Answer:
b
.........................................................................................................................................................
what is nonpoint source pollution?
A) pollutants that are found in deep water
B) pollution that comes from a source that can't be tied to a specific location
C) pollutants that are discharged from a specific location
D) pollution in the atmosphere that blocks the sun
Answer:
Pollution that comes from a source that can't be tied to a specific location.
Explanation:
Hi i need help fast its biology where does nitrogen from the atmosphere go before it enters a plant
Answer:
The nitrogen goes through the roots of a plant.
Pablo and Johanna must complete a yearlong study for their biology course. After some discussion, they decide to compare dog diets. To test their hypothesis that the local veterinarian's special dog food mix will enhance growth and development, each student adopts a puppy from the local pound. Pablo plans to feed his goldendoodle the special diet, while Johanna plans to use generic dry kibble from the supermarket for her bulldog. Pablo and Johanna have too many ________.
Pablo and Johanna have too many independent variables.
In order to conduct an experiment, 3 kinds of variables are used. These are:
Dependent variable Independent variable Control variableA dependent variable is a variable that the experiment seeks to observe and measure, this variable is expected to change in value throughout the experiment and depends on other variables. An independent variable is one that the researcher changes throughout the experiment in order to see what effect it will have on the dependent variable. Finally, the control variable is the variable that remains the same throughout the experiment in order to limit the influence they will have on the outcome. If the value we wish to measure changes, the presence of control variables helps to narrow down and correctly credit the cause of this change, leading to a valid experiment.
In the situation given, Pablo and Johanna have too many independent variables. The dependent variables that Pablo and Johanna wish to measure are dog growth and development. The independent variable is the one they change in order to see what effect it will have on the dependent variable, in this case, the dog food. However, the experiment would not be valid because the breed of dog should be a control variable to ensure correct data, given that different breeds of dogs grow and develop at varying rates. This variable is instead an independent variable in this given experiment, given that it changes between the two groups and will affect the outcome.
For more on experiments and variables see:
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What does it mean to be alive? On the lines below, list
characteristics that you think living things have. Then read the
lesson to learn what you have in common with other living
things.
what name is given to bacteria that can cause an infection?
List and define the classification groups from the smallest to the largest
Answer:
species, genus, family, order, class, phylum, kingdom, domain
Explanation:
At the start of the lab, you will test known samples in order to see what positive and negative test results look
like.
Pre-Lab Question 4: Why is it important to know what a negative test result looks like?
I
Answer:
I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.
Biodiversity means that all living things are the same. True or False
Answer:
False
Explanation:
Bio: life
Diversity: variety, differences
Examine the following genetic sequences and determine which pair are the most similar based on their ED (evolutionary distances). Species 1 = ATTGGCCATT Species 2 = ATTCCGGTTT Species 3 = TTTGGCCATT Species 4 = ATTCCCCCCC Multiple Choice Most similar are: Species 1 = ATTGGCCATT Species 3 = TTTGGCCATT Most similar are Species 2 = ATTCCGGTTT Species 3 = TTTGGCCATT Most similar are Species 3 = TTTGGCCATT Species 4 = ATTCCCCCCC Most similar are Species 1 = ATTGGCCATT Species 4 = ATTCCCCCCC
Answer:
ATC-75/w
Explanation:
Mrs. Cruz has blood type A, while his husband Mr. Cruz has blood type B. Their first and second child is type A and type B respectively. What is/are the other blood type/s of their offspring?
Answer:
It may be AB
That is the possibility..
4. A(n) _____ is a logical interpretation based on prior knowledge or experience. a. inference b. observations c. hypothesis d. theory
Answer:Inference
Explaination;
explain why oxygen and glucose need to be absorbed and waste products need to be removed
Explanation:
Oxygen and nutrients from food must be absorbed into the bloodstream to be delivered to cells for respiration. Waste materials such as carbon dioxide must be removed from cells into the bloodstream. Tissues contain capillary networks to allow these exchanges to occur at a cellular level.
Oxygen and glucose needs to be absorbed and waste products need to be removed for the proper functioning and maintenance of the body cells and systems.
Oxygen is an odor less and colourless gas that is needed by living organisms.
It is absorbed by living organisms because it serves as a source of fuel.
Glucose is a type of carbohydrate called monosaccharide which is gotten from food.
It is assimilated or absorbed into the body through the hormone insulin and serves as a source of energy.
Waste products of metabolism is removed from the body through the process of excretion. A typical example is the carbondioxide.
If Waste products are allowed to accumulate they cause poisoning which slows down vital chemical reactions.
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Which of the following describes an ionic bond?
two atoms with positive charges attracting one another
two atoms with opposite charges attracting one another
two atoms sharing one or more valence electrons
two atoms that collectively have more neutrons than protons
Answer:
Second option I think
Explanation:
Answer:
2nd one im sure
Explanation:
their opposite
which is mostly studied by meteorologists plzz help :(
A. weather
B. Volcanoes
C. Rocks
D. Fossils
What DNA analysis can be used to determine species of a particular animal? For example, dolphins.
Answer:
Scientists identify an animal species from a sample of its DNA using a specific gene, known as cytochrome c oxidase
Why is it important for scientists to state a conclusion?
Answer:
I'd say a
Explanation:
A conclusion is just reiderating their points, not really proving reliability to other scientists. A conclusion wouldnt be to make an educated guess, either. it could possibly be c too, but i dont think concluding comments would be to explain exactly why it was performed, more like an end note and close to all their points. I'd go with a.
for the below image, label the 13.polar area and 14. non- polar area on the diagram
Answer:
LOOK AT THE ATTACHMENT
Explanation:
Which book asserted that due to the expanding human population, the ecosystem will collapse by the middle of the twenty-first century?
Answer: Hello There!............
Dennis Meadow's, the limits to growth, asserted that due to the expanding human population, the ecosystem will collapse by the middle of the twenty-first century.
Explanation:
Mark me brainest please. Hope this helps. Anna ♥
Is water an organic molecule? why or why not?
Answer:
Organic molecules associated with living organisms are also called biomolecules. Organic compounds are molecules that contain carbon atoms covalently bonded to hydrogen atoms (C-H bonds). ... Water (H2O) has no carbon; then, it is not an organic compound.
find 5 different fruits or veggeles to rest dense or less dense then water
Answer:
because. it is thekejejd
The picture above is an example of what type of tissue?
Answer: Epithelial Cell
Explanation:
The given picture above is an example of epithelial tissue. Option 3 is correct.
Epithelial tissue is a type of tissue that covers the outside of the body and lines the inside of organs and cavities. It is made up of tightly packed cells that form a continuous sheet. Epithelial tissue has many functions, including:
Protection: Epithelial tissue protects the body from harmful substances and pathogens.Secretion: Epithelial tissue secretes substances such as mucus, sweat, and tears.Absorption: Epithelial tissue absorbs nutrients and other substances from the environment.Excretion: Epithelial tissue excretes waste products from the body.There are four main types of epithelial tissue:
Simple squamous epithelium: This type of epithelium is made up of a single layer of flat cells. It is found in the lining of the blood vessels, lungs, and kidneys.
Simple cuboidal epithelium: This type of epithelium is made up of a single layer of cube-shaped cells. It is found in the lining of the kidney tubules and the small intestine.
Simple columnar epithelium: This type of epithelium is made up of a single layer of column-shaped cells. It is found in the lining of the stomach, intestines, and uterus.
Stratified squamous epithelium: This type of epithelium is made up of multiple layers of flat cells. It is found in the skin, the lining of the mouth, and the esophagus.
To learn more about epithelial tissue, here
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In living organisms, complex chemical activities do what to substances?
A.
only build them up
B.
only break them down
C.
nothing
D.
build them up and break them down
Answer:
D. build them up and breaks them down
hope this will help :)
Answer:
D.Build them up and break them down.
During DNA replication, why is it that the entire molecule does not open at one go?
Answer:
DNA replication requires a very high energy. It has to be fast and accurate as well. Therefore instead of opening in one go, long DNA molecules of eukaryotes have a large number of replicons all of which work simultaneously.
Explanation:
While replicating, the entria DNA molecule to keep the whole molecule stabilised does not open in one go because it would be highly expens energetically. ... Actually , unwinding creates tension in the molecule us cucoiled parts start forming super coils due to the interaction of exposed nucleotides
Answer: Because it would be highly expens energetically
Explanation: unwinding creates tension in the molecule us cucoiled parts start forming super coils due to the interaction of exposed nucleotides .
15. How many glycerol molecules are needed to form 1 molecule of an unsaturated
fat?
Answer:
One glycerol molecule is needed
which of the following is a type of cell organelle
Answer:
u did not give options so I will list the different types of cell organelle
Explanation:
Different Cell Organelles and their Functions
Plasma Membrane.
Nucleus/DNA.
Ribosome.
Mitochondria.
Vacuoles.
Cytoskeleton.
Plastids.
Endoplasmic Reticulum.
Which term best describes this step of the investigate process
Answer:
experiment
Explanation:
What conclusion can you draw about the organisms you observed?Write and evidence-based claim
Answer:
Bacteria is very small to see so you need an micro scope to
see it
Explanation:
Someone plz help me :(
Answer:
I think it's A " The train must be able to complete the trip in six hours "
Answer:
I think the answer will be A
Explanation:
The train must be able to complete the trip in six hours
Heloopplpopolll plz
Answer:
Options 2, 3 and 4
Explanation:
Options 2, 3 & 4 are also mentioned at tge end of the cycle; hence it means that a star can become a supernova, black hole or a neutron star at the end of its evolution.
I hope i helped you; if I did kindly do mark me as brainliest <3
Which term defines a well-tested, scientifically supported statement that describes how something happens?
A.
hypothesis
B.
law
C.
observation
D.
theory
Answer:
B
Explanation:
D: Not the choice. A theory is a guess at how something works. It suits the evidence but is not proven.
C: An observation is just that. An observation. If I say the sky is blue, your response is likely so what?
A: a hypothesis is a formal theory. You are in the process of setting up a test of some kind. Not A
The answer is B. That pretty much locks in the result.
Answer:
law
Explanation:
