What animal did a snake come from
Antoine Lavoisier performed his classic twelve-day experiment in 1779 which has become famous in history. First, Lavoisier heated pure mercury in a
swan-necked retort over a charcoal furnace for twelve days. A red oxide of mercury was formed on the surface of the mercury in the retort. When no
more red powder was formed, Lavoisier noticed that about one-fifth of the air had been used up and that the remaining gas did not support life or
burning. Lavoisier called this latter gas azote (Greek 'a' and 'zoe' - without life). He removed the red oxide of mercury carefully and heated it in a
similar retort. He obtained exactly the same volume of gas as disappeared in the last experiment
Lavoisier's experiments use the scientific, method of finding out the nature of an unknown substance by analysis, breaking down, and synthesis, and
then building it up again from its constituents. In his experiments Lavoisier separated air into two constituents: the one which supports life and
combustion, and is one-fifth by volume of air he called oxygen, the other four.fifths which is now called nitrogen. From the two gases he synthesized
something that has the characteristics of air. Lavoisier's experiments gave us the theory of combustion as we have it to this day: that when a substance
burns in air, it combines with oxygen of the air and the product of combustion is heavier than the original substance.
If we don't recycle, what everyday resources do we lose?
*Science
Answer:
We might lose things such as plastic bags, water bottles cardboard and glass it would be a shame if any of these things got lost we could be using the glass to help us build structures or we can even build things out of plastic and we can try helping people by building gains Lego blocks to craft out a house for them.
what does a reflectd light look like
Answer: Reflection of light. Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. ... Most of the things we see are because light from a source has reflected off it.
Explanation:
Answer:
light
Explanation:
What is biology?
And is there any difference between biology and geography?
Answer:
lol biology is science and is about animals cells and humans and geography is about the world.
xoxoxo
Explanation:
The two water biomes are the marine biome and the ocean biome.
a. true
b. false
17 Answer:
A lichen is a combination of an alga and a fungus growing together.
a. true
b. false
18 Answer:
Musk oxen, lichens, and lemmings would be found in a grassland.
a. true
b. false
19 Answer:
Oaks, maples, beeches, and hickories are usually found in a
tropical rain forest.
a. true
b. false
20 Answer:
Winter temperatures may drop below freezing in a desert.
a. true
b. false
Answer:
true ,true,false ,false,true
Explanation:
what is the definition of ATP for biology
The full form of ATP is Adenosine Triphosphate.
Adenosine triphosphate is an organic compound that provides energy to drive many processes in living cells, e.g. muscle contraction, nerve impulse propagation, and chemical synthesis. Found in all forms of life, ATP is often referred to as the "molecular unit of currency" of intracellular energy transfer.
What happens to the second and third stages when they run out of fuel?
Answer:
When the first stage separate, then it will not descend further and it will fall away. It would not be able to launch into air.
The first stage actually help to release it from shell, the first stage of multistage rocket help it to sprout.
If the first stage runs out of the fuel, then there will be no combustion in rocket and it will not ascend further into next stages.
If the second and third stage run out of the fuel then the next 4th and 5th stages will happen to a cessation and there will be a likelihood for it to fall down to earth.
Is it correct to say the evolution is JUST a theory? Is gravity JUST a theory? Defend your answer
Explain how bacteria develop resistance to antibiotics
Explanation:
Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections. The bacteria survive and continue to multiply causing more harm.
Which answer is not a mechanism for evolution? Genetic Drift Mutations Gene pool Natural Selection
PLEASE ANSWER!!!!
Describe in three paragraphs how the actions of the entire human race contribute to (or take away from) the amount of ENTROPY in the universe.
Answer:
At the moment of the Big Bang, almost all of the entropy was due to radiation, and the total entropy of the Universe was S = 1088kB. On the other hand, if we calculate the entropy of the Universe today, it's about a quadrillion times as large: S = 10103kB. There are 3 three human enterotypes.
An enterotype is a classification of living organisms based on its bacteriological ecosystem in the gut microbiome. The discovery of three human enterotypes was announced in the April 2011 issue of Nature by Peer Bork and his associates.
Explanation:
Yes, the entropy of the universe is increased by human civilization. but only by a negligibly small amount. The entropy of the cosmos is increased by a one-gram mass entering a supermassive black hole more quickly than the entire Earth's annual energy production.
What is entropy?The quantity of energy that cannot be used to perform work is measured by an object's entropy. The number of alternative arrangements that the atoms in a system can have is also measured by entropy. Entropy is a measure of uncertainty or randomness.
What is the relation between entropy and the human race?
Living things should have substantially lower entropy than their non-living components since life is highly organized. In reality, one of the primary characteristics of life is the use of energy to establish and sustain order. Based on the few observations we have of other worlds, it appears that life is improbable, which is one implication of low entropy for life. However, another implication is that if living things act to raise entropy globally, there must be a corresponding decrease in entropy locally to counteract that rise. This is necessary because of the second law of thermodynamics, which states that a rise in entropy is by far the most statistically likely result.
However, "closed systems," which refers to a system that is unable to exchange heat or energy with its surroundings, are subject to the second law. Heat can be used by an organism that can interact with its environment to reduce local entropy and gain local order. The ability to locally lower entropy is literally a matter of life and death for that creature, even though the overall state of chaos continues to worsen.
Human beings are a clear illustration of this idea. Compared to inanimate objects like air and water, our human bodies have a relatively high degree of order. A human represents far more order even when compared to dirt, which has a diverse ecosystem of microorganisms and larger creatures like worms. However, this is not in conflict with the second law because our ability to consume food and eliminate incredibly disorganized waste products allows us to sustain life. In order to maintain or reduce local entropy levels and hence stay alive, humans can extract the chemical energy from food and consume it.
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What is a genotype?
-an organism’s appearance as a result of its genes
-the collection of dominant genes in an organism
-the ratio of dominant to recessive genes in an individual
-an organism’s combination of genes for a trait
Answer:
an organism’s combination of genes for a trait
Explanation:
Answer:
a
Explanation:
none
What holds bones together?
Answer:
Ligaments connect the ends of bones together in order to form a joint. Tendon - A tough, flexible band of fibrous connective tissue that connects muscles to bones. Joints - Structures that connect individual bones and may allow bones to move against each other to cause movement.
Explanation:
Answer: Ligaments
Explanation:
Ligaments connect the ends of bones together in order to form a joint. The strong connective tissue in the ligaments protects these structures and prevents them from bending, twisting or tearing. Regardless of whether they connect bones or organs to each other, ligaments help to maintain stability in the body
I hope this helps :)
how would you use the scientific method to answer this question: do mice live longer when they are fed high-sugar diets
Answer:
The question: Do mice live longer when they are fed high sugar diets?
Hypothesis: There are two hypothesis the null hypothesis which we assume is correct, it states that a high sugar diet will have no effect on the life span of a mouse and an alternate hypothesis that we accept if evidence shows that sugar does increase the life span if mice. It says a high sugar diet does incerease the life span of mice.
Prediction: Assume that the null hypothesis is correct. High sugar diets will not increase the life span of the mice.
Collect data through experimentation. Use some mice as a 'control'. These mice will not undergo any changes but will be kept for comparison. Expose some other mice to high sugar diets and the compare the outcome with the 'control' mice.
Analyzing: From the experiment this you can choose which hypothesis you are going to accept. I.e. null: no change or alternate: there was a change and do some extra research to back up your hypothesis.
Hope this helps :)
1) Examine the diagrams below.
2) Describe and explain the changes in the groups of species 2 through 6 in the “Over Time in Six Stages” graph (the top one). Use scientific reasoning to support your explanation.
Answer:
This a process of ecological succession that occurs in every environment.
Explanation:
The first organism which starts growing on the rocky surface are the mosses and grasses. We called it primary succession because mosses and grasses are the first organisms which lives on rocky surface. After some time, these mosses disappear or removed due change occur in the environment and new species such as higher plants start growing on these surface. The mosses die and provide nutrients for the higher plants. We called it secondary succession because the mosses are removed and higher plants takes their place.
why is biomass difficult to calculate PLEASE HURRY!!!!!!!
Answer:
There are many methods to directly measure biomass of herbaceous plants, but, it is difficult to estimate biomass of shrubs and trees. Peak standing crop may be difficult to measure in ecosystems with a large variety of species because each species will generally reach it's peak phytomass at a different time of year.
Explanation:
Calculate the percent increase in population between year 1 and year 2, year 2 and year 3, and year 3 and year 4. Round up or down to the nearest whole percentage.
Answer:
Explanation:
Please provide the population to enable me do the calculation
Answer:
Percent increase between years 1 and 2:
(5,780 – 3,845) ÷ 3,845 = 0.50 = 50% increase
Percent increase between years 2 and 3:
(15,804 – 5,780) ÷ 5,780 = 1.73 = 173% increase
Percent increase between years 3 and 4:
(52,350 – 15,804) ÷ 15,804 = 2.31 = 231% increase
Explanation:
How do subduction zones form
Answer:
A subduction zone forms when continental crust and oceanic crust collide. The continental crust is thicker and more buoyant than the oceanic crust so the oceanic crust subducts beneath the continental crust. ... Volcanoes associated with subduction zones generally have steep sides and erupt explosively.
Explanation:
Answer:
possible answer from edge
Explanation:
Subduction zones are formed at convergent boundaries when tectonic plates collide. If one of the plates slides under the other plate, a subduction zone is formed
Definition: This is a condition which is caused when the blood vessels supplying the muscle become blocked, which limits blood flow and can cause damage to the heart muscle.
Example: These range from mild to severe and is one of the top causes of death.
Term: ???
Answer:
Heart attack
Explanation:
my father is a ER nurse for 3 years
This graph shows the number of turtles living in a pond over time.
What happens to the number of turtles over these five years?
The number goes up.
The number goes down.
The number goes up and down.
The number stays the same.
Answer:
A
Explanation:
According to the graph the number goes up of turtles over these five years. Thus, option A is correct.
What is ecosystem?An ecosystem have each and every organism and the relation between physical environment by which they interact. The function of ecosystem is to satisfy the need of humans by supplying them services and goods from nature.
Ecosystem is the branch of science which deals with the study of relationship between living organisms and natural phenomena. Ecosystem is the system in which both living as well as nonliving organisms are present in a particular location.
There are various types of ecosystem such as Grassland ecosystem, Tundra ecosystem, Desert ecosystem, Forest ecosystem. Biodiversity is all the different kinds of life living in a particular area like the varity of animals, plants, fungi and microorganisms like bacteria and virus that plays a major role in framing of natural world usually three levels of biodiversity are observed and these are genetic species, and ecosystem diversity.
Therefore, According to the graph the number goes up of turtles over these five years. Thus, option A is correct.
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What are the main points of the cell theory of life
The main points of the cell theory are:
1. The cell is the SMALLEST living unit of life.
2. The cell is so small is it is not visible to the naked eye.
3. The shape of the cell can vary based on the different lifeforms they are in.
4. The size of the cell also varies.
5. All living organisms or lifeforms are made from cells.
6. Cells originate from a pre-existing cell, in multicellular lifeforms, then the pre-existing cell will divide into many other cells with the process repeating.
7. All cells retain the same properties, such as growth, respiration, and etc.
If the adenine in the 15th position of the sequence is changed to a guanine, the person does not have CF. However, if the thymine in the 14th position is changed to a cytosine the person does have CF. What are some reasons this might occur?
Answer:
Explanation:
Mutation is a sudden heritable change in the genome of an organism.
Substitution is a form of mutation whereby a base pair is been substitued for by another base pair resulting in a serious damage.
Codon are three alphabeth coding for a particular amino acid.
When substitution occurs in a base pair and the replacement forms a protein that has the same function as the one that was removed there will be no observable in the phenotype. Hence, If the adenine in the 15th position of the sequence is changed to a guanine, the person may not have cystic fibrosis.
But when a particular base pair is substituted for and an entirely new protein or amino acids results with a different functions and structure it could lead to a serious damage or healthy issue. Hence, If the adenine in the 15th position of the sequence is changed to a guanine, the person does have cystic fibrosis.
What would happen if no insects were resistant to insecticides?
Two of the most striking examples of resistant insect species are the Colorado potato beetle and the diamondback moth, both of which have developed extensive populations resistant to all synthetic insecticides registered for use against them, as well as biological insecticides like Bacillus thuringiensis.
You push a boulder 6 meters across the yard with a force of 500 N. How
much work have you done?
Answer:
3,000 J
Explanation:
Answer:
You've done 3,000 J
BRAINLIEST FOR FIRST ANSWERRRRRRRRR
Answer:
a
Explanation:
Answer:
Option 3
Explanation:
You have to multiply all of the sides to get the volume, and 9x4x2 1/4= 81
do you guys check the answers? some of the answers are wrong and made me fail my test!
Answer:
some people don't check their answers and just type anything, but i try to make sure my answers are correct
Explanation:
some fossils provide evidence to suggest that earths climate has changed over time ? check all that apply
Answer:
a tempetures
Explanation:
How much did the temperature vary in each city?
Answer:
In Lethbridge, the average high is 6 degress celsius and average low is-6.5 degrees celsius. With a 8.8 degrees celsius temp range. For Halifax, the average high is 3 degrees celsius and the average low is -5.8 degrees celsius. With a 12.5 degrees celsius temp range.
PLEASE HELP AND I WILL GIVE LOTS OF POINTS!!!!!!
What factors do you think might be making it difficult for farmers to treat this disease in their banana plants?
Answer: Panama disease. It's a fungus – known as fusarium wilt – that infects the root system of banana plants and, eventually, kills the plant. There is no cure for the disease, and when one plant is infected, an entire plantation can easily be brought down.
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Explanation: