Answer:
Explanation:
Industrialization and use of combustible engines for daily life activities by humans has led to the production and release of a large amount of greenhouse gases (such as CO₂, N₂O, CH₄ and CFC) into the atmosphere-which prevents a large amount of heat produced from the earth moving to space.
The burning of fossil fuels by combustible engines (from cars, trains, power generating sets e.t.c) widely used by humans has led greatly to this climate change. Trees that help absolve a large amount of the most abundant man-made greenhouse gas (CO₂) has not been massively planted around, which indirectly worsens the case of global warming. Trees would have absorbed/breath in the CO₂ while producing/breathing out O₂ that could help cushion the effects of global warming.
Which cell would doctors conclude is a cancerous mass?
A. A
B. B
C. C
D. C
The correct answer is A
Explanation:
Cancer including cancerous mass or tumors is caused by an abnormal and uncontrolled reproduction of cells. This means cell division occurs faster than normal and leads to damaged or malfunctioning cells. Moreover, in terms of the number of cells vs time, cancer leads to a high number of cells in a short time. This occurs in cell A because different from cells B, C, and D, this has increased the number of cells in a short time, while others have decreased over time or remain constant. According to this, the cell that is a cancerous mass is A.
Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. What is one benefit of this procedure?
Patients do not receive harmful or ineffective medication.
The cultured cells are not in their normal environment.
Doctors know how to treat all types of cancer.
One tissue culture can be used for all cancer patients.
Answer:
b. Patients do not receive harmful or ineffective medication.
Explanation:
on edge
Tissue culture is used to treat cancer patients, as this procedure does not use any harmful or ineffective medication on the patients unlike the other treatment options. Thus, the correct option is A.
What is Tissue Culture?
Tissue culture is the process of growth of tissues or cells in an artificial medium that is separate from the parent organism. This technique is also known as micropropagation method. It is typically facilitated via the use of a liquid, a semi-solid, or a solid growth medium, such as the broth or agar medium.
Tissue culture is used widely in science for the propagation of plants, in the study of medicines such as those related to cancer. Tissue culture can be used as a treatment option in cancer as this technique does not show any harmful or ineffective medication. The cultured tissues of stem cells can be used for replacement of infected cells or body parts.
Therefore, the correct option is A.
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what will happen if one part of the system fails to carry out its fanction properly?
Answer:
If one part of the system fails to carry out its function properly, the air we breathe cannot go to the lungs the transferring of oxygen in the blood will be affected. If this happens, a person will most likely have a difficulty in breathing which may lead to other complications or even death.
Explanation:
I hope it helped
Answer:
Hope it helps
Explanation:
If one part of the system fails to carry out its function properly, the air we breathe cannot go to the lungs the transferring of oxygen in the blood will be affected. ... Oxygen, as it enters our body, moves to a series of parts in the breathing system that are connected to each other and needs to work as one.
Which statement about lunar eclipses is false?
Select one:
a. They occur at least twice a year.
b. They cause the moon to disappear completely.
c. They can be seen from any place with a view of the moon.
d. They may last for hours.
Answer:
B
Explanation:
The moon won't completely disappear, but it will be cast in an eerie darkness the makes it easy to miss if you were not looking for the eclipse.
11. In which of the following examples will water move into the cells of the large intestine from the outside environment by the process of osmosis?
Osmosis occurs in the large intestine to transfer water from the feces into the neighboring cells.
What is the process of osmosis?Water is transported across cell membranes through diffusion and osmosis. The body reabsorbs absorbable solutes and electrolytes from meals (namely salt, potassium, and chloride ions).
The total solute concentrations and the permeabilities of the solutes in relation to water define the effective osmolality of a biological fluid, the large intestine to transfer water from the feces into the neighboring cells.
Water molecules move by osmosis across the cell membrane from a lower solute concentration to a higher solute concentration.
Therefore, osmosis, a kind of diffusion, is how water enters and exits the cell's large intestine to transfer water from the feces.
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Why are there many separate ecosystems in a rain forest?
A. There are three different seasons in a rain forest.
B. There are three levels of consigners in rain forests.
C. Rain forests have very few primary consumers.
D. Different conditions support different organisms.
If we mixed sodium and iron
then the result will be?
Answer:
u can't mix them
two solid metals can't form solution.
Sodium hydroxide and iron when it reacts with water the result will be tetrahydroxoferrate
what is one major difference between prokaryotes and eukaryotes
Answer:
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead. From prokaryotic cells to eukaryotic cells
Explanation:
hope it help
Answer:
eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead
Explanation:
IN YOUR OWN words define science
HELP
Density is an intensive physical property because the density of a given substance does not change with the size of the sample.
True
False
Answer:
✅True
Explanation:
Density is an intensive physical property because the density of a given substance does not change with the size of the sample.
IamSugarBee
5 Devise Imagine that one tree outside your
school looks unhealthy, although all the other
trees seem healthy and strong. Describe how
you could apply scientific thinking to the
situation.
What is one way to analyze the results of an experiment?
Answer: One way to analyze the results of an experiment by looking at the chemical and physical changes. Signs of a chemical change are bubbles or production of an odor. Signs of a physical change are change in color, shape, or size.
What is the first stage of the nuclear fuel cycle? WILL GIVE BRAINLY AND 22 POINTS Fuel production Uranium mining Reprocessing Disposal
Answer is uranium mining.
Answer:
THE NUCLEAR FUEL CYCLE STARTS AS THE MINING OF URANIUM.IT THEN ENDS AT DISPOSAL OF NUCLEAR WASTE.WITH THE PROCESSES I NG OF USED FUELS AS AN OPTION FOR NUCLEAR ENERGYWhich statement is an example of scientific theory?
A. Hummingbirds do not like the color white because they visit other colored flowers more often.
B. The earth is the third planet from the sun and has one moon, which orbits earth.
C. The amount of caffeine that affects a persons heart rate differs based on the persons age.
D. All living organisms are composed of one or more cells, which came from pre-existing cells.
Answer:
I suggest the answer is b
What is BTB changing color evidence for and why?
Answer:
ddd
hauajajsnwnjsjekddidkkdkd
Explanation:
d9d
sjdnejekkejejre
In the periodic table, periods are_____rows.
Answer:
It's a row of chemical elements
Answer:
The rows on the periodic table are called periods. All the elements in a period have valence electrons in the same shell. The number of valence electrons increases from left to right in the period. When the shell is full, a new row is started and the process repeats.
Explanation:
Hope this helps! :)
What are Pioneer organisms in a Primary and secondary succession?
Answer:real remains
Explanation: because of real time
While observing slides under a microscope, Jack adjusts the microscope's mirror so that a circle of light can be seen. Which microscope is in use?
A.
Compound microscope
B.
Electron microscope
C.
Scanning electron microscope
Answer: A compound or light microscope
Explanation:
Can someone help me i got very confused
Answer:
D. student 4
Explanation:
I personally find this question slightly bewildering. It does definitely make you think. I decided your best answer choice would be D, because a dog wouldn't always be there, or the weeds.
fats are broken into saturated fats
Answer: saturated fats
Explanation:
Fats that are tightly packed with no double bonds between the fatty acids are called saturated fats. There are some exceptions, but most are solid at room temperature. Sources of saturated fat include: fatty pieces of meat such as beef and lamb.
Hydroponics is defined as the practice of growing plants without soil used to provide support or nutrients or ‘Soilless Farming'. How is ‘Hydroponics' an effective method of farming in arid and dry zones other Earth?
Answer:
Hydroponics solves the problem of unavailability of water in those arid and dry regions
Explanation:
As rightly stated in the question, hydroponics is a practice that involves the culturing of plants without the need for soil. Hydroponics procedure make use of a moisture-containing solution filled with nutrients.
This procedure of hydroponics, however, comes with some disadvantages but one major effectiveness it has in arid or dry regions is that it SOLVES THE PROBLEM OF WATER UNAVAILABILITY. When it comes to farming practice using soil, constant water supply is an unnegotiable criterion because water is needed for the growth of plants in the soil.
However, in arid regions, which are usually very dry due to lack of rainfall, the practice of hydroponics can substitute for soil farming in order not to cause food scarcity.
Please please help with this question!
Explain the water cycle starting as a water molecule in the ocean.
The question is about the water cycle in the ocean. It says that your answer should start from the water molecule (H20, polar, covalent, Oxygen being Electronegtive, etc.)
Give an example of something that has a high specific heat capacity.
When the Big Bang Theroy happend the heat capacity was 14.5 billon digrees
describe the role of humans in environmental stability and change
How is variation introduced into populations of asexual organisms such as bacteria and amoebas?
Answer:
In asexual reproduction an exact genetic copy of the parent organism is produced. Unlike sexual reproduction, asexual reproduction only introduces genetic variation into the population if a random mutation in the organism's DNA is passed on to the offspring.
Explanation:
Atoms have three subatomic particles: protons, neutrons, and electrons. ... Knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucleus of an atom? The nucleus of an atom has a positive charge because the proton is positive and the neutron is neutral.
The atom is positive.
Answer:
the atom is positive
Explanation:
How are the Domain Bacteria and the Domain Achaea similar?
Answer:
-They both have unicellular organisms
- They also both have autotrophes & hetertrophes
Does a rock use energy
Answer:
No
Explanation:
A rock has no way of consuming energy as it is not a living organism, and cannot perform any processes to transform energy.
What happened to the compasses when a current flowed through the wire?
4)
All of the following pieces of equipment EXCEPT for
another.
could be useful for transferring a liquid from one container to
A)
beaker
B)
flask
petri dish
D)
graduated cylinder
Answer:
The answer is C. Petri Dish because a beaker, flask and graduated cylinder all hold liquid and can be transferred.