Answer:
Oct 27, 2015 · CH_4 For this kind of problem, you can assume that the weight of the unknown sample is 100g ( since 75% C + 25% H = 100%). Thus, weight of C = 75g weight of H = 25g Since chemical formulas deal with number of moles rather than weight in grams, you need to convert each element by multiplying it to their respective atomic masses.
Explanation:
The empirical formular i H₂SO₄
The first step is to calculate the compound by the molar mass
Hydrogen, Sulphur, Oxygen
4.03/1 , 64.14/32 , 128/16
4.03 , 2 , 8
Divide by the lowest value
4.03/2 , 2/2 , 8/2
2, 1 , 4
H₂SO₄
Hence the empirical formula is H₂SO₄
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positive and negative punishment are meant to?
Answer:
yessssssssssssssssssssss
Which of the following characters can NEVER be an adaptation?
Answer:
ahh......
where r the options??
This model chose to include certain features and exclude other features. For example, this simulation only includes rabbits, wolves, and grass but there are other predators of rabbits and other food sources for rabbits. Why do you think the creators focused on these data elements and not others
The creator focused on these data elements and not others because he was trying to create a food chain instead of a food web.
In the ecosystem, the living and non-living things interact over time leading to exchange of energy.
A food chain can be defined as the steps through which energy transfer occurs in an ecosystem.
The energy flows from the producers (grass), primary consumers, (rabbits) and then the secondary consumers (wolves).
The energy flow is indicated with an arrow thus,
grass ---> rabbit -----> wolves.
Food chain, therefore includes linear sequence of organisms.
Food web on the other hand illustrates a complex feeding relationship within the ecosystem.
The food web is made up of a prey that can be eaten by more than one predator.
Therefore, even though there where other predators of rabbits and other food sources for rabbits, he chose only few features to create a food chain.
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Which of the following is a biotic limiting factor? a. Fire b. Earthquake c. Hurricane d. Predators
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so how many eyes do a dog and cat have
Answer:
i think its 2
dog have 2 eyes and cat also have 2 eyes
Due to a recent drought, a farmer has lost quite a bit of soil on his fields because:
A) the rain has washed it away.
B) the animals have been trying to eat the soil due to lack of food.
C) the plants have absorbed the soil.
D) wind has carried away the dry soil.
Pls help
Answer:wind has carried away the dry soil
Explanation:
The Forensic Anthropology Facility was founded by whom?
can some one help me with this please
Answer:
7 answer is b
8 answer is d
9 answer is a
Explanation:
Answer:
B
D
A
Explanation:
:)
Check all statements below that are true
All organisms must compete for survival.
When
organisms struggle to survive, they usually mutate
to
Some
organisms have phenotypes that make them better
increase chances of reproduction.
environment
competitors than others in their
Animals undergo natural selection, but plants and other organisms
Natural selection continues to occur even today
generally do not.
I
Phenotypes found In the most successful members of a species become the most prevalent after
several generations.
M
A decrease in food availability will increase the variation in a population.
Answer:
Statements thar are true:
Some organisms have phenotypes that make them better increase chances of reproduction.
Natural selection continues to occur even today
Phenotypes found In the most successful members of a species become the most prevalent after several generations.
Explanation:
It is not true that all organisms must compete for survival, sometimes the conditions are good and there is enough food or good climate conditions and that makes no need of competition an increase in the individuals of the species.
Animals undergo natural selection, this is a random natural phenomenon that can make plants and animals adapt better or worse to the enviromental conditions. This cause that the beneficiaries can adapt, survive and reproduce and became the most prevalent after generations.
Mutations are not phenomen that occur because the living being needs it, but rather they are phenomenon that occur at random at any time and determine the possibility of survival.
A decrease in food availability will do the contrary, decrease the variation in a population because it makes that only those who manage to adapt to eat another food survive, for example.
Answer:
A C E F
thats that ones
How does respiration impact the amount of carbon in the atmosphere?
The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.
The process of mitosis ensures that each daughter cell has a copy of every chromosome present in the parent cell. What is the use of this process?
Answer:
option C is correct... the third one
1. In the digestive system, where are nutrients absorbed?
A: Small intestine
B: Large intestine
C: Or Liver
2. In the circulatory system, what type of vessels are able to exchange materials by passive transport?
A: Capillaries
B: Arteries
C: Veins
3. Which system controls all other organ systems?
A: Endocrine
B: Nervous
C: Respiratory
4. How does the integumentary system aid with homeostasis?
A: Controlling body temperature
B: Both A and B
C: Getting rid of excess salt through sweat
5. Which system is in charge of producing offspring?
A: Muscular
B: Urinary
C: Reproductive
6. Bones, cartilage and ligaments are all structures in what organ system?
A: Skeletal
B: Endocrine
C: Circulatory
7. Which of the following statements about the circulatory system is NOT true?
A: The liver is used to clean blood and remove any wastes and excess water/salts.
B: The endocrine system uses your blood to carry hormones around the body.
C: it delivers nutrients, gases and other materials throughout the body.
Answer:
1. Small intestine
2. A. Capillaries
3. B. Nervous system controls all other organ systems.
4. A. Controlling body temperature.
And hydration.
B. Producing sweat to regulate body temperature and get rid of waste.
5. C. Reproductive system.
6. Skeletal system
7. A
Explanation:
air is made of ____and ____
Answer:
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
Answer:
air is made of nitrogen and oxygen
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DNA and RNA contain nucleotides that code for what?
A Carbonic Acids
B Amino Acids
C Hydrochloric Acids
D Lactic Acids
Answer:
your answer is definitely B: Amino Acids
Explanation:
Answer:
B
Explanation:
What is the nervous system composed of?
A. The central nervous system
B. The peripheral nervous system
C. The respiratory system
D. Answers A & B
Answer: D) the central and peripheral nervous systems
hope this helps
In very extreme weather, the xylem cells are damaged as well. Describe how the plant is affected if the xylem is unable to function correctly.
Answer:
The plant will die
Explanation:
Xylem's job is to transport water and minerals from the soil to the parts of the plant. Without it the plant won't receive the required minerals and the plant will die.
True or False: Because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny.
The statement 'because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny' is TRUE. It is natural selection in action.
According to the evolutionary theory proposed by Darwin, natural selection is the mechanism by which species change (evolve) to adapt to particular environmental conditions.
In this case, the microbiome represents an evolutionary adaptive mechanism, thereby natural selection will tend to favor individuals that have a beneficial microbiome.
In consequence, individuals having a beneficial microbiome will have more chances to reproduce and survive (i.e., they have higher adaptive fitness), thereby they also have more chances to pass this adaptive trait to the next generation.
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Identify this functional group
Answer:
Hydroxyl
Explanation:
Hydroxyl groups are simple structures consisting of an oxygen atom with two lone pairs bonded to a hydrogen atom.
A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom.
Using these given definitions, a hydrogen bond is labeled with one linkage, while a covalent bond is with two links to the Carbon Atom.
See attached image for a similar diagram for proof.
How toxins are accumulated as you go up in trophies levels in an ecosystem
Answer:
hi sorry, i want stitches

NEED HELP NOW PLEASE
5. Arrange the following levels of organization: Write numbers 1-8 only.
Compound of molecule
Atom
Organelle
Cell
Organism
Organ
Tissues
Organ system
is broccoli a dicot or monocot?
Answer:
Broccoli is a dicot
Explanation:
I looked it up on the internet :)
How is a proton gradient formed across the inner mitochondrial membrane?
Answer:
Energy is released in these “downhill” electron transfers, and several of the protein complexes use the released energy to pump protons from the mitochondrial matrix to the intermembrane space, forming a proton gradient.
Explanation:
You are competing at a high school gymnastics meet. Your floor routine music begins
and you start running in a positive direction into a tumbling pass, starting from rest.
At 2s, your velocity is 4.5m/s. Calculate your acceleration.
Your Answer:
Answer
units
Answer:
2.25 m/s^2
Explanation:
Acceleration is the speed which you are increasing by per second. Therefore to find acceleration all you need to do is divide the change in velocity (4.5) by the time (2). Your units than become (m/s)/s or m/s^2.
HEHEHHEHEHEHEHHEHEHHEHHEHE HELP ASAP
the answer is A. voting.
If you were born November 16, 1986 how old are you today
Answer:
2021-1986 = 35 years old
Explanation:
Say that you look at the nuclei of 100 skin cells taken from the same person. About how many of these skin cells would you expect to be in interphase
Answer:
45 cells would be in the interphase
In the nuclei of 100 skin cells. The number of skin cells would be in interphase is 45.
What are cells?Cells are the key unit of living organisms. The cell divides into many cells through the process of cell division.
Prokaryotic cells are the primitive type of cells that are present only in unicellular organisms, and they do not undergo cell division. These cells do not have true cell organelles and a nucleus, in that DNA is present in coil form in the cytoplasm. They contain ribosomes the organisms are bacteria that contain prokaryotic cells.
Eukaryotic cells are higher cells that contain cell organelles they have to perform various complex functions of large organisms. They have a nucleus which contains DNA or genetic material, it does not have flagella.
Therefore, the number of skin cells in the interphase is 45 cells.
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What do weather forecasters use to forecast the weather?
A. superstitions
B. beliefs
C. weather patterns
D. dreams
what is the chemical formula for the sugar carbohydrate produced by photosynthesis?
A. H2O
B. CO2
C. C6H12O6
D. O2
Answer: C
Explanation:
Which of the following describe how seabird populations are affected by climate change?
Answer: Varies
Explanation:
It depends on the time of season at the given moment.
what is the main reason scientist do experiments?
A) to find out if a hypothesis is correct
B) to provide jobs for scientists
C) to find different ways to use lab equipment
D) to educate science students
