Answer:
Excretion
Explanation:
The excretory system removes cellular wastes and helps maintain the salt-water balance in an organism. When cells break down proteins, they produce nitrogenous wastes, like urea. The excretory system serves to remove these nitrogenous waste products, as well as excess salts and water, from the body.
which of the following is true of high clouds?
a. they are the result of sublimation. b. they are composed mostly of icy water. c. they generally produce lightning. d. they cause precipitation
Answer:
B
Explanation:
they are composed of mostly of icy water
Which statements describe what happens when enzymes are added to a chemical reaction?
Select all that apply.
- The chemical reaction is sped up.
- The chemical reaction is stopped.
- The activation energy is lowered.
- The enzymes are used up.
Answer:
The chemical reaction is sped up.
The activation energy is lowered.
Explanation:
When enzymes are added to a chemical reaction, they lower the activation energy needed in the reaction.
In return, that also speeds up the chemical reaction, since less energy is needed to start it.
Enzymes do not stop chemical reactions, and enzymes can also be reused, so they are not used up.
So, the first and third statements are correct.
Answer:
The other person is right so you can give him brainly.
Explanation:
How can mutations affect organisms
Answer:
Mutations are essentially evolution. mutations affect organisms because it changes how some things about the organism work, may this be organs, defensive properties, whatever.
Explanation:
May I have brainliest please? :)
Describe how deep oceanic currents are formed.
Answer:
Explanation:
Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.
Answer:
They are caused by: the sinking and transport of large masses of cool water giving rise to the thermoahline circulation. The earths rotation also influences them!
Explanation:
Explain why renewable energy sources like solar, wind, and geothermal power have more limitations to their use than
the burning of fossil fuels.
Answer:
They have a much lower production rate, and they need for example wind, or sunlight to produce energy which aren't always available.
Explanation:
What’s y’all’s fav animal!! Fined the Japanese dwarf flying squirrel!! It looks like it’s out of a cartoon!!
Answer:
mine is a red panda
Explanation:
Need Answer ASAP only 4 min
Answer:
H
Explanation:
This is the circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment.
When the net force of opposite forces is zero, the forces are
A)not even
B)unequal
C)unbalanced
D)balanced
Answer:
d balanced
Explanation:
trust me
GUYS I NEED HELP WITH THIS AS SOON AS POSSIBLE PLEASE ANSWER HERE IS THE QUESTION: (MAKE IT LOWER LEVEL ANSWERS LIKE MIDDLE SCHOOL 7TH GRADE)
Explain why the nitrogen cycle is so vital to the life of all organisms.
(DO NOT LOOK IT UP ON GOOGLE PLEASE SEE SOME ARTICLES AND READ THROUGH WEBSITES DO NOT GET IT FROM GOOGLE)
When plants do not get enough nitrogen, they are unable to produce amino acids (substances that contain nitrogen and hydrogen and make up many of living cells, muscles and tissue). Without amino acids, plants cannot make the special proteins that the plant cells need to grow.
PLEASE GIVE ME AS BRAINLIEST
explain the function of cellulose in a plant cell
Answer:
Cellulose is a molecule, consisting of hundreds – and sometimes even thousands – of carbon, hydrogen and oxygen atoms. Cellulose is the main substance in the walls of plant cells, helping plants to remain stiff and upright. Humans cannot digest cellulose, but it is important in the diet as fibre.
Explanation:
Help
What happens to a spermatid to change it into a sperm cell?
Meiosis occurs, making a cell with n chromosomes.
The nuclei of two polar bodies fuse, making a cell with 2n chromosomes.
A tail is added, making the sperm a motile cell.
A membrane hardens, making the sperm a nonmotile cell.
Answer:
Meiosis occurs, making a cell with n chromosomes.
Explanation:
From Brainly
Answer: The answer is C - Tail is added, making the sperm a motile cell.
Explanation:
Ok im gonna hide a letter right aboutittttttttttttttttttttttttttttttttttttttttttttttttttttttt Now ok go find it
Answer:
Uh. . . i?
Explanation:
Answer:
the i is right after the first "t" ;)
Explanation:
Based on the pressure data shown in the weather map, in which area are you most likely to see clouds and precipitation.
A. C
B. B
C. A
D. D
Answer: it’s c
Explanation: trust me
Answer: it’s a
Explanation:trust me
Are antibiotics always the answer for curing illnesses? * No, viruses and some illnesses cannot be cured with antibiotics. Yes, viruses and some illnesses can be cured with antibiotics. K M
A Paramecium has an internal sucrose concentration of 0.040 M, a glucose concentration of 0.035 M, and a fructose concentration of 0.0050 M. The Paramecium is placed in an aqueous solution that has solute concentrations of 0.025 M for sucrose, glucose, and fructose. Which solutes will diffuse out of the Paramecium?
a. Glucose and fructose
b.Sucrose and fructose
c.Sucrose and glucose
d. Sucrose, glucose, and fructose
Answer:
c. Sucrose and glucose
Explanation:
The paramecium is a large, single-celled microbes, surrounded by a plasma membrane. Simple diffusion occurs in cells across plasma membranes, as a form of passive transport. In diffusion, solutes move from regions of high concentration to regions of low concentration across the plasma membrane.
Here, the internal environment has higher concentrations of sucrose and glucose, but lower concentrations of fructose, thus the solutes will move along their concentration gradient, to where the concentrations are lower. In order for the fructose molecules to move out of the cell, the molecules have to move against their concentration gradient - a process requiring energy known as active transport.
How does the ligand-gated channel for CFTR work?
Answer: Ligand-gated channels require a special “key” to unlock their doors, which usually comes in the form of a small molecule.
CFTR is a ligand-gated channel, but it’s an unusual one. Its “key” is ATP, a small molecule that plays a critical role in the storage and release of energy within cells in the body. In addition to binding the ATP, the CFTR channel must snip a phosphate group – one of three “P’s” – off the ATP molecule to function. But when, where and how often this crucial event takes place has remained obscure.
Which of the following is NOT a condition necessary for fossilization to occur?
A.Rapid and permanent burial
B. Presence of heat
C. Lack of oxygen
D. Continued sediment accumulation
E. Absence of compression
Pick only one.
Answer: E
Explanation:
Answer: B. Presence of heat
Explanation:
What role does a lion play in an ecosystem?
decomposer
producer
predator
prey
Answer:
Predator
Explanation:
It eats other organisms
Answer:
C
Explanation:
Which of the following must occur before DNA replication can take place?
Answer:
Before replication can occur, the length of the DNA double helix about to be copied must be unwound. In addition, the two strands must be separated, much like the two sides of a zipper, by breaking the weak hydrogen bonds that link the paired bases.
Explanation:
have a nice day :)
The length of the DNA double helix that is about to be duplicated must first be unwound before replication can take place.
What is DNA?Additionally, the weak hydrogen bonds between the paired bases must be broken in order to separate the two strands, much like the two sides of a zipper.
Positive sigma, which indicates the percent of supercoiled and wounded DNA, and the same negative sigma, which indicates the percent of DNA that was left unwounded in the presence of isomerase.
Denote the superhelical activity of DNA seen during replication during the absence of topoisomerase and will cause DNA to become more and more wounded and stop the replication process.
Therefore, DNA double helix that is about to be duplicated must first be unraveled before replication.
Learn more about DNA, here:
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Examine the cell structure above. The arrows are pointing to the
and the cells in
A) cleavage furrow, prophase
B) Cleavage furrow, telophase
C) equator, prophase
D) equator, telophase
Explanation:
The answer would be cleavage furrow, prophase because cleavage furrow arrows are when the two daughter cells are dividing and it would be prophase because it includes reduction division
Answer:
A) Cleavage furrow, prophase
Explanation:
In my test this was the right answer.
Page 1 Page 2 Radioactive decay involves the changing of a radioactive atom into another radioactive atom. For example, rocks and minerals may contain potassium-40 that changes into argon-40. Mass spectrometers measure the number of these atoms in a rock or mineral sample. This information and knowing the half-life of potassium-40 can help determine the age of rock layers. The half-life of potassium-40 is 1.3 billion years. The potassium-40 in rocks and minerals will decay through many half-lives until all of them change into argon-40. How many atoms will there most likely be at the third half-life of potassium-40 in this model? A model rock layer had 50 pennies (atoms of potassium-40). How old is the rock layer?
Answer:
13 and 1.3 billion years
Explanation:
Just got it right
Answer:
1. 13
2. 1.3 billion years old
Explanation:
good luck hope you get a 1000000
Photosynthesis must occur for plants to survive. Which of the following best explains why photosynthesis is necessary?
OA. Photosynthesis releases carbon dioxide as a waste product.
OB. Photosynthesis allows plants to use the energy stored in food.
OC. Photosynthesis produces the water that plants need to survive.
OD Photosynthesis produces the food that plants use to grow.
Answer:
the answer is D
Answer:
D
Explanation:
Photosynthesis' whole point is that it makes its own food in order to grow.
The diagram below shows a substance undergoing a phase change. The diagram shows heat being removed from the substance, causing
Answer: Causing it to form a solid as its particles move farther apart OB. to form a liquid as its particles move closer together, oc. it to form a gas as its particles move closer together. OD it to form a liquid as its particles move farther apart.
Explanation:
Answer:
b liquid as they move closer
Explanation:
Please help me ASAP ASAP
DOES ANYONE KNOW THE answers to the 3.25 Mitosis Lab? IF SO PLEASE HELP ME
I need all answers for it please :(
Answer:
see explanation
Explanation:
prophase, the condensation of the chromatin and the disappearance of the nucleolus
metaphase: chromosomes align in the equator of the cell before being separated into each of the two daughter cells.
anaphase: chromosomes are split and the newly-copied chromosomes are moved to opposite poles of the cell.
interphase: G1, S, G2
telophase: nucleoli reappear, and chromosomes begin to come back into the expanded chromatin that is present during interphase.
What happens when soil leaches?
A.) minerals are utilized by plants
B.) minerals wash across the land
C.) minerals stay on top and is picked up by winds
D.) minerals move down downward out of range of plant's roots
Even before modern observations provided evidence that supports the Theory of Plate Tectonics, people developed theories that the continents were once joined together. Using only maps, they observed that -
a
most of the larger land masses are in the Northern Hemisphere.
b
continents with the most moderate climates were located near the Equator.
c
the shapes of continents appeared to allow them to fit together.
d
the oceans have decreased in size throughout the history of Earth.
Answer:
C the shapes of continents appeared to allow them to fit together
Using only maps, people observed that the shapes of continents appeared to allow them to fit together (Option d).
What is continental drift?The continental drift theory is a model to explain why continents are separated and they seem to fit together.
According to this model (continental drift), continents are separated due to their progressive movement in geological time.In conclusion, using only maps, people observed that the shapes of continents appeared to allow them to fit together (Option d).
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How are the equator and the prime meridian used on maps?
to provide a reference system
to separate Earth’s four hemispheres
to measure distances east and west
to identify the location of Earth’s continents
Answer:
A- to provide a reference system
Explanation:
The equator and prim meridian used on maps provides a reference system for determining location and navigating the earth.
An equator is the only line of latitude that is a great circle.
Prime meridian is a line of longitude that is 0°
When both are used, they can form the basis of a reference system to determine places on earth.
Using these lines, we can assign values of coordinates to the earth surface to facilitate location determination.
The equator and prime meridian are used on maps to provide a reference system.
The equator and the prime meridian used on maps to provide a reference system. Thus, option A is correct.
What is the use of equator and prim meridian?The equator and prim meridian used on maps provides a reference system for determining location and navigating the earth. An equator is the only line of latitude that is a great circle. Prime meridian is a line of longitude that is 0°.
When both are used, they can form the basis of a reference system to determine places on earth. Using these lines, we can assign values of coordinates to the earth surface to facilitate location determination. The equator and prime meridian are used on maps to provide a reference system.
Therefore, When both are used, they can form the basis of a reference system to determine places on earth. The equator and the prime meridian used on maps to provide a reference system. Thus, option A is correct.
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Please help ASAP
How can a ‘FIXED’ cell be used to estimate the time spent in each phase of mitosis. Explain the process you used to determine the times for each phase.
Answer:
Calculate the percentage of time spent in each phase by counting the total number of cells in each phase (total in interphase, in prophase, etc.) ... Multiply the percentage of time in each phase by the total time of the cell cycle (720 minutes) and this gives you an estimate of the time spent in each phase.
Explanation:
Aldosterone is a hormone secreted by the adrenal gland that activates the receptor protein to turn on genes that control water and sodium flow in kidney cells. The kidney cells contain receptor cells
with mutations. How will this impact the cellular response?
A. The aldosterone signaling molecule will also become mutated.
B. The aldosterone signaling molecule will conform to bind to the receptor cells.
C.The downstream components will be altered and ultimately affect blood volume.
D. The downstream components will function as usual, even if the receptor protein is not activated.
Pls help soon!!
Answer:
The correct option is C
Explanation:
Since the receptor cells is mutated, the adrenal gland might (depending on the type of mutation) no longer be able to activate the receptor protein which will affect water and sodium flow in the kidney cells. Thus, the flow of the downstream components (water and sodium) will be altered in the kidney which will ultimately affect the blood's volume.
Skin is the largest organ in your body. As a part of the excretory system it excretes waste through
in the skin. A. Lungs b. An anus c. Sweat glands d. Lymph nodes
Answer:
Its B
Explanation:
I chose C and got it wrong, the answer was B