Answer:
He did not give a method on how the continents moved
Explanation:
In 1912, Alfred Wegener proposed the idea that the continents are slowly drifting around the Earth. This hypothesis was known as the continental drift. Wegener proposed that the Earth rotation might have been the cause for which the continents move to separate from each other. However, nowadays it is well-known that continents are landmasses localized on tectonic plates that move and interact with each other (and it is referred to as plate tectonics).
True or False: Diffusion requires energy input to occur.
Answer:
False
Explanation:
Diffusion does not require energy input from the cell. Diffusion transports water across the cell membrane.
Answer:
If you are talking about simple diffusion, the answer is false, but if you are talking about falicitated diffusion, the answer is True.
1. What is the density of an object that has a mass of 1,470 g and volume of 42 mL?
Answer:below
Explanation:
ρ = m/V=
1470 gram/42 milliliter
= 35 gram/milliliter
= 35000 kilogram/cubic meter
How does a catalyst work?
A. by increasing the temperature of a chemical reaction
B. by decreasing the pressure of a chemical reaction
C. by increasing the concentration of reactants in a reaction
D. by decreasing the activation energy of a reaction
Answer:
D. By decreasing the activation energy of a reaction
Explanation:
Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?
An astronomer would be able to focus on research alone.
An astronomer would not have to obtain a national security clearance.
An astronomer would apply expertise to improve satellite designs.
An astronomer can make more money working as a consultant.
Answer: An astronomer would apply expertise to improve satellite designs
The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.
Who is an astronaut?An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.
A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.
A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.
Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.
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During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?
A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I
Answer:
Metaphase I
Explanation:
Got it right on the test nun to worry about.
Which factor is most responsible for atmospheric convection?
Answer:
atmospheric pressure and winds (I’m pretty sure)
Which statement best describe the way thay an adesine phiphosphate molecule become an adenosi trphosphate molecule in the human body?
A. Protein cause phosphate molecule to bind to sugar and form ATP.
B. Food energy is used to attach a phosphate molecule to an ADP molecule.
C. Lonized Oxygen in cells causes sugars and phosphate molecule to form ATP.
D. Water breaks down ADP molecules which form into ATP molecules over time.
Answer:
B. Food energy is used to attach a phosphate molecule to an ADP molecule
Explanation:
Hope this helps!
Cell size and shape are important factors in determining the rate of diffusion. Think about cells with specialized functions, such as epithelial cells that line the small intestine or plant root hairs. What is the function of these cells? Sketch the shape of these cells. How does the shape of these cells relate to their function?
Answer:
Epithelial cells are the protective cells. They form the outer covering of the body surface which protects the body from any external danger.Cuboidal epithelial cells, as their name suggests, are shaped like cubes. These are typically found in tissues that secrete or absorb substances, such as in the kidneys and glands. Columnar epithelial cells are long and thin, like columns. These are usually found in places that secrete mucus such as the stomach.
What Best describes a difference between Prokaryotic cells and eukaryotic cells?
Answer:
Eukaryotic cells contain organelles that are enclosed in membranes. ... Prokaryotic cells contain a nucleus that is enclosed in a membrane
Please help. I’m kinda dumb
Answer:
why do you say that?
Explanation:
I can't see what it says even when i pull the piscture up.
Sorry :|
Have a great day/night and stay safe! :D :)
I'm not quite sure either, but from the instructions it appears that you should have some sort of "subject" and two of the subject's relatives. Then you just have to list if the subject and the two relatives show the traits. I believe that the subject is either you, since the course says "Your Genetic Traits"
I hope this helped a bit.
Which grouping has the least complex body plan?
Answer:
The correct answer to this question is "poriferia."
Explanation:
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Answer:
The correct answer to this question is "poriferia."
The common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
Explanation:the common example of this group of animal is the sponge. Sponges are the basalmost clade of animals of the phylum Porifera. Given that you were on a research expedition in the Kingdom of Tonga, a coral atolll in the South Pacific, you can be able to find these sponge.By definition, coral atoll is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely.
HELP PLEASE
Which of these chemicals is not a pollutant?
A. Methane
B. Nitrogen gas
C. Nitrate
D. Carbon dioxide
Answer:
All these chemicals are primary causes of pollution. Although, only one isn't an air pollutant. Which would make my best Guess C. Nitrate
Explanation:
A. Methane Is the main component in gas and oil. Oil companies have been responsible for polluting our air with about seven million tons of methane per year.
B. Nitrogen gas in general is one of the main air pollutions. otherwise know as Nitrogen dioxide.
C. Nitrates are found in ground waters and transfers into the soils surrounding said waters. Nitrates commonly are a cause of death in infants when drinking tab water or eating crops grown from nitrate infected soils. Adults aren't nearly as infected by this.
D. Carbon Dioxide is a greenhouse gas that pollutes our air and has been a main cause of global warming.
I'm at a loss for answering this question since all of these are polluting our earth in some way. The only way I can think to answer this is that all but one are air pollutants. So maybe the one that is not a air pollutant is the correct answer. My best guess is C. Nitrate
Hopes This Helps :)
PLEASE HELP URGENT
You want to survey members of your class to calculate the average amount of water they drink on a daily basis. Which of the following units would be most appropriate to use in your calculations?
A. microliters
B. micrograms
C. liters
D. kilograms
Answer:
I would say liters
Explanation:
Because D and B are units of weight and A is extremely small for the amoutn of water you drink.
P=
MULTIPLE CHOICE QUESTION
Pick all the correct answers
unsaturated fatty acids have the maximum
amount of hydrogens
unsaturated fatty acids have double bonds
saturated fatty acids have double bonds
Trans fats are the healthiest fats to eat
because they are the only ones found in
nature
saturated fatty acids have the maximum
amount of hydrogens
Trans fats are the worst fats to eat because
they are not found in nature
Answer: These are all of the correct answers
Unsaturated fatty acids have double bonds.Saturated fatty acids have the maximum amount of hydrogensTrans fats are the worst fats to eat because they are not found in nature.Explanation:
Suppose we completely stopped burning fossil fuels immediately. How many years would it take to return to atmospheric CO2 levels from the year 1800, about 600 GtC? Use the Gizmo to find the answer.
Answer:
Explanation:
It would take 50 years to return to atmospheric CO2 levels from the year 1800. I know this because I set the fossil fuel usage to 0 and proceeded to simulate 50 years and that’s when the atmospheric CO2 levels returned to 600 GtC.
As per observation It could take 50 years to go back to atmospheric CO2 degrees from the yr 1800.
Each year, there has been no extrade in the quantity of CO2 withinside the ecosystem because of soil and land plants. coal also can be the answer.
What is co2 quantity ?Since 2000, the worldwide atmospheric carbon dioxide quantity has grown with the aid of using 43.5ppm, an growth of 12 percent. The contemporary-day document of atmospheric carbon dioxide degrees commenced with observations recorded at Mauna Loa Observatory in Hawaii.
Thus it is well explained.
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Describe an approach for understanding global systems and the chages they undergo.
Answer:
I definitely agree with the person above seems like a legit well thought out awnser
PLS HELP FAST!!!! You have a natural-gas (methane, CH4) stove. When you ignite a natural-gas stove, the methane reacts with oxygen (O2) to produce carbon dioxide and water vapor. Write a balanced equation for this reaction, and be sure to show your work. (6 points)
Answer:
Methane (CH4) ( C H 4 ) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4+2O2→CO2+2H2O C H 4 + 2 O 2 → C O 2 + 2 H 2 O .
Explanation:
The balanced equation for the reaction of methane with oxygen is CH₄ + 2O₂→CO₂ + 2H₂O.
What is methane?Methane is a gas and a chemical compound with formula CH₄. It is a colorless and odorless gas and very flammable. It is made up of carbon and hydrogen. Methane comes under greenhouse gas.
As it is highly reactive, it reacts with the gases present in the environment. Here, methane is reacting with oxygen. When one molecule of methane reacts with two molecules of oxygen, it produces carbon dioxide and two molecules of water.
The reaction happens in the presence of heat and high temperature. The balanced reaction is written when the same number of moles are present on both sides of the reaction.
CH₄ + 2O₂ → CO₂ + 2H₂O.
Thus, the balanced equation for the reaction CH₄ + 2O₂→CO₂ + 2H₂O CH₄ + 2O₂ → CO₂ + 2H₂O.
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Which of the following best describes the product of DNA transcription
Its an RNA molecule I took the test in the 9th grade
What is the role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem
Answer:Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. ... Plants, algae, and many microorganisms use the energy from light, carbon dioxide from the atmosphere, and water to make sugars (food) through the process of photosynthesis, which also releases oxygen.
Explanation:
hope it helps :)
The role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem is the following:
The fundamental energy source of all ecosystems is the Sun, which sends a large amount of energy to Earth in the form of light and heat.
The various green plants use energy from the sun, water and nutrients from the soil, and carbon dioxide from the air to produce organic matter.
The process by which light is used as an energy source to transform CO2 into organic compounds essential for life is called photosynthesis.
The manufactured organic matter is used by the photosynthetic organisms themselves for the maintenance of their vital processes through cellular respiration.
Energy, once solar energy is transformed by producers into chemical energy by making organic matter in photosynthesis, is transmitted along with matter.
In each transfer of energy, between the different types of organisms there is a release of energy to the environment, in the form of heat.
On the contrary, matter flows cyclically, chemical elements are transferred between living beings and in the physical environment of each ecosystem.
Therefore, we can conclude that the role of photosynthesis in the cycling of matter and the flow of energy through the ecosystem is to produce the transformation not only of inorganic into organic matter, but also of light energy into chemical binding energy, oxygen is released as a waste product and is used by most organisms for cellular respiration.
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Compare the Viking 1 and 2 probes to the Pathfinder probe that landed on Mars in 1997. How was their technology different?
Answer:
Explanation:
In 1976, The Viking 1 and Viking 2 probes landed on Mars. For six years they transmitted fascinating panoramic views of the red and rocky soil of Mars back to Earth. Twenty years passed before a third probe landed on Mars. In 1997, the Pathfinder probe landed a miniature vehicle named Sojourner on the planet. The probes operated for three months and sent back large amounts of data on the Martian environment. At the same time, the Mars global surveyor probe was placed in orbit to take an overall portrait of the planet. It supplied hundreds of thousands of bits of information, especially on climatic variations.
Answer:
Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.
Which statement describes the electron sharing between two oxygen atoms?
Each oxygen shares one electron with the other.
Each oxygen shares two electrons with the other.
Each oxygen shares eight electrons with the other.
Each oxygen shares six electrons with the other.
When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons.
What is Electrons?A negatively charged subatomic particle known as an electron can either be free or attached to an atom (not bound). The nucleus of an atom is made up of electrons, protons, and neutrons together.
The positive charge of a proton balances the negative charge of an electron. An atom is in a neutral condition when it has the same number of protons and electrons.
There are several ways in which electrons differ from the other particles. They are substantially less massive, exist outside of the nucleus, and show both wave- and particle-like properties.
Therefore, When two oxygen atoms get close to each other, the attractions from the nucleus of both atoms attract the outer electrons.
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Explain how human activities may have led to species being threatened or endangered?
Answer:
Invaded their habitats and hunted them
Explanation:
The reaction has one reactant and at least and at least two products
What can be done to preserve the biodiversity of organisms?
Answer:
Here are several things you can do!↓
Explanation:
Government legislation.
Nature preserves.
Reducing invasive species.
Habitat restoration.
Captive breeding and seed banks.
Research.
Reduce climate change.
Purchase sustainable products.
Somebody help me plsss
Answer:
1. give up 1
2. give up 2
3. give up 3
4. gain 3
5. gain 2
6. gain 1
Mark me as brainliest if you found it helpful
_______ species are the first species to colonies disturbed or newly created environment
BRAINLIEST BRAINLIEST BRAIBLIEST PLEADE ANSWER DUSUSISISJJAIXNDJDD
Answer:
uh I am not really sure But I think it is HE
Explanation:
It appears the answer must be:
Hydrogenwhat blood types are not. possible for a child if one parent has type.A blood and the other type B?
A.Type B
B.Type A
C.Type O
d. all blood types are possible
What is technology?
Answer: the application of scientific knowledge for practical purposes, especially in industry.
Explanation: Have a blessed day hopefully this helped!
In addition to traditional coursework, most microbiology programs require which of the following?
O independent studies
O professional internship
O laboratory experience
O group projects
Answer:
laboratory experience
Explanation:
Got It right on test
The answer IS:
laboratory experience