Answer:
c
Explanation:
its evolution
Gerald performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. The data from his experiment are shown in the table below. Amount of light (hours) Number of plants Average volume of oxygen produced (mL) 1 4 0.50 6 4 2.0 10 4 5.0 Which format should he use to present his data? bar graph chart line graph pie graph
Answer: Bar Graph
Explanation: I had this question on my quiz, and wanted to just share the answer with you. It is without a doubt one hundred percent correct.
Bar graph should he use to present his data. So, the correct option is A.
What is Bar graph?A bar chart or bar graph is defined as a chart or graph that presents categorical data with rectangular bars in which the height or length is proportional to the values they represent where the bars are arranged vertically or horizontally. Vertical bar charts are also called column charts.
These make it easy to compare sets of data between different groups at a glance by representing ranges on one axis and discrete values on the other. The goal is to show the relationship between two axes where bar charts can also show large changes in data over time.
In this question, Gerald uses bar graph to represent its data.
Thus, the correct option is A.
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During the process of melting from a solid to a liquid, what happens to the temperature of the substance?
A. It stays constant.
B.it increases
C.it decreases
D. It increases and then decreases.
Answer: It is A
Explanation: Melting occurs when a solid is heated and turns to liquid. The particles in a solid gain enough energy to overcome the bonding forces holding them firmly in place. This is called freezing and occurs at the same temperature as melting. Hence, the melting point and freezing point of a substance are the same temperature.
Answer:
B. it increase
Explanation:
it increase cause if you put more temperature, the molecules would move more quickly leading to solid become a liquid.
i hope its help
Which macromolecule is made up of a glycerol backbone and 3 fat
acid tails? What does the structure look like?
Answer:
Fat molecule
Explanation:
A fat molecule comprises of a backbone which is made up of glycerol and a tail which is made up of three fatty acids. Glycerol can be described as a tiny molecule which is made of just three hydroxyl groups (OH) whereas fatty acids are long compounds comprising long chains of hydrocarbons. These hydrocarbons are attached to the carboxyl group. Normally, fatty acids contain 12 to 18 hydrocarbons but can carry as low as 4 and as high as 36 hydrocarbons.
Which scientist discovered cells by observing cork with a homemade microscope? Carolus Linnaeus Rudolf Virchow Robert Hook Theodor Schwann
Answer:
C. Robert Hook
Explanation:
Robert Hooke was the scientist who first studied the cork cells under a homemade microscope. It was observed that the cells are very tiny units that are nor visible to our naked eyes.
The cell wall was clearly seen under the microscope and it appeared as small rooms and thus Robert Hooke named it as cell. The cork cell that was studied was taken from the cork cambium of a tree. The cells were dead.
Answer:
Robert Hooke
Explanation:
discovered cells by observing Cork with a homemade microscope
The grouping of objects or events based on similar characteristics is called
observation
interpretation
measurement
classification
Submit An
The sorting of objects or events based on similar characteristics is called as Classification.
Answer: Option D
Explanation:
As the population of living species is very high, they are classified under different categories based upon the similarities exhibited by then through process called as classification or taxonomy. Such type of processing is required in order to rule of the difficulties arising during the research. The organisms are classified under seven titles namely:
(1) Kingdom
(2) Phylum or Division
(3) Class
(4) Order
(5) Family
(6) Genus
(7) Species
Why are proteins considered organic molecules?
A. They contain many nitrogen atoms.
B. They contain many carbon atoms.
C. They are not used by living things.
D. They are very small.
The answer is option B "They contain many carbon atoms." Proteins are considered organic molecules because they are made up of carbon atoms. Proteins give your body energy and allows your body to run the way it does. Proteins also aren't considered organic molecules because they are small, because they are not used by living things, or because they contain nitrogen.
Hope this helps.
5. The energy for the water cycle comes from
A the sun
B the ocean
C Earth's core
D the atmosphere
Answer:
A. the sun
Explanation:
Answer:
A. the sun
Explanation:
Water cycle -
Water cycle represents that , the evaporation process of the water from the surface of the Earth , and as it rises in to the atmosphere and then condense down and comes back to the surface of Earth , in the form of rain , snow fall .
The very first step , i.e. , the evaporation of the water , is done with the help of the energy of sun .
Because , sun provide the energy to convert the water to water vapor .
An organism is made of many cells, cannot move on its own, and absorbs food from its
environment. What kingdom does it belong to?
Fungi
Protista
Plantae
Animalia
Answer:
So a immobile multicellular eukaryote would probably be Plantae could you be slightly more specific because it could technically also be considered a fungi.
In 1999 confusion between the use of the English and metric systems resulted in the loss of the Mars Climate Orbiter, which was intended to study that planet’s water history. How could costly mistakes like this be avoided in the future?
Final answer:
To avoid future costly mistakes like the loss of the Mars Climate Orbiter due to confusion between English and metric systems, enforce universal adoption of the metric system, implement thorough checks and balances, and enhance team communication on units.
Explanation:
In 1999, confusion between the use of the English and metric systems resulted in the loss of the Mars Climate Orbiter, a spacecraft designed to study Mars' water history. To avoid costly mistakes like this in the future, several measures can be implemented. First, enforcing a universal adoption of the metric system in all space missions to prevent unit conversion errors. Second, incorporating thorough checks and balances in the engineering process to ensure that all data, including units of measurement, are correctly applied and converted when necessary. Lastly, enhancing communication and collaboration among diverse engineering teams to make sure everyone uses a consistent unit system. The failure of the Mars Climate Orbiter serves as a valuable lesson on the importance of attention to detail in engineering calculations, especially in units and dimensions.
Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic.
Answer:
Each parent organism contributes one copy of its alleles in a seemingly random fashion to its offspring, as meiosis to create gametes (egg or sperm cells) reduces the number of genes by half. Therefore, each gamete contributes only one allele.
Explanation:
During meiosis process each parent contribute haploid gamete with an alleles for a specific gene in a random fashion to its offspring, Therefore, each gamete contributes only one allele.
What is allele ?Alleles are the forms of a gene which carry a trait, it is present in a pair in a specific location on a particular chromosome and control the same trait.
Alleles of an organism makes the genotype.
If a pair of alleles are similar for a trait, then the genotype is homozygous.
If the pair of alleles are different for a trait, then the genotype of the organism called as heterozygous.
Similarly in a heterozygous genotype, the allele which express its character called dominant allele and the other one which wont express called recessive allele.
For example, the human blood group ABO.
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The question was incomplete. The probable question was
1. Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic. 2. Reginald Punnett sought to apply the insights obtained by Mendel to explain the laws of inheritance in a structured fashion. What's a Punnett square and how is it used? 3. You're conducting a science experiment crossing two different purebred mouse strains, which each contain a different variation of the same gene, for two generations. What do you expect to see as the phenotypes of the first generation? The second generation? 4. How closely do Mendel's insights into dominant and recessive traits match up with the ratios that Punnett calculated in his Punnett squares?
In a bog or swamp, which tropical level usually has the highest biomass A.tertiaryB.producerC.primary consumerD.scavenger this is for k12
Answer:I do K12 too are you in sixth grade if so what’s your name we might be in the same class connects
Explanation:
The tropical level that usually has the highest biomass is the producers. That is option B.
In an ecosystem such as the swamps, energy and nutrients are transferred step by step among organisms along a feeding pathway.
The steps along a feeding pathway is known as the tropical level.
A biomass on the other hand takes into account both the size and the number of individual organisms found in each tropical level in a feeding pathway.
Producer are the photosynthetic organisms that manufacture their own food by converting light energy from sun into chemical energy. They occupy tropic level 1.Primary consumers feed on the producers. They occupy tropic level 2Tertiary consumers feed on primary consumer. They occupy tropic level 3.And the higher the tropical level the lower the biomass while the lower the tropical level, the higher the biomass.
Therefore, the tropical level that usually has the highest biomass is the producers.
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A boy is walking down the road with a doctor. While
the boy is the doctor's son, the doctor is not the
boy's father. Then who is the doctor?
Some argue that wind power should be used more than it is now. What
argument could someone make against the use of wind power?
O
A. It produces toxic chemicals when used.
O
B. It contributes to global warming.
C. It can only be produced in windy areas.
O
D. It generates greenhouse gases.
SUB
+ PREVIOUS
Answer:
c. it can only be produced in windy areas.
Explanation:
Which best describes the fossil record
The fossil record gives evidence of extinct species. The fossil record shows that organisms always remain the same. Which best describes how the fossil record is
Answer:
The definition of a fossil record is a section of fossils which has been analyzed and organized chronologically and in taxonomic association.
The items that best describes the fossil record are:
1. comparative anatomy
2. radiometric dating
3. DNA analysis
Which molecule can pass freely through the lipid layer
Answer:
protiens and enzymes
This question has a mistake. Here is the correct question:
Which molecule can pass freely through the lipid bilayer ?
Answer:
The correct answer is Lipid-soluble molecules.
Explanation:
In order for a cell to survive, it must receive nutrients and oxygen from the outside that will be transported to them by means of a single cell.
For this to happen, each molecule must pass through a lipid bilayer which is responsible for forming membranes.
Not all molecules can achieve this, but only those that can dissolve in lipids and some small ones will get through this bilayer, leaving out large molecules and ions.
An apple is cut into slices. Half of the slices are sprayed with lemon juice. All slices are stored in a sealed plastic bag. After 4 days, they are observed to see how brown they turned.
What’s the independent and dependent variable?
Answer: Lemon juice- Independent variable
Intensity of brown color color of apple -Dependent variable
Explanation:
Independent variable can be defined as the factors which the experimenter can control and the the dependent variable depends on the independent variable.
Here, the experiment is to test the effect of lemon juice on the color intensity of apple( basically the brown color).
The color change is based on whether lemon juice is sprayed on the half part or not and it is kept for 4 days. The color change is then observed.
Based on this the hypothesis is accepted or rejected.
The experiment's independent variable is lemon juice presence on apple slices, testing its impact on browning (dependent variable) after 4 days, observing if acidity reduces enzymatic browning.
In this experiment, the independent variable is the presence of lemon juice on the apple slices. It is manipulated by spraying half of the slices with lemon juice and leaving the other half untreated. The dependent variable is the degree of browning observed on the apple slices after 4 days of storage in a sealed plastic bag. The degree of browning is a result of the interaction between the apple's natural enzymes and the oxygen in the air.
By introducing the lemon juice, which contains antioxidants like ascorbic acid, the experiment aims to test whether the acidic environment created by the juice can slow down the browning process by inhibiting the enzymatic reaction. The independent variable (lemon juice) is hypothesized to affect the dependent variable (degree of browning).
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Describe what energy is
Answer:
Energy is the ability to do work.
Explanation:
There are many forms of energy, but the overall description is the ability to do work.
Energy is basically the ability to do work. Energy is in basically everything. We use energy for everything we do, for scoring a goal to baking brownies or to send astronauts into space. Energy comes in different forms but they can be put into two categories which are potential energy and kinetic energy.
Which of these describes two broad groups of interactions environmental scientists study?
A How matter undergoes changes and how we interact with the animals we study
B How we obtain food and how the Moon affects the earth
C How humans come together to organize governments and how laws are maintained
D How we use natural resources and how our actions alter the environment
Answer: I believe the answer is a. sorry if I am wrong.
D. How we use natural resources and how our actions alter the environment.
Explanation:The Environmental studies is the branch of science which deals and studies about the interaction of human being and the other biotic components present in the earth which is collectively called as nature.
The environmental Scientist study about how the available natural resource is utilized by the human race and the advantages and disadvantages caused to the environment due to it.
For example, the usage of available fossil fuels such as coal and petroleum is studied and their usage consequences are updated by them.
Paragraph
2. In an atomic model, what particles are found inside the nucleus of an atom?
Answer:
The protons and the neutrons are found in the nucleus of an atom.
Explanation:
Atoms are best described as the smallest unit of any matter.
Protons can be described as part of an atom which carries a positive charge. The protons are enclosed in the nucleus of the atom.
The neutron is the part of the atom that carries zero charge. The neutron is also enclosed in the nucleus of the atom.
The electrons can be described as the part of an atom that carries a negative charge. The electrons move around the nucleus in orbits.
Which amino acid chain will be formed by the codons shown below?
GGU AGC CGG
Answer:Answer: C- it is Gly, Ser, and Arg
Explanation:
Answer:
C. Gly-Ser-Arg
Explanation:
Gene expression is an important process in living cells as it involves the synthesis of useful products (proteins) needed for optimal functioning of the cell. Gene expression occurs in two major stages viz: transcription and translation. Transcription involves the synthesis of a mRNA molecule using a DNA template.
Translation, on the other hand, occurs in the ribosome (organnelle for protein synthesis). The mRNA molecule produced during transcription is read in a group of three nucleotides called CODON. Each codon specifies a particular amino acid i.e. as one codon is read, one amino acid is added to the polypeptide chain (future protein).
Based on this, a mRNA molecule with a sequence: GGU AGC CGG is composed of three codons, which codes for three amino acids. Using the genetic code provided as an attachment to this question,
Codon GGU codes for Glycine (Gly) amino acid
Codon AGC codes for Serine (Ser) amino acid
Codon CGG codes for Arginine (Arg) amino acid.
Hence, GGU AGC CGG mRNA sequence will synthesize an amino acid sequence: Gly-Ser-Arg.
What will happen when the membrane and transporting substance meet?
Answer:
Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.
Explanation:
What molecule or gas is not necessary for plants and is then released?
Maltose is a disaccharide that can easily be digested into glucose molecules. The glycosidic
linkage between glucose molecules in maltose is
Answer:
The glycosidic linkage between glucose molecules in maltose is α-1,4-glycosidic linkage.
Explanation:
As maltose is a reducing sugar, it must possess the linking of its two glucose molecules in such a way that an anomeric carbon is left for the the formation of an aldehyde group. The glucose molecules in maltose are linked in such a way that the first carbon atom of one of the glucose molecules is attached to the fourth carbon of the other glucose molecule. This is known as head to tail fashion and termed as α-1,4-glycosidic linkage.
Would a La Niña event have a negative impact on wildlife? Explain your answer
Answer:
Yes.
Explanation:
In the tropical Pacific, like the western coast of central and south America, the surface of the sea is cooler than normal and that results in reduced rainfall, drought and increased fires. This definitely brings about a negative effect on wildlife, as there is less water and food available.
However, in South East Asia, a higher than normal rainfall is commonly experienced, which is good for agriculture.
Final answer:
A La Niña event, characterized by cooler Pacific Ocean water, affects global weather and ecosystem dynamics. Marine wildlife may benefit from increased nutrient availability, while terrestrial wildlife could be stressed by altered weather patterns. The overall impact on wildlife is complex, with some species benefiting and others facing challenges due to ecosystem fluctuations.
Explanation:
A La Niña event, which is a period when the Pacific Ocean is cooler than usual, has significant impacts on global weather patterns and consequently on wildlife. During La Niña, stronger trade winds blow across the Pacific, leading to a buildup of cooler water in the western Pacific compared to normal years. These cooler ocean temperatures can affect global weather patterns, potentially leading to more intense storms in some regions, droughts in others, and fluctuations in marine ecosystems.
For instance, marine wildlife is impacted by changes in ocean temperatures and currents. A cooler ocean can lead to an increase in upwelling, which brings nutrient-rich waters to the surface and can boost plankton populations. This effect can lead to a more abundant food supply for fish and other marine organisms, potentially increasing their populations. However, terrestrial wildlife may experience stress due to altered weather patterns, such as increased rainfall or drought conditions, which can affect their habitats and food availability.
Moreover, La Niña can influence the migration patterns of birds and marine animals, as they respond to changes in food availability and habitat conditions. Additionally, the populations of prey species can fluctuate, affecting predators and the overall ecosystem balance. It's important to note that while some species may benefit from the conditions brought about by La Niña, others may face greater challenges. Overall, wildlife impact during La Niña events is complex and varies across different ecosystems and species.
What is the role of Carbon Dioxide in photosynthesis
for plants, Instead of breathing oxygen, they suck in carbon dioxide and release oxygen in the atmosphere.
Analyze the diagram below. Which term best describes what is formed in the diagram?
Answer:
The correct answer is - ionic bond.
Explanation:
Ionic bonds are the bonds that are formed when an atom transfer its electron to the other atom and forming ions that become electrically charged that attracts each other and form bond between them.
Given the picture showing the ionic bond formation as sodium transfers one electron to the chlorine ion and becomes electrically charged and therefore electrically attracted to one another to form an ionic bond.
Thus, the correct answer is - ionic bond.
Section D: Population Density:
1. Calculate the population density of the following countries.
Country
Population Land Area Density (km)
(km²)
Canada
32,805.000
9,976,140
China
1,306,313,800
9,596,960
Japan
127,417,200
377,835
India
1,080,264,400
3,287,590
Monaco
32, 410
Spain
40,341,500
504,782
United Kingdom
60,441,500
244,820
United States
295,734,100
9,629,091
Population density is found by dividing population by land area. This calculation gives the average number of persons per unit area. The population densities for each listed country were calculated.
Explanation:Population Density Calculation
Population density is calculated by dividing the population of an area by its land area. The land area should be in same unit for all calculations to keep the comparison valid. Here are the population densities:
Canada: 32,805,000 / 9,976,140 = 0.0033 individuals per km² China: 1,306,313,800 / 9,596,960 = 136.15 individuals per km² Japan: 127,417,200 / 377,835 = 337.39 individuals per km² India: 1,080,264,400 / 3,287,590 = 328.59 individuals per km² Monaco: 32,410 (assuming a land area of 2.02 km²) = 16,039.6 individuals per km² Spain: 40,341,500 / 504,782 = 79.92 individuals per km² United Kingdom: 60,441,500 / 244,820 = 247.18 individuals per km² United States: 295,734,100 / 9,629,091 = 30.71 individuals per km² Learn more about Population Density here:
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Look at the food web . What does the deer get energy from
Answer:
The grass
btw there's no pic of the food web
As the mass of a star increases how do you think it’s luminosity might change?
Answer:
As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off. Temperature also affects a star's luminosity.
Explanation:
A star is a gas ball that is luminous that can be hydrogen and helium, and stay in position by its own gravity. As the mass of star increases, the luminosity of it also increases.
What is the luminosity of star?Luminosity is the total amount of energy emitted by a star or other celestial object per second.
The power output of a star along with the wavelengths is called its bolometric luminosity.
The increased surface area of star promotes more light and energy formation. It can also be affected by temperature.
Thus, as the mass of star increases, the luminosity of it also increases.
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for these reasons blood is an example of which type of mixture
Answer:
heterogeneous
Explanation:
it's a heterogeneous mixture called a colloid.