Answer: Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
Explanation:
Cell organizations^ pls help
Answer:
Multicellular organisms have cells that are organized in specific ways to perform specialized functions. From the most complex level to the simplest level, the five levels of organization for the sheep should be ordered as:
whole organism → organ system → organ → tissue→ cell
Explanation:
Explain how Newton’s cradle demonstrates the law of conservation of energy.
1. What is the mass of zinc in your penny?
Answer:
97.5%
Explanation:
the US mint specifies pennies as 2.5% copper in 97.5% zinc
PLEASE HELP ME ILL GIVE BRAINLIEST
Answer:
TRUE :)
Explanation:
blood is pumped through the pulmonary artery to the lungs, where it picks up oxygen and releases carbon dioxide.
Answer:
False
Explanation:
it takes it to tha lungs.
A 100 kg rock is broken into five smaller rocks for a garden. What is the total mass of all five smaller rocks?
Answer:
100 kg
Explanation:
you cannot destory mass so, it's going to be the same just broken up pieces
Which of these is not a response to internal stimuli?
A. wearing sunglasses to to protect eyes from UV rays
B. breathing hard when exercising because of a drop in oxygen levels
C. eating when hungry
D. drinking when thirsty
Answer:
A. wearing sunglasses to to protect eyes from UV rays
Explanation:
Your eyes are outside of your body, meaning external. All the other choices deal with internal organs.
which one is you fav one
Answer:
the 3rd one
Explanation:
What do all of the inventors discussed in this lesson have in common?
1. All of the inventors can be characterized as problem-solvers.
2. All of the inventors used engineering principles to create new things.
3. All of the inventors created new things as children.
4. All of the inventors needed mathematics principles to formulate solutions.
PLEASE I NEED helppp
The objects potential energy at point Y is less its potential energy at which of the following points
Answer:
C
Explanation:
increase potential energy ( in motion)
what is the amount of molecules in 5 moles of nitrogen gas, N2?
The amount of molecules= 3.01 x 10²⁴
Further explanationGiven
5 moles of N2
Required
The number of molecules
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
For 5 moles :
= 5 x 6.02 x 10²³
= 3.01 x 10²⁴
Prokaryotes store their DNA in a nucleus.
True
or false
how many moles are in 1.2 x 10^26 molecules of calcium hydroxide
Answer:
199.26 or with sig figs 2.0 x 10^2
Explanation: you take the # of molecules and divide it by avagadros number which is 6.022141 x 10^23
How many moles of NaCl are in 2.35 liters of a 4.67 M solution?
There are 10.97 moles of NaCl in 2.35 liters of a 4.67 M solution.
HOW TO CALCULATE NUMBER OF MOLES:The number of moles of a substance can be calculated by multiplying the molarity by the volume. That is;no. of moles = volume × molarity
According to this question, there are 2.35 liters of a 4.67 M solution. The number of moles is calculated as follows:no of moles = 2.35L × 4.67M
no of moles = 10.97mol
Therefore, there are 10.97 moles of NaCl in 2.35 liters of a 4.67 M solution.
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whoever answers first will get brainliest! this is times so pls help!
You are titrating a 125 mL sample of KOH solution; the pH meter reads 7.00 after the addition of 84.7 mL of 0.750 M HNO3.
What is the concentration of the KOH solution?
A. 0.125 M KOH
B.0.750 M KOH
C.0.508 M KOH
D. 0.0635 M KOH
thanks so much!
protons are one of the heavier pieces of an atom. true or false?
Answer:
true
Explanation:
Something that is made out of natural resources for human use is called? Synthetic Resource Natural Resource Materials Living Organisims
Answer:
Natural Resource
Explanation:
A natrual resource is something that was created when Earth was first made. They were intended to fulfill human needs when they needed them. An example of a natural resource can be water, because we will need water to survive.
Which of these is NOT a science and engineering practice?
asking questions
opinion and factless ideas
analyzing and interpreting data
obtaining, evaluating, and communicating information
Opinion and and factless ideas are not science and engineering practice as these are based on observations.
What are observations?
Observations are defined as a set of statements or facts which are recorded while conducting an experiment.Observations are made through sensing changes in the variables of the experiment.
It is specifically defined as an act of knowing or recording the changes in the variables of the experiment.Recording observations holds importance as recording observations avoid the experiment to be repeated over and over again.
It is important to note down observations so that the testing of hypothesis is made easier.There are four types of observations .Observations need to be descriptive and must be written in complete sentences and should include all the numerical data of the experiment.
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why do plants provide animals with fruit such as strawberries, apples, and mangoes
Answer:
to increase their number of species on the Earth and want to go long and long
please help thank you
why might genetically identical twins have different phenotype
Answer:
They may have different phenotypes because of differences in their environments, such as nutrition and healthcare. Why might genetically identical twins have different phenotypes? Any genes on the same chromosome could be linked genes, whereas only genes on sex chromosomes can be sex-linked genes.
Explanation:
Due to the effects of the environment, genetically identical twins might have different phenotype.
What is phenotype?The qualities or visible characteristics of an organism are its phenotype. It depends on how the environment and the genotype, or genetic code, of the organism interact.
Although human monozygotic twins as well as other genetically identical species may share startling physical similarities, they frequently differ in key characteristics, such as complicated diseases. The effects of the environment have generally been blamed for this variance across organisms with essentially identical chromosomal DNA sequences.
Therefore, due to the effects of the environment, genetically identical twins might have different phenotype.
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How many orbitals exist for s shape
What element is added to copper to make bronze? Why is this important for making bells?
Answer:
The correct answer is - tin.
Explanation:
Tin is the element that is mixed with copper to make bronze as bronze has many unique properties such as crisp sound quality and hardness. The hardness of the bronze allows them to make a good quality sound is come by adding tin to copper restricts the free flow of electrons of the copper atoms.
The pure metals have molecules present in an orderly manner and allow the electrons to free flow. This is why bell makers use bronze as it does not allow electrons to move freely which makes it hard and makes a good sound.
How many moles of nitrogen (N2) are needed to produce 9.60x10^24 molecules
of nitrogen dioxide (NO2)? *
The number of moles of Nitrogen : == 7.975
Further explanationGiven
9.60x10²⁴ molecules of nitrogen dioxide (NO2)
Required
The number of moles
Solution
Reaction
N2 + 2O2 → 2NO2
moles of NO2 :
= 9.6 x 10²⁴ : 6.02 x 10²³
= 15.95
From the equation, mol N2 :
= 1/2 x mol NO2
= 1/2 x 15.95
= 7.975
The number of molecules :
= 8 x 6.02 x 10²³
= 4.816 x 10²⁴
PLS HELP ASAP! I WILL GIVE BRAINLIEST!! Which of the following explains the conservation of mass during cellular respiration? (4 points)
a The total number of atoms when carbon dioxide and oxygen react stays the same when glucose and water are produced.
b The total number of atoms when water and oxygen react stays the same when glucose and water are produced.
c The total number of atoms when carbon dioxide and water react stays the same when glucose and oxygen are produced.
d The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced.
Answer:
jayfeather friend me ccccccc
Explanation:
is: cellular respiration creates an energy molecule when glucose is broken down.
Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are simply rearranged from the reactants to the products.
Dana is playing with her friends. They ride their scooters 20 meters down the road North. They stop to grab a drink of water. Feeling tired, they turn around and ride their scooters 20 meters south
What is Dana and her friend’s displacement
Answer:
what is the displacement
Explanation:
The answers plzzzzzzz
Answer:
ok, whats the question
Explanation:
can sum1 help me ????
Answer:
The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. hope that helps
Explanation:
A=top
B=middle
C=bottom
By February of 1861, how many states seceded from the Union?
5
11
9
7
Answer:
D. 7
Explanation:
i did it
Can someone help? I don’t understand at all
Na = 2 atoms
Cl = 2atoms
F = 2 atoms
Further explanationGiven
Skeleton equation(unbalanced equation) :
NaCl+F2⇒NaF+Cl2
Required
The number of atoms
Solution
We balance the reactions to find the reaction coefficient, which is then used to calculate the number of atoms in the reactants and products
Balanced equation
2NaCl + F2 → 2NaF + Cl2
A balanced reaction will show that the number of atoms in the reactants and products is the same
Reactants :Na = 2 atoms
Cl = 2atoms
F = 2 atoms
Products :Na = 2 atoms
F = 2 atoms
Cl = 2 atoms
heat alwais moves from ____ to _____.
Answer: left to right
Explanation:
