Describe convection currents

Answers

Answer 1

Answer:

it is a process whereby energy moves from one place to another

Explanation:


Related Questions

Organic phosphate is taken up by producers during photosynthesis and released by cellular respiration.

True or false ?

Answers

Answer:

true

Explanation:

pa brainliest po please

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19. Dax just completed a report on car transportation. He concluded that gasoline
prices will likely rise significantly in the years to come and recommends lower-
cost car transportation for the future. Dax's younger sister, Ava, just completed a
report on air pollution. Ava concluded that gasoline-powered cars cause too
much pollution and recommends that they should not be used in the future.
Which of the following is a solution for the future that would follow both Dax's
and Ava's recommendations?

Answers

A solution for the future that would follow both Dax's and Ava's

recommendations will be to develop cars that run on fuels that pollute less

and cost less than gasoline.

The use of other fuels such as electricity is cheaper than gasoline and will

help tackle the problem of the rising cost of gasoline.

The use of alternative sources doesn't involve the release of gases such as

carbon monoxide etc which pollutes the environment as carbon isn't burned

when electricity is used.

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Answer:

development of cars that run on fuels that pollute less and cost less than gasoline

Explanation:

What else should the second group of researchers measure to test its
hypothesis?
OA. the current levels of water in the river
ОВ.
the type of pollen in cores from a nondrought period
OC.
the composition of microscopic charcoal released during natural fires
OD
the quantities of sediments in cores from the delta during a
nondrought period

Answers

The type of pollen in cores from a nondrought period, the composition of microscopic charcoal released during natural fires, the quantities of sediments in cores from the delta during a nondrought period.

Thus option B, C, D are correct. These are the second group of test of hypothesis.

What are the steps of test of hypothesis ?

Testing of Hypothesis testing is used to determine the plausibility of a hypothesis.

The test assess the plausibility of the hypothesis of a sample data.

It occurs through different steps, the first step is used to test the state the two hypotheses.

In the next step evaluation of data, third step include carry out plan and analyze the data.

The final step is to analyze the results of the data, it can either accept the hypothesis and reject the null hypothesis.

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Please, someone, help me with this asap!

Observe the cut ends of the flatworms using the hand lens or the dissection microscope immediately after cutting.
What do you see?
Are there distinct differences between the two ends?
Observe the cut ends of the flatworms over a period of several days. Do the flatworm halves continue to exhibit the same degree of difference that was seen right after they were cut in two?
What kinds of changes occur in the flatworms as they recover from having been cut in two?

Answers

The above question requires a personal answer about your experience with cutting flatworms. I can't tell you what you saw in this cut, but I'll show you what happens when it occurs.

First of all, you must understand that flatworms are worms with a great capacity for cell regeneration even if several pieces have been cut.

In this case, when a flatworm is cut in half, we can see the following events happen:

At the moment of cutting, the two ends of the flatworm body are equally shaped and are straight ends, without deformations.The ends will not be different if the cut is done accurately, but it may differ slightly.After several days, the ends will present some deformations and will lose the straight shape caused by the blade.Deformations are extremely similar and change similarly.When recovering from the cuts, each side of the flatworm body formed a new flatworm and they are no different, they are the same and they are completely recovered.

This is because the cellular regeneration of flatworms is very fast and allows any part of the flatworm's body to create exactly the same beings, as they have the same genetic makeup.

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an adaptation of the epithelial cells of the proximal convoluted tubule for reabsorption is

Answers

Answer:

microvilli

Explanation:
having microscopic projections called microvilli. The epithelial cells of the proximal convoluted tubule are adapted.

intermediary molecules that accept electrons and transfer them to another molecule are called

Answers

Intermediary molecules that accept electrons and transfer them to another molecule are called. coenzymes.

24. What is evidence for the endosymbiotic theory? (a) rna can catalyze metabolic reactions. (b) meteorites contain organic molecules. (c) amino acids can be synthesized from inorganic compounds.

Answers

I think it’s A but i’m not sure

What is one defining feature of a prokaryotic cell?


have a cell wall outside plasma membrane


cytoplasm surrounds organelles


organelles are not membrane-bound


membrane-bound organelles

Answers

Answer:

Here.

Explanation:

Cytoplasm Surrounds Organelles

Chemical to thermal to electrical current?Energy conversion of corn

Answers

Answer:

A battery is a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction. This type of reaction involves the transfer of electrons from one material to another via an electric circuit.

Mutations cause changes in _____.

Answers

Answer:

mutation cause changes in genetic material

What happens when an action potential is produced with a signal that is stronger than threshold?

A)
weaker action potential generated

B)
no action potential generated

C)
action potential has same strength as threshold

D)
stronger action potential generated

Answers

Answer:

C) action potential has same strength as threshold

Explanation:

What happens when an action potential is produced with a signal that is stronger than threshold action potential has same strength as threshold

When an action potential is produced with a signal that is stronger than the threshold, the resulting action potential is typically stronger or more intense compared to a standard action potential. The answer is D) Stronger action potential generated.

The threshold is the minimum level of depolarization required to initiate an action potential in a neuron. If the signal surpasses the threshold, it means that the depolarization is greater than what is necessary to trigger the action potential.

When a stronger signal is received by the neuron, it results in a larger influx of ions (such as sodium) into the neuron, leading to a more pronounced depolarization of the cell membrane.

As a result, the action potential generated will have a higher amplitude or voltage compared to a regular action potential. Therefore, the answer is D) Stronger action potential generated.

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Ciliated ependymal cells: A) help form the blood-brain barrier. B) circulate cerebrospinal fluid. C) form myelin in the brain and spinal cord. D) serve as wandering phagocytes during brain injury.

Answers

Ciliated ependymal cells: circulate cerebrospinal fluid.

Ependymal cells are a type of epithelial cell that is associated with the cavities of the body through which the cerebrospinal fluid circulates.

They are part of glial cells, which share space with neurons in the nervous system.

They create the membranes that keep cerebrospinal fluid circulating through the ependymal canal of the spinal cord and the cerebral ventricles.

For this, the ciliated structure that these cells present is essential for a correct movement of the cerebrospinal fluid, preventing it from spilling through other tissues and passing to areas of the body where it should not be.

The cilia move rhythmically creating tiny currents for fluid to flow through the central nervous system.

A small fraction of highly specialized and modified ependymal cells, called choroidal cells, are responsible for generating this essential fluid.

Therefore, we can conclude that ciliated ependymal cells circulate cerebrospinal fluid.

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how is metaphase produced?​

Answers

Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. ... As metaphase continues, the cells partition into the two daughter cells.

Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. As metaphase continues, the cells partition into the two daughter cells.

Hydrogen and oxygen are examples of which of these?

elements

compounds

molecules

none of the above

Answers

I think the answer is elements
The answer is element

Can an objects mechanical energy be equal to its gravitational potential energy?

Answers

Answer:

Yes

Explanation:

Because if an object falls, it gives up its gravitational potential energy. The gravitational force does work on it, and speeds it up.

Answer:

yes

Explanation:

if an object does not have kinetic energy, meaning, it is not moving, its mechanical energy would be equal to its gravitational energy.

Which muscle extends the knee, laterally rotates the tibia, aids in abduction and medial rotation of the femur, and tautens the iliotibial tract to brace the knee when the opposite foot is lifted

Answers

The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

The popliteus muscle is a little muscle that extends the knee and form muscle the floor of the popliteal fossa. It is part of deep posterior leg muscles, that rotate laterally tibialis posterior, flexor digitorum longus and flexor hallucis longus.

The popliteus muscle extends to the knee joint. It is formed from the femur and the posterior horn of the lateral meniscus, and also extend to the proximal tibia.

The popliteus muscle help to function in an gait cycle by causing the flexion of the extended (“locked”) knee.

Therefore, The popiletus muscle is the muscle that extends the knee , laterally rotates the tibia.

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1. Science has limits and cannot answer all questions. Define science, and then give an e question that science is able to answer. ​

Answers

Answer:

science is the study of the structure and behavior of our world and universe.

Things science cannot explain

Why ice is slippery

How many species of animals and living things there are

Explanation:

Steve is running at an average of 3mph. He was out for a run for 3 hours how many miles did he travel? 1a. What formula did you use to solve #

Answers

He has ran 9 miles
Since he was running at 3mph and ran for 3 hours you could write this as 3x3

what needs to occur for a fluorescent mineral to give off light?

Answers

Fluorescent minerals contain particles in their structure known as activators, which respond to ultraviolet light by giving off a visible glow. Ultraviolet light is a form of electromagnetic radiation invisible to the human eye. There are two classified ultraviolet wavelengths: longwave and shortwave.

is a wrong?..........​

Answers

Answer:

no it is correct I think hops it helps a lot;))))

No a is correct………………:))

Armstrong's first footprint is still visible on the surface of the Moon. We know this even
though no one has returned to the moon in over 30 years. How can we know this for sure?

Answers

Answer: there is know air in space so that being said nothing could damage the footprint (no weathering in space)

Explanation:

Pesticides may enter a forest ecosystem in a number of different ways. Sometimes,
humans intentionally introduce a chemical pesticide to a forest to control the spread of an
invasive species. Although a pesticide may be designed to destroy this species and benefit

the ecosystem, using it can sometimes have unintended consequences.
Which sentences describe possible negative, unintended consequences of this practice?
Select all the correct answers.
The pesticide may be absorbed by other plants and harm them.
Animals that consume plants may ingest the pesticide and be harmed by it.
The pesticide may rid the ecosystem of the species it is designed to destroy.
The pesticide may enter the soil and be washed to other locations by moving water.

Answers

Answer:

The pesticide may be absorbed by other plants and harm them;Animals that consume plants may ingest the pesticide and be harmed by it.;The pesticide may rid the ecosystem of the species it is designed to destroy.

Explanation:

I feel these are the most negative consequences they could have

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Your friend wants to have her DNA tested because she thinks it will help her identify what foods she should eat. What is your advice to her

Answers

Answer:

IT WANT IT JUST SSY YOUR BLOOD TYPE

the mycelium is a mesh of filaments, each of which is called

Answers

The mycelium is a mesh of filaments, each of which is called a hypha

What is the temperature shown on the thermometer?

Answers

Answer:

ANSWER

19°C or 19.5°C

HOPE IT HELPS

Answer:

19°

Explanation:

From 10 to 20, there are 4 lines.

Each line stands for 2, and the fourth line between 10 and 20 is 18. The red stops between 18 and 20, so the answer is 19 degrees.

How does a cell know which genes to express.

Answers

The dominant alleles will always be expressed if there is at least one dominant allele in each gene. If there are no dominant alleles, the cell will express a recessive trait. The alleles’ dominance or recessiveness determines what gene is expressed.

When testing the effect of penicillin on the growth of E. coli, penicillin would be considered the? A.independent variable B. dependent variable C. constant

Answers

A. It’s the thing you change and you’ll measure the E. coli growth

which of these are the repeating units that form DNA molecules?
a. fatty acids
b.nucleotides
c.amino acids
d.chromosomes​

Answers

Answer:

d.chromosomes

Explanation:

A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation

Which of the following is a sign of illness in a dog?

Answers

The symptoms a dog may experience when ill is increase in sleeping habits, drool, lick their lips, and swallow excessively, excessive panting or labored breathing, dry or itchy skin, sores, lumps, or shaking of the head.

which best describes the sex chromosomes

Answers

sex chromosomes are the chromosomes which describe sex of an individual

female have teo X chromosomes and male have one X and one Y chromosome

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