Jake set up an experiment. He set two aquariums with five fish of the same type and size. Aquarium one was very small, only one cubic foot. Aquarium 2 was very large at 10 cubic feet. Each day the fish were fed the same amount of food and vitamins, at the end of 5 months Jake measured the fish by length. His results are shown in the bar graph above. What might be the question Jake is asking in his experiment?
A. What fish food cost the most?
B. What fish food makes fish grow faster?
C. Does aquarium size affect growth rate of fish?
D. What type of fish food do fish like the best?
Answers
Once identified the controlled, the independent, and the dependent variables, we can say the question is C. Does aquarium size affect the growth rate of fish?
What is the independent variable?
Refers to all the variables in an experiment that provoke a response in another variable.
An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it.
It changes to analyze its effects on the dependent variable.
What is the dependent variable?Refers to the variable whose response depends on any change in the independent variable. Depending on how the independent variable is modified, the dependent variable changes.
What is the controlled variable?During an experiment, the controlled variables are kept constant. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.
In the exposed example,
the independent variable ⇒ Aquarium size ⇒ 1 cubic foot and 10 cubic feetthe controlled variable ⇒ food and vitaminsthe dependent variable ⇒ fishes growth.The question that Jake is asking in his experiment is Does aquarium size affect growth rate of fish? Option C.
Since he only needs to know how the size of the aquarium affects the animal's growth, he needs to keep constant other influencing variables such as food and vitamins. Otherwise, these other variables might also influence the results.
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Related Questions
Meosis occurs in a ______________ that is a _______________ that undergoes a ___________________
Answers
Meiosis occur in diploid cell that undergoes reductional division.
what is meiosis?Meiosis, also called reduction division, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or germ cells.
The process of meiosis is characteristic of organisms that reproduce through fusion. Such species have in the nucleus of each cell a diploid (double) set of chromosomes, consisting of two haploid sets (one inherited from each parent). These haploid sets are homologous—i.e., they contain the same kinds of genes, but not necessarily in the same form.
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Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed
to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks
and some look like a fine powder.
Which statement correctly describes these broken pieces of the sample?
Answers
Answer:
both statement is correct.......
with a population growth rate of 5% how long will it take for a population to double from 20,000 to 40,000 people?
Answers
Answer:
15 years
Explanation:
Compound growth
Equation:
20000 x 1.05 to the power of how ever many years needed
20000 x 1.05 to the power of 15 takes it just over, with 41578 people alongside decimals.
Therefore, it is 15 years.
Answer:
20 years for the population to double from 20,000 to 40,000
Amir is asked to read this data chart on the Earth’s layers and temperature. Which layer represents the crust?
Data table containing the following four column headings. Layer number, Temperature Range in Celsius, Average Density in Gram per cubic centimeter, and Composition. Four rows are seen with the following readings. Layer 1, 4400-6100, 11.1, liquid nickel and iron. Layer 2, 200-400, 3.0, solid rock. Layer 3, 5000-7000, 12.8, solid nickel and iron. Layer 4, 500-4000, 4.5, molten rock.
A.
Layer 1
B.
Layer 2
C.
Layer 3
D.
Layer 4
Answers
Answer:
b.layer2
Explanation:“Crust” describes the outermost shell of a terrestrial planet. Our planet's thin, 40-kilometer (25-mile) deep crust—just 1% of Earth's mass—contains all known life in the universe. Earth has three layers: the crust, the mantle, and the core. The crust is made of solid rocks and minerals.
hope its help
what is the three kind of volume
Answers
Sphere Volume = 4/3 πr³ , where r is the radius.
Cylinder Volume = πr²h , where r is the radius and h is the height.
Cone Volume = 1/3 πr²h , where r is the radius and h is the height.
Nutrient rich soll is _____.
A) found near the base of mountains
B) found in river deltas
C) usually infertile
D) contains low levels of potassium(K)
Answers
Nutrient-rich soil is the correct answer is- B. found in river deltas.
What is River delta?River delta is a landform that is produced by the deposition of sediments, which are brought by water flowing in the river.
River deltas contain nutrient rich soil because sand from different parts of land is brought by the flowing water, which makes them fertile.
Thus, option B) is the right answer.
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Which organisms are likely to be found in level 1 of this diagram? Select the
two correct answers.
4
600
3
1550
Trophic Level
2
17000
1
340000
O A. Daisy
B. Tiger
O C. Algae
O D. Squirrel
O E. Rabbit
Answers
Answer:
Explanation:
Which organisms are likely to be found in level 1 of this diagram? Select the
two correct answers.
4
600
3
1550
Trophic Level
2
17000
Algae are the primary producer in the trophic levels. Therefore, option "C" is correct.
What are tropic levels?Tropic levels are the levels or steps in the food chain. In tropic levels, the energy is transferred to different levels through food produced by the lower levels. The source of nutrition varies in different food chains.
There are four types of tropic levels, first primary producers are the autotrophs which produce their own food. Second, are herbivores which consume the autotrophs also called primary consumers. Third are secondary consumers who are carnivores and fourth are the tertiary consumers who are also carnivores.
example: sun, plants, deer, and tigers.
Tropic levels play a key role in understanding the flow of energy.
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How do you find the number of electrons for any atom?
Answers
Answer:
To find the number of electrons an atom has, start by looking up the element you're working with on the periodic table and locating its atomic number, which will be in the upper left-hand corner of the square. Then, identify the charge of the ion, which will be written as a superscript to the right of the element.
Hope this helps!
Answer:
the atomic number of an element is simpliy
the amount of electron present in an atom
If you examined the cells of a pigs snout under a microscope, you would see a firm ground substance with tiny cells called
Answers
Answer:
lacuna
Explanation:
cartilage connective tissue has lacuna
The tissue characteristically has spaces or chambers called lacuna (lacunae, pl.)
http://faculty.gordonstate.edu
Based on the section "Zeus Is Helper And Protector," which of the following statements is TRUE? A Zeus and Jupiter are the same god. B Zeus tells rich people to only care for themselves. The Greeks believe Zeus is a powerful god. Zeus does not have the power to punish people. Park Next C D
Answers
Answer:
The Greeks believe Zeus is a powerful god
Energy Pyramids represent the food chain energy and population sizes. Which statement is NOT true.
A. 90% of available energy is lost between each trophic level
B. Populations are smaller as you go up the pyramid
C. Heat is only lost at the consumer levels
D. Decomposers play a role at all trophic levels
Answers
Explain the levels of organization beyond our planet.
Answers
Answer:
there is not much the land and earth could be better-tooken care of
Explanation:
Drag each tile to the correct box.
Arrange the following stages of the testing process.
Developing the test
Planning the test
Documenting the test
Conducting the test
Answers
Answer:
Developing
Planning
Conducting
Documenting
Explanation:
Use Logic
Chemical reactions can create more complex products. What evidence best explains this phenomenon? WILL MARK BRAINLIEST FOR CORRECT ANSWER (100 points)
Water molecules combine to form complex macromolecules that the body needs.
The molecular structure of complex macromolecules show that a chemical reaction has occurred.
Larger macromolecules breakdown into smaller macromolecules and combine during the reaction.
The basic need for oxygen makes the element essential to create macromolecules.
Answers
Answer:
Option C
Explanation:
Larger macromolecules break down like water and create covalent macro molecules.
Later while chemical reactions they combine again to form covalent molecules .
Option C is correct
Does the King Fish have the same organ of respiration as Dolphins do? Justify your answer
Answers
Answer:
Dolphins are mammals, not fish. Unlike fish, who breathe through gills, dolphins breathe air using lungs.
They don't have gills, so they can't breathe underwater like fish. They breathe through a set of nostrils on top of their heads known as a blowhole. While swimming or resting under the water, they can take breathes by exposing only the tops of their heads to the air.
Like all mammals, dolphins have lungs and breathe air. They are the organ of the respiratory system which process the air inhaled through the spiracle.
What are the components of DNA? What’s the structure of nucleotides and how do they connect?
Answers
Answer:
Components of DNA includes ribose sugar, phosphate group and four nucleotides(Adenine,cytosine,thymine,guanine).
Explanation:
DNA is made up of two linked strands that are wrapped around each other in a coiled pattern forming the double helix.Each strand of the DNA is made of a backbone that consist of a ribose sugar and a phosphate group.Each phosphate group is attached to one of the four nucleotides(Adenine,cytosine,thymine,guanine).The two strands of a single DNA molecule are linked by the nucleotides.Adenine and Guanine are called purines.cytosine and Thymine are called pyrimidines.Adenine from one strand makes a double bond with Thymine from another strand linking the two strands of DNA molecule.Cytosine from one strand makes a triple bond with Guanine from another strand linking the two strands of DNA molecule.A picture of DNA and nucleotide structure is attached below.I hope it helps.50 POINTS AND BRAINLY (25 points) IF RIGHT! DO ASAP PLEASE
Match the terms to the definition.
Question 1 options:
The spinning of a planet on its axis, causing day and night.
A group of objects that orbit a star.
A force of attraction that keeps planets orbiting the sun.
Jupiter, Saturn, Uranus, Neptune. Gas giants.
The orbit of a planet around the sun. On Earth, one year.
Huge clusters of stars, gas, and dust bound by the force of gravity.
Mercury, Venus, Earth, Mars. Terrestrial, rocky.
The idea of that the Earth and planets orbit the sun. A sun-centered view.
A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
The theory the universe came forth from a single spot in an enormous explosion.
1.
Big Bang
2.
Doppler Effect
3.
Nebula
4.
Solar System
5.
Geocentric theory
6.
Heliocentric theory
7.
Gravity
8.
Galaxy
9.
Rotation
10.
Revolution
11.
Inner planets
12.
Outer planets
13.
Meteor
14.
Meteorite
15.
Meteoroid
Answers
Matching the terms to their definitions is as follows:
Terms Definitions1. Big Bang The theory the universe came forth from a single spot in an enormous explosion.
2. Solar System A group of objects that orbit a star.
3. Heliocentric theory The idea that the Earth and planets orbit the sun. A sun-centered view.
4. Gravity A force of attraction that keeps planets orbiting the sun.
5. Galaxy Huge clusters of stars, gas, and dust bound by the force of gravity.
6. Rotation The spinning of a planet on its axis, causing day and night.
7. Revolution The spinning of a planet on its axis, causing day and night.
8. Meteorite Inner planets
9. Meteoroid Outer planets
10. Meteor A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
11. Gas giants Jupiter, Saturn, Uranus, Neptune.
12. Terrestrial, rocky Mercury, Venus, Earth, Mars.
Thus, the terms have been matched to their definitions as above.
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explain the role bacteria play in a human body?
Answers
Answer:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins,
Explanation:
why is it an advantage to move food around your mouth before you swallow it?
Answers
Answer:
Because it makes the food more tasty and it's easier to break down the food particles
Explanation:
there's the 5 taste sensory in each part of your tongue and each part of it specializes in a taste, the front of your tongue specializes in sweetness, the middle part of your tongue specializes in saltiness, the upper part of your tongue specializes in sourness and the back part specializes in bitterness.
It also breaks larger particles into smaller particles to reduce the stress of your esophagus.
Which of the following statements about the Hardy-Weinberg principle are true?
Select all that apply.
It assumes certain forces are acting on a population.
It is used to model genetic equilibrium.
It assumes certain forces are not acting on a population.
It is used to model gene flow.
Answers
Answer:
-It assumes certain forces are not acting on a population
-It is used to model genetic equilibrium
It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
Thus, Mendelian genetics are discussed in the context of populations of diploid, sexually reproducing individuals in the Hardy-Weinberg Theorem.
This theorem argues that allele frequencies in a population won't change from generation to generation under a particular set of assumptions.
The anticipated genotype frequencies are p2, 2pq, and q2 if a population has two alleles at a particular site and the allele frequencies are p and q. Once a population is in Hardy-Weinberg equilibrium, its frequency distribution won't vary from generation to generation.
Thus, It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
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What are phenotypes?
________ and _________
WHAT GOES IN THE BLANK
Answers
Answer:
Phenotypes are the two possible options. For example, if you have two parents crossed in a Punnett Square, you're two options for offspring would be Male or Female baby. So, what are your two options? That's what goes into the blanks. Then, you put your ratio.
“*•Pls help me!!!•*”
Answers
Answer:
Cold weather
Explanation:
Drought, large numbers of plants, and heavy wind are all factors which would cause the further spreading of wildfiresWildfires generally take place in hot, humid, and dry weatherHence, cold weather decreases the magnitude of the wildfireOption 3Answer:
Cold weather
Explanation:
I second the other person, thank you! Have a blessed day <3
what do you think might happen to a bird that doesn't have a beak that can be used to eat the food that exists in a certain area?
Answers
Answer:
Down below
Explanation:
The bird would either die, find other food, or evolve to have the beak it needs. It's a matter of natural selection. If the bird doesn't learn that it needs a certain beak, then the species will die off. However, if the bird learns that it needs a certain type of beak, it's species will evolve to have this beak. In the off-chance that the bird doesn't evolve, it will most likely find another source of food to survive.
Hope this helps! If you have anymore questions, I am free to answer them! :D
8. The relationship between the anemone and the boxer crab is an example of
mimicry
mutualism
Oparasitism
O commensalism
Answers
Answer:
The Answer is Mutualism.
Explanation:
...
What would be the answers for 33-34?
33. Look at the following strand. Is this. Chromosome or vene mutation
34. Look at the following strand. What type of mutation?
Please help
Answers
Answer:
chromosome
or venue mutations
Identify the components of blood and describe the function of each component.
Answers
Plasma is the major component of the blood and is largely made up of water, with proteins, ions, nutrients, and wastes thrown in for good measure. The red blood cells are in charge of transporting carbon dioxide. Blood clotting is controlled by platelets. White blood cells are immune system cells that aid in immunological response.
I Will mark Brainliest: Which area is the most common source region for cold, dry air masses that move over NYS? 1) North Atlantic Ocean 2) Gulf of Mexico 3) Central Canada 4) Central Mexico
Answers
Answer:
1
Explanation:
north Atlantis ocean is the most common source region for cold
What is the function of the dendrites of a neuron? A. They pick up signals and send them to the cell body. B. They make more neurons. C. They connect the neuron with other dendrites. D. They process information sent from other neurons
Answers
Answer: A. They pick up signals and send them to the cell body.
Explanation:
50 POINTS!!!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answers
Answer:
Heterotrophs
Explanation:
Protists, plants, fungi and animals alike have heterotrophic cells. This meaning they depend on organic molecules for energy as opposed to plants that can make their food from abiotic factors.
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in
Answers
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in Competition is an relations between organisms or species in which both need a resource that is in limited pool.
What is competition in an ecosystem?Competition will happen between organisms in an ecosystem when their niches overlay , they both try to utilize the exact resource and the resource is in lack of supply.
Fuana contend for chow, water and area to live. flora contend for light, water, minerals and root area.
So,Competition is an relations between organisms or species in which both need a resource that is in limited pool.
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