Answer:
Observations; control.
Explanation:
A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.
On the other hand, a control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
Hence, science rejects any hypothesis not supported by observations and the results of control experiments.
This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.
PLS HELP A student has four snails, four sprigs of Elodea, eight test tubes of bromothymol blue, and two rooms (light and dark). The student wants to know what gases are produced by the snails and Elodea in light and dark conditions. Assuming the student only has time for one experiment, what setup will yield the most complete data? All test tubes contain bromothymol blue. Experiment 1: Light room with test tubes A to D. A contains 1 snail. B contains Elodea. C is empty. D contains 1 snail and Elodea. Dark room with test tubes E to H. E contains 1 snail. F contains Elodea. G is empty. H contains 1 snail and Elodea. Experiment 2: Light room with test tubes A to D. Each test tube contains 1 snail. Dark room with test tubes E to H. Each test tube contains Elodea. Experiment 3: Light room with test tubes A to D. Each test tube contains 1 snail and Elodea. Dark room with test tubes E to H. Each test tube is empty. Experiment 4: Light room with test tubes A to D. A contains 2 snails and Elodea. B contains 1 snail. C and D are empty. Dark room with test tubes E to H. E contains Elodea. F contains 1 snail and Elodea. G and H are empty. a. Experiment 1 b. Experiment 2 c. Experiment 3 d. Experiment 4
Answer:
Its A Experiment 1
Explanation:
Why can't two person's from the same family have children together?
Answer:
They can have children together. If they are married or in a relationship they can do anything they want together including the want of children.
Explanation:
What is one way to analyze the results of an experiment?
Answer: One way to analyze the results of an experiment by looking at the chemical and physical changes. Signs of a chemical change are bubbles or production of an odor. Signs of a physical change are change in color, shape, or size.
What element is always present in a nucleic acid but is never present in a carbohydrate or amino acid
Carbon Sulfur
Proteins Always Sometimes
Carbohydrates Always Never
Nucleic Acids Always Never
Lipids Always Never
Black walnut trees produce a nontoxic chemical that becomes highly toxic when it is exposed to air or soil. How does this chemical help black walnut trees compete with plants growing nearby?
Answer:
By attracting herbivores to the other plants
Explanation:
URGENT!!
please help me solve this i really don’t understand it
7,351 round to nearest hundred
Answer:
7 400
Explanation:
7, 351
7 is the thousands
3 is the hundreds
5 is the tens
1 is the unit
to round of to the nearest hundred look at both the hundreds value and the tens value.
since the tens value is 5 , this means the hundreds value increases by 1.
therefore 3 turns into 4
7351 to the nearest hundred is 7400
what caused the movement of ocean currents?
Answer:
The heating up and cooling down of water. The winds also have effects
Explanation:
What type of transport involves the movement of a substance from high to low concentration directly across the membrane? *
Answer:
Passive Transport
Explanation:
Diffusion is a type of passive transport. Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm).
Explore the following website:Save The Pacific Northwest Tree Octopus What have the authors done to make the site look valid? What indications are there that the Pacific Northwest Tree Octopus is not real? Give three examples for each answer.
Answer:
They tried to make it look credible by listing the author and contacts and stuff but do not have any official sources. They are photo edited pictures from other people.
Explanation:
i added pictures from the web site and made note of added tiny details.
Please help me answer this as fast as possible!!!!
Answer:
Are the basic unit of life.
Explanation:
Well, every organism is made up of cells. Thus, they are the basic units of life.
Random Fun Fact:
BTW i thought this was worth mentioning, did you know that humans share 70% of their DNA with a slug?
Do autotrophs need to carry out cellular respiration? Why or why not?
Answer:
Yes, autotrophs need to carry out cellular respiration.
Explanation:
Autotrophs make their own food. ... Many autotrophs make food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. All organisms use cellular respiration to break down glucose, release its energy.
How do you think a computer virus compares to a real virus!
Answer: A computer virus compares to a real virus because they both take over whatever they're destroying. It copies itself and typically has a detrimental effect. And it can be caught without even knowing it!
A computer virus can self replicate just like a real virus.
-Hope this helped<3
Answer: They're both a mass attack.
Explanation:
They both mass attack a certain thing. Like a virus contracts only humans and basically living things. Computer viruses are, well, contracted to computers.
Coastal wetlands are ecologically important because they do all of which of the following a. reduce the impact of storms coming inland b. harbor a low level of biodiversity c. help to destroy nutrients d. provide important habitats for only terrestrial species e. repel large aquatic reptiles
Answer: The answer is e
Explanation:
WILL MARK BRAINLIEST!!!1PLZ HELP!!!
Answer:
gamma rays, ultraviolet waves, microwaves
Explanation:
Which amino acid is least likely to form hydrogen bonds?
Answer:
6 amino acids
Explanation:
6 amino acids (asparagine, glutamine, histidine, serine, threonine and tyrosine) have both hydrogen donor and acceptor atoms in their side chains.
As seen from Earth, what causes the Moon to change its apparent shape throughout the month?
Answer:
The Moon doesn't emit (give off) light itself, the 'moonlight' we see is actually the Sun's light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape.
Explanation:
What's the independent and the dependent variable ??
Answer:
ruler
Explanation:
8
During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cellular processes. In
order for this to occur, which of the following statements must be true?
tho honds of the fond molecules.
Answer:
B.) New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken.
Explanation:
I hope it helped
Which of the following is NOT true of saturated and unsaturated fats? A. Saturated fats are saturated with hydrogen while unsaturated fats are not because they do not have electrons available to bond with hydrogen. B. Saturated fats can pack more tightly and form solids at room temperature while unsaturated fats are liquid at room temperature. C. Saturated fats, because they lack double bonds between their carbon atoms, stay liquid at room temperature while unsaturated fats form solids.
Answer:
Saturated fats can pack more tightly and form solids at room temperature while unsaturated fats are liquid at room temperature.
The statement which is NOT true about saturated and unsaturated fats is Choice C: Saturated fats, because they lack double bonds between their carbon atoms, stay liquid at room temperature while unsaturated fats form solids.
Generally, fats are classified as either Saturated or Unsaturated fats.
Saturated fats are fats which are saturated with hydrogen, and consequently have only single C-C bonds.Contrarily, unsaturated fats are not saturated because they lack available electrons to bond with hydrogen and consequently, have double bonds between successive Carbon atoms in their structure.As a result of the statements above;
Saturated fats can pack more tightly and form solids at room temperature while unsaturated fats are liquid at room temperature.Inference from the statements above therefore suggests that the statement which is not true is Choice C: Saturated fats, because they lack double bonds between their carbon atoms, stay liquid at room temperature while unsaturated fats form solids.
Read more;
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When scientists carefully measure the lichens and agree on their thickness and how often they appear which parts of the scientific cycle are scientists using
Answer:
This question is incomplete; the complete question including the options are as follows:
During a study of lichens and air quality in part of China, scientists measure the thickness of lichens and estimate how many rocks and trees are covered with lichens in one town. The scientists are following the scientific cycle of observing while using a systematic process, establishing facts, explaining facts, and then returning to the systematic process to collect more facts.
When scientists carefully measure the lichens and agree on their average thickness and how often they appear, which parts of the scientific cycle are the scientists using?
A- process and facts, because they are using a systematic method to measure and then record data
B- process and facts, because they are observing lichens and air quality and describing why they are related
C- explanation and process, because they are using a systematic method to measure and then record data
D- explanation and process, because they are observing lichens and air quality and describing why they are related
The answer is A. process and facts, because they are using a systematic method to measure and then record data
Explanation:
Scientific experiments follow a series of well coordinated steps. These steps range from making observations to analyzing data. In this experiment, which involves scientists conducting a study of lichens and air quality in a part of China, a scientific cycle is being followed.
However, the scientists get to a point where they carefully measure the lichens and agree on their average thickness and how often they appear. This point is where the ANALYSIS OF DATA in the experiment occurs. Therefore, the part of the scientific cycle they are using is PROCESS and FACTS, because they are using a systematic method to measure and then record data.
Bonnie rode her skateboard 200 meters in 30 seconds. How fast did she travel? *
In your own words, recognize that theories do not become laws and laws
do not become theories.
Describe the difference in how a monosaccharide and polysaccharide are digested
Answer:
polysaccharides from cells walls make up the fiber humans eat, while monosaccharides provide the sweetness in food. As humans eat, chewing breaks down polysaccharides into smaller particles that eventually, through digestion, yield up the simple monosaccharides that can pass into the bloodstream
Quantitative data measures categories like color or movie genre.
True
False
Answer:
[tex]\boxed {\tt False}[/tex]
Explanation:
First, let's define quantitative data.
Quantitative data is
Data that can be expressed as a number or a quantity. This type of data can be measured, for example: length, temperature, time, etc.There is also another kind of data, called qualitative data.
Qualitative data is
Data that is expressed with descriptions. This type of data is observed. Examples include: colors, smells, tastes, etc.We are asked about color and movie genre. This can't be measured or expressed as a number, so it is not quantitative data. Instead, it is qualitative data.
which of the following are protective barriers that are part of the body's immune system
What is urea? A. a structure in the kidney B. the tube that connects the kidney to the bladder C. the tube through which waste leaves the body D. the waste removed by the kidney
Will give brainlest
The answer is C
The tube through which waste leaves the body.
Answer:
D.
Explanation:
Urea is the waste removed by the kidney.
In the periodic table, Groups are_____ columns.
Answer:
Vertical
Explanation:
Biology class :)
In a water molecule, shared electrons spend more time
around the oxygen atom than the hydrogen atoms. As a
result, the oxygen atom is
slightly negative.
• very negative.
slightly positive.
• very positive
ANSWER FAST PLEASE According to Dalton’s theory, why are carbon and oxygen differ.ent elements?
According to the Dalton's theory, carbon and oxygen are different elements because they are made up of different atoms which have different numbers of proton and neutrons.
What is Dalton's theory?John Dalton proposed his modern theory of atoms in 1803. He discovered atom, which is the smallest unit of particle. This theory is also known as the atomic theory of matter.
In this theory, he stated that every single atom of an element, such as sodium, is same as the other atoms of the same element. He also stated that the atoms of one element differ from the atoms of other elements. This theory is mostly found to be true. For example: A sodium atom is different from a carbon atom.
However, his theory was found to be found as the atoms present in the elements are found to be divisible into even smaller particles like protons, neutrons, and electrons.
Learn more about elements here:
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