During an investigation, Sam observes the number of hummingbirds that come to his large bird feeder at different times of day. He fills the feeder to the top the first day and counts the number of birds at 6 a.m., noon, and 6 p.m. over ten days. What are the independent and dependent variables in Sam’s investigation?

Answers

Answer 1

Answer:

The independent variable in this question is the time of day the feeders are observed and the dependent variable is the number of humming birds.

Explanation:

The number of humming birds DEPENDS on the time of day the feeders are filled

Hope this helps  :)


Related Questions

due date today 1:00 pam

Answers

Answer:

The amount of light that a plant has determines how much the plant grows, plants need sunlight for photosynthesis, and photosynthesis is how they make food so if a plant has little to no sun it won't grow well.

select all the SI units of measurement.
inch
gram
liter
ounce
foot
meter
(SOMEONE PLEASE HELP ME CHOOSE WHICH ONES, 8th grade science)

Answers

Answer:

i think its Meter and ounce but im not 100% sure

Explanation:

skin is an organ ? I’m confused can someone explain this?????

Answers

Answer:skin is the biggest organ on your body :)

Explanation:

Answer:

Yes

Explanation:

It's an organ

because we have the following

[tex]cell\rightarrow\:tissues\rightarrow\:organs[/tex]

it's an organ because it's a "set" of tissues

the epidermis

the dermis

ect.

is algae plant- like, fungus- like, or animal- like

Answers

Answer:

plant-like

Explanation:

Even though It's a living thing, it contains structures within their cells that resemble plant cell structure. For example, it has chlorophyll.

two effects of climate change on the environment

Answers

Answer:

various factors of climate change can effect the environment  

Explanation:

1. extreme heat - droughts, bushfires

2. flooding effects infrastructure

3. rising in sea levels

Some effects of climate change is global warming which is a big one which is caused when it’s extremely hot and the icebergs Melt causing the water to float up. Heat waves is another one because when the heat temperatures rise heat waves can cause people to have heat strokes and dehydration

The similar shapes of fast swimming marine predators are an example of:__________

Answers

Answer: convergent evolution

Explanation:

The similar shapes of fast swimming marine predators are an example of convergent evolution.

Convergent evolution shows how different species possess identical structures even though they evolve separately. Convergent evolution typically takes place with the organisms that are not really related.

An example of convergent evolution is the similarity that can be noticed in the wings or the flights of bats, birds, insects, etc

Scientists use tissue cultures to study possible medicines that can be used to treat cancer patients. What is one benefit of this procedure?
Patients do not receive harmful or ineffective medication.
The cultured cells are not in their normal environment.
Doctors know how to treat all types of cancer.
One tissue culture can be used for all cancer patients.

Answers

Answer:

b. Patients do not receive harmful or ineffective medication.

Explanation:

on edge

Tissue culture is used to treat cancer patients, as this procedure does not use any harmful or ineffective medication on the patients unlike the other treatment options. Thus, the correct option is A.

What is Tissue Culture?

Tissue culture is the process of growth of tissues or cells in an artificial medium that is separate from the parent organism. This technique is also known as micropropagation method. It is typically facilitated via the use of a liquid, a semi-solid, or a solid growth medium, such as the broth or agar medium.

Tissue culture is used widely in science for the propagation of plants, in the study of medicines such as those related to cancer. Tissue culture can be used as a treatment option in cancer as this technique does not show any harmful or ineffective medication. The cultured tissues of stem cells can be used for replacement of infected cells or body parts.

Therefore, the correct option is A.

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Drag each tile to the correct location. The tiles can be used more than once. Megan observes four cells under a microscope and makes sketches of them as shown. Identify whether the cells are prokaryotic or eukaryotic.

Answers

Answer:

The correct image with related to question is attached please do check.

Explanation:

Genetic material or Nuclear material can be found in the cell either  in "nucleus" a membrane bound organelles or found in the cytoplasm. This is the major difference between prokaryotic and eukaryotic cell.

In prokaryotic cell the genetic material that is DNA, and RNA is not present in the nucleus as there is no body like nucleus for instance figure 2 and 3 whereas in eukaryotic organisms it is present in a nucleus like in figure 1 and 4.

Answer:

1. eukaryotic cell

2. prokaryotic cell

3. prokaryotic cell

4. eukaryotic cell

Explanation:

I got it right on plato.

what percentage decrease in fossil fuel usage is required to achieve this goal?

Answers

Answer:

Further decrease fossil fuel consumption to 80 percent below current levels by 2050

NEED HELP DUE TODAY PLZ HELP ME!!!!

I will give brainly!!!!

NOTE: Cells are NOT to scale.

​Which of the following statements is true regarding Cells A and B?

Choose 1 answer:

(Choice A)
A
Both Cell A and Cell B are eukaryotic because they have ribosomes.

(Choice B)
B
Cell A is eukaryotic because it has DNA.

(Choice C)
C
Cell B is eukaryotic because it has a nucleus.

(Choice D)
D
Neither Cell A and Cell B are eukaryotic because they have flagella.

Answers

The answer is C , only eukaryotic cells have a nucleus.

cell b is eukaryotic because it has a nucleus

What is the process of sea floor spreading?

Answers

Answer:

(See Below)

Explanation:

[1] Magma comes out of the rift valley.

[2] Magma cools to rock and hardens.

[3] Rock is pushed away as new rock is formed at MOR (Mid Ocean Ridges)

[4] Oceanic crust and continental crust meet at the trench.

[5] Oceanic crust bends down under the continental crust.

[6] Gravity pulls rock towards mantle.

[7] Rock melts to mantle.

Explanation:

Sea floor spreading is a process that occurs at mid ocean ridges,where new oceanic crust is formed through volcanic activity and then gradually moves away from the reach.

What is the purpose of a cell?

Answers

Answer:

They provide structure for the body

Explanation:

they take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function.

give two roles of nucleus in the cell​

Answers

Explanation:

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.

is it ok if u could try and help me with my last question if so thx

A collection of cells with similar function forms -

Answers

Answer:

Tissue is a collection of cells with similar function forms.

Explanation:

The diagram below shows hydrogen bonds between water molecules.

What describes each hydrogen bond?

1. An attraction between neutral ends of two molecules.

2. An attraction between the positive end of one molecule and the negative end of another molecule.

3. An attraction between positive ends of two molecules.

4. An attraction between negative ends of two molecules.

Answers

Answer 2..

Hydrogen bond attracts to a negative end because it’s a positive

hydrogen bonds between water molecules. An attraction between the positive end of one molecule and the negative end of another molecule describes each hydrogen bond.

What are the characteristics of water  ?

Water is amphoteric in nature because it serve as both acid and a base, highly viscous in nature due to the presence of a force of attraction  between molecules.

Water is participate in Redox reaction as it help in release of dihydrogen molecules easily, the dielectric constant  is also high, form the connections with other chemical compounds known as hydrates.

The temperature below   4 degrees Celsius the water  ordinarily behaves, when it is cooled further, its unusual properties of water molecule are being observed.

During cooled condition,  the density of water can also slowly increases and further cooled down leads to decrease in the density of water and the expansion of matter  called as the anomalous property of water.

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what is the role of cuticle in upper and lower epidermis

Answers

Answer:

The cuticle is located outside the epidermis and protects against water loss; trichomes discourage predation. The mesophyll is found between the upper and lower epidermis; it aids in gas exchange and photosynthesis via chloroplasts.

Explanation:

thsis answer is not from google



Cellulose is a carbohydrate with an alternating pattern of glucose molecules. How would plants be affected if cellulose did not have this alternating pattern?

Answers

Answer:

The correct answer is - Plants would lack stability and strength.

Explanation:

Answer:

The correct answer is - Plants would lack stability and strength.

Explanation:

I took the test

how can an error in dna get us sick?
Pleaseeee explain!

Answers

Answer:

Errors during Replication. DNA replication is a highly accurate process, but mistakes can occasionally occur as when a DNA polymerase inserts a wrong base. Uncorrected mistakes may sometimes lead to serious consequences, such as cancer. Mutations: In this interactive, you can “edit” a DNA strand and cause a mutation.

Can you help me with the question listed in the pictures below? Please and thank you. Will mark BRAINLIEST!!!

Answers

Answer:

If you truly enjoy something, it won't feel like work.

Explanation:

if your job is something you just have to do and you are not happy it will

feel like work, like chores. No one likes to wash dishes so it feels like work.  

if you truly enjoy doing your “job”, it wouldn’t feel like a job because you’re having so much fun, so you’re not “working”, you’re just having fun :)

HELP!

A researcher observes the enzymatic polymerization of an organic molecule in a cell. Which enzyme is
MOST likely responsible for catalyzing the reaction?
A. a protein
O B. a nucleic acid
O C. a lipid
D. a carbohydrate

Answers

Answer:

A. a protein

Explanation:

Proteins function as enzymes in most of the catalyzing reactions, that increases the rate of reaction within cell.

Proteins are consist of multiple numbers of amino acids and the twisting and folding amino acids provide a unique identity to enzymes. Not all the proteins are enzymes but all the enzymes are proteins.

For example: Trypsin, Pepsin, and Lipases.

Hence, the correct option is "A. a protein".

fire converts energy into what

Answers

Power. ejieuxhwjuqjwje
Fire converts energy into any purpose like heating somewhere and simply burning it. The energy conversation that happens between fire and it’s energy is that fire is thermal energy by itself (used to heat) when it’s lit and had been converted from potential chemical to kinetic because of the heat it’s producing!

5 Devise Imagine that one tree outside your
school looks unhealthy, although all the other
trees seem healthy and strong. Describe how
you could apply scientific thinking to the
situation.

Answers

The first step is to identify the problem. There are factors to consider in keeping a plant or a tree healthy. These include water, oxygen, sunlight, soil, nutrients, climate, and other environmental conditions. If the environment seems to suit the other trees in the garden, ruling out other factors can be useful in determining why only one tree seems to be unhealthy. Once the problem is identified, a scientific investigation must be done to gather data and pieces of evidence which can explain why this event actually occurred. One of the best ways to gather evidence is through observing the tree and checking other signs which might identify if the tree is diseased. Once the gathered data are analyzed and the cause is identified, proceed in thinking of ways on how to solve it. In seeking a solution, it is best to ask information from experts and proper authorities.

How does a marathon runner use oxygen and produce carbon dioxide during the marathon

Answers

Explanation:

Alright, a marathon runner is running, what do you do when you run, you breathe in (usually heavy too) so when the runner is breathing in, they take in oxygen (air), and breathe out carbon dioxide (used air.)

Omar wants to determine if the mass of a model rocket affects how long the rocket is able to stay up in the air. To do this, he constructs three identical rockets and then fills two of the rockets with varying amounts of sand to add mass. He then launches the rockets one at a time and times how long they are able to stay airborne.

What is the test variable (independent variable) in Omar's experiment?

Answers

Answer: To do this, he constructs three identical rockets and then fills two of the rockets with varying amounts of sand to add mass.

Explanation:

What are four types of organic compounds found in all living things?

Answers

Answer:

Most organic compounds making up our cells and body belong to one of four classes:

carbohydrateslipidsproteinsnucleic acids

Hope this helps :)

Answer:

carbohydrates, lipids, proteins, and nucleic acids

Explanation:

Which of these units are most commonly found/used in science?
feet/inches
pounds/ounces
yards/miles
meters/grams

Answers

Answer:

Meters/grams are the most common.

Explanation:

Grams are very exact and meters are also common to use.

meters/grams or m/g

only america uses imperial, the rest of the world uses metric

Sacchromyces is a type of yeast preferred by bakers because it grows very quickly. It makes large
numbers of clones in a very short amount of time. What property of yeast makes it grow in number so
rapidly?

meiotic division by sexual reproduction

binary fission by sexual reproduction

parthenogenetic asexual reproduction

budding through asexual reproduction

Answers

Answer:

d

Explanation:

The property of yeast makes it grow in number so rapidly because budding through asexual reproduction. Thus, option D is correct.

What is asexual reproduction?

The mode of reproduction  which involves only single parent is known as asexual mode of reproduction. The example of the asexual reproduction are several and these are budding, fragmentation, spore formation, and binary fission.

Reproduction will be defined as the process which has been carried out by the living organisms and during this process of reproduction the living organisms has been produced their own young ones as well as feed them. Reproduction has been known as the supreme quality of living things.There are mainly two types of the reproduction and these are sexual as well as asexual reproduction.

The process of the reproduction in which two parents are involved has been said to be sexual mode of the reproduction and the process of reproduction in which only single parent has been involved is known as asexual mode of reproduction. The example of asexual reproduction are budding, fragmentation, spore formation, and binary fission.

Therefore, the property of yeast makes it grow in number so rapidly because budding through asexual reproduction. Thus, option D is correct.

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Which of the following cells is the most different :
Liver cells
Egg cells
Testicular cells
Uterine cells​

Answers

Liver cells is the most different

Which statement describes a newton? It exists only for objects on Earth. It measures the mass of an object. It reflects the amount of force an object exerts. It states that every object attracts another object.

Answers

Answer:

It reflects the amount of force an object exerts

Explanation:

A newton is a unit of force that will accelerate one kilogram of mass one meter per second squared.

Answer:

its C

Explanation:

A student investigates the effects of fertilizer on corn plants by performing the following steps: 1. Plant groups of corn plants in the same type and amount of soil in full sunlight. 2. Add the same amount of different brands of fertilizer to each group. 3. Water the plants for 5 minutes each day. 4. Measure the heights of the plants each day. What is the independent variable in this investigation?

Answers

I think the answer would either be the different brands of fertilizer

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(PLEASE ANSWER!!!! BRAINLEST!)) Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Answer the statement below as true or false. Segment CD is twice as long as segment FG. True or False?? Which statement best describes the impact of the repetition of Harriet Tubman didnt take no stuff in Harriet Tubman? A. It emphasizes that Tubman refused to take material possessions with her on her journeys.B. It emphasizes that Tubman would not let anything stand in the way of bringing people to freedom. C. It demonstrates Tubmans tendency to let other people influence her decision-making process.D. It demonstrates Tubmans dedication to understanding others views in order to reach her goals. The Great Compromise proposed that in one house of Congressthe House of Representativesthe states would be represented according to the size of their _____________. Name 4 noncoplanar points. 15+w=3w-11 then solve for w the term ocean was derived from the ____term okeanos, their name for the atlantic ocean(history of marine science) A perfect square ends with the same two digits. How many possible values of this digit are there? 2(4m-5) - (6m+11) = 33 Which statement is most correct regarding accomplishments in individual sports?A. There is not a high risk of losing in individual sports because nobody else is relying on you.B. Competing well reflects on both the coach and the individual equallyC All attention is on the individualD. The reward is not as great as it is with a team sport Lifestyle choices are usually an important factor in the development of heart disease . In terms of the arts (literature, drama, philosophy), what are accomplishments of the Greeks that continue to have an effect on us today? A monorail starts from rest and accelerates at a rate of 2.2m/s2 for 10s.Then it runs at a constant speed for 74s and then slows down at a rate of 1.5m/s2 3) Please give two reasons why slaves needed in the "New World" I need help please, will give 5 stars In what way is the Protestant reformation directly connected to the renaissance The _____ perspective is grounded in the work of Carl Rogers and Abraham Maslow.a) humanistic-existential.b) behaviorist.c) functionalist.d) structuralist. Please help me with this!! If you can answer all of them. its due today. Make three commands of your own (have at least one verb that has an irregular yo form) that are formal. . Select one resource and hypothesize what side effects mightoccur if thatresource is depleted. Does 0.63 terminate?