Answer:
Repeatable
Explanation:
In order to consider a theory valid, it should be repeatable. The correct option is C.
What is a theory?A hypothesis or a set of ideas intended to explain something, especially one based on general principles unrelated to the thing to be explained is referred to as a theory.
A satisfactory theory is always repeatable.
Thus, the correct option is C.
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Can some please help quick!
I need to find the control group for the three experiments.
Please help I’ll give brainliest!!
Answer:
An increase in temperature.
Explanation:
When the temperature rises water evaporates much quicker than if it were just a lightsource hitting the surface of the water. It's like if where really hot outside and you had a pool.The water would start to steam up and evaporate has the temperature rose.
These are true of living things. *
A. The life cycle of many organisms involves development.
B. All living things grow during at least part of their lives.
C. Each tyhpe of organism has a distinctive life cycle.
D. Cells may change in number but never differentiate.
Answer:
The answer is at least B. (I'm not sure if it is a 'choose all that are correct' question)
Explanation:
All living things grow and develop during their lifetime.
What is the concentration of the CaCl2 (calcium chloride) salt solution if you are given 3.2g of CaCl2 and you add 4ml of water? The units for your answer should be mg/ml.
Answer:
800 mg/ml
Explanation:
Recall that: 1 g = 1000 mg.
Hence
3.2 g of CaCl2 = 3.2 x 1000 = 3200 mg CaCl2
mass concentration of CaCl2 = mass of CaCl2/volume of water
= 3200/4 (mg/ml)
= 800 mg/ml
Therefore, the concentration (in mg/ml) of CaCl salt solution formed by dissolving 3.2g of CaCl2 in 4 ml of water is 800 mg/ml.
The concentration of calcium chloride solution will be 800 mg/ml.
The calculation of the concentration of CaCl₂:Based on the given information,
The mass of CaCl₂ given is 3.2 grams. The volume of water is 4 ml.Now the concentration of CaCl₂ can be determined as,
Concentration = Mass/Volume
Now putting the values we get,
[tex]Conc = \frac{3.2 g}{4 ml} \\Conc = 0.8 g/ml\\Conc = 0.8 g * 1000 mg/ml\\Conc = 800 mg/ml[/tex]
Thus, the concentration of CaCl₂ is 800 mg/ml.
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People who tend to perceive the elements of their environment as
separate and distinct from one another are called
A Field-independent
B. Augmenters
C. Reducers
D. Field-dependent
Answer:
The correct answer is A.
Explanation:
Field independence is a cognitive style that people can manifest, it consists of the ability to isolate a certain trait that is perceived as relevant, from the context in which it is integrated, that is, field-independent people usually isolate the different parts that make up the objects or stimuli. Field-independent people are characterized by having analytical and organizational capacities, a more abstract and impersonal orientation and being autonomous in their social behavior.
true or false ? Cell membranes are selectively permeable, allowing only some materials to cross the cell membrane. This
property allows cells to maintain homeostasis.
Answer:
True
Explanation:
Cell membranes are selectively permeable because of the structure of the phospholipid bilayer.
This bilayer only lets certain things in because it depends on the polarity, size, and type of molecule.
For example, glucose molecules are too large to enter. But, carbon dioxide molecules can go in and out easily because of their small size.
Answer:
This statement is True
“One way that a cell maintains homeostasis is by controlling the movement of substances across the cell membrane. The lipid bilayer is selectively permeable to small, nonpolar substances. Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.”
Yosef is playing with a different kinds of rubber bands. Some are very narrow and some are quite wide. Yosef is curious about the rubber bands and develops the following scientific question: Does the width of a rubber brand affect how easy it is to stretch it?
He decides to develop a hypothesis to test this scientific question. What could Yosef’s hypothesis be?
Answer:
If the width of a rubber band is increased, then it will be more difficult to stretch because more force will be needed to stretch it.
Explanation:
Answer:
If a rubber band is narrow, then it will stretch more because it resists less.
Explanation:
Proteins are packaged and transported in the___ *
PLEASE HELP ASAP
At which point is subduction occurring?
1
2
3
4
Answer:
The answer is 4 :)
Explanation:
Please help!! - 1. Is a virus a living organism? Why? 2. Why are antibiotics not good for virus infections? 3. What is the difference between an organ and an organ system? 4. What happens to the other organ systems if one organ system fail? How does this affect homeostasis? 5. What is one body system humans have? What is one body system humans DO NOT have?
Explanation:
No .because virus is molecule.
anti=against
bio=living
organ system is formed from the organs supporting each other process.
because they lost the connection.
immue system.
photosynthesis.
1. No
2. Antibiotics cannot kill viruses because viruses have different structures and replicate in a different way than bacteria.
Antibiotics work by targeting the growth machinery in bacteria (not viruses) to kill or inhibit those particular bacteria.
When you think about it structurally, it makes sense that an antibiotic could not work to kill a virus with a completely different set of replicating “machinery”.
3. An organ is a part of the body that performs a special task to help the organism live while an organ system is a collective group of organs.
4. The breakdown of a particular organ system is not supposed to cause the breakdown of another except it performs a function needed for the other organ system to function.
how does the sea urchin and the sea otter maintain balance and keep the kelp ecosystem healthy
Distinguish the difference between a scientific and non scientific question.
Answer:
A scientific question is one where an investigation can be designed and completed to find out the answer without having to do multiple, entirely different investigations to get there. In a word, a scientific question is testable, but a non scientific question is not.
How is the function of the Endoplasmic Reticulum similar to a structure in a city? Give an analogy. Justify your answer. * 100 points
Answer:
The cell membrane can be compared to the school gates.
Explanation:
Cell membranes only let in specific molecules (people), large substances (old people) cannot cross it while smaller molecules like oxygen (students) can easily pass through the membrane.
Why does air on Earth not move simply in a direct path between the equator and the poles?
Answer:
Why does air on Earth not move simply in a direct path between the equator and the poles? Air does not move in direct paths because of the Coriolis effect. ... Air is deflected toward the southwest in the Northern Hemisphere and toward the northwest in the Southern Hemisphere.
Explanation:
what are building blocks of polymers
Answer:
A monomer is a type of molecule that has the ability to chemically bond with other molecules in a long chain; a polymer is a chain of an unspecified number of monomers. Essentially, monomers are the building blocks of polymers, which are more complex type of molecules.
Explanation:
In 2-3 complete sentences, explain what this tells you about the amount of friction over each of these surfaces
Answer:
can i get a real answer i have this question too
Explanation:
PLEASE ITS EASY!!!!!! please
Answer:
1.group B
2.new sauce
3.amount of gas
4.the new sauce appear to work as it the amount of gas produced in 60% of the people tested.
Choose the best description, definition for Uniformitarianism. Please help im failing badly
Answer:
The correct answer is b. The principle of Uniformitarianism is based on the idea that Earth´s physical landscape is the result of processes and forces that have happened uniformly since the earth formed.
Explanation:
Stated by the geologist James Hutton, this principle says basically that all the geological processes that currently occur had also occurred in the past. Based on this principle, many events might be explained, and not only geological events, but also biological events.
The Uniformitarianism or Uniformism principle states that all the processes that have occurred during the whole Earth history, have been uniform (that is why this principle is named Uniformitarianism) and similar to the current processes.
This principle is very important nowadays, but knowing that not all processes are completely uniform, they have been changing heir intensity and rhythm. Besides, there is a very important factor that is not repeatable, living organisms, that have been lineally changing throughout history.
What was the original source of energy the earth has used?
Answer:
The energy of the sun is the original source of most of the energy found on earth.
I hope this helps you!
Answer:
The energy of the sun is the original source of most of the energy found on earth. We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar (photo-voltaic) cells. The sun heats the earth's surface and the Earth heats the air above it, causing wind.
Explanation:
*Hope this helps*
what is the correct defination of eukaryotic organisms..expalin
I hope answer will be helpful for you
please mark answer is brilliant answer
Thank youStem cells all have the same dna true or false
Yes, stem cells do have the same dna
Since they grow from the same plant
Answer:
true
Explanation:
please me mark as brainlist
what two methods do scientists use to gather information
Answer:
Observation and Experimentation
Read the observation, question, and hypothesis. Then, choose the dependent variable from the list. Observation: Most hummingbird feeders are red. Question: Are hummingbirds attracted to the color red? Hypothesis: Hummingbirds are more attracted to red feeders than nonred feeders. The dependent variable in this case is the color red. hummingbird feeders. hummingbird behavior. bird watching.
Answer:
hummingbird behavior
Explanation:
depends on color of bird feeder
How do you measure the hypothesis?
Answer:
By what the experiment is and compared to the experiment when completed.
Explanation:
3 intersecting lines are shown. A horizontal line contains points R, A, T, S. Another line intersects at point A and also contains D, A, C. Line A B extends away from the center of the other intersecting lines. Analyze the diagram to answer the questions. Another way to name AngleSAC would be Angle . A point on ray AS is . Line segment A R and Line segment A B create Angle
Answer:
CAS
T
RAB
Explanation:
Answer:
c a d
Explanation:
How are water & mineral transported in plants?
Answer:
The xylem.
Explanation:
They are transported by the xylem in the plant.
can lactase enzymes digest both lactose and starch
^^^ the image above plz help ASAP thanks :))
Answer:
CO or carbon monoxide
Explanation:
Remember the first letter each element is capitalized!
ex: Au gold, He helium
so when there are two capital letters you got your self a compound
Which of these structures are found in plant cells but not animal cells? Golgi apparatus Mitochondria Lysosomes Chloroplasts
Answer:
chloroplasts
Explanation:
because chloroplasts help plants to prepare food as they are autotrops
Briefly describe how wind and ocean currents are created and how they affect Earth’s climate.
Answer:
ocean currents are driven by global wind systems that are fueled by energy from the sun.
Explanation: These currents transfer heat from the tropics to the polar regions, influencing local and global climate
i need help, please help
Answer:
whats the name of the unit
Explanation: