When the left ventricle is full, the mitral valve closes and keeps blood from flowing backward into the left atrium when the ventricle contracts.
How does water specific heat relate to its usefulness for life gives many examples as possible
Answer:
Waters high specific heat is very useful to life. If water did not have such a high heat capacity the temperature of Earth would change violently with the changing of day to night. This world would be very difficult to survive in.
example: The oceans would become frigid at night and boil during the day
measurable factors which are used to quantify pollution or the quality of the water
Answer:
Physical: It includes the measurement of water temperature, turbidity, total suspended particle in the water sample. Chemical: It includes the measurement of pH value, Chemical Oxygen Demand(COD) and Biological Oxygen Demand(BOD.
i hope this helpsExplanation:
Which of the following is NOT a physical change?
A Bursting of a firecracker
B. Boiling water
C. Melting ice
I need to know How many insects have been named by science are living in the Amazon rainforest? (Not the estimated amount, not the 2.5million)
Answer:
2.5 million species
Explanation:
The Amazon rainforest may house as many as 2.5 million species of insects, although only a tiny fraction of this number have been described by scientists.
brainliest please
List TWO functions of a nucleus.
Answer:
1. It contains the genetic information of the cell in the form of deoxyribonucleic acid (DNA) or chromosomes and thus, controls cell growth and multiplication.
2. It regulates cell metabolism by synthesizing various enzymes.
Answer:
Two functions of a nucleus are:-
● To store the cell's DNA.
● maintain its integrity.
Hope it helps you.How long does it take for mammals to evolve into a distinctly new species? What changes occur over
this time?
Answer:
i hope this helps <3
Explanation:
A new study by Matt Davis at Aarhus University throws these losses into stark relief. He estimated how long it would take for mammals to evolve enough new species to replace the ones that we have eradicated. And his most realistic answer is somewhere from 3 million to 7 million years.
The time that would be taken for mammals to evolve into a distinctly new species is 3 million to 7 million. The changes that will occur will be mental and physical changes.
What is evolution?Evolution is a process of changing human characters or other animal characteristics over time. Evolution happens with time, and it is a natural process.
Species is a term that refers to different animals and plants living in the environment. Organisms of the same species can reproduce with each other. Other species are different from the one species.
Evolution in every species occurs with time and environmental conditions for better survival in the environment.
Thus, it would take mammals between 3 million and 7 million years to evolve into a wholly new species. The alterations that take place will affect both the mind and the body.
To learn more about evolution, refer to the link:
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Which theory allows material to pass in and out of the cell
Answer:
water
carbon dioxide and
oxygen
Answer:
cell membrane
Explanation:
It controls what moves in
and out of the cell. Cell membranes only
allow some solutes (solids) to move across it. Movement across the membrane depends on size and type of the solute
Question 11
4 pts
All of the following are examples of maintaining homeostasis except:
O A drop in body temperature triggers shivering which generates heat; an increase in body temperature triggers
sweating which releases heat.
© By opening and closing pores in their leaves, plants continuously exchange oxygen and carbon dioxide with
the atmosphere.
O A cancerous tumor continues to grow larger and then metastasizes, spreading to new areas of the body.
O Feelings of hunger and then fullness affect the length of time between meals and quantity of food you eat,
keeping your weight near a "set point."
0 A sensor detects CO 2 levels in the blood and triggers an increase or decrease in the rate of breathing.
In biology, homeostasis refers to the mechanisms by which biological systems maintain an internal state of steady conditions. The state of homeostasis is fundamental to ensure the survival of biological systems.
All of the examples above are biological responses for maintaining homeostasis EXCEPT a cancerous tumor continues to grow larger and then metastasizes, spreading to new areas of the body.In cancer, the homeostasis of the system is lost and then cancer cells proliferate in an uncontrolled fashion, thereby leading to metastasis.Normal cells lose their homeostasis and convert into cancer cells by accumulating mutations that lead to the inactivation of tumor suppressor genes and/or activation of oncogenes.Learn more in:
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Which statement about human population growth is FALSE?
a) From 1350 AD to the present, the world has experienced continuous population growth.
b) From 200,000 BC through 8,000 BC, the global population was low.
c) The global population is expected to peak at 7 billion, then begin decreasing.
d) The world population doubled between 1959 and 1999.
Which statement about human population growth is FALSE?
Choose: c) The global population is expected to peak at 7 billion, then begin decreasing.
The false statement is: The global population is expected to peak at 7 billion, then begin decreasing.
What is meant by population growth?
Population growth is the increase in the number of humans on Earth. For most of human history, our population size was relatively stable. But with innovation and industrialization, energy, food, water, and medical care became more available and reliable.
Was there population growth in 2020?Population gains attributable to natural increase rose as high as 1.1 million in 2016-17, but dropped to 677,000 in 2019-20 and then again to 148,000 in 2020-21.
Learn more about population growth here https://brainly.com/question/25630111
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QUESTION 27
What entity can infect cells and take control over transcription and translation?
Digestion is ________. Group of answer choices Only mechanical Neither mechanical nor chemical Both mechanical and chemical Only chemical
why cell known as structural and functional unit of life.
Explanation:
The cell is known as the structural and functional unit of life because all living beings are formed of cells. Cells are very important for performing various life processes which are required for sustaining life on earth. Moreover, cells give form and structure, process nutrients and make it into usable energy.
Answer:
Cell known as structural and functional unit of life
Explanation:
Cells are Known as Structural and Fuctional Unit of Life because It carries several life processes in its own such as Cellular Respiration and Digestion. These are also Building Blocks of our Body.
Which surface would create the most friction?
Asphalt covered in oil
A frozen pond
A cement sidewalk
A wet floor
Answer:
3rd option-Cement sidewalk
Does Europe have a rainforests? Please select the best answer from the choices provided OT O Mark this and return Save and Exit )
Answer:
While Europe has no Tropical Rainforests, which are what most people immediately think of when they hear the term, it contains several Temperate Rainforests, most notably in Northern England, Scandanavian countries, and the Colchis Rainforest in Bulgaria, Turkey, and Hungary.
Explanation:
So yes, Europe has rainforests.
There are two types of rainforests in the world, temperate and tropical rainforests. Europe has temperate rainforests -not tropical-.
Rainforests
The rainforest ecosystems can be classified according to various criteria such as latitude, temperature, humidity, seasonality, and altitude.
There are two types of rainforest in the world
Tropical rainforest ⇒ The Amazonian, for instanceTemperate rainforest
Temperate rainforest
They are found in areas with cool and milder temperatures, with moderate to high humidity levels and temperatures ranging between 10º and 21º C.
Since rainfalls are not as abundant as in tropical rainforests, vegetation is not as exuberant.
Vegetal coverage is very high and arranged in many different strata.
Vegetation is dominated by phanerophytes and epiphytes. These are evergreen plants with leathery leaf types, medium to small in size.
Does Europe have rainforests?
Europe has temperate rainforests -not tropical-.
It is very fragmented. It is placed mostly between north and west Europe.
Perucica rainforest is the biggest one in Europe.
You can learn more about Temperate rainforest at
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Why are conservation groups pushing for worldwide restrictions on whaling
Answer:
Why are conservation groups pushing for world-wide restrictions on whaling? Unrestricted whaling could lead to their extinction. A population of bacteria is treated with an antibiotic.
Explanation:
What is the temperature of each thermometer. I already got the first one. I just don’t know the difference between Celsius and Fahrenheit.
Answer:
hope it helps
Explanation:
b: 51.6 degrees
c: 22.5 degrees
d: 14 degrees
e: -11.5 degrees
f: 66 degrees
Clyde will perform a test on a compost pile. The items in the compost pile are shown here.
What scientific questions could Clyde ask about the compost pile? Check all that apply.
Which item breaks down the fastest?
Does decaying fruit smell the worst?
Will the items break down faster if heat is added?
Will enclosing the items in an airtight bag affect the rate of decay?
Is it a good idea to compost garbage?
Answer:
Which item breaks down the fastest?
Will the items break down faster if heat is added?
Will enclosing the items in an airtight bag affect the rate of decay?
Answer: a,c,d
Explanation:
edge
Group of cells make:
Group of tissues make:
Group of organs make:
Answer:
Group of cells make: A tissue
Group of tissues make: An organ
Group of organs make: Organism
Answer:
group of cells make tissue
group of tissues make organs
group of organs make organism
Explanation:
hope this helps
Which characteristic would be most important when a scientist needs to study the changes in climate conditions over a five-year period? curious observant ethical creative
Answer: b that other dude wrong Explanation:
Answer:
B is the answer
Explanation:
took the quiz on edg 2022
why mesophyll cell is considered as parenchyma cell
Answer:
Mesophyll is not a tissue technically speaking. It's just a place, a specific area. Or you can even think of it as the set of all tissues in a given area.
To explain scientific biological phenomena, scientists use a technique called
A~ the scientific method
B~ the scientific law
C ~ conclusions
D~ measurements
Answer:
the scientific methothe formula and testing of a hypothesis is part of the scientific method
The diaphragm is cranial to the heart.
True
False
Answer:
false. it is caudal
Fracking uses highly pressurized fluids, such as water mixed with sand and chemicals, to drive open cracks that exist in underground rock. Which statement best describes an environmental consequence of this process?
A. Chemicals added to the liquid can contaminate groundwater.
B. Wastewater is contaminated with oil and becomes sludge in landfills.
C. Water vapor is released into the air, which is considered a greenhouse gas.
D. Heavy metals are released into surrounding soil, poisoning local vegetation.
Answer:
Option A, Chemicals added to the liquid can contaminate groundwater, this statement best describes an environmental consequence of this process.
Explanation:
Fracking is a process of digging fossil energy sources, which need a lot of water and uses local water resources. It is drawn with high-pressure water, sand and elements, creating high pressure to block the porous rock and discharge gas. The spill itself stops energy from the drilling position, and may even make earthquakes, mainly due to the pumping of overflowing wastewater into porous rock types such as limestone. The most significant result of water distortion is on groundwater.To learn more about fracking, refer:
https://brainly.com/question/9494140https://brainly.com/question/23719588Answer:
A
Explanation:
What is unusual about the peptide bond compared to the other covalent bonds that form the polypeptide backbone?
A) The side chains only face internally, excluding them from interacting with water.
B) The single bonds on either side of the peptide bond cannot rotate, making the peptide backbone very rigid.
C) There is an amino group on one end of the backbone and an aldehyde group on the other.
D) Peptide bonds behave like double bonds in terms of stability and lack of movement of atoms around the bond.
Answer:
D
Explanation:
A peptide bond is also known as amide bond which is formed between two amino acid molecules. An amino acid contains two functional groups; a carboxylic acid group and an amino group. ... The resulting linkage between two amino acid molecules is called a covalent bond.
The unusual about peptide bond is ( D ); Peptide bonds behave like double bonds in terms of stability and lack of movement of atoms around the bond
The polypeptide is the Non-R group of amino acids polymers that consists of
N-C-C-N-C-C-N , and the polypeptide backbone allows for the backbone to backbone hydrogen bonding and it acts as a contributor to the secondary structure of the protein.
also the linkage between amino acid molecules is called a covalent bond.
Hence the unusual about the peptide bond when compared to other covalent bonds that form the polypeptide backbone is Peptide bonds behave like double bonds in terms of stability and lack of movement of atoms around the bond
learn more : https://brainly.com/question/10500237
What are the tool used to look at the basic structure
Answer:
Documentation,link section ,definition section ,main function ,etc
Which one of the following is a defining characteristic of animals but not of plants? Group of answer choices Animals, but not plants, are autotrophs Animals, but not plants, are eukaryotes Animals, but not plants, are heterotrophs Animals, but not plants, are prokaryotes
Answer:
the given characteristic of animals but not of plants are:
eukaryotic animal
heterotrophs animals.
The characteristic that defines animals but not plants is that animals, but not plants, are heterotrophs.
What are heterotrophs?Heterotrophs are living organisms that are incapable of synthesizing their own food, like autotrophs.
Plants are autotrophic in nature meaning that they can produce their own food using sunlight energy.
All animals are heterotrophic in nature i.e. do not exhibit any form of autotrophism.
Therefore, the characteristic that defines animals but not plants is that animals, but not plants, are heterotrophs.
Learn more about heterotrophs at: https://brainly.com/question/25846728
What is found in the cryosphere?
O A. Mostly seawater from Earth's oceans
O B. Most of Earth's freshwater
O C. Only frozen water at the polar caps
D. Only frozen soil known as permafrost
what is the different Chief of the PNP and chief of the Police
Answer:
The Chief of the Philippine National Police (C, PNP) (Filipino: Hepe ng Pambansang Pulisya ng Pilipinas[2]) is the head of the Philippines' national police body, the Philippine National Police (PNP). The position is invariably held by a Police General, a four star general police officer.
The PNP chief is also an ex officio member of the National Police Commission as a commissioner
Explanation:
If you have a density of 3 g/ml and a volume of 10 ml
Answer:
Density=mass/volume. Mass=volume×density=10×3=30g.
NEED ASAP
James wanted to investigate how weathering, erosion and deposition
changed the surface features on Earth.
What model would best
demonstrate these processes?
a)stream table
b)shake table
c)globe
d)rock cycle diagram
d rock cycle diagram because all of the above is related to rocks
