Answer:
The mass number (symbol A, from the German word Atomgewicht [atomic weight]),[1] also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in atomic mass units. Since protons and neutrons are both baryons, the mass number A is identical with the baryon number B as of the nucleus as of the whole atom or ion. The mass number is different for each different isotope of a chemical element. Hence, the difference between the mass number and the atomic number Z gives the number of neutrons (N) in a given nucleus: N = A − Z.[2]
The mass number is written either after the element name or as a superscript to the left of an element's symbol. For example, the most common isotope of carbon is carbon-12, or 12
C
, which has 6 protons and 6 neutrons. The full isotope symbol would also have the atomic number (Z) as a subscript to the left of the element symbol directly below the mass number: 12
6C
.[3]
An example of human systems that work together to provide nutrients for the cells and tissues is
A. digestive system and nervous system
B. circulatory system and nervous system
C. circulatory system and digestive sytem
D. nervous system and urinary system
Answer:
The answer is C
1. What is an enzyme?
2. What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/oil?
Do streams have high or low biodiversity
Answer:
High
Explanation:
Show the Work.
Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas
v1 = 0.25 m / t1, and
v2 = 0.25 m / (t2 – t1)
where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.
What is the first velocity of the car with two washers at the 0.25 meter mark?
m/s
What is the second velocity of the car with two washers at the 0.50 meter mark?
m/s
(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.
(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.
What is velocity?Velocity is the rate of change of displacement with time. The velocity of the cars depends on displacement and time of motion.
First velocity of the car at the 0.25 meter markThe first velocity is calculated as follows;
v1 = 0.25 m / t1
let t₁ = 2 s
v₁ = 0.25/2
v₁ = 0.125 m/s
Second velocity of the car at the 0.5 meter markv2 = 0.25 m / (t2 – t1)
let t₂ = 3 s
v₂ = 0.25(3 - 2)
v₂ = 0.25 m/s
Learn more about velocity here: https://brainly.com/question/6504879
Answer:
What is the first velocity of the car with one washer at the 0.25 meter mark?
1st = 0.11 m/s
2nd = 0.13 m/s
3rd = 0.19 m/s
What is the second velocity of the car with one washer at the 0.50 meter mark?
1st = 0.28 m/s
2nd = 0.36 m/s
3rd = 0.45 m/s
Explanation:
trust
decrease 120 by 15%
Option (a) 77
(b) 87
(c) 92
(d) 95
(e) 102
Plz answer
Answer:
its e (102)
Explanation:
so, 120*15/100
Cancelling the zeros!
so,
12*15/10
= 6*15/5
=6*3/1
First we have to find 15% of 120
=6*3
=18
So, 15% of 120 is 18
now decreasing it from 120
120-18
=102
SO THE OPTION (e) IS CORRECT
Why is the sky blue? I know it’s a generic question but I honestly don’t know
Answer:
As sunlight passes through the atmosphere, particles in the air scatter blue light more efficiently than any other color in the light spectrum, creating a blue sky.
Explanation:
The prefix thermo- comes from the Greek word thermos which means “warm or hot.” How does this meaning relate to the definition of thermogram?
Thermogram is is a word that derived from thermo and gram. Thermos means warm or hot and gram means record associated with warmness.
What do you mean by Warm or hot?Warm or hot may be defined as the words that usually describe the high temperature of any objects or things.
Thermogram is a word that means a photographic record made by thermography which is the process of using an infrared camera.
Therefore, it is well described the meaning of thermogram.
To learn more about Thermograms, refer to the link:
https://brainly.com/question/10501228
Which of the following animals is raised on prairie land today?
sheep
owls
bison
deer
Answer:
The following animal that is raised on prairie land today I believe is the bison :)
The animal that is raised on prairie land today is sheep. The correct option is A.
What is prairie land?Large expanses of grassland that are level or undulating are known as prairies.
These grasslands can be found in Minnesota in a variety of habitats, including shortgrass prairies perched high on the bluffs of the Minnesota River, enormous fields of big bluestem up to 8 feet tall, and sparsely vegetated sand dunes.
The Great Plains are made up of the Canadian provinces of Alberta, Manitoba, and Saskatchewan as well as the American states of North Dakota, South Dakota, Montana, Nebraska, Kansas, Oklahoma, Texas, Wyoming, Colorado, and New Mexico.
Sheep are currently the animal raised on prairie terrain. Millions of prairie dogs and thousands of bighorn sheep were nourished by vast, uninterrupted horizons of continuous grasslands.
Additionally plentiful were the birds, which included more than 3 billion passenger pigeons, various grouse species, and greater prairie chickens.
Thus, the correct option is A.
For more details regarding prairie land, visit:
https://brainly.com/question/11316495
#SPJ2
what is the full form of UV rays?
Answer:
UV radiation: Ultraviolet radiation. Invisible rays that are part of the energy that comes from the sun, can burn the skin, and cause skin cancer. UV radiation is made up of three types of rays -- ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC).
Explanation:
Which food would be helpful in increasing fiber and regularly clearing the digestive tract?
1. oranges
2. broccoli
3. ginger
4. mint
Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
What is food?Food is any substances that is consumed by a person and it releases one nutrients or the other and supplies energy to the body, build muscles, fight against diseases,renew strength, , aid metabolism and essential living of a man.
Therefore, Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.
Learn more about food below.
https://brainly.com/question/25884013
#SPJ2
Almost all of the food we eat is sold fresh.
a. True
b. False
Answer: most definitely false
Explanation:most definitely false
The first to get the answer correct get a brainlest
What is the butterfly effect
. Most of the mass of any living thing is ______________.
Answer:Of these, 25 are found in living things. As you can see in the pie graph at the left, about 97 percent of your body's mass consists of just four major elements— oxygen, carbon, hydrogen, and nitrogen. The six most common elements in living things are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
Explanation:
Gimme points nowwwww and brainliest.
Which organelles are the sites of photosynthesis in plant cells?
Answer:
Chloroplasts
Explanation:
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
What best describes brackish?
A. salt water with no fresh water
B. fresh water with no salt water
C. the water that comes directly from a river's source
D. a mix of fresh water and salt water
Answer:
It should be letter D hope it helps
Answer:
The answer is D because it is a mixture of both freshwater and salt water!!
Name 3 sources of CO2
Answer:
fossil fuels like coal, oil and natural gas
Explanation:comon sense
Answer:
cow farts, man breath, animals breath
Explanation:
cows are the #1 source of pollution
Which of the following is NOT a reason that scientists classify organisms?
A
to organize organisms
B
to easily identify organisms
C
to determine the age of organisms
D
to ensure the use of a common language
Answer:
The answer is D My lovely
Explanation:
CAN I HAVE BRAINLIEST!!!
Which organelle is correctly paired with its function?
A) nucleus - provides carbohydrates for fermentation
B) Chloroplast - serves ae the site for photosynthesis
C) centriole - synthesizes digestive enzymes
D) lysosome - packages cellular products
Answer:
B) Chloroplast - serves ae the site for photosynthesis
The function of chloroplast is to synthesis food.
The organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.
What is the significance of chloroplasts in plants?Chloroplasts are cell organelles that are found in the cells of green plants, algae, and some other photosynthetic organisms and are the site of photosynthesis, which is the process by which plants convert light energy into chemical energy in the form of glucose, and it absorbs light energy, which is then used to convert carbon dioxide and water into glucose through a light reaction and the Calvin cycle, and the animals and plants get their food from it.
Hence, the organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.
Learn more about the significance of chloroplasts in plants here.
https://brainly.com/question/11136550
#SPJ2
It is important to be careful when using nonrenewable resources because...
Flocabulary
PLEASE HELP
Answer
they are nonrenewable so that means once you use them they are gone forever or for a very, very, veryyy long time (like 100 of millions of years)
Explanation:
an example of this would be fossil fuels
Which statement is true about eukaryotic cells?
A). Eukaryotic cells have membrane-bound organelles
B) The DNA of eukaryotic cells floats in the cytoplasm
C) Bacteria are an example of eukaryotic organisms
D) All eukaryotic cells have a cell wall
Answer:
C is the correct option.
All of the following are ways in which genetic engineering plays a role in medicine except
A.) identifying mutations.
B.) producing insulin and growth hormone.
C.) tracking how a condition is passed between generations.
D.) examining paternity.
Answer:
The Answer is D) examining paternity
Explanation:
Paternity is the state of being someone's father. Being someone's father plays no role in medicine
Answer:
yes, the correct answer is D: examining paternity
Explanation:
I got it right in edg 2020
hope this is of help :)
how do changes in a species population affect other organisms living in the same ecosystem?
Answer:
Explanation:
There are four main types of species interactions that occur between organisms in an ecosystem: Predation, parasitism and herbivory - In these interactions, one organism benefits while the other is negatively affected. * Competition - Both organisms are negatively affected in some way due to their interactions.
Why is fermentation unreliable in terms of the production of energy?
Answer:
fermentation is the process of turning yeast to alcohol
Explanation:
Which atom of water takes an unfair share of electrons ?
Answer:
the oxygen atom takes more electrons
A lentil plant with spotted seeds was crossed with another that had dotted seeds. The F1 plants turned out to have seeds that had spots and dots. What could be the reason?
Answer:
Lentil seed pattern is affected by codominance.
Explanation:
Lentil seed pattern is affected by codominance.
All living organisms maintain a relatively stable internal environment through a process known as homeostasis. The human body, for example, tries to maintain a temperature of about 37 degrees Celsius. When it gets cold outside, how does your body respond in order to maintain homeostasis?
A.
shivering
B.
sweating
C.
heavy breathing
D.
swelling
Answer:
shivering
Explanation:
the movement of your muscles creates friction between them, which produces heat, thus warming our bodies up.
Why does lactic acid continue to rise in the blood after exercising ceases
Answer:
During intense exercise, there may not be enough oxygen available to complete the process, so a substance called lactate is made. Your body can convert this lactate to energy without using oxygen. But this lactate or lactic acid can build up in your bloodstream faster than you can burn it off.
Explanation:
Question 8
5 pts
Calls release energy from chemical bands of food molecules and provide that energy for the essential processes of life. This is performed in the cells of plants and animals. What is
this referred to as?
Answer:
Metabolism
Explanation:
Cell metabolism describes all the biochemical reactions that occur in the cell. This includes the generation of chemical energy from the substances in food.
This is what is used to provide energy for all the cell's processes. It is a requirement for all living things. Cellular metabolism is complex and is powered by enzymes.
Explain the use of stem cells in the field of medicine. Give three specific examples and explain how stem cells are specifically used to treat the disease/injury
Answer:
Doctors can use stem cells to rejuvenate damaged tissue. Or, they can replace tissue lost to disease or injury. These cells are also often used to better understand different kinds of diseases, and what kind of drugs would work the best with them.
Explanation:
I hope this helps.
Identify the force used on your arm when you walk a dog on a leash and it tries to chase something
Friction
Gravity
Strong pull
Weak push
The force used on your arm when you walk a dog on a leash and it tries to
chase something is known as Strong pull.
Strong pull is defined a physical force which is usually aggressive or
coercive and it involves the movement in a particular direction due to
different factors or reasons.
The Dog in the example has a leash on and applies a force in the direction of
the thing it wants to chase which is a perfect example of a strong pull.
Read more on https://brainly.com/question/18572798
