Micheal wants to test the effect of stomach acid concentration on the solubility of a particular oral medication. Which experiment design setup would best help him answer his question?
Answer:
Prepare solutions of different acid concentrations, measure 50 milliliters of each into different beakers, and place the same type of medication of the same mass into the beaker
Explanation:
The experiment to test the effect of stomach acid concentration on the solubility of a particular oral medication will have the following configuration;
The independent variable = The concentration of the acid to which the medication is added
The dependent variable = The solubility of the medication in the acid concentration
The constant = The medication which is added to the acid concentration
The controls = The fixed mass and type of the particular medication and fixed volume of the different concentrations of the acid samples.
Which of the following happens during the main-sequence stage of a star's life?
It cycles, appearing brighter and dimmer in turns.
It changes the color that it emits.
It increases its distance from the Sun.
It grows continuously smaller and dimmer.
During the main sequence stage of the life cycle of a star, it cycles, appearing brighter and dimmer in turns.
What is the life cycle of a star?The life cycle of a star is a cycle which describes the time from the birth or formation of the star, through its growth and expansion, and then finally the death of the star.
The life cycle of a star occurs in seven stages and occurs over billions of years.
One of the stages is the main sequence stage.
During the main sequence stage of a star's life, it cycles, appearing brighter and dimmer in turns.
Therefore, the life cycle of a star is a cycle from the birth to death of the star.
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A mineral forms from water at the edge of a lake. Which statement best describes this mineral? The mineral formed from lava. The mineral formed through evaporation. The mineral formed when hot water cooled. The mineral crystallized from magma.
Answer:
The mineral formed through evaporation.
Explanation:
Minerals are inorganic substances that occur naturally i.e. not man-made. These minerals are formed in different ways in nature. One of those ways is through EVAPORATION.
Since water dissolves a lot of substances including the particles of these minerals, the mineral components can be found in a dissolved state in water bodies e.g lakes, oceans etc. However, when heat increases and the water molecules evaporate (change to gas), the dissolved minerals in these water bodies crystallize out.
This is what happens when minerals form at the edge of a lake. The water from the lake evaporates leading to the formation of minerals.
Answer:
The mineral formed through evaporation.
Explanation:
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What charge do the hydrogen atoms have in a molecule of water?
Answer:
Positive Charge
Hydrogen Atoms has Positive Charge because the electrons spend more time in the Oxygen than the Hydrogens.
If viruses are not living, how do they cause disease?
Answer:
In an episode of the classic 1950s television comedy The Honeymooners, Brooklyn bus driver Ralph Kramden loudly explains to his wife, Alice, “You know that I know how easy you get the virus.” Half a century ago even regular folks like the Kramdens had some knowledge of viruses—as microscopic bringers of disease. Yet it is almost certain that they did not know exactly what a virus was. They were, and are, not alone.
Explanation:
its in the answer
1.Explain what is happening to the movent of water?
2.what happens to the size of the cell?
If an object is having a constant positive acceleration, what can we assume about the forces on it?
Answer:
If an object has a net force acting on it, it will accelerate. The object will speed up, slow down or change direction. ... If however, the forces are balanced (in equilibrium) and there is no net force, the object will not accelerate and the velocity will remain constant.
The force on the object is unbalanced.
Acceleration is the change in velocity per change in time of motion.
At constant velocity, the acceleration of an object will be zero.Increase in the change of velocity causes increase in acceleration in positive direction.A positive acceleration indicates increase in the motion of an object.According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.
F = ma
If the net force on an object is balanced, the acceleration of the object will be zero because the object will move at velocityHowever, if the force on an object is unbalanced, the object will accelerate.
Thus, we can conclude that the force on the object is unbalanced.
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How might the layers found in sedimentary rock help scientists learn more
about dinosaurs and other extinct species?
Answer:
Layers found in sedimentary rock could help scientists learn more about dinosaurs and other extinct species because each rock layer can be used to time date. The "oldest" being at the bottom and "newest" at the top. A scientist would also be able to tell which organisms lived together by looking at these layers
Explanation:
Need help with this emt class it hard pls smart people only
Answer:
Coast Guard
Explanation:
What is 3meters converted into kilometers
Answer:
0.003
use the KHDUDCM
IT'S AN ACRONYM THAT COULD REALLY HELP YOU..... sorry for the caps. but look up King Henry died usually drinking chocolate milk for help with converting
How did endosymbiosis impact the structural differences between bacteria, animals, plants and fungi?
Answer:DNA, RNA, Ribosomes and Protein Synthesis
This provided the first substantial evidence for the endosymbiosis hypothesis. It was also determined that mitochondria and chloroplasts divide independently of the cell they live in.
Explanation:
What role did endosymbiosis play in the evolution of eukaryotes? Endosymbiosis led to the evolution of eukaryotic cells with mitochondria and chloroplasts. This kind of natural selection led to the evolution of eukaryotic cells and the plants and animals we see today.
Meat tenderizer contains an enzyme that interacts with meat. If meat is coated with tenderizer and then placed in a refrigerator for a short time, how would the enzyme be affected?
Answer:
The enzyme would be deactivated.
Explanation:
Enzymes are usually deactivated by low temperatures.
Enzymes are proteinous in nature, function by catalyzing biological reactions, and have a particular range of temperatures where they function optimally. Above these temperatures, the catalyzing attribute of enzymes gradually declines till they are denatured by high temperature and below the optimal temperature, their catalyzing attributes also decline. However, instead of being denatured by very low temperatures, they become deactivated instead.
What is the meaning in life it seems so pointless??
Answer:
To be happy
Explanation:
Honestly If you are happy then life is good, what do you crave in life... go after it
Differentiate between the parts of an atom?
Answer:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons.
Explanation:
An element is a substance that is made entirely from one type of atom. ... A compound is a substance made from two or more different elements that have been chemically joined.
How does the shape of a plant cell aid in
the growth and support of the plant?
Answer:
Plant Cell Structures
Explanation:
The large central vacuole is surrounded by its own membrane and contains water and dissolved substances. Its primary role is to maintain pressure against the inside of the cell wall, giving the cell shape and helping to support the plant.
Answer:
Hmm.
Explanation:
How does the shape of a plant cell aid in
the growth and support of the plant?
'The cytoskeleton is a network of filaments and tubules found throughout the cytoplasm of the cell. It has many functions; it gives the cell shape, provides strength, stabilizes tissues, anchors organelles within the cell, and has a role in cell signaling.'
Bacteria are surrounded by?
Answer:
Structurally, a typical bacterium usually consists of (1) a cytoplasmic membrane surrounded by a peptidoglycan cell wall and maybe an outer membrane, (2) a fluid cytoplasm containing a nuclear region (nucleoid) and numerous ribosomes; and (3) often various external structures such as a glycocalyx, flagella, and pili.
Explanation:
What is one observation that could be made to support the idea that two rock layers
are the same age?
A.layers with different fossils
B.layers of equal density
C.layers made of the same chemicals
D.layers with similar fossils
I need help this is about hypothesis
Write the balanced equation for cellular respiration. Include the common names of
each compound
Answer:
C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.
Explanation:
First one to answer gets BRAINLEIST! :D
Answer:
B and D
Explanation:
the building block (monomers) of dna are?
Answer:
nucleotides are the monomers of dna
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.
Similarities in animal and plant kingdom
Plant fibres obtained from _____________ and ___________.
Answer:
Plants fibers are obtained from cotton plants and jute plants.
Explanation:
Which of the following has no membrane-bound organelles and can reproduce asexually?
А
eukaryote
B
yeast
С
prokaryote
D
algae
A ____ is any part of the experiment that can vary or change during the experiment. A. control B. variable C. temperature D. hypothesis
Answer:
D.
Explanation:
Your hypothesis can and will most likely change during the activity.
All materials,weather solid,liquid or gas are made of?
They are all made of atoms!
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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:
How does an organisms life begin?
Answer:
Living organisms undergo growth and development. Every living organism begins life as a single cell.
Answer:
The life of an animal organism, obviously, begins at conception. But human life begins only at the moment that the animal has a mind. In some, very fast, developers this can happen before the age of one year; in a large majority of cases this happens between two and three years of age.
Explanation:
A tide table shows the date, time, and height of the predicted tides. What type of tide is the following table representing, semidiurnal, mixed semidiurnal, or diurnal? Date Day Time Height 11/30 Mon 11:58 am 6.34 H 11/30 Mon 11:43 pm 2.16 L 12/1 Tues 11:01 am 6.27 H 12/1 Tues 11:30 pm 1.99 L
Answer:
the date
Explanation:
A tide table shows the date, time, and height of the predicted tides. The type of tide that the given table represents is mixed semidiurnal.
What is a mixed semidiurnal tide?A mixed semidiurnal tide is a tide that has two high tides and two low tides of different magnitudes in each day. The interval between consecutive high tides or low tides is almost the same.
The height of the tides changes every day due to the gravitational pull of the Sun and the Moon on the Earth's ocean water. The influence of the Moon on tidal patterns is more significant than that of the Sun.
Therefore, a mixed semidiurnal tide is the one with two high and two low tides of different magnitudes in each day, which is represented by the given tide table. All of these characteristics indicate a semidiurnal tide pattern.
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