which a population of organisms who are best adapted change over time
C. different populations adapting to the same environment
Answer:
B
Explanation:
process by which a population of organisms who are best adapted change over time is the answer
please help, im in a really bad place rn and nobody ever helps. im about to fail the grade :( A train travels at a speed of 47mph and travels a distance of 323 miles. How long did it take the train to complete its journey
speed = distance ÷ time
we need time
time = distance ÷ speed
time = 323 ÷ 47
time = 6.8 hrs or 6hrs and 48 minutes
I really need help on this one.
One example of an effector involved in regulating increased body temperature in a
person is the smooth muscle in peripheral blood vessels.
b. Explain how this effector brings about a decrease in body temperature.
Answer:
hh
Explanation:
ne example of an effector involved in regulating increased body temperature in a
person is the smooth muscle in peripheral blood vessels.
Shondra takes notes in class.
Three entries in Shondra's notes are not in the right
place. What can Shondra do to correct her notes?
1. Energy
A Definition - the energy of moving objects
B. Main categories of energy
1. Kinetic - the ability to do work
2 Potential - the energy stored in objects
3. Chemical -- the energy in chemical bonds
C. Forms of energy
1. Gravitational - the energy of a rock on a hill
2 Elastic - the energy in a spring
3. Nuclear - the energy in the nuclei of atoms
4. Electromagnetic wave - the energy from the Sun
5. Electrical - the energy of flowing electrical charges
O Switch "the energy of moving objects" and "the
ability to do work" and place chemical energy under
"Forms of energy."
O Switch "the energy of flowing electrical charges" and
"the energy in a spring" and place kinetic energy
under "Forms of energy."
O Switch "the energy in the nuclei of atoms" and "the
energy stored in objects" and place nuclear energy
under "Main categories of energy."
O Switch "the energy from the Sun" and "the energy of
a rock on a hill" and place electrical energy under
"Main categories of energy."
Mark this and return
Save and Exit
Next
Submit
Answer:
I beileve its A because energy is what gives the ability to do work
Explanation:
Answer:
A
Explanation:
please have a great day.
adaptations of the benthic invertebrates
HELP PLS ASAP
2. Complete the following chart about the three main research projects
that led to the identification of DNA as the genetic material.
RESEARCHERS' NAMES
SUMMARY OF RESEARCH
SUMMARY OF CONCLUSIONS
Griffith
found a "transforming principle"
Avery
Hershey and Chase
identified the substance that phages inject
into bacteria
Answer:
Griffith's experiment, reported in 1928 by Frederick Griffith, was the first experiment suggesting that bacteria are capable of transferring genetic information through a process known as transformation. Griffith's findings were followed by research in the late 1930s and early 40s that isolated DNA as the material that communicated this genetic information.
Griffith's experiment discovering the "transforming principle" in pneumococcus bacteria.
Pneumonia was a serious cause of death in the wake of the post-WWI Spanish influenza pandemic, and Griffith was studying the possibility of creating a vaccine. Griffith used two strains of pneumococcus (Streptococcus pneumoniae) bacteria which infect mice – a type III-S (smooth) which was virulent, and a type II-R (rough) strain which was nonvirulent. The III-S strain synthesized a polysaccharide capsule that protected itself from the host's immune system, resulting in the death of the host, while the II-R strain did not have that protective capsule and was defeated by the host's immune system. A German bacteriologist, Fred Neufeld, had discovered the three pneumococcal types (Types I, II, and III) and discovered the quellung reaction to identify them in vitro. Until Griffith's experiment, bacteriologists believed that the types were fixed and unchangeable, from one generation to another.
In this experiment, bacteria from the III-S strain were killed by heat, and their remains were added to II-R strain bacteria. While neither alone harmed the mice, the combination was able to kill its host. Griffith was also able to isolate both live II-R and live III-S strains of pneumococcus from the blood of these dead mice. Griffith concluded that the type II-R had been "transformed" into the lethal III-S strain by a "transforming principle" that was somehow part of the dead III-S strain bacteria.
Completing the attached chart about the three main research projects ;
Griffith summary of research : Identified what R-strain bacteria took up from heat-killed S bacteria,Avery summary of research : Identified protein as not the transforming factorAvery summary of conclusion : Found a " transforming principle "Hershey and chase summary of conclusions : Found the " Infection and replication principle "All three researches were carried out to discover the genetic material ( DNA ) which is responsible for the transfer of genetic traits from parent cells to daughter cells.
Griffith research shows that bacterias can get there DNA ( genetic material ) through a process known as transformation and the experiment to prove this research was carried out by killing S bacterias through heat and then adding them to R-strain bacteria. Griffith observed and concluded that the Genetic materials of the S bacteria was taken up by the S -bacterias through a process known as " transforming principle "
During Avery research for the genetic material ( DNA ) Avery treated a mixture with DNA-destroying enzymes to see if the colonies of the mixture will transform but they failed to transform which proves that proteins are not the transforming factors and that DNA is the genetic material.
Hence we can conclude that Completing the attached chart about the three main research projects is as written above.
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Which of the following astronomical bodies or collection of astronomical bodies is likely to be a part of the others listed?
Milky Way
Solar system
Sun
Universe
Answer:
Sun
Explanation:
Sun is the only star in our solar system, and planets orbit around it. Our solar system is the part of Milky way (located in one of the outer bands of the Milky way), and the Milky way is the part of the Universe (Universe is made up of billions of galaxies, and Milky way is one of those galaxies). Hence, in the given options, the Sun is the part of all of the other options given.
Answer:
Sun
Explanation:
:)
Which takes place inside the chloroplast?
A. dark reaction only
B. light reaction and cellular respiration
C. light and dark reactions
D. light reaction only
Answer:
dark and light reaction both is the right answerrrerreer
Answer:
C
Explanation:
The light reaction takes place in the thylakoid discs. Inside, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH. The dark reaction occurs outside of the thylakoids. In this reaction, the energy from ATP and NADPH are used to fix carbon dioxide (CO2). The products of this reaction are sugar molecules and other organic molecules necessary for cell function and metabolism.
*Note the dark reaction takes place in the stroma (aqueous fluid surrounding the stacks of thylakoids) and the cytoplasm.
Which of the following is a disadvantage of geothermal energy?
A. It is a nonrenewable resource.
B. Collecting it damages the environment.
C. It produces greenhouse gases.
D. It is available near the Earth's surface in relatively few areas.
Answer: D
Explanation: it is “location specific” and is found near the earths crust in few areas
The disadvantage of geothermal energy is that it is available near the Earth's surface in relatively few areas.
What is geothermal energy?'Geo' means Earth and 'thermal' means heat."It is a type of renewable energy (present in the form of heat) taken from the Earth's core."The energy that are inexhaustible or get renewed at very fast pace is called renewable energy.The heat that remains in the interior part of Earth since the time of its formation and radioactive decay of materials is used to generate electricity.It does not damages the environment.It does not emit greenhouse gases. That's why it does not cause climate change.It is available near the Earth's surface and it is location specific i.e., it is located in relatively few areas.Hence, the correct option is: D. It is available near the Earth's surface in relatively few areas.
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The polymer of proteins is called a
polysaccharide
amino acid
nucleic acid
polypeptide
Answer:
The answer is polypeptide.
which of the following factors is not related to anoxygenic photosynthesis?
a)sunlight b) co2
c)bacteriochlorophyll d) release of o2
Answer:
The answer should be: d) release of o2
suppose a particular in an area eats rabbits. if hunters kill off all of the those predators, the rabbit population will increase, resulting in more______ among the rabbits for food and space?
A. competition
B. extinction
C. symbiosis
D. cooperation
A. competition
mark me brainliest pls :))
The picture shows a carafe of olive oil.
What is one of the primary functions of this food in the body?
a.) building proteins
b.) storing energy
c.) providing structure to cell walls
d.) carrying genetic information
Answer:
it builds protein and stores energy
Required
Which of the following is true of the Carbon Cycle *
5 points
New Carbon is created
Old Carbon is destroyed
The same Carbon moves from one sphere to another throughout time.
Carbon stays in the same place until humans move it or use it.
Answer:
it will be third no. that is The same carbon moves from one sphere to another throughout the same time
One of the 7th graders in our school believes that absolute zero is possible on very cold days when it is snowing outside. Is he correct?
Answer: It depends on where u live it can go to the negatives and could be at 0 at some point
Explanation:
What part of he wave is labeled with an A.
Trough
Crest
Amplitude
Wavelength
Neuvon Time to Recieve
Hand free phone
making a call tim (27 min)
Answer:
Okay... Ig
Explanation:
