Given parameters:
Mass of rock Tobias found = 475kg
Volume of initial water = 2000mL
New volume = 2025mL
Unknown:
Density = ?
Solution:
Density is the mass per unit volume of a substance.
Mathematically;
Density = [tex]\frac{mass}{volume}[/tex]
Volume of rock = New volume - Initial volume = 2025 - 2000 = 25mL
Now let us convert the mass to g;
1000g = 1kg
So; 475kg will be 475000g
So;
Density of stone = [tex]\frac{475000}{25}[/tex] = 19000g/mL or 19000g/cm³
Which of the following does not lead to an increase in phytoplankton reproduction?
a.
increased nutrient availability
b.
increased sunlight
c.
increased oxygen levels
d.
increased levels of carbon dioxide
Please select the best answer from the choices provided
A
B
C
D
Answer:
C. increased oxygen levels
Explanation:
edge 2020
Which of the following is an example of diffusion?
A water freezing into ice
B sugar dissolving in a glass of water
C rain falling from the sky
D a stone sinking to the bottom of a lake
Please help ASAP! I’ll mark you brainly
2. Light is captured using__________
the absorbed light is passed along
throughout molecules
and pigments until it is transferred to a single__________.
Answer:
1st: pigments 2nd: molocule
Explanation:
What is the ratio of hydrogen and oxygen in all carbohydrates when compare to carbon ____hydrogen: _____oxygen
Can anyone tell me this ?
Answer:
n(C1H2O1)
Explanation:
Think of glucose, which is C6H12O6. In the case of glucose, n would be 6.
Why do you think catalase has to work so quickly?
Answer:
Hydrogen peroxide is toxic.
Explanation:
Hydrogen peroxide is a natural product of the reactions in the cell. However, it is toxic to cells and has to be broken down.
Catalase catalyses the breakdown of hydrogen peroxide into water and oxygen. It is found in all living cells and is very important to prevent the build up of hydrogen peroxide. If catalase didn't work quickly, hydrogen peroxide would accumulate in the cell and poison it, causing the cell to die.
Vaccination is a process of injecting a dead or weakened form of a pathogen into the body. How does this help strengthen the immune system?
Answer:
Explanation:
the immune system gets to see how the weakened disease reacts and what are its strengths.
Answer:
C. It allows the body to keep pathogen information for future infections.
Explanation:
A vaccine helps develop anti bodies inside the immune system to fight off future infections or diseases
a chain of volcanoes that develop parallel to a trench
Answer:
Offshore volcanoes form islands, resulting in a volcanic island arc. Generally, volcanic arcs result from the subduction of an oceanic tectonic plate under another tectonic plate, and often parallel an oceanic trench.
Explanation:
Which of the following best describes giant stars? A. hot, dim stars B. cool,dim stars C. hot ,bright stars D. cool, bright stars
Answer:
C hot bright stars
Explanation:
they are literally hot burning balls of bright gas
Answer:
It is the answer C
:)
How many time can you revive?
Answer:
0
we are not cats
which homeostasis mechanism is the plant version of an animal drinking when it gets thirsty?
A ) a plant wilting when soil dries out
B ) a plant making sugar through photosynthesis
C ) a plant's growth response toward light
D )a plant's growth response to gravitation
Please help I’ll cashapp and mark brainless
Answer:
d.
Explanation:
Making observations. :)
Answer:
b. testing hypothesis
Explanation:
what do you test in history and art, nothing
In subduction, what determines which plate will be on top and which will be on bottom?
Which of the following is not a current theory regarding global climate change? a. Global warming will stimulate crop growth. b. Even the moderate projections on global warming will cause devastation. c. Higher levels of carbon dioxide in the atmosphere will have no effect. d. Sea levels will rise as a result of global warming.
Please select the best answer from the choices provided A B C D
Answer:
c
Explanation:just took the test
Flooding has the potential to spread illness and harm infrastructure and ecosystems. Health problems can reduce worker productivity, raise mortality, and have an impact on the availability of food. Thus, option C is correct.
What is impact of global climate change on ecosystem?Droughts that are more frequent and intense, storms, heat waves, rising sea levels, melting glaciers, and warming oceans can all directly harm animals.
Destroy the habitats they rely on for survival, and have a disastrous impact on people's way of life and communities. Dangerous weather events are increasing in frequency or severity as climate change gets worse.
Therefore, Higher levels of carbon dioxide in the atmosphere will have no effect. Food production and human health can be harmed by drought.
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True or false? An ecosystem includes all living things (producers, consumers, decomposers) in an area and their nonliving environment
Answer:
True
Explanation:
Answer:true
Explanation:
acer saccharum scientific name for the sugar maple tree acer is the name of the trees?
A.genus
B.phylum
C.species
D.kingdom
Interpret each rule of Kartilya ng Katipunan in one word
Answer:
Throughout the clarification category below, the definition including its query is mentioned.
Explanation:
The Kartilya ng Katipunan acted as either the reference book or field guide for the organization's new representatives, which set out other principles and expectations including its party. Emilio Jacinto published the first version of Kautilya. The revamped Decalogue was later published by Andrés Bonifacio. It would never be released although Bonifacio thought that Kartilya of Jacinto seemed equivalent to what he has already created.The sodium-potassium pump is a specialized type of transport protein found in your cell membranes. The pump's
job is to move potassium ions into the cell in
the direction of low to high concentration. In order for this to happen, the cell uses energy
to operate the pump. This is an important step in the function of our
nerve cells. What type of transport does the sodium-potassium pump use?
A. Diffusion
B. Active Transport,
C. osmosis
D. Passive Transport
Answer:
Active Transport
Explanation:
Active Transport requires energy input
Capillary action occurs because
A.surface tension is low.
B.adhesive forces are greater than cohesive forces.
C.surface tension is high.
D.cohesive forces are greater than adhesive forces.
E.adhesive forces equal adhesive forces.
PLEASE EXPLAIN !!!!
Option B : adhesive forces are greater than cohesive forces.
Explanation:-
Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules.
Tell me a description of the urea in simple terms.
Answer:
Urea: A nitrogen-containing substance normally cleared from the blood by the kidney into the urine. Diseases that compromise the function of the kidney often lead to increased blood levels of urea, as measured by the blood urea nitrogen (BUN) test.
How many atoms of oxygen are in the formula for 2 hydrogen peroxide? 2H202
Answer:
The mass of hydrogen peroxide, H2O2 would be calculated like this: H2O2 has 2 hydrogen atoms and 2 oxygen atoms in it. So one molecule of hydrogen peroxide weighs in at 34.02 u.
Explanation:
pretty self explanatory.
MRSA is Methicillin Resistant Staphylococcus Aureus. Methicillin used to be nicknamed "gorilla-cillin". Which of the following statements is likely true of MRSA INFECTIONS IN HUMANS?
1. Methicillin is not a good antibiotic to use on this type of infection
2. MRSA is a common infection that is treated by methicillin
3. MRSA originally evolved in gorillas as a zoonotic disease
4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat
Answer:
4. Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.
Explanation:
MRSA was first discovered in 1961. It's now resistant to methicillin, amoxicillin, penicillin, oxacillin, and other common antibiotics known as cephalosporins.
Answer:
Option 4) Methicillin is a strong antibiotic and MRSA developed resistance to it, making it harder to treat.
How are cells related to organs ?
What are some questions that scientists on Earth might study? Choose all that apply.
A. How Weather & Climate systems affect Earth?
B. How can Earthquake be detected?
C. How does light travels through optical fibers?
D. Is water found on other planets?
Answer:
A,B,C
Explanation:
It won't be D. because you would need to study or go to the other planets to answer the question.
Hope this helps!
Muscles can contract because they are made of
-afferent neurons
-efferent neurons
-interneurons
-connector neurons
-glial cells
Answer:
effererent neurons signal muscles to contract
Muscles can contract because they are made of efferent neurons.
What are the types of neuron ?Neurons basic microscopic unit of nervous system which is responsible for carrying information to different parts of the body by using electrical and chemical signals and coordinate all of the necessary functions of life.
It has three parts such as Soma or cell body which receives information and contain the cell’s nucleus, Dendrites a thin filament which carry the information from other neurons to the soma, Axon is a long projection that carries information from the soma and sends it to other cells.
Neurons involve in impulse transmission can be presynaptic neuron which emits the nerve impulse and the postsynaptic neuron receives this impulse.
Neurons can be Sensory neurons which carry the information from the sensory organs like skin, eyes, ears, nose and Motor neurons, Interneurons form a bridge between two neurons.
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Fireflies emit light. The production of light by an organism is called bioluminescence. To generate visible light, cells in a firefly's tail produce thousands of luciferase enzymes. Luciferase binds to a chemical called luciferin. Once bound, the luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule and luciferin to produce oxyluciferin. This reaction requires energy and releases light. Which of the following best describes how the luciferase enzyme speeds up the chemical reaction? F Luciferase increases the amount of time the light is visible. G Luciferase decreases the amount of energy required for the reaction to start. H Luciferase increases the number of sites on luciferin that must bind to oxygen. J Luciferase decreases the temperature of the environment inside the body of the firefly.
Answer:
Fireflies emit light. The production of light by an organism is called bioluminescence. To generate visible light, cells in a firefly's tail produce thousands of luciferase enzymes. Luciferase binds to a chemical called luciferin. Once bound, the luciferase enzyme speeds up a chemical reaction that combines an oxygen molecule and luciferin to produce oxyluciferin. This reaction requires energy and releases light. Which of the following best describes how the luciferase enzyme speeds up the chemical reaction?
Explanation:
b
The description that best describes how the luciferase enzyme speeds up the chemical reaction is - Luciferase decreases the amount of energy required for the reaction to start.
Fireflies generate a chemical reaction that allows their body to emit light, inside their body. This light generation is called bioluminescence. This process involves various steps:
Oxygen binds with calcium, luciferin chemical with ATP to make oxyluciferin.In the body of fireflies, there is the production of an enzyme called luciferase.This chemical reaction takes place in presence of luciferase that speeds up this reaction by decreasing the activation energy of the reaction.At the end of the reaction body of fireflies light up.Thus, the correct answer is - Luciferase decreases the amount of energy required for the reaction to start.
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Do you think a magnitude 9.0 earthquake will generate a tsunami?
Which of the following elements is required for growth and development and is in our DNA? *
hydrogen
carbon
oxygen
nitrogen
phosphorus
PLEASE HELP
Answer:
Carbon hydrogen oxygen nitrogen
Explanation:
Phosphorus is also essential all these are essential for growth and our present in our DNA
A membrane that allows some molecules to pass through but not others is called a(n)_____ _____ _____
has a selection function so it selects the substances which to enter or not inside the cell
what are the number of birds in the world.
Explanation:
The number is up to 200 to 400 billion individual birds.
I am making a dating profile for a Ribosomes and a I need a pick-up line, a hashtag, a bio, and a theme song.
ASAP, please and thank you. Also I need info on functions on how to keep the organelle alive and healthy and any bad habits. It has to be true facts but also be fun and cool ! the organelle healthy
I NEED IT ASAP PLLLLSSSSSSSSS, answer all pls
Answer:
You: Hey how you?
Her: Good
You: sorry I can’t call you beautiful
Her:y
You: they say true beauty is on the inside and I in been snide before
Her:
You: can I get your number?