Answer:
A burning piece of wood is a chemical change, because you alter it, and it turns to ashes, and it is irreversible, where as you can make water cold again
Answer:
youre creating a new substance in a chemical reaction
Explanation:
by boiling water, you arent making anything new. you're just changing the form of the water.
by burning wood, you're inducing a chemical reaction because some new substance is being made with the reactants
2. How long would it take for a car to travel a distance of 275 km if it is traveling at a velocity of 55
km/hr?
Answer:
5 hours
Explanation:
275 divided by 55 = 5
many nonscientist careers require a knowledge of science because workers must
a.) develop new science laws and theories.
b.) use materials and processes that follow scientific principles.
c.) use the process of scientific injury.
d.) keep up with new developments in science.
The left and right sides of the brain refer to which of the following?
a. reticular activating system
b. cerebral cortex
c. cerebellum
d. medulla
cerebral cortex
vgvgvgv
vgr
v
g
vg
v
g
v
Please help fast!!!!!
Who observed one cell dividing into two, which led to another tenet of the cell theory: cells come from preexisting cells?
A: Robert Brown
B: Matthias Schleiden
C: Theodore Schwann
D: Rudolph Virchow
Answer:
The answer is C. Theodore schwann.
Explanation:
fill in the table:-
characteristics of oviparous Animals
characteristics of viviparous animals
Answer:
animals which give birth by laying eggs are called oviparous animals. eg: birds
animals which give birth as alive young ones are called viviparous animals . eg: mammals like cat, dog , human etc.
Someone please help ill give you brainliest!!!
Answer:
Work is the transfer of energy , Energy is the capacity for doing work , and Power is work being done in a unit of time.
There are 2 types of energy
Kinetic Energy : Energy of Motion
Potential Energy : Stored Energy
When calculating work energy and power you use WORK = W=Fd
Because energy is the capacity to do work , we measure energy and work in the same units. Power's SI unit of measurement is the Watt, representing the generation or absorption of energy at the rate of 1 Joule/sec. Power's unit of measurement in the English system is the horsepower, which is equivalent to 735.7 Watts.
How are sedimentary classified?
Answer:
Sedimentary rocks are classified based on how they form and on the size of the sediments, if they are clastic. Clastic sedimentary rocks are formed from rock fragments, or clasts; chemical sedimentary rocks precipitate from fluids; and biochemical sedimentary rocks form as precipitation from living organisms.
Explanation:
In cell membranes with aquaporins can water move across the membrane?
1. No, water is polar can not pass the phospholipids
2. Yes, water is able to pass across the membrane through the aquaporins.
3. No, water is too large to pass through the aquaporins.
4. Yes, water is non-polar and can cross the phospholipid bilayer.
Answer:
The cell membranes of a variety of different bacteria, fungi, animal and plant cells contain aquaporins through which water can flow more rapidly into and out of the cell than by diffusing through the phospholipid bilayer.
PPPLLLEEEAAASSSEEE HHEELP!!!
Answer:
it is a bit con fusing can you turn it to text
What is one reason scientists are trying to culture meat in laboratories instead of simply hunting or raising animals?
Answer:
Many reasons - but a really good question.
Explanation:
Cruelty - eating meat poses ethical issues to some people. They dont eat meat because they dont believe animals should be harmed. Growing laboratory meat takes away the need for slaughter.
Land used - a big issue with producing meat is the amount of land we need to raise cattle and to grow the food to feed cattle. Rainforest, woodlands, moorland have to be destructed to make way for pasture land for cattle. The food that cattle or animal eats also needs to be grown, which requires more land. Laboratory grown meat doesnt require all the pasture space for raising or feeding animals.
Water use - the amount of water that goes into producing meat is very high when compared to amount of meat that you get back. Water availability is another global issue that may be able to be addressed by lab produced meat.
When animals are reared from meat, they may be killed in unethical ways thereby making it ethically irresponsible to raise animals for meat.
Animals are widely used as food. This food from animals or having animal origin is known as meat. The ethical issues are of key importance in raising meat for food.
When animals are reared from meat, they may be killed in unethical ways thereby making it ethically irresponsible to raise animals for meat.
Learn more about animals: https://brainly.com/question/1195122
If the DNA code reads CCAATTGG then the tRNA code would read?
Answer:
CCAAUUGG
Explanation:
A tRNA is all the letters stay the same unless there is a T or a U. a T turns into a U and vise versa.
In case DNA code offers the reading CCAATTGG, the reading of the code tRNA would be:
CCAAUUGG
The term "tRNA or Transfer RNA" is described as the small atoms that may function for the purpose of carrying/transferring amino acids.In the given situation, "tRNA" code for the provided DNA code reading would be similar to the DNA except for T. The letter "T" would be replaced with U in tRNA and U become T while converting it to DNA.
Thus, "CCAAUUGG" is the correct answer.
Learn more about "RNA code" here:
brainly.com/question/9107826
Which of these is an example of nonpoint-source pollution?
Answer:
Its C, just did the test.
C> Fertilizer flows into rivers from farm
how does coriolis effect affect the climate zones in the world? PLEASE HELP! I WILL GIVE BRAINLY TO PROPER ANSWER!
Answer:
Please Mark as Brainliest
Explanation:
The development of weather patterns, such as cyclones and trade winds, are examples of the impact of the Coriolis effect. ... As warm air rises near the Equator, for instance, it flows toward the poles. In the Northern Hemisphere, these warm air currents are deflected to the right (east) as they move northward.
Differentiate between breathing and respiration
Your answers
Answer:
Breathing is a biophysical process that involves the exchange of Gases through inhalation and exhalation
repiration is a biochemical process to realest energy from organic compounds which are then used for performing different physical activities
Explanation:
HELP!!! WILL MARK BRAINLIEST
ITEM BANK: Move to Bottom
Cell Membrane
Cell Wall
Central Vacuole
Chloroplast
Mitochondrion
Nucleus
Answer:
wait what's the question ❓
Which is observation proves that a cell is a eukaryote?
A.it has DNA in the cell
B.it has ribosomes inside the cell
C.it has enclosed organelles inside the cell
D.it is surrounded by a cell membrane
What is happening when scientists explore the world around them?
OA. Making observations
B. Scientific disagreement
C. Peer review
D. Forming a hypothesis
Answer: A:making observations.
Explanation: it is making observations because when they view there world around them they can see all of the things idk but i know its A lol
Answer:
A:making observations
Explanation:
can someone help me?
The Rabbit and Mouse- Have a great day!
what do the base pairing rules have to do with replication
Answer:
Replication relies on complementary base pairing, that is the principle explained by Chargaff's rules: adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G).
Explanation:
A in Bio last year.
i need 5 examples .....
Identify the structures. Please ASAP
Answer:
A=cytoplasm
B= chloroplast
C= endoplasmic reticulum
D= golgi vessels
E= golgi apparatus
F= vacuole
G= mitachondria
1- state the type of protein used in the immune system that is produced from amino acids by lymphocytes ?
Answer:
antibodies - proteins (gamma globulins)
Explanation:
The ribosome, a biological component found in the cytoplasm of cells, is in charge of producing luciferase.
what is cytoplasm:
The ribosomes are responsible for producing all proteins.The cytoplasm of a cell contains ribosomes, which are cell organelles that allow mRNA and tRNA to function so that proteins can be produced.All of the components of a eukaryotic cell outside of the cell nucleus are referred to as cytoplasm in cell biology. Nucleoplasm is the name for the substance that makes up the nucleus and is enclosed within the nuclear membrane. The cytosol, a gel-like fluid, the organelles, and numerous cytoplasmic inclusions are the three primary elements of the cytoplasm. About 80% of the cytoplasm contains water, and it is typically colorless.After removing the cell organelles and particles, groundplasm—a submicroscopic ground cell material or cytoplasmic matrix—remains. The bigger organelles, including ribosomes, mitochondria, plant plastids, lipid droplets, and vacuoles, are suspended in this highly intricate, polyphasic structure known as the hyaloplasm of light microscopy.The majority of cellular functions, including several metabolic pathways, including glycolysis, and procedures like cell division, take place within the cytoplasm. The concentrated inner region is known as the endoplasm, and the cell cortex or ectoplasm is the name of the outside layer.This is so that codons can be inserted, amino acids can be formed, and all the proteins, including luciferase, can be formed. The ribosome traps the mRNA molecule and moves over it.
learn more about it
https://brainly.com/question/15986571
#SPJ2
Pls help me with this
Answer:
The answer is remove wate
Explanation:
What are 4 agricultural products presently being worked with and studied in Nc biotechnology?
Answer:
Biotechnology has applications in four major industrial areas, including health care (medical), crop production and agriculture, non-food (industrial) uses of crops and other products (e.g. biodegradable plastics, vegetable oil, biofuels), and environmental uses.
Explanation:
North Carolina has over 400 biotechnology companies. How would the economy most likely change if that number were reduced by half The economy would decline because of job loss
When a can is crushed is it going threw physical change or chemical change
answer
physical change
Explanation:
Answer:
Physical
Explanation:
E
Which of the following is most likely an example of genetic drift resulting from the founder effect?
Answer:
An example of genetic drift resulting from the founder effect, of the available answers listed below, would most likely be a situation in which a population commonly expresses traits that are otherwise rare in the species. An example of this might be an animal with longer limbs than other members of the same species - there have been real-life examples of this studied with lizards.
Explanation:
5. What happens to blood flow to the digestive system when you exercise?
Answer:
By exercising, it increases blood flow towards the muscles and digestive tract. This can help move food through the stomach, or digestive tract.
2. What time of year would you visit the beaches of Argentina?
Answer:
December - February is summer in Argentina.
Explanation:
Use bedrock in a sentence.
Answer:
Explanation:
1.They dug down for 10 feet before they hit bedrock.
2. His religious beliefs are the bedrock on which his life is based.
please answer this for me
Answer:
The answer is A
Explanation:
You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.