Answer:
it's really simple, all you need to do is look at the periodic table. for example, group 1A has 1 valence electron. 2A has 2, 3A has 3, and so on.
A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its velocity is 4 m/s. But 6 seconds later, at the bottom of the slope, its velocity is 46 m/s. What is its average acceleration
Hurry
Answer:
i think the answer is -7
Explanation:
4 - 46 = -42 -42\6 is -7 i dont know if its right
What is science responsible for?
O technological evolution
O technological revolutions
O tragical revolutions
Who knows anything about anesthesiology??? I'm in the 9th grade, but I think that's what I want to do when I get older.
the branch of medicine concerned with anesthesia and anesthetics
Answer:
Its the doctor thats puts patients to sleep
Explanation:
Brainliest?
what is an example of a catalyst?
Answer potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas.
Explanation:
Answer:
They include elemental metals and other inorganic substances. ... Examples of inorganic catalysts in chemical reactions include: potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas. Two molecules of hydrogen peroxide will produce two molecules of water and one molecule of oxygen.
Explanation:
Hope It helps u
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I heard that Bloodtype O is strong to the malaria virus. Can someone tell me why is that? I need direct sources for the information. Thank you.
Answer:
With neither A or B antigens, this blood group has different receptors on its red blood cells, and these are not as easily taken over by malaria. "Hence, rosettes formed in blood group O [red blood cells] tend to be smaller, weaker and more unstable," the authors write in the new review
Explanation:
what is a biotic factor that affects population size A. weather B. human impact C. avaliable sunlight D. Trash consumption
Answer:
sunlight
Explanation:
im not sure but i think.
Which statement below best describes the purpose of meiosis in creating gametes?
The purpose of meiosis is to produce gametes, or sex cells. During meiosis, four daughter cells are produced, each of which are haploid (containing half as many chromosomes as the parent cell).
The purpose of meiosis is to create gametes. Thus, it reduces the number of chromosomes to half.
What is meiosis?In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).
The egg and sperm that combine during fertilization must be haploid or have only one pair of chromosomes, in order to sustain this state. Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are gametes.
In humans, autosome cells contain 46 chromosomes, while gametes contain 23 chromosomes. Hence, the main purpose of meiosis is to divide the genetic material in half.
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please help me out will mark brainly
Answer:
5. c. active transport of molecules across a membrane
6. b. osmosis
7. d. water entered the cells of the lettuce by osmosis
Explanation:
5. The diffusion of water does not involve the budding of the cell membrane. The production of proteins amino acids and asexual reproduction are unrelated to the movement of molecules across the cell membrane. Therefore, this is active transport of molecules across a membrane.
6. The diffusion of water from a high concentration to a low concentration of water across a selectively permeable membrane is called osmosis. Transpiration is the process by which water leaves plant cells. Active transport requires energy. Capillary action is when water moves as a result of adhesion/cohesion.
7. When water enters the cells by osmosis, the cells become more turgid, making the lettuce crisp.
Would the genes for lactase be turned on or off after eating cheese?
Answer: On
Explanation: Lactase helps you digest lactose so it would be turned on after eating cheese.
what are the cause of forest fires only one
Answer:
Humans :(
Explanation:
One of the largest causes of forest fires are humans. Either by neglecting campfires, throwing cigarette butts, or arson. Or gender reveal parties lol.
all cells arise from pre-existing cells.
true or false ?
A sequence of nucleotides in a DNA or RNA molecular is What?
Answer:
nucleic acid sequence
Explanation:
1 po
happens in microorganisms such as bacteria because
they need to release energy from glucose too.
Anaerobic respiration
O Aerobic respiration
Oxygen
O ATP
Answer:
Anaerobic respiration
Explanation:
Bacteria can perform both aerobic and anaerobic respiration. They perform aerobic respiration when oxygen is present. They perform anaerobic respiration in the absence of oxygen.
These processes breakdown glucose to generate ATP to power cellular processes.
hi pls help if u can,, will mark brainliest
1. How many food chains make up the food web?
2. Which organism is an herbivore?
3. Which organism is an autotroph?
4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?
5. Which organism is an omnivore?
6. Which organisms belong to more than one food chain?
7. Which organism belongs to more than one trophic level?
8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?
9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?
10. Why do different trophic levels have different amounts of energy?
Answer:
1. 3
2. insects
3. plants
4. snakes the 4th
5. birds
6.plant, bird, insect, snake
7. birds
8. Decomposers are organisms (bacteria and fungi) that break down dead organisms. They could be at all trophic levels
9. pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid of biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms.
10. energy is lost at each level. Most of the energy lost is lost as heat. Food webs and food chains both involve multiple trophic levels.
Forests are considered nonrenewable resources primarily because of the.
Choose the correct answer.
a. difficulty in engineering wood alternatives
b. challenge to harvest fibers from other plants
c. demand for wood in a wide variety of products
d. decreased need for wood products in manufacturing
Answer:
c
Explanation:
we use wood faster then the trees can grow
Answer:
c. demand for wood in a wide variety of products.
What’s the answer? Fastest gets brainliest if it works!
Answer:
b) Water
Explanation:
Cellular respiration or aerobic respiration is a series of chemical reactions which begin with the reactants of sugar in the presence of oxygen to produce carbon dioxide and water as waste products.
Which statements accurately describe osmosis? Check all that apply.
Water moves from areas of high concentration to areas of low concentration.
Water moves from areas of low concentration to areas of high concentration.
Too much water in a cell can cause it to shrink.
Too much water in a cell can cause it to swell.
Too little water in a cell can cause it to shrink.
Too little water in a cell can cause it to swell.
Answer:
- water moves from areas of high concentration to low concentration.
- too much water can cause it to swell
- too little water can cause it to shrink
Explanation:
If in any organism a DNA molecule is 22% guanine, how much adenine will that DNA molecule contain?
Answer:
22% they play off of each other
during diffusion,how do the molecules physically get from one place to the other?(spaceship tractor beam? wiged monkeys?)
Classify each type of cell transport.
Answer:
Diffusion is a passive process of transport.
Endocytosis is a type of active transport
exocytosis are active transport processes.
osmosis a form or passive transport
Facilitated diffusion is a type of passive transport
Hope this helps!!!!
Classifying each type of cell transport :
Diffusion : Passive transport Endocytosis : Active transportExocytosis : Active transportFacilitated diffusion : Passive transport Osmosis : Passive transportA passive transport system is the movement of solute in solution across regions of different electrochemical potentials on either side of a cell membrane ( i.e. from higher concentration to lower concentration) examples include : diffusion, osmosis and facilitated diffusion. while
Active transport system is the movement of molecules across a cell membrane by the application of cellular energy and not the difference in electrochemical potential. examples include Endocytosis and exocytosis
Hence we can conclude that Classifying each type of cell transport :Diffusion ; Passive transport. Endocytosis : Active transport. Exocytosis : Active transport. Facilitated diffusion : Passive transport. Osmosis : Passive transport .
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How are the health impacts of surface mining different from those of underground mining?
1. higher risk of mine collapse in surface mining
2. higher risk of lung disease in surface mining
3. Lower risk of hearing loss and surface my mining
4. Lower risk of minor injuries and service my mining
Answer:
4. Lower risk of minor injuries and service my mining
Explanation:
There is lower risk of minor injuries in surface mining because in surface mining the mine workers work in the open air as compared to underground mining. In underground mining there is a high risk of mine collapse which results in the death of the mine workers. There is risk of injuries in surface mining such as hearing loss because of high noise of the mining machines.
The impact on health of surface should be option 4. Lower risk of minor injuries and service my mining
Impact on health:There should be less risk of minor injuries in surface mining since in the case of surface mining the mineworkers work in the open air than underground mining. Since in underground mining there is a high risk of a mine collapse that leads in the death of the mineworkers.
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A toy car accelerates 1.25 m/s2 when a child pushes it with a force of 0.1 newtons. What is the mass of
the car?
Answer:
0.089
Explanation:
The formula to solve for mass is:
m=F/a
So, The force is 0.1, and the acceleration is 1.25^2.
First you must square 1.25, which will give you 1.12 ( I rounded).
Now, we have 0.1/1.12, which equals 0.089, or 0.09.
I really hope this helps.
Plssssss this was supposed to be done Friday can u pls help me
a)Based on the permanent number of metal or non-metal we can find the valence of the other element .Also based on where in the group or column is placed metal or non-metal.
b) - (i dont know now )
Predict whether these concentrations would increase , decrease or stay the same if ammonia nitrifying bacteria
Answer:decrease, increase, stay the same in that order
Explanation:
63.5 cm
23 cm
43 cm
Calculate Find the volume of the suitcase
Answer:
the volume 62801.5 cm
Explanation:
dont forget the formula for volume of a rectangular prism is v = LWH
How do organisms survive in harsh or changing environments?
Answer:
organisms evolve in order to better equip them to survive in their environment
Explanation:
for example, polar bears have white fur so they can blend into their environment.
Which one of the following components is responsible for the clotting of blood? Select one: O a plasma O b. leukocytes O c. hemoglobin O d. thrombocytes
Answer:
D. thrombocytes
Explanation:
The main function of thrombocytes is to stop the bleeding of injured blood vessels. In mammals, thrombocytes are anucleated cell fragments called platelets.
Thrombocytes is responsible for the clotting of blood.
What are thrombocytes?
The microscopic blood cells known as platelets, or thrombocytes, aid in blood coagulation. Your body naturally stops bleeding with platelets.
Plasma, red, white, and platelet-containing blood cells make up whole blood. Platelets, the lightest component of whole blood, are pushed to the walls of your blood vessels because they are the heaviest part of the blood.
This allows plasma and blood cells to flow through the center, allowing platelets to reach injury rapidly to stop bleeding.
Therefore, Thrombocytes is responsible for the clotting of blood.
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Jaime and Ryan first noticed that something was wrong with their newborn baby about four months after birth. Their baby seemed to be having difficulty holding her head up. After a series of tests, it was noticed that fatty acids were not being digested by the cells and were accumulating on the child's nerve cells. Which organelle is not properly functioning in the cells of Jaime and Ryan's newborn baby?
Answer:
Liver
Explanation:
The liver is an organelle in the human body that is responsible for the digestion of fat. Liver produces bile, a digestive juice that helps in the digestion of fats and vitamins. Bile juice is stored in the gall bladder and move into the small intestine for the digestion of fat.
As per the details in the question, a newborn baby is unable to digest fat which is affecting the child's nerve cells. It means the newborn baby's liver is not functioning properly and not making bile juice that can digest the fat properly.
Hence, the correct answer is "Liver".
Hail starts as liquid water and then is swept up and down in the clouds, building
many solid layers before it falls to Earth.
True
False
Answer:
It will be true.
Explanation:
N/A
Answer:
true
Explanation:
hail is a firm if solid precipitation.
during what part of the cell cycle will you find the highest amount of DNA?