5. Which describes the variable that is changed to test the prediction?
experimental
control
dependent
independent

Answers

Answer 1

Answer:

Independent

Explanation:

An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).

This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.

In an experiment , the variable being manipulated by an experimenter is known as an independent variable while the dependent variable is the event expected to change when the independent variable is manipulated.

Hence, independent variable describes the variable that is changed to test the prediction.


Related Questions

Refer to Table 3.1 and complete the following table by dragging the name of each functional group to its correct location.

Answers

Hydroxyl is R-OH some amino acids and some sugars
Amino is NH2 found in all amino acids
Phosphate is PO4 found in some phospholipids and nucleotides
Carbonyl is R-COH fatty acids and amino acids
Sulfyhydryl is SH some amino acids

The correct answer is as follows:

1. Carboxyl      R-COOH      present at fatty acid and some amino acid

2. Hydroxyl     R-OH             Present in sugar and some amino acids

3. Carbonyl     R- C=OH      Present in sugars

4. Amino         R-NH2           Present in all amino acids

5. Sulfhydryl   R-SH              Present in some amino acids

6. Phosphate [tex]PO^{3-}_{4}[/tex]             Present in phospholipids and nucleotides

All given are the functional group that are bound with the compound with covalent bond and provide special characteristics for specific type of chemical reactions.

Carboxyl group is a group that bond with organic compound and has addition -COOH to the compound that give them specific chemical properties.Hydroxyl are the -OH group that usually present naturally in some amino acids and sugars.Carbonyl group present naturally in many sugars and bound -C=OH to compound and gives it specific chemical properties.Amino group are present all the amino acids and helps in forming proteins and peptides.Sulfhydryl is a functional group that has hydrogen and sulfur bound with the organic compound as -SH and found in some amino acids.Phosphate group is found in all the nucleotides and make backbone of nucleic acids, also found in phospholipids.

Thus, the correct table is provided above.

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How do limited abiotic resources impact the overall biotic organisms in an ecosystem?

Answers

Answer: Abiotic variables found in terrestrial ecosystems can include things like rain, wind, temperature, altitude, soil, pollution, nutrients, pH, types of soil, and sunlight. ... Limiting factors keep populations within an ecosystem at a certain level. They may also limit the types of organisms that inhabit that ecosystem.

Explanation:

what is gene??,,,????​

Answers

In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA.
Genes are segments of DNA found on a chromosome that determine the inheritance of a particular trait. They are responsible for the inherited characteristics that distinguish one individual from another. Chromosomes. Chromosomes are structures found in the nucleus of a cell that contains the genetic information (DNA).

How is cellular respiration and photosynthesis linked to specific organelles within the eukaryotic cells?

Answers

Answer:

Respiration. The energy collected in the chloroplasts is used during cellular respiration. ... The carbon dioxide and water produced are transferred back to the chloroplast where they are again used for photosynthesis. Cellular respiration takes place in another organelle called the mitochondria.

Explanation:

The mitochondria and cytoplasm is responsible for cellular respiration and the chloroplast is responsible for pjotosynthesis. Scientists theorize that mitochondria were once bateria themselves since they have their own Dna. They incorporated themselves into our cells to help us make energy. The chloroplast uses sunlight to break the hydrogen off the water and use the hydrogen to transfer electrons.

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There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. Microbiologists need to perform a dilution series, where multiple dilutions are performed in sequence to arrive at the correct dilution. Dilutions are cumulative. Multiply the series of dilutions together to find the final dilution value. If 6 serial dilutions are performed, each with a dilution of 0.1, what is the cumulative dilution

Answers

Answer:

cumulative dilution = 0.000001

Explanation:

A serial dilution is a stepwise kind of dilution repeated a certain number of times, in which the concentration reduces exponentially each time.

The cumulative dilution is the final dilution gotten depending on the number of times dilution has been done and the dilution factor. The formula is given as:

Cumulative dilution = (F)ⁿ

where:

F = dilution factor = 0.1

n = number of serial dilutions = 6

∴ cumulative dilution = (0.1)⁶ = 0.000001

in prokaryotes ribisomes are found in?

Answers

Answer:

the cell

Explanation:

Answer:

The cell

Hope I helped

Which of the following describes an adaptation?

something that improves an organism's ability to survive

something that does not help an organism survive

a part of the animal's life cycle

a place where an organism

Answers

Answer:

something that improves an organisms ability to survive

Answer:

Explanation:

Shelly and Jason are siblings, but Shelley looks like their father while Jason looks like their mother. Which of the following statements best explains the difference in Shelly’s and Jason’s features?
A. Shelly and Jason inherited different combinations of 23 chromosomes from their mother and 23 chromosomes from their father.
B. Shelly inherited a greater number of chromosomes from their father than Jason did.
C. Shelly inherited a smaller number of X chromosomes from their mother than Jason did.
D. Shelly and Jason had different mutations occur in the 46 chromosomes their inherited from their mother and father.

Answers

I think the answer is A.) :)

Answer: The answer is D.

Claim: Warmer weather caused Galetown to have more severe storms.
can you explain why this happens please?

Answers

Answer:

Warmer weather caused Galetown to have more severe rainstorms. When the temperature of an air parcel starts out higher, it will have to rise higher in the troposphere before the temperature of the air parcel and the surrounding air are equal. When the temperatures become equal the air parcel will stop rising.

Explanation:

Answer: When the temperature of an air parcel starts out higher, it will have to rise higher in the troposphere before the temperature of the air parcel and the surrounding air are equal. When the temperatures become equal the air parcel will stop rising.

Explanation: Add me as a friend!!! <3

Why do many plants have specialized cells that produce strong odors?
A. To attract prey
B. To scare off predators
C. To attract insects
D. To collect more sunlight
SUBMIT

Answers

Answer:

c

Explanation:

some plants use this as a way so they could pure insect to trap them and digest them

Plants have specialized cells that produce strong odors to attract insects.

Example:- The inflorescence of the titan arum plant attracts specific pollinators by emitting an intense, carrion‑like odor.

Why plants attract insects?Flowering plants attract pollinating insects with scent from their flowers and bright colors. If they have become infested with herbivores like caterpillars, they attract beneficial insects like parasitic wasps with the help of scent signals from their leaves.Flowers attract insect for pollination too.

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what is the meaning of sewage system

Sewage System​

Answers

1. sewage system - facility consisting of a system of sewers for carrying off liquid and solid sewage. sewage works, sewer system. facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility"
Sewerage system, network of pipes, pumps, and force mains for the collection of wastewater, or sewage, from a community. Modern sewerage systems fall under two categories: domestic and industrial sewers and storm sewers. Sometimes a combined system provides only one network of pipes, mains, and outfall sewers for all types of sewage and runoff. The preferred system, however, provides one network of sewers for domestic and industrial waste, which is generally treated before discharge, and a separate network for storm runoff, which may be diverted to temporary detention basins or piped directly to a point of disposal in a stream or river.

What types of cells carry out photosynthesis?

Plant

Animal

Yeast

All of the above

Answers

On the cellular level, the reactions for photosynthesis occur in organelles called chloroplasts (in eukaryotic cells). Blue-green algae (which are prokaryotic) carry-out the photosythesis reactions in the cytoplasm.

So all of the above

b. What is the probability that event 1 AND event 2 will occur? = probability of event 1 X probability of
event 2.
i. From a cross of Yy and Yy peas, what is the chance of getting YY?

Answers

Answer:

please rate if this was helpful

Explanation:

This picture shows different amounts of space in between the particles of two
different soil samples.

Which word best describes what we are seeing?

Answers

Answer:

Porosity

Explanation:

I had another question like this and it was B so there u go

Meaning of soil porosity: Pore-spaces, also known as voids, are the area of the soil's volume that is not occupied by solids, either mineral or organic, hence option B is correct.

What is soil porosity?

Under field conditions, air and water are always present in the pore space. The amount of water that a specific volume of soil can hold depends on the amount of pore space.

How many pores, or holes, a soil has is referred to as its porosity. A proportion of the total volume of the soil material is used to measure a soil's porosity.

Soil particles are defined as those that are 2 mm in diameter or smaller and make up the inorganic component of soil. Sand, silt, and clay are the three types of soil particles.

Therefore, Porosity is a crucial indicator in locations where groundwater reserves supply drinking water.

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Why do humans
show variation?

Answers

Answer:

gugkugcoytci6r

Explanation:

Causes of Variation:

Causes of differences between individuals include independent assortment, the exchange of genes (crossing over and recombination) during reproduction (through meiosis) and various mutational events. There are at least three reasons why genetic variation exists between populations.

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Answers

a they teach you in school

You have a solution in lab and increase the hydroxyl ion concentration. what is the impact on the pH of the solution.

A. The pH stays the same.
B. The pH rises.
C. The pH decreases.​

Answers

Answer:

it will option C. hope it helps


Which pair of nitrogenous bases will form a bond in a DNA molecule? *

A. cytosine and adenine

B. adenine and thymine

C.guanine and thymine
thymine and cytosine
мо

Answers

Answer:

B. Adenine and Thymine. :)

All of the following are characteristics of cancer cells except

a. No apoptosis
B. Ability to metastatize
C. Angiogenesis
D. Unregulated mitosis
E. Unmutated DNA

Answers

Answer:

i think it is c

Explanation:

The option that is not characteristics of cancer cells is E (Unmutated DNA).

Cancer is caused mutations or abnormal activation of cellular genes that control cell growth and cell mitosis.

The characteristics of cells that are cancerous include:

No apoptosis: Apoptosis is programmed death of a normal cell. This doesn't occur in cancer calls as the cells continue to divide giving rise to malignant cells.

Ability to metastatize: This is the ability of cancer cells to migrate to other normal cells and tissues of the body. This so because they are less adhesive to one another.

Angiogenesis: This is the ability of cancer cells to form new blood vessels that supplies blood to it for its nourishment.

Unregulated mitosis: This is the ability of cancer cells to grow without the usual cellular growth limits.

Mutation is the abnormal changes that occur in the deoxyribonucleic acid of a cell.

Cancer cell develop due to mutation of antioncogenes, which are genes present in cells which suppress the activation of oncogenes that lead to cancer.

Therefore, the option that is not a characteristics of cancer cells is E (Unmutated DNA).

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leaves of cactus are modified into thorns​

Answers

Answer:

To reduce loss of water through transpiration leaves of cactus plants are modified into spines.

Explanation:

Answer:

leaves are reduced to spines in a cactus , so that the water does not get evaporated with the heat of the SUN. 1. They are present in hot deserts which are scarce in water so in order to reduce the loss of water by Transpiration from the surface of the leaves, its leaves are reduced to spines

Animals are___ and are____,meaning we spend a lot of time hunting down food because we can't make it ourselves.

Answers

Animals are multicellular, we are heterotrophic

Answer: Multicellular; heterotrophic

Explanation: Hope this helps  :)

4. Kingdom Protista - Click the characteristics of organisms in this kingdom. Click all that apply. all live in moist environments amoebe and paramecium feed on other organisms these organisms are large and land-dwelling some make their own food (photosynthesis) but most take in or absorb their food eugiena make food through photosynthesis most members are one-celled (unicellular) Match the GARAMECULIM with its characteristics. Click all that apply.​

Answers

Answer: the A or C ok plz  5 stars

Explanation:

?Which form of energy is NOT correctly associated with the related example
kinetic energy: fat molecules O
potential energy: water held behind a dam o
kinetic energy: movement of muscles
chemical energy: glucose o

Answers

Answer:

kinetic energy: fat molecules

Explanation:

Fats store energy so it would be potential.

Kinetic energy: fat molecules

Kinetic energy is the energy that an object or particle uses during its motion. Potential energy is the stored form of energy already present in the object or particle. Chemical energy is the energy stored in the bonds of chemical substances. Water held behind the dam will have potential energy the water currents store energy within them which can be used to move the turbine in the water dam to produce electrical energy. Movement of muscles during walking, running, or performing any other activity which can be seen in the form of displacement from one region to another is due to kinetic energy. Glucose is a chemical molecule whose bonds when broken releases energy in the form of ATP or adenosine triphosphate which is a chemical energy. Fat molecules store energy in the adipocytes in the form of potential energy not kinetic energy. Hence, option kinetic energy: fat molecule is incorrect.

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How could an abundance of algae have a positive impact on an ecosystem?
1Algae grow very quickly. An abundance of algae would cover the surface of the water and provide shade for aquatic organisms.
2Algae provide carbon dioxide for many aquatic organisms. An abundance of algae would result in more available carbon dioxide.
3Algae is the food source for many aquatic organisms. An abundance of algae would mean more available food.
4Algae is a primary consumer. More algae would result in a more balanced ecosystem.

Answers

Answer:Algae is the food source for many aquatic organisms. An abundance of algae would mean more available food.

Explanation:

just cause

In 1929, Edwin Hubble observed the velocity at which galaxies were moving away from the Milky Way. The graph below shows the relationship between this velocity and the distance those galaxies were from the Milky Way.
What conclusion can be drawn from Hubble’s data?
Objects that are closer are moving slower, suggesting that the Universe is shrinking.


Objects that are closer are moving faster, suggesting that the Universe is expanding.


Objects that are farther away are moving faster, suggesting that the Universe is shrinking.


Objects that are farther away are moving faster, suggesting that the Universe is expanding.

Answers

Answer:

Answer is a

Explanation:

A. lozxzxzl stxzop chxzxzeating oxzn testzs lmaxxo

Answer:D

Objects that are father away are moving faster,suggesting that the Universe is expanding .

Explanation:I took an test on this it’s right

Which of the following is true of conifers?

Answers

Answer:

Explanation:

option b is true.

most coniferous trees have both male and female cones.

Answer:

The gametophytes grow directly from the sporophyte

Explanation:

I got it right on the test:)

6. What is the name of the repeating units that make up DNA?"
O Nitrogen Base
O Nucleotide
O Phosphate Group
O Sugar-phosphate backbone

Answers

Nucleotides would be the answer!!
The answer is Nucleotides

During pregnancy under what condition is Rh factor incompatibility a problem

Answers

Answer:

what type of qustion is this

Explanation:

explain the advantage of the synaptic cleft being so small

Answers

Answer:

The size of the synaptic cleft is small which results in the neurotransmitters to pile up over time thus making the neurotransmitters' concentration increase and therefore can proceed with their function of sending nerve impulses. Hope that helped!

Explanation:

Sequence of dna that is not involved in coding for a protein

Answers

Answer:

Transfer RNA, Ribosomal RNA, and Regulatory RNAs

Explanation:

Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules.

Answer: Ribosomal RNA, Transfer RNA, and Regulatory RNAs.

Explanation: The introns do not code for any protein and are removed from the mRNA before it is made into protein.

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