A scientist is designing an investigation to find out what is the amount of light that a plant receives is related to how much food the plant has to help it grow. For her experiment, the scientist plans to get one plant only one hour of light per day another plant five hours of light per day and a third plant 10 hours of light per day. Then she will use a roller to measure how much each plant grows each day. The set up for her experiment is shown below. Which of the following will help make sure that the investigation is a fear test?
a. Use the three different types of lightbulbs.
b. Give the plants with less light more fertilizer.
c. Give each plant the same amount of fertilizer.
d. Use three different types of plants.
Answer:
c
Explanation:
two find the effect of a variable ,which is light in this experiment, all the other conditions should be fixed
Plss help meee pls :’0
Choose a plant structure and animal structure that serve a similar function in each
organism. Describe the structures and how they each organism survive.
Answer:
Structurally plant and animal cells are very similar because they are both eukaryotix cells they both contain membrane bound organisms such as nucleus method
if water were a nonpolar molecule, how would it properties be diffrent
There wouldn't be any life on earth; it would be a gas like ammonia or methane.
What do nonpolar molecules in water?Fats and oils are nonpolar molecules that do not interact with water or form hydration shells. These molecules are not electrostatically attracted to water molecules because they lack areas of partial positive or partial negative charge. Because there is no charge separation in a nonpolar molecule, no positive or negative poles are created. In other words, nonpolar molecules have an equitable distribution of electrical charges throughout the molecule.
How may a molecule become nonpolar?There are no positive or negative poles created in a nonpolar molecule. All charges are dispersed uniformly throughout the molecule. As is the case with the tetrahedral molecule carbon tetrachloride, nonpolar molecules are typically symmetrical.
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Which statement describes carbon's unique bonding ability?
Carbon can easily form 2 covalent bonds with other atoms.
Carbon can easily form 4 covalent bonds with other atoms.
Carbon can only bond with other carbon atoms.
Carbon can bond with all other atoms.
The statement that describes carbon's unique bonding ability is that carbon can easily form 4 covalent bonds with other atoms (option B).
What is a covalent bond?Covalent bond is a type of chemical bond where two atoms are connected to each other by the sharing of two or more electrons.
Carbon is a chemical element (symbol C) with an atomic number of 6. It is a unique element with unique characteristics.
This uniqueness of carbon is attributed to its ability to form four covalent bonds with other atoms because of its four valence electrons.
Therefore, the statement that describes carbon's unique bonding ability is that carbon can easily form 4 covalent bonds with other atoms.
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How was hellenistic Greece influenced by Classical Greece?
Classical Greece helped with the art and construction styles.
Which of the following is the best description of what the atomic mass of an element is roughly equivalent to?
A. The number of protons
B. The number of electrons
C. The number of neutrons
D. The number of protons plus the number of electrons
E: The number of protons plus the number of neutrons
Answer:
I believe its E
Explanation:
Atomic mass = atomic number + amount of neutrons
Atomic number = amount of protons
Therefore Atomic mass is the amount of protons plus the amount of neutrons so your answer would be E.
Which of these is a characteristic of a virus?
It invades a host organism and reproduces inside the host.
It can grow on any surface provided there are nutrients.
It can independently make its own proteins and survive.
Characteristic of a virus is It invades a host organism and reproduces inside the host.
A virus is an infectious submicroscopic creature that only reproduces inside of live cells. All living things, including plants, animals, and microbes like bacteria and archaea, are susceptible to virus infection. Since Dmitri Ivanovsky's 1892 publication revealing a non-bacterial pathogen infecting tobacco plants and Martinus Beijerinck's 1898 discovery of the tobacco mosaic virus, more than 9,000 virus species—out of the millions of different types of viruses in the environment—have been documented in detail. Viruses are the most common sort of living organism and can be found in practically all ecosystems on Earth. Virology is the study of viruses; it is a branch of microbiology.
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When the copper (II) sulfate and sodium hydroxide indicator turns from blue to purple, that means:
When the copper (II) sulfate and sodium hydroxide indicator turns from blue to purple, that means that protein is present.
What are food tests?We know that foods are those chemical substances that we take into the body for the nourishment of the body. Foods are broken down by certain chemicals in the body called enzymes in order to produce energy.
Since foods are chemical substances, they can be identified by interaction with other chemical substances. One of the indicators used in a food test is copper (II) sulfate and sodium hydroxide.
When the copper (II) sulfate and sodium hydroxide indicator turns from blue to purple, that means that protein is present.
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WHAT IS YOUR EXPECTATION IN "TLE EXPLORATORY"?
write 2-3 paragraphs
NEED IT ASAPP!!
will make brainliest who answer this.
Answer:
Technology and Livelihood Education (TLE) is one of the learning areas of the Secondary Education Curriculum used in Philippine secondary schools. As a subject in high school, its component areas are: Home Economics, Agri-Fishery Arts, Industrial Arts, and Information and Communication Technology.
7) You want to test which size of soccer ball is easiest to juggle with your feet. You test a size 3, size 4 and a size 5 ball. You have someone time how long the ball stays in the air for each of the trials. You test each size ball a total of ten times, and average the time for each.
What is the dependent variable?
What is the independent variable?
What is the controlled variable(s)?
How do I make my legs bigger?
Answer:
Exercise and photoshop
Explanation:
Answer:
Below are 10 of the best leg exercises to build bigger legs for any level of lifter:
1. Back Squats
2. Front Squats
3. Hack Squats
4. Leg Press
5. Stiff Leg Deadlifts
6. Goodmornings
7. Machine Hamstring Curls
8. Machine Leg Extensions
9, Bulgarian Split Squats
10. Walking Lunges
Explanation:
Don’t get it wrong or I will be mad if you get the answer right you get brainlist or the gold hat or whatever it’s called
Francine believes that if she adds fish guts to her tree seedlings that they will grow taller. Francine plants 5 pine trees WITH fish guts and 5 more pine trees WITHOUT fish guts. For the first year of their growth, she measures their height every week.
What is the dependent variable?
A.the fish guts
B.the height of the tree
C.one whole year
What is the independent variable?
A.the fish guts
B.the height of the tree
C.one whole year
Answer:
The dependent variable is B. The independent variable is A.
Explanation:
The dependent variable relies ON the independent variable. The independent variable is what's changing for the purpose of the experiment.
does anabolic or catabolic release energy?
Answer:
so yes
Explanation:
Catabolic reactions break down complex chemicals into simpler ones and are associated with energy release. Anabolic processes build complex molecules out of simpler ones and require energy.
If a solution has a pH of 5, how many ions of H+ are in the solution?
*
1 point
1 x 10^-3
1 x 10^-4
1 x 10^-5
1 x 10^-6
Considering the definition of pH, the concentration [H⁺] is 1×10⁻⁵ M.
Definition of pHpH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
The numerical scale that measures the pH of substances includes the numbers from 0 to 14. The pH value 7 corresponds to neutral substances. Acidic substances are those with a pH lower than 7, while basic substances have a pH higher than 7.
Amount of ions of H⁺ in the solutionIn this case, you know the solution has a pH of 5. You can replace this value in the definition of pH:
5= -log [H⁺]
Solving:
[H⁺]= 10⁻⁵ M
[H⁺]= 1×10⁻⁵ M
Finally, the concentration [H⁺] is 1×10⁻⁵ M.
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Problem 1
A botanist studying flowering plants observed that when two true breeding
(homozygous) plants, one with white flowers and one with pink flowers, were
crossed, the resulting F₁ progeny were all pink.
a) What is the dominant phenotype?
The dominant phenotype is Pink
A monohybrid cross is made up of two homozygous individuals that have the opposing phenotype for a particular genetic characteristic. "A monohybrid cross is a cross between two monohybrid characteristics (TT and tt)." The monohybrid cross is in charge of passing one gene on.
What is a Dominant phenotype ?When two dominant alleles are inherited (homozygous dominant) or when one dominant and one recessive allele are inherited, a trait is said to have a dominant phenotype (heterozygous dominant).The relationship between two genetic variants is referred to as dominant. Each gene has two alleles that an individual inherits from each parent. One allele of a gene, known as the dominant gene, will be expressed if the alleles are different.Learn more about Dominant phenotype here:
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which of the following structures in a human cell contains the cells genetic information
Answer:
The NUCLEUS contains chromosomes, the thread-like structures made of deoxyribonucleic acid, which are the structures that contain the body's genetic information.
A microbiologist ran some tests on pure enzymes extracted from a pathogenic bacterial strain. She found that Compound Z was a potent inhibitor of an enzyme essential for DNA replication. In subsequent tests, however, when the scientist incubated bacterial cultures in media containing high concentrations of Compound Z, she observed no effect on the bacteria. Pose a scientific question the scientist might use to pursue additional research on this topic.
A scientific question the scientist might use to pursue additional research on this topic. is; "What role does the cell membrane play in resistance of the bacterial strain to compound Z"?
What is a research question?A research question is a question which a research work aims to provide an answer to.
The research question is formulated from observation which the researcher had made about a particular topic or subject.
In the experiment conducted by the microbiologist, she observe that Compound Z was a potent inhibitor of an enzyme extracted from a pathogenic bacterial strain which is essential for DNA replication.
However, when the scientist incubated bacterial cultures in media containing high concentrations of Compound Z, she observed no effect on the bacteria.
Therefore, a scientific question would be: What role does the cell membrane play in resistance of the bacterial strain to compound Z?
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Which statement best represents how structure relates to function?
When a sandhill crane finds a mate, it bonds for life.
Longer legs and different hip bones let modern humans walk upright
Parrots typically lay clutches of 2-4 eggs per year.
Hummingbird feathers come in a wide variety of iridescent colors.?
Great white sharks have sharp serrated teeth for tearing into their prey. It can last for years until one of the cranes dies. A Hummingbird's feathers are iridescent and reflect light due to the structural make-up of the feather.
Hummingbird feathers are in general black, brown, white, and reddish brown. The mirrored image of mild off their unique feathers gives an iridescence and brilliance to the hummingbird's shade. Hummingbirds have almost one thousand feathers on their frame. The definition of iridescent is something that has rainbow-like colors. An instance of iridescent is the inner of an abalone shell. outstanding, lustrous, or colorful.
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The amount of a product offered for sale at a given price is
The quantity offered is the total amount of a good or service made available for purchase at a specific pricing point.
Higher prices typically result in greater supply, and vice versa, in a free market. The quantity offered is the total amount of a good or service made available for purchase at a specific pricing point. Quantity supplied in economics refers to how many products or services suppliers are willing to manufacture and offer for sale at a specific market price. Given that price variations have an impact on how much supply producers actually place on the market, the quantity supplied differs from the supply's total amount (i.e., the total supply). The term "price elasticity of supply" refers to how supply responds to price fluctuations.
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In the picture, identity the following
stages in the cell cycle.
A.
B.
C.
D.
E.
Which phase is not represented in this picture? Why?
The cell cycle involves the interphase, cell division, and cytokinesis. processes. A- Telophase, B- Anaphase, C- Metahase, D- Prophase, E- Interphase. The phase we can not see is cytokinesis.
What is the cell cycle?
The cell cycle is composed of three main stages: the interphase, cell division, and cytocinesis.
During the interphase, the cell prepares to divide. It duplicates its size and content, including genetic material. This phase is divided into three stages: G1, S, and G2 stages.
After the interphase the cell goes through division,
somatic cells and germ cells → mitosis germ cells → meiosisMitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced.
Mitosis occurs in only one phase.
In the prophase, it occurs chromosome condensation and nuclear membrane breaks. During the metaphase, fibers of the spindle apparatus capture chromosomes and take them toward the center of the cell, to the equatorial plane, where they line up.Each chromatid joins with a microtubule of opposites poles.
Sister chromatids are held together until they reach the Anaphase, during which other enzymes are activated to break the bonds and separate the chromatids, which migrate to the opposite poles. In telophase, the duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole.Finally, occurs cytokinesis.
In the exposed image we can see a piece of tissue and different cells in different division stages.
A- Telophase ⇒ we can see the uncondensed chromosomes already in the poles.
B- Anaphase ⇒ we can see chromatids migrating to the opposite poles.
C- Metaphase ⇒ We can see the chromosomes aligned in the equatorial plane
D- Prophase ⇒ We can see chromosomes in the nucleous before the nuclear membrane breacks. The nucleolus is not visible anymore.
E- Interphase ⇒ The nucleus is still well-defined and the nucleolus is visible.
Cytokinesis is the stage we can not see. This might probably be because,
neither of the cells has reached this stage yet or has already occurred. the used stain does not show the cytoplasm.
Cytokinesis should be seen as a thin, light membrane separating cytoplasm and the new nuclei.
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Example of the nucleus acid include
Answer:
Explanation:
Two examples of nucleic acids include deoxyribonucleic acid (better known as DNA) and ribonucleic acid (better known as RNA). These molecules are composed of long strands of nucleotides held together by covalent bonds
Which list is an organ system?(1 point)
a. the heart, arteries, and veins
b. the heart, the stomach, and intestines
c. the liver, the bladder, and the heart
d. the liver, blood, and skin
I selected D. do you think its correct?
Answer:
B
Explanation:
the heart, the stomach and intestines
Help me I’m falling this class please
Answer: b
Explanation:
potential energy is when its still when the arrow is released it changed to kinetic
Six images of organisms are below.
Drag and drop each organism to place them in the correct order of succession, from first to last, in an area consisting mostly of rock.
A
First: D
F
B
C
Last: E
The order of succession of the organisms on an area consisting mostly of bare rocks will be D, A, B, F, C, and E.
What is succession?Succession in ecology means the gradual replacement of communities of plants and animals in an ecosystem with another community. this process continues until a stable community is formed. This is known as the climax community.
A succession that happens in totally bare areas is known as primary succession. Such areas are first colonized by pioneer species. These species are low nutrient requirements species such as lichen.
Thereafter, as the area keeps changing and more nutrients become available, the lichen community is replaced by annual weeds. Annual weeds are later replaced by perennial grasses.
This process continues until the grasses are replaced by shrubs, the shrubs are replaced by softwood trees, and finally by hardwood trees.
The order of replacement is, therefore, D, A, B, F, C, and E.
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A solid takes up space bea cause it has what ?
Answer: A solid takes up space because is has definite shape and volume.
Explanation:
How is the Earth different from all of the other planets?
How is the Earth different from all of the other planets?
It has a rocky surface.
It is warmed by the sun.
It has a breathable atmosphere.
It rotates on its axis.
Which area of the ocean, as described above, best fits the definition of a commons?
The area of the ocean, as described above, that best fits the definition of a commons is The high seas
This is because the part of the oceans that lie beyond coastal states' 200-mile exclusive economic zones—is a commons and this is an area that is known as the high seas.
With this in mind, an ocean which is a body of salt water that is found in huge basins on Earth's surface and the commons that can be found there is the high seas.
What is a Commons?This refers to the cultural and natural resources that people in a community have access to and these can include natural materials that are used by all such as air, water, etc.
Hence, we can see that The area of the ocean, as described above, that best fits the definition of a commons is The high seas
This is because the part of the oceans that lie beyond coastal states' 200-mile exclusive economic zones—is a commons and this is an area that is known as the high seas.
With this in mind, an ocean which is a body of salt water that is found in huge basins on Earth's surface and the commons that can be found there is the high seas.
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What features do all arthropods have in common
Answer:
they all have a exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.
Explanation:
Answer:
An exoskeleton is what all arthropods have in common. This is a feature where the organism has a skeleton outside its skin rather than inside like humans do.
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How do you think data and evidence help scientists answer their questions
Information is collected as evidence. It contains facts and data.
Then again, what really is scientific proof?
Empirical evidence is what is employed by scientists.
This is proof that has been obtained directly through observations and measurements. The two basic categories of empirical evidence are qualitative and quantitative.
Observations are used to obtain qualitative evidence, which is then reported through written descriptions of the characteristics of the observations.
The gathering of quantitative evidence involves measurement and computation. It entails figuring out quantities or quantities and sizes. Numbers or amounts are used to describe this type of information.
The scientific method's seven steps
Pose a query. conduct research Incorporate your hypothesisBy performing an experiment, you may verify your hypothesisMake a discoveryMake a judgment based on your analysis of the dataGive the results.Learn more about scientific data here:
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under what conditions might a predominantly sandy soil be advantageous for plant growth
The majority of flowering plants benefit from the sandy soil's ability to drain effectively because it is lighter weight, doesn't compact, and generally makes for easier digging and composting than clay soils.
A loose, airy texture that doesn't compact and encourages proper drainage are just a few advantages.Carrots and other root crops grow neatly straight, and the roots of all plants spread out more readily.Sandy soil has a longer growing season because it freezes later in the winter and warms up more quickly in the spring.Due to the comparatively large particle size in sandy soils, they are less fruitful than other soil types and more likely to dry up.Sandy soils are sometimes thought of as having simple-to-define physical characteristics, such as a lack of structure or a weak structure, poor water retention abilities, high permeability, and high sensitivity to compaction with numerous negative effects.
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