Answer:
Procyon B and Proxima Centauri
Explanation:
Procyon B and Proxima Centauri are most similar in luminosity but Alpha Centauri and the Sun have most similar luminosity and temperature.
The primary star in the system, Procyon A, is a bright yellow-white star and one of the brightest stars in the night sky. The two stars that are most similar in luminosity are Procyon B and Proxima Centauri.
Procyon B is a white dwarf star that is part of the Procyon binary star system, located approximately 11.4 light-years away from Earth in the constellation Canis Minor.
Proxima Centauri is a red dwarf star and the closest known star to our solar system, located approximately 4.24 light-years away in the southern constellation of Centaurus. It is a part of the Alpha Centauri star system, which also includes the binary pair of stars, Alpha Centauri A and Alpha Centauri B.
To compare the luminosity of stars, astronomers often use a classification system called the Hertzsprung-Russell (H-R) diagram. This diagram plots stars based on their luminosity and temperature. Stars of similar luminosity can be found within the same region of the H-R diagram.
Therefore, the two stars that are most similar in luminosity are Procyon B and Proxima Centauri.
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Which statements represent convection? Select two options. Black asphalt gets very hot on a sunny day. The movement of air in a hot-air balloon makes it rise into the sky. A dark sand beach can burn the soles of your feet. A spoon gets warm from sitting in a soup pot. A house has high heating bills because the heat ends up in the attic. A house loses heat through an exterior wall.
Answer:
B. and E. are the correct answer because convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Explanation:
hope this helps
Convection is a heating transmission process. The options are B) The movement of air in a hot-air balloon makes it rise into the sky, and E) A house has high heating bills because the heat ends up in the attic.
What is convection?Convection is a natural process that results from heating transmission between two substances.
The change in temperature between these substances produces a change in density as well, and hence, the movement of the substances.
The cyclic circular ascending and descending motion of materials as they get heated or cooled is known as convective currents.
Among the options, the correct statements are,
B) The movement of air in a hot-air balloon makes it rise into the sky.
E) A house has high heating bills because the heat ends up in the attic.
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What can store more energy, Glucose or ATP? How much more?
Answer:
Let's take a closer look at a molecule of ATP. Although it carries less energy than glucose, its structure is more complex. The "A" in ATP refers to the majority of the molecule, adenosine, a combination of a nitrogenous base and a five-carbon sugar.
what is the name given to lichen or algae after a primary succession
Answer: the pioneer species
Explanation:
Answer:
The answer is pioneer species.
Explanation:
Match each form of energy with its definition. The energy of the bonds between atoms.
mechanical energy
Kintetic energy
Chemical energy
potential energy
2. How are the circulatory, respiratory and lymphatic systems related to each other? specific.
Which is an example of a decomposer?
Answer:
B. Bacteria
Explanation:
They break down cells of dead plants and animals into simpler substances, which become organic nutrients available to the ecosystem.
Answer:
Examples of decomposers are fungi and bacteria that obtain their nutrients from dead plant or animal material. They break down cells of dead plants and animals into simpler substances, which become organic nutrients available to the ecosystem.
Which is one physical property that all stars have?
Answer:
They all has gases in them also they all are bright
Explanation:
hopefully this helps
Answer: They are made of gases such as hydrogen and helium. They shine very brightly due to the interaction of hydrogen and helium at appropriate pressure and temperature. They contain iron in their cores which monitors the fusion reaction
Explanation:
Xavier and Jill are practicing the 100-meter sprint. Which statement BEST describes the metabolic pathways their muscles will utilize to produce the
quick energy needed for this intense exercise?
A Glucose is converted to pyruvic acid, followed by the aerobic pathways of the Krebs cycle and the electron transport chain.
B. Glycolysis produces pyruvic acid and 2 molecules of ATP, then in the absence of oxygen, alcoholic fermentation regenerates NAD to keep
glycolysis running
o
C. The pyruvic acid from glycolysis enters the mitochondria and is broken down in the Krebs cycle.
D. Glycolysis begins glucose metabolism, and in the absence of oxygen, lactic acid fermentation takes over.
Answer: D:Glycolysis begins glucose metabolism, and in the absence of oxygen, lactic acid fermentation takes over.
Explanation:
A certain type of frog reproduces sexually and has 36 pairs of chromosomes in each of its body cells. How many chromosomes are in each of the frog’s sex cells?
9
18
36
72
Answer:
36
Explanation:
on edge2020
Answer:
c-36
Explanation:
36 chromosomes are in each of the frog’s sex cells
What are some of the challenges with using solar energy?
Answer:
A chanllenge can be that it's very pricy
Answer:
Some problems using solar energy are that it may not be a very reliable source because if you have an emergency in te middle of the night and need t charge your solar charged flashlight, you can't because it's nighttime. Solar panels are also not the prettiest thing and huge amounts of them can still mae very little power. Solar panels are also very expensive to install. On top of that, some communities don't want you using solar panels due to the bulky and blinding look of them.
Explanation:
In the answer
What best explains the relationship between structure and function of the cell membrane?
Answer: The lipids and proteins that make up the membrane allow it to be selective about what enters and leaves the cell. The fluid inside the membrane buffers the chemical reactions taking place inside the cell.
Explanation:
describe how hormones work and explain why they are important?.
Give at least one example in your answer
6 marks
Answer:
Hormones are molecules produced by the endocrine system that send messages to various parts of the body. They help regulate your body's processes, like hunger, blood pressure, and sexual desire. While hormones are essential to reproduction, they are fundamental to all the systems of your body.
PLEASE HELP ME!!!
Help me by naming all the moon phases that are happening in each number.
Please, and Thank You!
Will Mark Brainliest!!!
Answer:
1. new moon
2. waxing crescent
3. first quarter
4. waxing gibbious
5. full moon
6. waning gibbious
7. third quarter
8. waning crescent
Four cats are sitting in a living room. Which cat has the greatest gravitational potential energy? (Lesson 3.10 Gravitational Potential Energy) O A 15 lb cat sitting 3 feet off the ground in a window O A 15 lb cat sitting 1 foot off the ground on a box O A 10 lb cat sitting 1 foot off the ground on a box O A 10 lb cat sitting 3 feet off the floor in a window
Answer
I believe it is "A 15 lb. cat sitting 3 feet of the ground in the window"
Explanation:
I think it is this one because it is one off the heaviest cats and it is this one because this 15 pound cat is higher than the other one. I hope you get an A
The cat that has the greatest gravitational potential energy is A. A 15 lb cat sitting 3 feet off the ground in a window.
Gravitational potential energy refers to the energy that is possessed by an object due to its position on the gravitational field.
Gravitational potential energy is also referred to as the potential energy that an object has in relation to a different object due to gravity. Therefore, the greatest gravitational potential energy will be the 15 lb cat sitting 3 feet off the ground in a window.
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Match each moon or planet to the most accurate characteristic
.A. Earth's moon
B. Venus
C. Europa
D. Mars
1. It contains large amounts of frozen water
2. The temperature of its atmosphere is increased by high levels of carbon dioxide
3. It doesn't have enough gravity to have an atmosphere
4. Astronomers believe there is a good chance it contains liquid water
Answer:
a to 3
b to 1
c to 4
d to 2
im sorry if some of these are wrong hope this helps a little bit :)
why do some root cell have root hair
Answer:
Root hairs form an important surface as they are needed to absorb most of the water and nutrients needed for the plant. They are also directly involved in the formation of root nodules in legume plants. ... Having a large surface area, the active uptake of water and minerals through root hairs is highly efficient.
Answer:
Explanation:
Root hairs appear when the epidermis differentiates. The epidermis has specialized cells that are root hair cells. Much attention has been given to root hairs because of their presumed importance as absorbing surfaces.
This Homework is due in 10min and I forgot about this lesson cause I don't have notes for it.
Answer:
C) regulate water loss
Explanation:
It causes the stomata to close which in turn decreases the amount of water lost.
Cellular Respiration and photosynthesis are related in that they are opposite of each other. The products of one process are the reactants of the other.
True
False
Answer:
This statement is true.
Explanation:
because during photosynthesis , oxygen is produced because of the reaction of carbon dioxide, and water in the presence of sunlight. oxygen and glucose are synthesized during photosynthesis while on the other hand, oxygen is used in respiration and carbon dioxide is produced which again used by plants.
Which of the following is NOT one of the zones in a lake?
a. littoral zone
C. open-water zone
b. surface zone
d. deep-water zone
Human red blood cells contain an important protein called?
Answer:
Explanation:
Red cells contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs so it can be exhaled. Blood appears red because of the large number of red blood cells, which get their color from the hemoglobin.
which macromolecule provides the blocks for recovery and repair in forming new muscle?
Answer:
It hast be protein
Explanation:
Answer:
Protein
Explanation:
Proteins provide strength,structure,and support for the body.
PLEASE HELP ME WITH THIS PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
A
Explanation:
Answer:
the answer is layer a simson girl daughter
Explanation:
What is one of the energy transformations that takes place during cellular respiration
energy to
energy
One of the energy transformations that take place during cellular respiration is the conversion of chemical energy in carbohydrates into usable cellular energy in the form of ATP.
During cellular respiration, the bonds holding carbohydrate molecules in foods together are broken down and the energy in the bonds is converted to usable energy by cells, in the form of ATP.
Cellular respiration takes place in a series of reactions, but the summary is represented in the equation below:
[tex]C6H12O6 + 6O2 ---> 6CO2 + 6H2O + energy[/tex]
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please help.
1. When does it finish boiling
2. When does the potential energy come
PICK A LETYERY
Answer:
1. F 2. F
Explanation:
im not sure about the second one tho but im definitly sure about the first one :)
What compound makes up
the channels that are
embedded in the cell
membrane?
on
otic
Answer:
phospholipids
Explanation:
The basic building blocks of a cell membrane are phospholipids. Phospholipids contain a hydrophobic (insoluble in water) end made up of two fatty acid chains of nonpolar molecules such as carbons and hydrogens.
Hopefully this is correct!
I’ll mark brainliest !
Please answer ALL the questions above !
Answer:
1. B
2. C
3. B
4. A
Explanation:
Hope this is right
what was the Louis Pasteur view regarding the origin of life
Answer:
Louis Pasteur effectively disproved the spontaneous generation concept by performing research that displayed exposure to fresh air was the trigger of the microbial growth.
Explanation:
These structures are found in the nucleus of dividing cells they appear x -shapped
Answer:
Because each duplicated chromosome consists of two identical sister chromatids joined at a point called the centromere, these structures now appear as X-shaped bodies when viewed under a microscope. Several DNA binding proteins catalyze the condensation process, including cohesin and condensin.
Explanation:
I don't get it,can someone help me?
Answer:
Out
Explanation:
If the mass is less that means there is less water on the inside of the cell and more water on the outside. also because there is less water outside the cell, due to the properties of osmosis, it would tracel out.
Explain the relationship between coral and algae, and how a problem with algae photosynthesis caused coral bleaching in the Great Barrier Reef.
How did water from the Great Barrier Reef affect ATP, NADPH, and sugars?
explain how you know that paraquat did not cause the coral bleaching.
Explain why you know that diuron caused the coral to bleach.
Answer:
mutualistic relationship.
paraquat is a herbicide.
Diuron is a algaecide.
Explanation:
mutualistic relationship is present between coral and algae. Paraquat did not cause the coral bleaching because paraquat is a herbicide which is used to kill weeds not algae. We know that coral have small algae attached to its body which is responsible for its colour so if we apply paraquat, it does not kill the algae and so coral bleaching did not occur. if we apply diuron which kills algae so it causes coral bleaching and the coral becomes white.