About how long ago did our solar system start to form?
O About 5 million years ago
O About 14 million years ago
O About 5 billion years ago
About 14 billion years ago
Answer:
about 5 billion years ago
Explanation:
Our solar system formed about 5 billion years a go from a dense cloud of interstellar gas and dust.
Our solar system started to form approximately 5 billion years ago. Option 3 is correct.
This estimation is based on scientific evidence and observations of the formation and age of celestial bodies in the universe. The formation of our solar system is believed to have been initiated by the gravitational collapse of a giant molecular cloud composed of gas and dust. As the cloud collapsed under its own gravity, it began to spin and flatten into a rotating disk-shaped structure known as the protoplanetary disk. The central region of this disk eventually formed the Sun, while the surrounding material coalesced to form planets, moons, asteroids, and comets.
The age of our solar system is determined through radiometric dating techniques, which involve measuring the ratios of radioactive isotopes in rocks and meteorites. These measurements, combined with other astronomical observations and models, provide a reliable estimate of the age of the solar system. The current scientific consensus is that the solar system formed approximately 4.6 billion years ago, placing its origin in the early stages of the universe's development. This understanding of the solar system's age is crucial for studying its evolution, understanding the formation of planets, and exploring the conditions necessary for the existence of life.
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which term best describes an enzyme
An enzyme is a biological catalyst that seeds up chemical reactions.
What is Enzyme?
A biological catalyst called an enzyme is usually always a protein. It accelerates a certain chemical reaction in the cell. The enzyme is continuously employed during the reaction and is not destroyed. Each enzyme molecule found in a cell is unique and tailored to a particular chemical reaction.
All biological activities in living things involve chemical reactions, and enzymes regulate the majority of them.
Many of these processes would not occur at a noticeable rate without enzymes. Every element of cell metabolism is catalyzed by enzymes.
Therefore, An enzyme is a biological catalyst that seeds up chemical reactions.
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Which statement is true? a. Earth’s revolution is circular. b. Earth’s revolution is elliptical. c. Earth’s distance from the Sun is constant. d. Earth’s average distance from the Sun is 2 astronomical units.
Answer:
B
Explanation:
The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other scientists have encouraged the preservation of global biodiversity through the protection and management of natural ecosystems. Preserving the biodiversity of the Earth is important because
Answer-:
Preserving the biodiversity of Earth is important because biodiversity increases the efficiency of ecosystems where every species, no matter how small, has an important role to play. A greater number of species of plants means a larger range of crops. Greater diversity of organisms guarantees ecological survival for all lifeforms
Explanation:
REASONS WHY PRESERVATION OF THE EARTH'S BIODIVERSITY IS IMPORTANT-
ECOSYSTEM PRODUCTIVITY - One of the key reasons we should continue to concentrate on biodiversity protection is that it helps to improve the efficiency of the ecosystem. Naturally, a properly working ecosystem would be more immune to extreme environmental factors, such as climate change.HEALTH DETECTIONS -The vast number of medical advances waiting to be made is one of the most significant reasons why we should continue working on saving biodiversity. To develop new cancer therapies and more, scientists use observations of plants , animals, and even microbes. As a matter of fact, all human drugs must first be tested before being tested on humans in laboratory animals. This is essential for determining their toxicity, dosing, as well as effectiveness. In some of the most remote sections of the planet, many of the animals used in these discoveries are also included. Recreation and Natural Beauty - The value of natural beauty is another great explanation why we should continue focusing on protecting biodiversity. There are several historical sites around the country that need to be preserved to maintain their status for future generations to enjoy, such as the redwood forest. These trees regularly have a lifespan of 600 years in the case of the redwoods. Some are as old as 2,000, too. Their growth is extremely sluggish, however. Wild and natural environments provide ways to get away from urban environments. In addition, people can enjoy outdoor activities such as bird watching, canoeing, hiking, and photography of nature. The Ecosystem 'Survival - With a few exceptions, to survive, each species on Earth relies on the services of other species. This partnership is part of the idea of what an ecosystem is. The relationship between soil, plants , and bacteria is a pertinent example. This is known as the period of nitrogen. Other examples which are important include -: Animal waste which nourishes the soil, Crops also produce straw, which is an animal food source, As natural nitrogen fixers, algae represent and Aerate the soil with rats.Economic Benefits -: Many advantages have been provided to humans through biodiversity, and many come in the form of products. These products are extracted and sold, and everything from crops to medicines is included.Hence, preservation of the biodiversity of Earth is important from all aspects of life.
Describe what happened when the Paramecium populations were mixed in the same test tube.
Answer:
When grown individually in the laboratory, they both thrive. But when they are placed together in the same test tube (habitat), P. aurelia outcompetes P. caudatum for food, leading to the latter's eventual extinction.
Explanation:
I hope you Understand the answer
Where within the cell does photosynthesis take place?
A. The cytoplasm
B. The chloroplasts
C. The mitochondria
D. The nucleus
Answer:
B.) The chloroplasts
Explanation:
I have science
Answer:
B
Explanation:
Gizmo
Many psychologists are suspicious of memories retrieved through hypnosis because:
endospores form during ____.
a) binary fission
b) respiration
c) sunlight hours
d) harsh environmental conditions
Answer:
A binary fission
Explanation:
Hope this helped
How many wilderness areas are there in the United States?
a.
25
b.
50
c.
120
d.
474
Answer:
474
Explanation:
took test
The Forest Service and three other federal land management agencies currently oversee 474 wilderness areas totaling more than 111.7 million acres as part of the National Wilderness Preservation System. Thus, option D is correct.
What importance of wilderness areas in an ecosystem?The risk of extinction is reduced by wilderness, with the risk being doubled for species found outside those places.
Additionally, a variety of species can be found in both wilderness and non-wilderness places, and their ability to survive depends heavily on the wilderness's undisturbed habitat.
The advantages of wilderness are many. There is so much more to wilderness than just a place to camp, trek, or fish.
Our water and air are purified by wilderness. It serves as both a habitat for wildlife and a source of income for nearby towns.
Therefore, 474 wilderness areas are there in the United States.
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When opposites of two genetic parents are fertilized.
A) Heredity
B) Hybrid
C) Cross
D) Purebred
Answer:
I think your answer is D.) Purebred If Not not ill say C.) Cross
Explanation:
Hope This Helps :)
Answer: Hybrid
Explanation: The Merriam Webster dictionary definition of hybrid is "an offspring of two animals or plants of different subspecies, breeds, varieties, species, or genera" so in theory the answer would only make sense if it was hybrid since none of the others apply to having genetically opposite parents
in a few sentences tell me what you know about cells.
Answer:
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function.
Explanation:
Cells are made up of energy, and are composed to the human body.
Put the Pond Succession in Order from the pioneer community to the climax community
Answer:
it goes in order bcad
Explanation:
bcad
Please help me with short note on Lamarckism.
Answer:
Explanation:
Lamarckism, or Lamarckian inheritance, also known as "Neo-Lamarckism", is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime.
plz mark as brainliest
Photosynthesis occurs in which organisms?
Answer:
Photosynthesis occurs in green plants, seaweeds, algae, and certain bacteria. These organisms are veritable sugar factories, producing millions of new glucose molecules per second
Explanation:
Warm tropical water will tend to have a higher concentration of....
a, dissolved oxygen
b, zooplankton
c, Photic zone
d, salt
Answer:
Um B I hope my answer is right!!
Explanation:
Complete the following analogy.
Nucleus is to cell as _____ is to company.
President
Security Guard
Secretary
Answer: secretary its right
Explanation:
Answer:
secretary
Explanation:
i do oddysseyware
Why do the plant and animal cells SHARE some levels of classification?
Why are some levels of classification DIFFERENT?
Answer:
Evolution and adaptation
Explanation:
I would say that the first reason for animal and plant cell to be alike in some ways is for the main reason of us being derived from the same original source but the difference between the cells comes with the organisms adaptation to the different environments. hope that helps!
Which of the following best describes how amino acids affect the tertiary structure of a protein
Answer:
B. The interactions of the different R group with other R groups and with their environment determine the tertiary structure of the protein
Explanation:
Protein is one of the four major biomolecules in living systems. Structurally, proteins consists of four levels namely: primary, secondary, tertiary and quartenary. The primary structure constitutes the AMINO ACIDS monomer that makes up the protein.
According to this question, the tertiary structure of the protein is formed as a result of the interaction of different R groups with one another and their environment. The R group is one of the four parts of the amino acid structure which is different for all amino acids.
These R groups interact in such a way that forms different bonds such as hydrogen bonds, disulphide bridges, hydrophobic & hydrophilic interactions etc, which leads to the tertiary structure of proteins (three-dimensional shape).
Answer:
B. The interactions of the different R -groups with other R -groups and with their environment determine the tertiary structure of the protein.
Explanation:
What is a magliant tumor?
Answer:
a mass of cancer cells
Explanation:
u have the right answer
Answer:
a mass of cancer cells.
If a person did not eat for several days, which sequence of events would occur? Glycogen stores would be depleted first, then structural proteins, and then stored lipids. Lipid stores would be depleted first, then stored glycogen, and then structural proteins. Proteins stores would be depleted first, then stored lipids, and then stored glycogen. Glycogen stores would be depleted first, then stored lipids, and then structural proteins.
Answer:
The correct answer is "Glycogen stores would be depleted first, then stored lipids, and then structural proteins."
Explanation:
When an individual starts starving, the glycogen store is depleted first because that is the storage form of glucose. After depletion of the glycogen, the body then burns fat reserves in the body which are also good sources of calories. After prolonged period of starvation, the body then converts structural proteins (usually in the form of glucogenic amino acids) into fuels for energy.
It should be noted that NOT all the glycogen are used up immediately because the brain cells and the red blood cells prefer energy from glucose and hence the body reserves some glycogen strictly for them.
Answer:
its d on edge2021
Explanation:
what are 5 factors needed to support life(actually list the please)
(Need help) If you Were a Scienctist,describe the information about parts of the universe that could be collected using electromagnetic waves
electric bells .... maybe I am not sure
Which of the following would be considered matter? Choose
all that apply.
A. light from the sun
B. milk in a carton
C. heat from a candle
D. sound of booming thunder
E. pebble on a beach
**for science
Answer:
B) milk in a carton and E) pebble on a beach. This is you answer
Explanation:
refer to the figure below to answer the following question. layer j is ____layer n
Answer:
I think it's younger than, not entirely sure though.
PLEASE HELP!!
Why is it important to revise models?
What would happen if models were NEVER revised?
Answer:
It's an important part of the writing process. Revising gives students an opportunity to reflect on what they've written. Revision is closely tied to critical reading; in order to revise a piece conceptually, students must be able to reflect on whether their message matches their writing goal.
Explanation: :)
What is the speed of an angry goblin
if it flies 32 miles in 4 hours?
we have that from the Question"What is the speed of an angry goblin if it flies 32 miles in 4 hours? " it can be said that
the speed of an angry goblin if it flies 32 miles in 4 hoursv=8miles/hourFrom the Question we are told
What is the speed of an angry goblin if it flies 32 miles in 4 hours?
Generally the equation for Speed is mathematically given as
[tex]V=d/t\\\\Therefore\\\\\v=d/t\\\\v=\frac{32}{4}\\\\[/tex]
v=8miles/hour
Therefore
the speed of an angry goblin if it flies 32 miles in 4 hours
v=8miles/hour
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The speed of an angry goblin is equal to 8 miles per hour, if it flies 32 miles in 4 hours.
Given the following data:
Distance = 32 miles. Time = 4 hours.To determine the speed of an angry goblin:
Speed can be defined as the distance covered by an object per unit time and it is usually measured in meter per seconds (m/s).
Also, speed has magnitude but no direction and as such it is a scalar quantity.
Mathematically, speed is given by the formula;
[tex]Speed = \frac{distance}{time}[/tex]
Substituting the given parameters into the formula, we have;
[tex]Speed = \frac{32}{4}[/tex]
Speed = 8 mi/hr.
Therefore, the speed of an angry goblin is equal to 8 miles per hour, if it flies 32 miles in 4 hours.
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True or false: the food chain of land animals begins with the soil
Answer:
True
Explanation:
The primary producers are the first trophic level of the soil food web. Organisms in this trophic level are photosynthesizers, including plants, mosses, algae, lichens and photosynthetic bacteria. ... Primary consumers obtain energy by eating primary producers or the residues they produce.
Hope this helps :)
Which is true about all unicellular and multicellular organisms?
O They are made of one cell.
O They reproduce.
They cause infections.
O They are made of multiple cells.
The diagram shows a food web , In the food web - ( I NEED HELP ASAP )
A dog is part of which sphere of earth
Answer:
I think it would be biosphere
Explanation:
Bio means of life or living things. Birds fly through the atmosphere, water flows through the soil and the dogs drink the water
Hope this helps!