Mr. Rojas, a biology teacher, asks his class to evaluate two examples of changes to a pond ecosystem. The table summarizes the examples. Example 1 Example 2 Original pond community algae, cattails, a variety of fishes, ducks, raccoons algae, cattails, a variety of fishes, ducks, raccoons Change to the ecosystem increase in nitrogen and phosphorus content of the water, due to agricultural runoff decrease in the duck population, due to hunting by humans Result after one year an algal bloom that covers the surface of the pond, followed by a decrease in all animal populations Little or no effect; duck population returns to previous levels after one year Based on the results shown in the table, Mr. Rojas's class can evaluate which property of the pond ecosystem?
Answers
Answer: the resilience of the pond ecosystem to different types of changes
Explanation:
The property of the of the pond ecosystem that Rojas's class can evaluate is ;
The Resilience of the ecosystem ( pond )
Given the various changes faced by the pond ecosystem and the response to the varying changes the property that the students should most likely study/evaluate is the Resilience level of the pond ecosystem to the changes.
Resilience is the ability of a substance or system to respond/recover positively from negative changes or disturbances faced by the system just like the pond ecosystem
In conclusion The property of the of the pond ecosystem that Rojas's class can evaluate is ; The Resilience of the ecosystem ( pond ).
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Related Questions
Different plant species require different amounts of direct sunlight in order to flower. A student designed an experiment to determine the length of exposure to direct sunlight necessary for a specific plant species to produce flowers. The student collected the data below.
0 hours, 0% with flowers
9 hours, 0% with flowers
1 hour, 0% with flowers
5 hours, 90% with flowers
3 hours, 80% with flowers
7 hours, 10% with flowers
Identify the:
independent variable-
dependent variable-
control group-
experimental group-
constant-
Answers
Answer:
Independent variable: LENGTH OF EXPOSURE TO DIRECT SUNLIGHT
Dependent variable: PRODUCTION OF FLOWERS
Control group: THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours
Experimental group: THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT
Constant: THE SAME PLANT SPECIES
Explanation:
Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the experimenter exposes the specific plant species to sunlight at different length of time, hence, the LENGTH OF EXPOSURE TO DIRECT SUNLIGHT is the independent variable.
Dependent variable is the variable which is measured in an experiment. In this experiment, the measured/dependent variable is the PRODUCTION RATE OF FLOWERS by the plant species.
Control group is the group in an experiment that does not receive the variable being tested. In this experience, the control group is THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours
Experimental group is the group of am experiment that is exposed to the experimental treatment (sunlight). In this case, the experimental group is THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT.
Constants are variables of an experiment that must be kept unchanged for all groups throughout the experiment in order not to affect the experiment's outcome. In this experiment, the constant is THE SAME PLANT SPECIES used,
If I were to make hot cocoa which consists of chocolate syrup and milk, identify the solution
a. chocolate syrup
b. milk
c. none of the above
d. hot cocoa
Answers
Before deciding on a medium to use, what should the presenter do?(1 point)
compare the strengths and limitations of each medium
decide on the number of still or moving images they need
know the age and size of their audience
chose the form they feel most comfortable with
Answers
Answer:
♡ madeline here! ♡
- -it's c ʕ •ᴥ•ʔ
hope I could help! have a great day
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
.
Explanation:
Answer:
A) Comparing the strengths and limitations of each medium
Explanation:
That's what is said on the lesson and this is 100% right!
In the following diagram of boiling water, what is causing the rising and sinking of the water?
A electromagnetic radiation from the atmosphere
B the insulation of water due to its high heat capacity
C convection from the movement of liquids and gases
D conduction from the fire underneath the pot
Answers
Answer:
B.
Explanation:
the insulation of water due to its high heat capacity
How do you know that energy and matter are conserved during the process of cellular respiration?
Answers
Answer:
Energy and matter are conserved in cellular respiration because it has identifiable inputs and outputs. These can be modeled with chemical equations.
Food undergoes chemical reactions in organisms to generate new molecules for growth or energy. Therefore, energy and atoms are conserved during cellular respiration.
What is conservation of energy and matter in cellular respiration?The law of conservation of energy states that energy cannot be created or destroyed but can be changed from one form to another. The law of conservation of matter states that the total mass within a closed system that does not allow matter or energy to escape should remain constant. However, the law of conservation of energy states that energy can change from one form to another.
The process of cellular respiration is an example of a chemical reaction, which involves the transformation of one type of matter into another. A chemical equation describes this change in molecular structure. This is the cellular respiration chemical equation:
[tex]C_{6} H_{12} O_{6} + 6 O_{2} = > 6CO_{2} + 6H{2}0 + energy[/tex]
(Glucose + Oxygen yields Carbon Dioxide + Water + Energy)
Therefore, the amount of carbon dioxide atoms released by respiration is the same as the amount of atoms in the oxygen and carbon that were changed.
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Messenger RNA (mRNA) contains the instructions for —
A. building mitochondria
B. protein assembly
C. DNA replication
D. RNA synthesis
Answers
16
Select the correct answer.
Which type of evidence is often reviewed in microscopy?
OA physical evidence
OB.
trace evidence
OC. personal experience
OD
testimonial evidence
OE.
circumstantial evidence
Answers
Answer:
B. Trace Evidence
Explanation:
Trace evidence is like fiber or hair or gunshot residue to it would be B. Trace evidence
The physical evidence and trace evidence are both reviewed under microscopy. Therefore, option A and option B are correct statements.
What is microscopy?Microscopy is a technique to review the smaller size object at high magnification. Forensic science uses the physical or trace evidence found at the crime scene to review under microscopy.
Physical evidence refers to the tangible objects found at the crime scene, such as murder weapons or tool marks. On the other hand, trace evidence refers to the small or even microscopic pieces of evidence left at the crime scene, such as hair, or DNA.
Using the microscopy technique, the forensic team can determine the source of the murder weapon used at the crime scene or even link the suspect to the death of the victim. However, other types of evidence that do not come under microscopy, such as testimonial evidence or circumstantial evidence are also used to build a strong case against the suspect.
Therefore, the physical evidence and the trace evidence both are reviewed under microscopy.
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Which statement best explains the shape of these layers of rock?
O A. Stress caused by forces that pull on both sides of an area of the
crust made the rock melt.
O B. Stress caused by tectonic plates moving at a transform boundary
made the rock break.
O C. Stress caused by a collision between two tectonic plates made the
rock bend
O D. Stress caused by the weight of the upper layer of rock made the
rock tilt
Answers
Answer:
C. Stress caused by a collision.........made the rock bend.
Answer:
C. Stress caused by a collision between two tectonic plates made the rock bend
Explanation:
what is the average for a human piens A 2.inc B 4inc C 10 inc D 1 feet
Answers
Answer:
I'm gonna have to go with B 4 inches
Explanation:
it is B cause I'm below average and no one is longer than 10 inches
When the accused enters into plea bargaining, the judge and prosecutor do not have to hold a trial. True or False
Answers
Answer:
True
Explanation:
Answer:
False
Explanation:
Put true on edge got it wrong its false
I want to know know know know
what is love ☕
Answers
Answer:
Love = Silence
Explanation:
Because sometime you can't tell someone how you feel so you have to keep your love silenced.
The human genome project was produced an area of science known as bioinformatics. how is this helpful in sequencing DNA?
Answers
Bioinformatics is a subdiscipline of biology/computer science concerned with the acquisition, storage, analysis, and dissemination of biological data. This helps organize and determine nucleotides of a given DNA molecule from known data about biological data through computer sustems.
** The Human Genome Project increased speed of DNA sequencing and lowered the cost. Basically made it more efficent.
Check out Bioinformatics lectures and websites! You will gain a better understanding of how this is helpful for sequencing DNA.
List the six kingdoms, characteristics of each, and an example of an organism that belongs in each kingdom.
Answers
Answer:
Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria.
Explanation: Plant=flower
Animal=deer
Protists=giant kelp
Fungi=mushroom
Archaebateria=Aeropyrum pernix
Eubacteria=E. coli
;)
The six kingdom of the organisms are Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria.
What is kingdom?The eight major taxonomic ranks of biological classification. A domain is made up of one or more kingdoms.
Animals, plants, fungi, protists, and archaebacteria and eubacteria are the 6 kingdoms of living things.
Bacterial Kingdoms and Archaean Kingdoms: These are prokaryotic ones and not posses a well developed nucleus. Example bacteria.Protists: These are eukaryotic which can be unicellular or multicellular. Example: amoebaFungi: These are also eukaryotic having single or many cells including yeast. They are not capable of photosynthesis.Plantae: These are photosynthetic eukaryotes which are primary producers. Example all plants.Animalia: these are heterotrophic eukaryotes which include all animals.Thus, these are the six kingdoms including their characteristics.
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16 An organism with a cell wall would most likely be unable to take in materials through
A) osmosis
B) facilitated diffusion
C) active transport
D) endocytosis
Answers
Answer:
endocytocis
Explanation:
How do animals return water to their environment from their bodies?
Answers
Answer: Animals excrete water by respiration and by passing urine.
True or False?
Chemistry is about patterns. The Periodic Table contains, demonstrates, and reveals those patterns.
Answers
Answer:
Are metals and non metals
Which of the following is a pluton?
A. Pyroclast
O
B. D*ke (it's a type of rock not the slur)
O
C. Lahar
O
D. Lava flow
Answers
Answer:
The correct answer is d*ke
Explanation:
I tried the other answer and got it wrong, this was the right one on the test.
PLEASE HELP ME!!!!!!
What happens to the muscles when the weight is lowered?
Answers
Answer:
C is the answer to the question
7(c)(i). The diagram 7.2 shows the materials used by Claudia for preparing
tea. Claudia finds that the colour of the tea is light. Why? *
Answers
Answer: Because she used cold water
Explanation:
Tea leaves contain different flavors that dissolve in water to give it its distinct taste as well as its color. If water is hot, the flavors will dissolve quickly due to the fast movement of the heated water molecules.
If the water is cold however, as is the case in the above scenario, the flavors will take longer to dissolve in the water which means that the tea's color will not change drastically leading to a light tea.
what element has 7 protons and 5 neutrons?
Answers
The following are all examples of changing motion EXCEPT
a
A golf ball stops after rolling up a hill.
b
A race car travels around an oval track at a constant speed of 180 miles per hour.
c
A bowling ball travels in straight line down a bowling alley at a constant 3 meters per second.
d
A ball rolls against a wall and bounces away at 3 meters per second.
Answers
Answer:
It is B
Explanation:
I had this on my test last week
How many different kinds of atoms does an element contain?
A) 2
B) 1
C) 8
D) 4
Answers
Answer:
an element contain 2 atoms
Answer: Your just a kid who doesn't know anything
The nitrogen, oxygen, and other gases surrounding Earth
A.are pulled toward Earth by gravity
B.are found mainly near the outer edge of the atmosphere
C.exert pressure only at sea level
D. exert pressure that works against atmospheric pressure
Answers
Answer:
option A is correct
Explanation:
Why is the production possibility curve drawn as a bowed-out curve?
Answers
Answer:
he downward slope of the production possibilities curve is an implication of scarcity. The bowed-out shape of the production possibilities curve results from allocating resources based on comparative advantage.
Explanation:
What is the correct answer?
Answers
Answer:
The object is at rest.
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Which factor would have the greatest influence on the southern migration of animals living in the northern hemisphere
Answers
Answer:
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology. It is found in all major animal groups, including birds, mammals, fish, reptiles, Many of these migrations are north-south, with species feeding and breeding in.
A glucose molecule is to carbohydrates as a ___ is to nucleic acids.
Answers
Answer:
nucleotides
Explanation:
glucose is a monomer of carbohydrates so we just have to figure out what the monomer for a nucleic acid is.
What eats a parrotfish? Does a great white shark count♂️
Answers
Answer:
Shark eats a parrotfish. No but help to maintain the populations of the next-biggest predators in the food chain.
Explanation:
is centrioles a plant or animal cell?
Answers
Answer:Animal cells but some plant cells also have it.
Explanation:
How are organisms able to generate ATP without oxygen?
Answers
Answer:
Without oxygen, organisms can split glucose into just two molecules of pyruvate. This releases only enough energy to make two ATP molecules. ... This releases enough energy to produce up to 38 ATP molecules. Thus, aerobic respiration releases much more energy than anaerobic respiration.