During a chemical reaction, the number of atoms stays the same
Atoms of elements are involved in chemical reactions. Atoms of different elements combine together to form molecules or compounds. According to the law of conservation of mass, matter cannot be created nor destroyed. This means that the number of atoms (matter) in the reaction does not increase or decrease but rather, stay the same.Atoms only get rearranged as they form new molecules and compounds, they however, do not change during chemical reactions.
Hence, atoms stay the same during chemical reactions.
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state the scientific name for thyme
what are the side effects of peppermint
[thank you]
Here is your answer hope it helps.
How many valves does the human heart have?
Answer:
The right auricle opens into the right ventricle, this opening is guarded by the tricuspid valve (having three cusps or flaps). Similarly, the opening between the left auricle and the left ventricle is guarded by the bicuspid valve (having two cusps or flaps). These valves regulate the flow of blood in one direction i.e., from auricles into the ventricles.
The blood flows from the right ventricle into the pulmonary artery and from the left ventricle into the aorta (the largest artery). The flow of blood from the ventricles into these two arteries is also regulated by valves. These valves resemble a half moon, hence they are called semi-lunar valves. These valves are present at the opening where the pulmonary artery and aorta leave the right and left ventricles respectively. They ensure that the blood does not flow back into the ventricles.
how does a number of injuries per cat relates a number of stories a cat falls
How does the environment influence the survival advantage/disadvantage of certain characteristics?
Answer:
Many students believe that the physical characteristics of organisms change in response to changes in the environment in which the organisms live, and that these changes are passed on to future generations. For example, there is widespread belief that, over many generations, giraffes have gradually developed longer necks as they competed with other animals and each other to reach higher and higher leaves on trees for food.
Many students also believe that organisms can deliberately develop new traits in order to improve their chances of survival. As an example, students believe that moths with spotted wings are able to change the color and patterns on their wings so they are better camouflaged among tree trunks that may have become darker from pollution from industry. Many students also believe that repeated use of insecticides like DDT has meant present populations of insects have become
Explanation:
Love y'all y'all the homies
Answer:
Thnxxxxxxx :>>
Explanation:
Question 1(Multiple Choice Worth 5 points)
(06.04 LC)
The __________ system is responsible for moving blood cells throughout the body.
circulatory
endocrine
immune
respiratory
Answer:
The . .circulatory system is responsible for moving blood cells throughout the body.circulatory
I hope it helps
Answer:
Hii!! the answer is circulatory
Explanation:
Circulatory is the only responsible system for moving cells. The blood circulatory system, is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate. Hope this helps! Bye bye.
what macromolecules are found in a hot dog ?
Answer:
contain nitrites and/or nitrates
Explanation:
The meat is comprised of beef, pork, or turkey, which are all forms of protein (again, amino acid polymers). There is also a fair amount of fat (animal fat tends to be in the form of triglycerides) and some degraded genetic material from the original organism now being turned into food. :) In addition to these things, the hot dog may contain some food coloring and will likely contain some preservatives - a common preservative for meats (to prevent botulism and rancidity) is sodium nitrite
what is meant by the word 'anchorage' in biology?
the act of anchoring or the state of being anchored IS KNOWN AS ANCHORAGE
what is cell cycle? in detail
Answer:
A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Answer:
A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Explanation:
What organelles are present in both plant and animal cells?
Answer:
Explanation:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Answer:
because they both contain eukrayotic cells.
what effect does vitamins have to your body
Answer:
here is your answer ✔️✔️✔️✔️✔️✔️
100 points!!!! pls help!!!
A football player gets tackled during the game, which of the following body systems is responsible for protecting their organs?
circulatory system
reproductive system
skeletal system
nervous system
Answer:
Skeletal system
Explanation:
the bones of the skeleton protect the internal organs and reduce the risk of injury on impact. For example, the cranium protects the brain, the ribs offer protection to the heart and lungs, the vertebrae protect the spinal cord and the pelvis offers protection to the sensitive reproductive organs.
Answer:
I believe your best choice from the given choices above would be C) skeletal system. The bone structure within the human body, such as the rib cage for instance, provides protection for our organs and takes more impact rather than any of our organs. Without our skeletal system, we would have zero protection for our organs, increasing the chance of more internal body damage.
What would the independent variable be in an experiment testing the effectiveness different types of paper airplane?
A. The types of folds made
B. The paper used
C. The distance DI each plane’s flight
D. The color of the paper
Answer:
A. The type of folds made
Explanation:
independent varible is the one that changes to affect the outcome of the dependent variable
What is a macromolecule?
Answer:
is a very large molecule such as protein. They are composed of thousands covalently bonded atomsAB blood type contains what type of antigens?
A. B antigens
B. No antigens
C. A antigens
D. A and B antigens
Answer:
D. A and B antigensExplanation:
In AB blood type there is A antigen and B antigen but there are no antibodies.
How does the amount of nitrogen in inhaled air compare to the amount of nitrogen in exhaled air?
A. There is no nitrogen in either
OB. The nitrogen stays the same in both
C. There is more nitrogen in exhaled ait:
D. There is less nitrogen in exhaled air
Answer:
from my understanding your body doesn't do anything with the nitrogen so the answere would be B
bservations of organisms include descriptions of why the organism has certain traits. descriptions of the number, size, and arrangement of parts of the organism. conclusions made about the characteristics of an organism. conclusions made based on an organism’s DNA.
Answer:
Scientists first discovered chromosomes in the nineteenth century, when they were gazing at cells through light microscopes. But how did they figure out what chromosomes do? And how did they link chromosomes — and the specific genes within them — to the concept of inheritance? After a long period of observational studies through microscopes, several experiments with fruit flies provided the first evidence.
Which of the following cells would be found in xylem tissue?
sieve tube members
companion cells
b. tracheids
d. guard cells
a.
C.
Please select the best answer from the choices provided
Α
В
C
D
Answer:
D. guard cells.. this is answer i think..
You are conducting an experiment to measure the gain in mass of a young mouse over 10 weeks. Instructing a graph represent your data which variable should you place along the X axis and which variable should you played along the Y axis
In this experiment, the gain in mass should be plotted along the Y axis while the time (in weeks) should be plotted along the X axis of the graph.
The easiest pattern of reporting experimental results in science is by the use of a graph. A graph is a diagrammatic representation of the relationship between two variables along the X-Y Cartesian axes.
In this experiment, we are trying to represent the relationship between the gain in mass and time taken. The experiment is scheduled to run over a course of ten weeks.
The X axis ought to represent the time in weeks while the Y axis ought to represent the gain in mass.
This derives from the fact that it is conventional for the dependent variable (in this case gain in mass) to be plotted along the Y axis while the independent variable (time) to be plotted along the X axis.
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Put the following in order of how they would occur in an experiment
(a) Analyze the data from the experiment.
(b) Organize the data into charts, tables, and graphs.
(c) Publish the results.
(d) Form a conclusion based on the data.
(e) Repeat the experiment to determine if the data
from the first experiment is reliable.
Answer:
b,a,d,e,c
Explanation:
What is the definition of Eyewitness
what do viruses have in common with living things.
A- they are made up of specialized cells
B- they contain genetic material
C- they reproduce by mitosis
D- They contain chlorophyll
Answer:
B-They contain genetic material.
Explanation:
They are not made out of cells. They don't reproduce by mitosis(Only cells reproduce by mitosis).
Only specialized plant cells contain chlorophyll.
They do have genetic material which could be DNA or RNA.
Which type of graph do I use for this data table?
Answer:
you should use normal Data table only and mark
what is element. give 3 example
Answer:
An element is. a parcel where it is made up of only one kind of particle called atom is known as element.
eg. oxygen
hydrogen
gold
silver
carbon
Explanation:
hope it helps you
En las células eucariotas el ADN se transcribe a ARN y posteriormente éste se traduce para
fabricar una proteína. Como se muestra en el esquema, la cadena de ADN se transcribe a su
Complementario de ARN mensajero (ARNm). Este sale del núcleo yes leído, en grupos de 3
nucleótidos para atraer complementarios de ARN de transferencia (ARNT), a los cuales se unen
aminoácidos (aa) particulares, con la ayuda de los ribosomas.
Teniendo en cuenta el código de traducción (ARNt aa) que aparece en la tabla, la secuencia de
aminoácidos que se produciría a partir de una secuencia de ADN: AATTTAGAC, sería
please we need a translator into English
Fitness in an evolutionary sense is measured in:
a. Number of viable offspring produced
b. Physical appearance
c. Lifespan
d. Ability to survive
Answer:
D. ability to survive
"The central concept of natural selection is the evolutionary fitness of an organism. Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation."
Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.
What is Fitness?Fitness may be defined as the situation of survivability of an organism under a given condition.
It is the concept of natural selection that it is only the relative fitness that estimates the existence or extinction of species in a particular habitat.
The Relative fitness of an organism overall depends on relative survival and relative reproduction.
Therefore, Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.
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What is a bacterium?what are the process it does? (all the process from beginning to the end)
Answer:
below
Explanation:
Bacterium or bacteria is a unicellular/prokaryotic microorganism that is present in many different settings. I'm not really sure what you mean by "process" but I assume it is how bacteria reproduce. In short, the parent cell creates two clone daughter cells. This procress is called binary fission.
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Which information did Millikan contribute to the understanding of electrons?(1 point)
He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons absorb or release specific amounts of energy.
He determined that electrons absorb or release specific amounts of energy.
He determined the ratio of mass to charge for electrons.
He determined the ratio of mass to charge for electrons.
He determined the amount of charge on an electron.
Answer:
Explanation:
He determined the amount of charge on an electron
Explanation:
He determined the amount of charge on an electron
The information which Millikan contributed to the understanding of electrons is: D. He determined the amount of charge on an electron.
An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.
Generally, atoms are typically made up of three (3) distinct particles and these are;
Protons.Neutrons.Electrons.Electrons can be defined as the subatomic particles of a chemical element that are negatively charged and as such are having a magnitude of -1.
Robert Andrew Millikan was born on the 22nd of March, 1868 in Illinois, United States of America. He was an experimental physicist who got honored with a Nobel Prize in 1923 for his outstanding work in the field of physics, which included the following;
The study of the photoelectric effect.The measurement of the elementary electronic charge of a single electron.This ultimately implies that, Robert Andrew Millikan using an electric field with a small oil-drop determined the magnitude of an electron's charge.
In conclusion, the information which Millikan contributed to the understanding of electrons is determining the amount of charge on an electron.
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Do you think people use energy before modern times why or why not
Answer:
Yes
Explanation:
Before the modern times, energy consumption was vital in order to survive. For example, you need heat (thermal energy) to cook food and also be in a decent state of temperature for your body. If they had be never used energy, the generations wouldn't go on. Energy is our main source of living. Solar energy provides sunlight to plants so they can be grown healthily to provide nutritious fruits and vegetables.
To conclude, yes, people did use energy before the modern times otherwise, they would've not survived.
Before the manufacturing revolution, our energy demands were mediocre. For heat, we relied on the sun. Whenever the sun disappointed us, we scorched wood, hay, and withered dung. Our society's energy use changed forever, even with the low-cost automobile and the expanse of electricity. Energy usage increased rapidly, doubling every decade. The price of energy production was decreasing unwaveringly, and the efficient use of energy was not a concern. Drivers lined up at gasoline stations to purchase gas, and President Jimmy Carter went on television to announce that energy preservation was "the moral equivalent of war." New factory orders had already stopped because of multibillion-dollar price overruns, soaring-high inflation, and a slowdown in electricity demand growth due to the early effects of energy preservation. So I think people used energy before modern times.
Do you know biology?
Answer:
yes
Explanation:
ask me anything