Answers
Answer: 4
Explanation: When an object is red-shifted, it means the object is rapidly moving away from you. Distant galaxies are red-shifted because they are rapidly expanding outwards away from you.
Related Questions
the change in weather is what causes the change in seasons?
Answers
Answer:
no Seasons are dependent on the Earth's orbit around the sun
Explanation:
Please someone help me!!
Answers
each of these statements is a key characteristic of science, except: group of answer choices science focuses on explaining the natural world. science is based on the premise that things and events that happen in the natural world occur in consistent patterns that are comprehensible through careful systematic study. science is a process for producing knowledge which may be abandoned or modified in light of new evidence or reconceptualization of prior evidence and knowledge. scientists will never seek additional data once they confirm a hypothesis. both c and d.
Answers
Answer:
scientists will never seek additional data once they confirm a hypothesis
Explanation:
All the options are characteristics of science except the one that says that scientists will never seek additional data once they confirm a hypothesis.
That a hypothesis is confirmed does not mean that scientists are done and dusted with that phenomenon. One of the reasons the experiments that are used to test hypotheses are usually reproducible is to allow for continuous testing even after hypotheses have been confirmed. Continuous confirmation of hypotheses by many independent researchers turns the hypotheses into law and from there, theories can become laws when they are overwhemingly accepted worldwide and test against a wide range of phenomena.
Generally, science is a process of producing knowledge about the natural world. A previously held belief in science can be abandoned or modified once new evidence emerges
While pushing a wagon around the park steve applies a force of 100n along thd handlr which makes 32cangle with the ground if he pushes it 25 metree how much wrk dods he fo
Answers
Answer:
Workdone = 2120 Joules.
Explanation:
Given the following data;
Force applied = 100N
Angle = 32°
Distance = 25m
To find the workdone by Steve, we would first of all find the horizontal component of the force applied.
[tex] Horizontal force, Fx = mgCosd[/tex]
Where;
Fx represents the horizontal force.
m is the mass of an object.
g is the acceleration due to gravity.
d is the angle of inclination (theta).
mg = weight = 100N
Substituting into the equation, we have;
[tex] Fx = 100 * Cos32[/tex]
[tex] Fx = 100 * 0.8480[/tex]
Fx = 84.80N
Workdone is given by the formula;
[tex] Workdone = force * distance[/tex]
Substituting into the equation, we have;
[tex] Workdone = 84.80 * 25 [/tex]
Workdone = 2120 Joules.
Which of the following could describe the velocity of a rocket?
Answers
Answer:i don’t know
Explanation:i don’t know
Answer: 8,000 m/s
Explanation: m = meter , s = speed
MULTIPLE CHOICE
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
__6. Organisms that live in estuaries must adapt to changes in
a. temperature and precipitation,
b. sunlight and nutrients.
C. oxygen and pollutants.
d. water level and salinity.
7. Why doesn't photosynthesis occur in deep ocean water?
a. The water temperature is too cold.
b. There is no sunlight.
c. There are not enough nutrients.
d. The salinity level of the water is too high.
8. In estuaries, fresh water and salt water mix, forming a(n)
a. algal bloom.
C. coastal boundary.
b. habitat for shellfish.
d. nutrient trap.
9. Most of the nutrients in an arctic ecosystem come from
a. melting ice.
c. sunlight
b. the ocean.
d. lakes.
10. The majority of marine organisms are found in
a. deep ocean waters.
b. shallow, coastal waters.
c. hydrothermal vents.
d. salt marshes.
Answers
Answer:
6 is D
7 is C
8 is D
9 is C
10 is B
Explanation:
Following are the answers:
d. water level and salinity
b. There is no sunlight
C. coastal boundary
a. melting ice
b. shallow, coastal waters
What are estuaries?
An estuary is a body of water where a freshwater river or stream meets the ocean. The mixing of these two bodies of water creates a unique environment that supports a diverse range of plant and animal life. Estuaries are important for many different species of fish and shellfish, as well as for waterfowl and other migratory birds.
They also serve as important breeding and feeding grounds for many species. Human activities such as agriculture, urbanization, and pollution can have a negative impact on estuaries and the wildlife that depends on them.
Learn more about estuaries, here:
https://brainly.com/question/14681370
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Identify the muscle marked by the star (*): *
Your answer
Answers
Answer:
The infraspinatus
Explanation:
what is the function of Chlorophyll A?
Answers
Answer:
its function is to absorb light
answer this question fast
Answers
Answer:
Explanation:
There is no question to answer.
What are two advantages of displaying data in a chart?
407 QUESTIONS
It makes it easier to see and work with the data.
It makes it harder to make sense of the data.
It allows the data to be organized in meaningful ways.
It increases the number of words needed to describe the data
SUES
Answers
Answer:
A and B
Explanation:
Please help me on this
As one moves from left to right across the periodic table, what trend are evident?
A.) Atomic radius increases moving left to right
B.) Nonmetallic character increases moving left to right
C.) Electron affinity increases across the periodic table
D.) Elements change from solids to liquids and then gases.
E.) Most reactive elements on left and least reactive in n the right.
Answers
Answer:
C
Explanation:
Moving from left to right across a period, atoms become smaller as the forces of attraction become stronger. This causes the electron to move closer to the nucleus, thus increasing the electron affinity from left to right across a period. Electron affinity increases from left to right within a period.
Question 7
1 pts
Which of the following situations is an example of artificial selection?
O A farmer breeds cows, developing larger, more muscled calves
O A species of mouse develops lighter fur, reducing the likeliness that it will be seen by predators.
O A species of spider develops the ability to produce thousands of eggs, ensuring that some of its offspring
will survive.
O A species of anteaters develops narrower snouts, making it easier to eat ants in their anthills
Answers
Answer:
A
Explanation:
Because we people select cows for breeding for their traits of big muscles and producing lots of milk so us humans artificialy seselct these healthy cows for their traits
The correct answer is option A farmer breeds cows, developing larger, more muscled calves.
What are artificial and natural selection?Artificial selection is a measure taken by humans to identify desirable traits of plants and animals and to improve and maintain those traits in future generations.
Natural selection is natural selection, and artificial selection is human selection. The main difference between natural selection and artificial selection is that natural selection produces a large amount of biodiversity, whereas artificial selection produces the following types of organisms. B. Improved crops and livestock.
Learn more about the artificial selection here: https://brainly.com/question/14128683
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what sugars are easily used by our bodies?
Answers
i’m 99% sure
Answer:
Carbohydrates are the body's most important and readily available source of energy. They're a necessary part of a healthy diet for both kids and adults. The two main forms of carbs are: simple carbohydrates (or simple sugars): including fructose, glucose, and lactose, which also are found in nutritious whole fruits.
Explanation:
 When you consume food Consume food body converts Chemical Energy in The food to other forms of energy what is one way that this energy in your body can be transferred to another subsytem
Answers
Answer:
During cellular respiration, about 36 to 38 ATP molecules are produced for every glucose molecule. The structural formula for adenosine triphosphate. During cellular respiration, energy from the chemical bonds of the food you eat must be transferred to ATP
Explanation:
PLEASE HELP TIMED
The host is calculating how many grams of limestone will be washed away by 30 kg of sulfur. He first converted kilograms to grams. Then he multiplied by which of these?
A.
The reciprocal of the molar mass of sulfur
B.
The molar mass of sulfuric acid
C.
The reciprocal of the molar mass of limestone
Answers
Answer:
C.
The reciprocal of the molar mass of limestone
Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
Answers
Answer:
the correct answer would be - inheritance.
Explanation:
BRC1 is one of the genes that cause breast cancer which is thought to be inherited from the parents and even surgery can remove it from the person or it removed with the death of the person but genes already passed on next generation.
Surgery can not remove the gene but the tumor only and can reappear again. It is impossible to remove the complete gene from the population.
A fungus with white spores cross fertilizes a fungus with black spores. If 10% of the progeny bear white spores while 90% of the progeny bear black spores, what must be true?
A.
The trait for spore color is determined by exactly one gene.
B.
The trait for spore color is determined by more than one gene.
C.
The allele for black spores is dominant over that for white spores.
D.
The allele for white spores is dominant over that for black spores.
Answers
Answer:
C. The allele for black spores is dominant over that for white spores
Explanation:
Since there are more of an outcome of black spores it would make sense that this trait is dominant.
White spores seem to be recessive in this case too.
It is also suspected that the parents are both heterozygous. They both carry one trait for black and one for white.
true or false
please help!
science btw
Answers
In a tropical coastal swamp, students came across a mangrove forest with many roots that above the ground. Their teacher explains that they are specialized roots that stick up above the soil and absorb oxygen from the air when the the soil is covered by water. What is the name given to these roots?
A)
prop roots
B)
tabular roots
C)
haustorial roots
D)
pneumatophores
E)
contractile roots
Answers
Answer:
A. Prop roots
Explanation:
because you can look it up
Ants secrete pheromones, which can warn other ants of danger or announce which colony an ant belongs to.
Please select the best answer from the choices provided
T
F
Answers
True
Explanation:
I took the test for school
meaning of flucking?
Answers
The validity of scientific theories and laws depends on evidence. Which of the following statements of evidence supports a law rather than a theory?
Electrons orbit the nucleus of an atom within a certain radius.
DNA analysis reveals that a modern species is related to an extinct species.
Seafloor spreading occurs at a rate of three centimeters per year in the mid-Atlantic.
o The amount of matter in a closed system is the same at the start of a reaction as at the end of the reaction.
Answers
Answer:
d the amount of matter in a closed system is the same at the start of a reaction as at the end of the reaction
Answer:D
Explanation:the amount of matter in a closed system is the same at the start of a reaction as the end of the reaction
Why might both cells be considered equally successful
Answers
Explanation:
https://edu-answer.com/biology/question20838131#
What are the two main characteristics scientists use when classifying plants?
Answers
Answer:
color, shape, size, how they reproduce, and their flowers or seeds.
hope this helps!!:)
Explanation:
appendectomy equipment ?
Answers
Explanation:
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password :– 1234
Describe one way plants defend themselves against losing sap to insects like Mabel?
Answers
Answer:
Explanation:
The first line of defence in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. If the first line of defence is breached (the mechanical damage), the plant resorts to a different set of defense mechanisms, such as toxins and enzymes.
1. What must be true to have offspring with black fur?
2. What must be true to have offspring with white fur?
3. What must be true to have offspring with black eyes?
4. What must be true to have offspring with red eyes?
5. What must be true to have offspring with red eyes and white fur?
Answers
Answer: Genetics
Explanation: This may sound a little strange, but in order to have animals with certain traits, they must be born with or have in the blood line to have said traits. Even then the traits exhibited may not be hereditary. There is a 50% chance that the genetics that you want the offspring to have, may not occur. When a child is made, this means that the parents donate chromosomes from both sides to give the child some of their looks. This could mean disease, eye color, hair thickness.
Answer:
1) At least one dominant allele
2) Two recessive alleles
3) At least one dominant allele
4) Two recessive alleles
5) Pure recessive
Explanation:
teacher went through it with us so it’s right :)
How can genetic mutations increase the variation in a population over time?
Answers
Answer:
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.
Explanation:
What type of proteins speed up chemical reactions?
Answers
Present state and current conditions of the atmosphere.
air mass
Weather
Cloud cover
temperature
Answers
Answer:
weather
Explanation:
