Biology Primary school
Which of the following statements about the sun is true?
Choice C is true.
The sun rotates on its axis at a predictable rate.
The Sun's nearest neighbor is Barnard's Star, and the Alpha Centauri system is about 4.3 light-years away. The sun is composed mainly of hydrogen (about 70%) and helium (about 28%). The outer layer of the sun is not the densest, but the inner layer of the core is.
C. The sun rotates on its axis at a predictable rate is the true statement, the rest are false statements.
What are the microscopic structures that proteins form in bacteria?
Ribosomes bind protein.
Which of these production methods is the only one available for mosses and ferns? 1. Sperm
I think it's the 2nd spore
It should be 2, all plants have spores. (:
Using the rock cycle, explain why sedimentary rocks will never be the only rock form on Earth
Answer: Because stones are constantly changing.
Explanation: The rock cycle can transform igneous rocks into sedimentary or metamorphic rocks.
Sedimentary rocks can change into metamorphic rocks or into igneous rocks.
Even metamorphic rocks can be turned into igneous or sedimentary rocks.
Therefore, sedimentary rock will never exist in its original form, but will be constantly changing.
With each volcanic eruption, the magma cools and turns into igneous rock. Metamorphic rocks form underground as a result of heat, pressure and time. The production of these rocks will always continue, unless some extreme event causes all volcanoes to go dormant forever and the earth's crust disappears. Hahaha
If an atom had a nucleus 1 foot in diameter, what would be the diameter of the atom in miles?
Your answer to your question is 4.73 miles
WHAT FACTORS ARE LIGHT, TEMPERATURE AND SOIL COMPOSITION? A. ecological
C would be your answer because it is an inanimate thing. It is not a living chemical or physical agent in the environment. I hope this helped!
In ecology and biology, abiotic components are inanimate chemical and physical substances.
Which macaw reptiles will become dominant, I need an answer as soon as possible
Mesozoic era dominated by plants and dinosaurs
What do you call an ecosystem that consists of all biotic and abiotic factors? an ecosystem
Ecosystem I would say.
Definitely A: Ecosystems
There are two measurement systems. In the United States, we tend to use the imperial system (pounds, inches, etc.) in everyday life. In other countries and in the scientific community, we use a different system. This system is called the _____ system.
I believe it is the metric system.
What kind of limbs (jointed, non-jointed, or absent) do cnidarians have?
Joinedi I think I'm not really sure about that
The cells in our bodies are actually very similar to single-celled organisms. They need food for energy, communicate with the cells around them and create waste. However, there are also big differences. There is a difference
A) Only the cells of our body contain organelles.
B) only unicellular organisms contain organelles.
C) Cells in our body cannot survive on their own, whereas unicellular organism can.
D) Cells in our body can survive on their own, whereas unicellular organism cannot.
Only the cells of our body contain organelles. Organelles are the small organs that perform complex functions in an organism. Unicellular organisms find it much easier to do this, so they don't have organelles
In short, your answer would be option A
Hope it helps!
A) how vital organelles are missing in protozoa...such as mitochondria, golgi bodies...these are only present in eukaryotes!
Because death by predators is death by starvation
It's just lol
I mean, you don't want to starve because then you'll die more, but if you die from a predator, you'll die faster
Because not only do you die slowly, but faster when you get eaten.
All living things are made up of cells. What is the difference between unicellular algae and the other two organisms? A) It lives in water.
B) It is less complicated.
C) It does not need food.
D) It does not reproduce.
B is less complex
The proportion of carbon dioxide varies slightly from day to day and from place to place
"As carbon dioxide rises, more water vapor returns to the... Wet peatlands provide a viable storage site for the greenhouse gas carbon dioxide, but... Even if the day comes when the world stops emitting entirely ... Of course, websites that promote climate change have not been sufficiently mentioned.
Hope it helps!
What type of skeleton (ENoskeleton, EXoskeleton, or neither) do cnidarians have?
They have no skeletons at all.
What functions do the organs of the urinary system perform?
1) eliminate waste
2) regulation of blood pH
3) regulation of water balance
hope it helped :)
Organs—kidneys, ureters, bladder, urethra, sphincters, and nerves—filter waste from the bloodstream and remove waste from the body. Your kidneys circulate blood and separate waste products so they can be excreted.
Type of limbs (articulated, non-articulated or absent) that have sponges
I think it's missing
I think the answer is "Far". They have no joints.
What type of skeleton (ENoskeleton, EXoskeleton, or neither) do sponges have?
I don't think it's anything, but I'm not sure
Type of limbs (articulated, non-articulated or absent) that have sponges
Sponges do not have processes because they are not segmented.
The moment is determined by: A. Velocity and weight
B. speed and size
C. Mass and velocity
D. Height and Weight
Time is determined by:
C: mass and velocity
I hope this helped! :) :)
Is cell division the only reproductive function?
No, there are three types: 1) the reproduction of an entire unicellular organism, 2) the growth and repair of tissues in multicellular animals, and 3) the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.
The vertical travel of an intake or exhaust valve is referred to as the duration A. B. Overlap. C. Elevator. D opening. Read the section. (1) Last spring, some friends and I started a fantasy baseball league. (2) Since the league was my idea, my friends made me a commissioner. (3) It took much longer than I expected. (4) I perform my duties as commissioner and train my staff. (5) I really enjoyed it though. What is a sentence fragment? Set 5 Set 2 Set 3 Set 4 How do you divide 32 evenly by 3 using a number line? If AB is 300%, how long is a line segment that is 100%? What was the impact of the invention of the cotton gin in the United States in the first half of the 19th century? Jane struggles to decide whether to invest her savings in the Secret Coast or the Four Rivers Coast. Mystic offers a 12% commission charged quarterly and four rivers offers a 14% fee charged semi-annually. Jane has invested 40,000 shares and expects a payback in five years. What is the best offer? I just need help simplifying: 4(x+3) + 5 Solve the system of linear equations by eliminating x - y = 4 x + y = 2 HELP POINTS!!!!!! If you owe money to another creditor, you are _____. A) Debtor B) Creditor C) Creditor D) Creditor What are the microscopic structures that proteins form in bacteria? Which two types of devices combine the functions of tablets? In what time period did humans first appear? Wind is the ____________ (strongest/weakest) agent of erosion Read the following article carefully and answer the following question. On the morning of July 15, 2006, fourteen school buses were destroyed. The buses, owned by Walt Whitman Middle School, were parked in the "bus barn" on campus. Vandals painted the buses with pictures of dogs. Dogs are the mascot of the competitive Edgar Allan Poe Academy. This has led some to believe that some EAPA students may be responsible for the incident. The mother of a Walt Whitman student says, “Oh, yes, the boys at the [Edgar Allan] Poe [Academy] are certainly to blame. These kids have no discipline and they're still thinking about losing the football game last week." However, police say there are no suspects at this time. Which of the following statements best describes the purpose of this article? convince the audience that the bus vandalism had a negative impact on the community, inform the audience about the events of the morning of July 15th, entertain the audience with a touching story about the bus vandalism scandal, inform the audience about the rivalry between Whitman and Poe's to inform the students and warn them of the possible consequences of this rivalry in order to convince the public that the students of Poe Academy are responsible for the incident What exactly describes the concept of judicial review? A. The Supreme Court can override executive branch vetoes. B. Congress Can Overrule Supreme Court Decisions. C. The President may dismiss judges of the Supreme Court. D. The Supreme Court can declare laws unconstitutional Organs that work together to bring air in and out of the body make up the _________________________________. What abuses against women were there in the Victorian era? What term is used to describe the interest rate the central bank charges when it lends to commercial banks? Which of the following were reasons for collective bargaining? Guaranteed wages, b working conditions, c job security, all of the above It takes 20 minutes to type and spell check 14 pages. Find out how many pages he can type in 5.5 hours and check his spelling. Answers will be rounded to the nearest tenth where appropriate. Please help!
What statement about the Sun is true? ›
The Sun is the source of almost all energy on Earth. In fact, the Sun is the main source of heat and light for all the planets in the Solar-system.What would the Sun look like from Alpha Centauri? ›
The sky from Alpha Centauri AB would appear much as it does from the Earth, except that Centaurus would be missing its brightest star. The Sun would appear as a white star of apparent magnitude +0.5, roughly the same as the average brightness of Betelgeuse from Earth.Does the Sun rotate about its axis at a predictable rate? ›
Since the Sun is not solid, different parts rotate at different rates. At the equator, the Sun spins around once about every 25 Earth days, but at its poles, the Sun rotates once on its axis every 36 Earth days.Is the Sun rotating around something? ›
Yes, the Sun - in fact, our whole solar system - orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make one complete orbit around the Milky Way!What is a fact about the Sun? ›
The sun lies at the heart of the solar system, where it is by far the largest object. It holds 99.8% of the solar system's mass and is roughly 109 times the diameter of the Earth — about one million Earths could fit inside the sun.Is the statement true or false the Sun is a star? ›
Yes. Sun is a star. Around the sun earth and other planets revolving.Is the star Alpha Centauri the star closest to the sun? ›
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.What does the sun look like from the nearest star? ›
From Proxima Centauri, the Sun would appear as a bright 0.4-magnitude star in the constellation Cassiopeia, similar to that of Achernar or Procyon from Earth.Is Alpha Centauri our closest star? ›
Proxima currently holds the title of the nearest star to Earth, although AB is a very close second. The Chandra data reveal that the prospects for life in terms of current X-ray bombardment are actually better around Alpha Cen A than for the Sun, and Alpha Cen B fares only slightly worse.Is it true that the Sun does not revolve or rotate? ›
The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.
Is it true that the Earth rotates on a tilted axis and revolves around the Sun? ›
The Earth rotates on its axis relative to the sun every 24.0 hours mean solar time, with an inclination of 23.45 degrees from the plane of its orbit around the sun.Does the Sun rotate and revolve at the same time? ›
Not only does the Sun revolve on its axis but, being a big ball of gas, it is fluid and consequently revolves at different speeds in different places. It takes 25.4 (Earth) days to rotate at its equator but an even more leisurely 35 (Earth) days to rotate near its poles.What causes the Sun to rotate? ›
The rotation of the Sun is due to conservation of angular moment. What this means is that the gas cloud from which the Sun formed had some residual angular momentum that was passed-on to the Sun when it formed, which gives the Sun the rotation that we observe today.What is called when you rotate around the Sun? ›
Earth's Revolution. In addition to rotating on its axis, the Earth also travels around the sun in a path called an orbit. The motion around the sun along its orbit is called a revolution. The amount of time it takes for a single trip around the sun is called a period of revolution.Which direction does the Sun rotate? ›
The sun's counterclockwise rotation and the counterclockwise rotation of the entire solar system (except two planets) is a result of its formation around 4.5 billion years ago.What are 3 good things about the Sun? ›
- Sunlight kills bacteria. Many of us spend a lot of time indoors. ...
- Sunlight may reduce high blood pressure. ...
- Sunlight can regulate the immune system. ...
- Sunlight strengthens bones. ...
- Sunlight can improve sleep quality. ...
- Sunlight boosts mood.
Compared with the billions of other stars in the universe, the sun is unremarkable. But for Earth and the other planets that revolve around it, the sun is a powerful center of attention. It holds the solar system together; provides life-giving light, heat, and energy to Earth; and generates space weather.What is so great about the Sun? ›
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.Is the sun is also a star? ›
The Sun Is Also a Star is a 2019 American teen drama film directed by Ry Russo-Young and written by Tracy Oliver, based on the young adult novel of the same name by Nicola Yoon.Do people know the Sun is a star? ›
Who discovered that the Sun was a star? Many people's work was needed to prove that the Sun is a star. The first person we know of to suggest that the Sun is a star up close (or, conversely, that stars are Suns far away) was Anaxagoras, around 450 BC.
What is the real star like our Sun? ›
Our Nearest Stellar Neighbors.
|Star Name||Distance (light years)||MoE|
|α Centauri A||4.37||±0.0068|
|α Centauri B||4.37||±0.0068|
The closest star to us is actually our very own Sun at 93,000,000 miles (150,000,000 km). The next closest star is Proxima Centauri. It lies at a distance of about 4.3 light-years or about 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers).Is 1 the Sun the star closest to the Earth? ›
- Sun is the nearest star to the earth.
- It is 150 million km (0.00001581 light-years) away from earth.
- Rigel is 864.3 light-years away from the earth and Betelgeuse is 642.5 light-years away from the earth.
At a distance of just over four light-years, the three members of Alpha Centauri, including Proxima Centauri, are the nearest stars to Earth.Is Sun the nearest star to the Sun True or false? ›
The simple answer is that the Sun is the closest star to Earth, about 93 million miles away. But that might not answer your question. Outside of our Sun, our system's nearest neighbor is Alpha Centauri. This isn't a single star, it's actually a triple-star system — three stars bound together by gravity.Is Sun the nearest star as seen on Earth True or false? ›
The Sun is a star. There are lots of stars in the universe, but the Sun is the closest one to Earth, and it's the only one in our solar system.What is the Sun the nearest star quizlet? ›
The nearest star to our sun is Proxima Centauri, at a distance of 4.3 light-years from the sun.What is Alpha Centauri also known as? ›
Alpha Centauri, also called Rigil Kentaurus, triple star system, the faintest component of which, Proxima Centauri, is the closest star to the Sun, about 4.2 light-years distant.How far is the nearest star system Alpha Centauri? › How is Alpha Centauri different from the Sun? ›
Rigil Kentaurus, also known as Alpha Centauri A, is a yellowish star, slightly more massive than the sun and about 1.5 times brighter. Toliman, or Alpha Centauri B, has an orangish hue; it's a bit less massive and half as bright as the sun.
Do all stars rotate on their axis? ›
Consider that fiery ball in the sky, the sun. Like all stars, our sun rotates on its axis.What does not revolve around the Sun? ›
But next time someone asks you for a crazy space fact you'll know: Jupiter is so massive, it doesn't orbit the sun.Who said sun is not rotating around Earth? ›
In 1543, Nicolaus Copernicus detailed his radical theory of the Universe in which the Earth, along with the other planets, rotated around the Sun. His theory took more than a century to become widely accepted.What if the Earth was tilted but did not revolve around the sun? ›
Basically, we would not have any seasons. Earth would be warm at the equator and cold at the poles. The poles would still experience the most impact because the sun would always be low on the horizon.Is every planet tilted on its axis as it orbits the sun? ›
All the planets in our Solar System do have such a tilt, with the exception of Mercury. Uranus for example has a 98 degree tilt, compared to Earth, which has a tilt of 23.5 degrees.Does the sun revolve around the planets True or false? ›
Sun is center of the solar system and planets revolve around it.How would you describe the Sun's rotation quizlet? ›
How does the sun rotate? It rotates faster on it equator then on higher latitudes. The type of rotation is differential rotation, it the rotation of a body in which different parts of the body have different periods of rotation.Does the Sun rotate to the right? ›
The Sun spins or rotates on its axis in the same direction as Earth (counterclockwise, when looking down from the north pole). Because it is a gas, it does not rotate like a solid.Is the statement true or false the Sun is the head of the solar family? ›
Answer: The solar system consists of the Sun, eight planets, satellites and other celestial bodies known as asteroids and meteoroids. We often call it a solar family, with the Sun as its head.Is it true that the Sun is the only source of light? ›
There would be no world if lights were not there, as light provides us with the ability to see things. Plants also need light which is provided by the Sun in the form of sunlight through which many processes in nature take place, so we can say that the main source of light on earth is sunlight.
Is this statement true or false the Sun heats the air in our atmosphere? ›
The Earth's atmosphere is heated in by the transfer of energy from the Sun. Earth receives its energy from the Sun. The Sun's energy travels to Earth in the form of radiation.Does the Sun give us heat and light True or false answer? ›
The main source of almost all the energy on the earth is the sun. In fact, for all the planets, the sun is the main source of heat and light.Which statement about the solar system is correct? ›
Detailed Solution. The statement "The sun, eight planets, satellites, Asteroids and Meteoroids form the solar system" is correct about solar system. The sun, eight planets, satellites and some other celestial bodies known as asteroids and meteoroids form the solar system.Is the head of the solar system answer? ›
We often call it a solar family, with the sun as its Head. The sun is in the centre of the solar system.Is the sun just above our head? ›
Answer: The sun shines above our head.Is the sun a source of energy True or false? ›
One of the most important sources of energy is the sun. The energy of the sun is the original source of most of the energy found on earth. We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar (photovoltaic) cells.Is sun the only source of energy in universe? ›
The sun is called the ultimate source of energy because it is the source of almost all energies of the earth. Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis.Is the sun cooling or heating? ›
There is another reason for the cooling, directly related to the sun's magnetic field, which shields the Earth from harmful cosmic and galactic rays. In the absence of the shielding more rays reaching the Earth and forming high clouds in the atmosphere, it is leading to the cooling, according to Zarkhova.Is the sun made of gases True or false? ›
The sun is made up of a blazing combination of gases. These gases are actually in the form of plasma. Plasma is a state of matter similar to gas, but with most of the particles ionized. This means the particles have an increased or reduced number of electrons.Is the sun a heat? ›
It gets as hot as 27 million degrees Fahrenheit in the sun's core. The energy travels outward through a large area called the convective zone. Then it travels onward to the photosphere, where it emits heat, charged particles, and light.
Is the sun an artificial source of light True or false? ›
The Sun is a natural source of light. On the other hand, a candle, an electric torch and a tubelight are artificial sources of light.Is the sun source of heat and light? ›
The sun, like all stars, contains mostly hydrogen. It produces energy from nuclear fusion reactions where Hydrogen is converted to Helium. This fusion reaction occurring inside the sun produces a lot of energy in the form of heat and light.Is the sun the biggest source of heat received by the Earth True or false? ›
The Sun is the biggest source of heat that is received by the earth. A large amount of heat is produced and generated due to the nuclear fusion that takes place at the core of the sun.