Answer:
toms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Explanation:
An atom is composed of two regions: the nucleus, which is in the center of the atom and contains protons and neutrons, and the outer region of the atom, which holds its electrons in orbit around the nucleus.
Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams, which scientists define as one atomic mass unit (amu) or one Dalton.
Each electron has a negative charge (-1) equal to the positive charge of a proton (+1).
Neutrons are uncharged particles found within the nucleus.
Which is NOT a property of
electromagnetic waves?
A. Electromagnetic waves can travel through a vacuum.
B. Electromagnetic waves travel in straight lines.
C. Electromagnetic waves are longitudinal waves and travel
using compressions and rarefactions.
Answer:
B. Electromagnetic waves travel in straight lines.
Area under velocity-time graph gives:
Answer:
The area under a speed-time graph represents the distance travelled.
Q1.2. Suppose you decide to design an experiment
to test your friend's hypothesis about classical
music and studying. How will you define your
variables?
O. Both study music and test performance are
potentially confounding variables.
Independent variable: study music. Confounding
variable: test performance.
Independent variable: study music. Dependent
variable: test performance.
Independent variable: test performance.
Dependent variable: study music.
Answer:
The correct answer is :
Independent variable: study music.
Dependent variable: test performance.
Explanation:
Independent variable in a experiment is a variable or a factor that is manipulated or changed in a particular experiment to see its the effect on dependent variable of this change. In this case classical music is variable as it is manipulated to see if it has any effect on studying.
Dependent variable is a variable which is measured in experiment to find the result and affected by the independent variable. In this case testing the performance of subject is dependent variable as it is being measured and affected by classical music.
Thus, the correct answer is: Independent variable: study music.
Dependent variable: test performance.
A solution that is hypotonic to a cell has
Answer:
more solvent molecules than solute molecules
Which question could violate laws aimed at achieving equal employment opportunities?
A. What is your address?
B.what are your job skills?
C.what is your job history?
D. What is your religion?
Answer:
D. What is your religion?
Explanation:
I believe the answer would be D because this is the only question out of the options that could cause bias from the employer. Let's compare this to the other options.
For option A, knowing your address could be crucial information for the employer/company, and shouldn't cause bias or a reason for the employer to not agree.
For option B, knowing your job skills is also crucial information for the employer to know if you are fit for the job.
For option C, knowing your job history is similar to option B...the employer may need to know this information to know if you are fit for the job/if you have experience in this area of work.
Lastly for option D, knowing your religion should not be crucial information for an employer. This would violate laws aimed at achieving equal employment opportunities because this leaves room for the employer to use bias based on his/her religion.
For the following biomolecular interactions, choose the main weak force interactions that mediates them.
Interaction between hydrophobic (nonpolar) amino acid side chains van der Waals interaction
Repulsion between negatively charged backbone of DNA double helix van der Waals interaction
Interaction between water and carbonyl oxygen of guanine hydrogen bond
Answer:
Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.
Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.
Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding
Explanation:
The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.
For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.
The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.
Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.
This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.
explain why that set of graphs is mutualism, commensalisms or parasitism.
Uhhh PLEASE HELP!!!
Answers:
2nd set is mutualism
Explanation:
I think the second graph is mutualism, because since they are living together, they increase in their average # of organisms, which implies that since they live together, they help each-other.
Which condition is autosomal recessive?
O neurofibromatosis type 1
O hemophilia
O cystic fibrosis
O Rett syndrome
Answer:cystic fibrosis
Explanation:
How would life be without television
Answer: Better and worse
Explanation: It would be better because then your not watching all this nonsense that you don't need to know, and because then you wouldn't be up in the house all the time watching TV to where, you stop excersing and spending more time with your family.
I could be worse because there are some edencational stuff on TV like the news, we wouldn't have entertainment.
Hope this helps^^
What happened to the marine life due to oil spill
Answer:
animals died and water was contaminated
Explanation:fish are meant to swim in water not oil
Unipolar neurons carry ____________ information from the PNS to the CNS
Answer: " sensory " .
______________________________________________
Explanation:
Unipolar neurons known as "motor neurons" [or "afferent neurons"] carry sensory information from {tissues and organs in the PNS
["peripheral nervous system"] to the CNS ["central nervous system".].
______________________________________________
What are the two main reasons for variation between organisms of the same species?
. A. Adaptation and Environment
B. Inheritance and Mutation
C. Inheritance and Environment
D. Genetics and Mutation
the two main reasons for variation between organisms of the same species are
Inheritance and mutation
Inheritance is the process by which genetic information is passed on from parents to childa mutation is a change in a genetic sequence. it includes changes in nucleotide base with another nucleotide base.as in same species no of chromosomes are same but variation occurs in genetic sequence so variation occurs in organisms.
1. Which of the following would be least likely to decrease your impact on the environment?
A. Buying used goods to preserve natural resources
B. Eating seafood instead of cattle, because animal agriculture requires more resources
C. Eating less meat, because animal agriculture accounts for 9% of global greenhouse gas emissions
D. MChecking for sustainable seafood labels at the grocery store to prevent overfishinh
Answer:
A. Buying used goods to preserve natural resources
HOPE IT HELPS!
PLS MARK AS BRAINLIEST!!!
How would the absence of juxtamedullary nephrons affect the volume of urine and its osmotic concentration?
Answer:
Increase volume; decrease osmotic concentration
Explanation:
Nephron is the functional unit of a kidney.
The juxtamedullary nephrons is responsible for the development of the osmotic gradients. The osmotic gradient helps in ensuring the urine is well concentrated and helps in adequate water reabsorption.
The absence of juxtamedullary nephrons affect the volume of urine and its osmotic concentration by Increasing the volume and decreasing the osmotic concentration.
how many mL of total fluid was ingested if a patient at 6 ounces of juice, 4 ounce water, 8 oz diet soda, 10 owns coffee, and 6 oz milk
Answer:
3075.65 mL to the nearest 2 decimal places
Explanation:
Add the ounces together:
(I'm assuming one cup of coffee is 8 ounces, 8 x 10 = 80)
6 + 4 + 8 + 80 + 6
= 104 ounces
Convert to mL
104 x 29.5735296
= 3075.6470784 mL
Jonah and Cathy were sure that they had correctly answered most of their exam questions. However, they each scored less than 60 percent on the exam. This BEST illustrates the flaw in thinking known as?
Answer:
The correct answer is : Overconfidence.
Explanation:
A person who thinks his or her sense of direction or judgement is more accurate than it is actually is is known as overconfident, and this phenomenon is known as the overconfidence.
In this case, Jonah and Cathy attempted most of the question of the exam and secured less than 60% on the exam which suggests they have less knowledge than they thought they know, it is a sign of overconfidence.
Thus, the correct answer is overconfidence.
This BEST illustrates the flaw in thinking known as Overconfidence.
The following information should be considered:
A person when he or she thinks that his or her sense of direction or judgement is more correct as compared in actual situation so it is actually is is known as overconfident.So it is the example of the overconfidence.Learn more; https://brainly.com/question/20492533?referrer=searchResults
Wood becomes petrified when its tissues are replaced by minerals. Although petrified wood is no longer part of a living organism, which property of life will still be present in the wood
Answer: Organization
Explanation: A piece of petrified wood was once part of a living organism that has had its tissues replaced by minerals. Which property of life will still be present in the wood?
a) homeostasis
b) response to stimuli
c) growth and reproduction
d) organization
e) metabolism
A petrified wood has had its organic remains or tissues replaced by minerals, a start to the slow process of being replaced with stone. The property of life still present in the wood would be that of organization which simply indicates that the petrified wood are made of cells--the most basic unit of life. As such, it still remains a highly organized, specialized entity with coordinated parts.
carbon, nitrogen and phosphorus are examples of (compounds/nutrients/reservoirs/sediments).
Answer:
nutrients
Explanation:
A natural process in which elements are continuously cycled in various forms between different compartments of the environment (e.g., air, water, soil, organisms).
Carbon, Nitrogen, and Phosphorus are examples of nutrients. Thus, the correct option for this question is B.
What is the importance of nutrients?Nutrients are important for organisms in order to furnish the source of energy that is ultimately required by the animals for the accomplishment of metabolic functions like tissue repair, building, and growth of cells, reproduction, etc.
These nutrients form complex compounds like carbohydrates, fats, vitamins, minerals, proteins, etc. The function of each complex compound is very specific. For example, carbohydrate is known as energy-deriving molecules which deliver immediate energy to the cells of living organisms, proteins are required for cell and tissue repairment, etc.
Therefore, carbon, Nitrogen, and Phosphorus are examples of nutrients. Thus, the correct option for this question is B.
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Identify the independent and dependent variables Mindy and her lab group are given 2 aloe vera plants as test subjects and are asked to create a testable hypothesis of their choice and design a scientific experiment to test that hypothesis. Mindy’s hypothesis is as follows: “If aloe vera plants receive no sunlight then they will die.” Mindy designs an experiment where she will take both plants and put them in a window next to one another and plant them in the same size pot with the same kind of soil and they will receive the same amount of water at the same times over the course of a month. One plant however will be kept in the sunlight while the other will have a box placed over it to prevent it from receiving any light
Answer:
Independent variable: Amount of sunlight
Dependent variable: Plant height
Explanation:
The independent variable is the one that a scientist intenionally changes in an experiment, while the dependent variable is the one that changes in response to the independent variable. In this case, the amount of sunlight given to each plant is intentionally varied so it is the independent variable, while the height of each plant depends on the amount of sunlight given so it is the dependent variable.
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A kitten weighs 3 pounds on earth, how much would the kitten weigh on the moon?
Answer:
3x1/6=1/2 pounds
Explanation:
Since weight is directly dependent on the acceleration of gravity, things on the Moon will weigh only 16.6% (≈ 1/6) of their weight on Earth.
Which gas is responsible for global warming and Which gas is responsible for ozone layer depletion?
Answer:
Green house gases like carbon dioxide, carbon monoxide, carbon tetra chloride, methane, sulphur dioxide, nitrogen dioxide, etc .. are responsible for Global warming and Chlorofluorocarbons and nitrides of oxygen are responsible for Ozone layer depletion.
Explanation:
One of the first things the IPCC concluded is that there are several greenhouse gases responsible for warming, and humans emit them in a variety of ways. Most come from the combustion of fossil fuels in cars, buildings, factories, and power plants. The gas responsible for the most warming is carbon dioxide, or CO2.
Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).
A chemist measuring the viscosity of oils records the instruments and methodology used, so that another scientist will be able to achieve exactly the same results of the experiment. This is an example of ___________.
Answer:
This is an example of replication.
Explanation:
Getting a similar outcome when a trial is rehashed is called replication. Replication is significant in science so researchers can check their work. The consequence of an examination isn't probably going to be very much acknowledged except if the examination is rehashed ordinarily and a similar outcome is constantly acquired.
Hence, This is an example of replication.
Answer: c. replication
Explanation:
Please help me!
Atoms that will form chemical bonds are referred to as ____ , whereas
atoms that will not form chemical bonds, like the noble gases, are referred to as ___
Answer:
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.
A scientist was studying the stars and their influence on the personalities of 100 people over a four year time period. Through his investigation he determined that people that were born during
August were more strong willed and driven than individuals born in October. People born in
October were more relaxed and could better handle stress. Is the scientist's research considered
science?
Answer: D
Explanation:
The answer no is correct it’s correct because the scientist followed personalities which is pseudoscience. So D is the answer.
Describe the Nebular Hypothesis Theory
Explanation:
The solar nebular hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas. The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planetsWhat statement is true of all living organisms?
A-They shrink and divide
B-They develop but don't grow
C-They grow but don't develop
D-They grow and develop
Which type of cells has a chloroplast?
Answer:
plant cell
Explanation:
Animal cells do not photosynthesize (with the exception of one animal but biology is INCREDIBLY diverse and creative.)
during what stage of meiosis do daughter cells first become haploid?
Answer: Only after the first cytokinesis, when the daughter cells of meiosis I are fully separated, are the cells considered haploid. Following this first division, the cell begins meiosis II with prophase II, making this the first haploid meiotic stage.
Explanation:
The stage of meiosis is when the daughter cells first become haploid is meiosis I, after cytokinesis.
What is meiosis?Meiosis is a process of cell division that occurs only in germ cells, during the process of reproduction. It is divided into meiosis I and meiosis II. The process completes in eight stages.
After the process of cytokinesis, the daughter cells become haploid and have their chromosome paired up.
Thus, Meiosis I, the first step of meiosis after cytokinesis, is when the daughter cells initially become haploid.
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Rachael wants to test how sunlight impacts plant growth over time. She will add varying amounts of light to different sets of plants. What is the independent and dependable variable?
Answer:
Independent variable: varying amounts of light
Dependent variable: plant growth
Explanation:
The variable, which are factors that can be altered, in an experiment can either be independent or dependent. An independent variable is one in which the experimenter manipulates or controls in order to bring about an outcome. For this experiment conducted by Rachel, the independent variable is the VARYING AMOUNT OF LIGHTS.
The dependent variable is the variable that responds to changes of the independent variable. In other words, the dependent variable is the outcome of manipulating the independent variable. Hence, the dependent variable is dependent on the independent variable. For Rachel's experiment, the PLANT GROWTH is the dependent variable because it is what responds to changes in amount of light (independent variable).
Diversity of life on earth is included in which central and unifying theme of biology?
Answer:
Evolution
Evolution is considered a unifying theory of biology. It explains the unity and diversity of life.