Answer:
For example, when a pot of water is placed on the stove to boil, conduction heat warms up the pot, which then heats the water molecules inside. As these molecules heat, convection causes them to move away from the interior of the pot as they are replaced by cooler molecules.
how do leaves develop?
Answer:
Abstract. A leaf develops from a few cells that grow, divide, and differentiate to form a complex organ that is precisely positioned relative to its neighbors. How cells communicate to achieve such coordinated growth and development is the focus of this review.
For each of the following causes of extinction, explain how the increase in the human population makes the problem worse.
a. Habitat alteration
b. Commercial hunting
c. Competition
d. Sport hunting
e. Pest control
f. Pollution
Answer:
Im pretty sure its E sorry if its wrong.
Which of the following is a possible path for carbon to cycle through an ecosystem?
1. Atmospheric CO2 -> animals -> factories -> fossil fuels -> plants
2. Atmospheric CO2 -> factories -> fossil fuels -> animals -> plants
3. Atmospheric CO2 -> plants -> animals -> fossil fuels -> factories
4. Atmospheric CO2 -> fossil fuels -> factories -> animals -> plants
Answer: 3. Atmospheric CO2 -> plants -> animals -> fossil fuels -> factories
Explanation:
The carbon cycle is one of the types of biochemical cycles in which carbon is recycled in atmosphere, biosphere, lithosphere, and hydrosphere in various forms. The atmospheric carbon dioxide is absorbed by the plants and they utilize it as reactant for the process of photosynthesis in which they synthesize their own food. These plants are consumed by animals further when these plants and animals die their remains form fossil fuels deep beneath the earth crust. It takes about millions of years for fossil fuels to form in the sedimentary rocks. The fossil fuels are utilized by the factories to run their machines. Again when fossil fuels burn they emit carbon dioxide gas in the atmosphere.
Which idea associated with relative dating helped inspire Charles Darwin's work on evolution?
Answer: The idea that the earth is extremely ancient.
Explanation:
Charles Darwin was a British naturalist who worked on the organic evolution of living organisms and in his books outlined how present-day organisms evolved from earlier, different species.
Evolution is an extremely slow process. It is difficult to obtain direct evidence of evolution in action. However, scientist including Charles Darwin, have from many fields gathered a great deal of indirect evidence that supports the theory of evolution. This evidence comes from many sources which include the FOSSIL RECORDS.
The history of life on earth is recorded in fossils (remains of organisms preserved mainly in earth's sedimentary rocks). Scientist can determine the age of rocks in which fossils occurs by using RELATIVE DATING. This method give a geological time scale, showing earth's age ( as measured by dating it's rocks), and tracing the history of life on it.
Therefore the idea that the earth is extremely ancient is associated with relative dating which has helped inspire Charles Darwin's work as an evidence on evolution.
On average, about how many beats does the heart produce per minute?
The heart beats 40 beats per minute
Through the process of nitrogen fixation, legumes such as beans or peas have colonies of nitrogen-fixing bacteria attached to their roots. The plants gain nitrates from the bacteria, and the bacteria gain sugars from the plant. Which type of symbiotic relationship occurs between legumes and nitrogen-fixing bacteria?
Commensalism
Mutualism
Parasitism
Predation
pls pls help what does this have to do w science ldk but pls help lol thanks :)
Answer:
Screw on the right with closer thread
Explanation:
The more thread of the screw, the stronger it can hold the screw in place.
HELP WILL GIVE BRAINLIEST
Answer:
70000
Explanation:
i have to o sciece
PLEASE I NEED HELP!!
Students are asked to make a model that shows each level of structural organization and its function in human beings. Which model should the students use to explain the hierarchy of levels of organization in human beings correctly?
Answer:
The correct answer is option A. muscle cell, muscle tissue, biceps, muscle system, and human being.
Explanation:
In humans and other mammals, there is a specific type of structural organization found in which involves fundamental units to the most exclusive level of organization. The cell is the most basic and fundamental unit of the organism's structure.
Cells joined together to form tissues like muscle cells form muscle tissues, tissues grouped with each other into organs like muscle tissue form biceps, different organs are grouped into organ systems like muscle system form from organs, and many organ systems come together to form complex organisms like human beings.
How have freshwater and salt water fish adapted to deal with osmosis in their respective environments?
Answer:
Salt water fish are perfectly adapted to their salty environment and need osmosis to live. The replacement fluid taken on to replace the lost water is desalinated by a process known as diffusion. Diffusion allows fish to live in a state of constant osmosis
Answer:
Salt water fish are perfectly adapted to their salty environment and need osmosis to live. The replacement fluid taken on to replace the lost water is desalinated by a process known as diffusion. Diffusion allows fish to live in a state of constant osmosis
Explanation:
Pleaseee help! Don’t answer if you don’t know the answer, you will just waste your time! :)
Answer:
1. Red flowers: RR, White flowers: WW, Red & white flowers: RW
2. Incomplete dominance
3. Purebred
4.Offspring are more rapidly produced
5. 100% red flower offspring, 0% white flower offspring
What does the Greek Root "pro" mean?
Answer:
The prefix pro- primarily means “forward” but can also mean “for.” Some words that the prefix pro- gave rise to are promise, pro, and promote. When you, for instance, make progress, you are stepping “forward,” whereas if you give the pros in an argument, you are speaking “for” something by stating its advantages.
Explanation:
A population of African lions share the same habitat. A small group becomes reproductively isolated
from the rest of the population (mating behaviors no longer match). What type of speciation is this?
a. Allopatric speciation
b. Sympatric speciation
C. Parapatric speciation
d. Peripatric speciation
Answer:
The correct answer is - B. sympatric speciation.
Explanation:
The allopatric speciation occurs in the population that is geographically isolated, parapatric speciation takes place due to reproductive isolation however they occupy distinct nice or habitat.
Peripatric speciation is shows resemblance to allopatric speciation in terms of preventing the exchange of genes however they occur in the small peripheral population.
Sympatric produces a reproductive barrier between the small population that shows change to the parent population.
What is one way water moves through the nonliving parts of an ecosystem
during the water cycle?
A. Sweating
B. Evaporation
C. Photosynthesis
D. Transpiration
Pleaseee helppp
Answer:
The nonliving processes such as evaporation, precipitation, etc., water returns back into the atmosphere.
Explanation:
Water moves through the help of living organisms in an ecosystem.
Although, the non-livings processes are also the main partners of this process.
Plants absorbs water through their root system and loss by transpiration.
Water also moves through the living organisms in an ecosystem.
Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.
What is true of all organisms?
Answer:
they all excrete,grow and develop, reproduce and some move and locomote
The following passage explains the relationship between tectonic plates and earthquakes. Which sentence states incorrect information?
Tectonic plates can push together, pull apart, or slide past each other at their boundaries. The edges of tectonic plates are not smooth, so they create friction as they move. When friction is too great for the plates to move, they can become stuck and pressure can build up. An earthquake occurs when pressure that has built up between plates suddenly is released. The buildup of pressure that leads to earthquakes only occurs at plate boundaries.
Answer:
earthquakes occur when the edges suddenly become unstuck and slip along a fault
Explanation:
Does DNA undergoes translation to produce proteins . RNA undergoes mutation to produce cell walls
Answer:
No
2. Yes
Explanation:
This is because DNA undergo transcription to produce RNA and RNA undergo translation to produce protein. Translation is the process where mRNA molecule is used as a template to produce protein.
RNA undergo mutation more than DNA and this is because the enzymes found in RNA viruses and participate in copying viral genomes is why it occur so. These enzymes does not have the abilities to recognize DNA damage that enzymes in most organisms have.
Research any harmful bacteria and write a short paragraph about it that includes:
* What sickness it causes
* The symptoms that infected patients develop
* How this disease is spread
Make sure you pick a bacteria, not a virus!
please help
i will brainliest and 5 * and 20 points for the best answer
i don't want to see any link as a an answer
if i do you will be reported
Answer:
Noroviruses are a group of viruses that cause gastroenteritis in people. Gastroenteritis is an inflammation of the lining of the stomach and intestines, causing an acute onset of severe vomiting and diarrhea. Norovirus illness is usually brief in people who are otherwise healthy. an RNA virus of the family Caliciviridae, is a human enteric pathogen that causes substantial morbidity across both health care and community settings, causes vomiting and diarrhea. People of all ages can get infected and sick with norovirus. Norovirus spreads easily! You can get norovirus by accidentally getting tiny particles of feces (poop) or vomit from an infected person in your mouth.
Explanation:
It's a bacteria it's says virus but it's a bacteria
Which of the following data would support the claim that the gravitational force
between objects depends on mass?
O An object's weight can change depending where it is on Earth.
O A rocket can escape Earth's gravity by traveling at high speed.
O The further a planet is away from the sun, the smaller the gravitational force.
O Gravitational force is stronger on more massive planets.
Answer:
D.
Explanation:
gravitational force of attraction is stronger on more massive planets such as Jupiter
Gravitational force is stronger on more massive planets, the claim that the gravitational force between objects depends on mass, hence option D is correct.
What is gravitational force?The force that pulls things toward the center of a planet or other body is called gravity. All the planets are kept in orbit around the solar by gravity.
Earth is subject to the same gravity pull that you are. But your force doesn't really affect our globe because Earth is so much larger than you are.
In our world, gravity the moon is maintained in its circle around Earth by gravity, as are the planets in their orbits around the sun. The gravitational force is equivalent to your weight when you are at rest on or near the Earth's surface.
Therefore, gravitational force is stronger on more massive planets, hence option D is correct.
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Landforms are created through destructive forces such as weathering. Which of these is an example of physical weathering? A acid rain. B abrasion. C hydrolysis. D oxidation
Answer: C. HYDROLYSIS
Explenation: Chemical weathering occurs when water dissolves minerals in a rock, producing new compounds. This reaction is called hydrolysis. Hydrolysis occurs, for example, when water comes in contact with granite.
Landforms are created through destructive forces such as weathering, so abrasion is an example of physical weathering that is in Option B as the physical weathering is a type of weathering that involves mechanical breakdown.
What is the significance of weathering in the environment?Physical weathering is caused by physical forces, such as the expansion and contraction of rock due to changes in temperature and abrasion is a specific type of physical weathering that occurs when rock or soil is rubbed against other rock or soil. In physical weathering, rock fragments or particles are carried by water, wind, or ice, and the repeated collisions and friction caused by abrasion can lead to significant changes in the shape.
Hence, landforms are created through destructive forces such as weathering, so abrasion is an example of physical weathering that is in Option B as the physical weathering is a type of weathering that involves mechanical breakdown.
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How many chromosomes does a human body cell contain?
Answer:
A human body contains 46 chromosomes in pairs of 2
Explanation:
A human body contains 46 chromosomes in pairs of 2
Explanation:
didn't even mean to do this
Answer:
If an organism has a beneficial trait, they have a higher chance of survival, and if they can survive they can reproduce too.
Example: Speckled moths camouflage with the bark of trees and are not easily seen by predators. Black moths do not camouflage with the bark of trees and are easily seen by predators, therefore the black moths are eaten. Because the black moths have been eaten they cannot reproduce and pass on the trait for black wings to their offspring, but the speckled moths are able to reproduce because they survived and are able to pass on the speckled wing trait to their offspring.
Answer:
? what is the problem i don't see anything
Explanation:
Oxygen is found in only 3 of the Earth's 4 spheres
true
false
Answer:
It is false as there is oxygen in all four.
The fossil at point X has been dated to be 65 million years old. What can
relative dating indicate about the fossil at point Y? *
A) The distortion of organism by the fault
B) The type of environment the organism lived in
C) The age of the organism when it died
D) The similar time period in which the organism lived
Answer:
D.The similar time period in which the organism lived
Michael planted a tomato plant that produces very juicy tomatoes. When the
tomatoes began to ripen, Michael picked a tomato to eat in a salad. Michael ate the
salad with the tomato at lunch. Later that afternoon, he ran 2 miles during PE and was
sweating at the finish line. How many total energy transformations does this scenario
demonstrate?
1 (potential to kinetic)
2 (chemical to potential,
potential to thermal)
3 (solar to chemical, chemical
to kinetic, kinetic to thermal)
4(chemical to potential
potential to kinetic, kinetic to
nuclear, nuclear to thermal)
Answer:
3 (solar to chemical, chemical to kinetic, kinetic to thermal)
Explanation:
Michael ate a salad. The salad which he consumes becomes chemical energy, but the tomato he put in his salad has used solar energy, which is simply energy from the sun. The kinetic energy is when he runs 2 miles as kinetic energy is the energy gained from movement. When he stops running, he sweats, which means he is losing heat from his body, therefore the kinetic energy store transfers to the thermal (internal) energy store.
I hope this helps!! ^-^
Heredity is the passage of what from parent to offspring?
a. Genetic material
b. Oxygenated blood
c. Digestive enzymes
d. Connective tissue
Answer:
A
Explanation:
Genetic material is what passes down traits and makes us look similar to our parents
When we talk about heredity, we're talking about the precise ways that genes are used to transmit traits or characteristics from one generation to the next, hence option A is correct.
What is Heredity?The instructions for creating certain proteins, which are in charge of an individual's distinctive qualities, are encoded by genes.
The youthful creation of living creatures, known in biology as progeny, can be created by a single organism or, in the event of sexual reproduction, by two organisms.
DNA (deoxyribonucleic acid), which makes up genes, contains instructions for how cells should function as well as the traits that distinguish each individual.
Therefore, each of your biological parents contributes half of your DNA to you, and you could inherit a gene mutation from one or both of them, hence option A is correct.
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Which one is it ill give brainliest
Answer:
D
Explanation:
Which is true about factors that influence
weather?
A. Precipitation type depends on air
temperature.
B. The rain shadow effect causes equal
precipitation on both sides of a mountain.
C. As air sinks, it absorbs moisture and forms
rain clouds.
Answer:
B. The rain shadow effect causes equal
precipitation on both sides of a mountain.
Explanation:
A rain shadow is a patch of land that has been forced to become a desert because mountain ... On the other side of the mountain—the rain shadow side—all that precipitation is blocked. ... This cool air cannot hold moisture as well as warm air. Cool air forms clouds, which drop rain and snow, as it rises up a mountain.
What do desert plants not do so well?
Answer:
lack of water
Explanation:
Answer:
Hey mate.....
Explanation:
This is ur answer......
To survive, desert plants have adapted to the extremes of heat and aridity by using both physical and behavioral mechanisms, much like desert animals. ... Phreatophytes are plants that have adapted to arid environments by growing extremely long roots, allowing them to acquire moisture at or near the water table.
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What is a Structure that no longer has a purpose in an organism is called a. I don’t know the answer pls help
Answer:
Vestigial structure. Hope this helps :P
Explanation: