Answer:
C. -independent, dependent, intervening
Explanation:
Independent variable is defined as the variable that can be changed during the experiment, dependent variable is the variable which is being tested and whose value depends on independent variable and intervening variable impacts the relationship between a dependent variable and an independent.
So, in the given study, ice cream was an independent variable as it can be changed during study and Howard wants to study its impact, fighting was a dependent variable as it is being tested and the temperature was the intervening variable as it is a cause of independent variable and also impacts the relationship between a dependent variable and an independent.
Hence, the correct option is C. independent, dependent, intervening.
About 16% of the world's total oil output:
A) comes from offshore drilling
B) is made by the United States
C) is mined deep beyond the continental shelf
D) comes from oil rigs in the Atlantic Ocean
Answer:
The answer is A, It comes from offshore drilling.
Explanation:
Cause i got it right.
What are the technological building blocks required to fulfill the future plans of the industrial biotechnology? Also state the number of key horizontal issues that need to be addressed when these future plans are implemented?
Answer:
The technological components are: research, natural resources and specialized labor.
These components will be used in issues such as the demand for food, the optimization of natural resources and the control of climate change.
Explanation:
One thing we can say about our future: We will be very dependent on the work of industrial technology. This is because it will be able to use microorganisms, natural resources and biological molecules to develop products capable of meeting some of our needs.
However, with the advance of climatic changes, the demand for food increasingly and the destruction of natural resources in a constant way, we can say that biotechnology will face several challenges and to overcome them need to have technological components such as the establishment of research through of a qualified and specialized workforce that promotes the optimization of natural resources and their products.
Which is a function performed by the central nervous system ( CNS) select all that apply
Answer:
The Central Nervous system is made up of the brain,the control units,and the spinal cord ,the network of nerves ,which feed the brain with sensory information for processing.The entire CNS is lined by a constantly circulating fluid called the Cerebrospinal Fluid.(CSF).
Together with the Peripheral Nervous system,the CNS ensure coordination of the body activities.
Generally both the brain and the spinal cord are protected by the skull and vertebral column respectively. Their activities are based on the million of neurons which are networked by synapses.
Functions are:
processing information that is received from the stimuli receptors
sending out information so that the body can react appropriately to stimuli
coordinating reflexes and reactions to stimuli.
These functions are performed through the fast reflex pathways, for efficient coordination of the systems of the body by the CNS with PNS
Explanation:
You have a cup of beans in front of you with 20 white beans and 20 red beans. (You can also use candy, buttons, or coins). These beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r). The cup holds the alleles for an entire population (the gene pool).
Assess the gene pool. How many alleles of each kind are present in your overall population?
1. Dominant: 0, Recessive: 40
2. Dominant: 40, Recessive: 0
3. Dominant: 20, Recessive: 20
4. Dominant: 20, Recessive: 0
5. Dominant: 0, Recessive: 20
Answer:
Number 3
Explanation:
Dominant: 20, Recessive: 20
An allele is the alternative of a gene. On his case, these beans represent the alleles for a simple Mendelian trait, where red is dominant (R) and white is recessive (r).
As states earlier there are 20 red beans (20 dominant alleles) and 20 white beans (20 recessive beans) and each beach represent an allele.
Question 11 (5 points)
Which of the follow best decribes the function of a ligament?
Connect muscles to other muscles
Connect muscles to the nervous system
Connect bones to other bones
Connect muscles to bones
Answer:
Connects Bones to other Bones.
Explanation:
A ligament is a tissue that connects two bones together to form a joint.
Answer:
connect bones to other bones
Explanation:
Ligaments connect bones to other bones. Tendons connect bones to muscles.
Which resource of the ocean floor is not currently being used, but in the future could become an important energy source?
Answer:
Deep sea creatures and mineral wealth can become a potential energy source.
Explanation:
Deep-sea organisms community that lives deep down near the ocean floor have not been fully explored and thus their holds a potential energy source for the future generations. To extract these deep ocean creatures and make use of their special abilities that can be used as an energy source. The use of deep mining projects can extract many unknown hidden resources that are potential for the future. The corals that live on the ocean floor are also a potential resource for man in the future.Since Jerry's accident, he has had no sensations in his injured leg. Based on the functional classifications of neurons, what type of neuron suffered damage
Answer:
Sensory neuron
Explanation:
There are the major classifications to neurons - sensory, motor and inter relay.
All these neurons helps in the relay of signals from the environment to the CNS where these signals are interrupted and actions are Carrie out. The sensory neurons begins this order and help in the relay of sensation from external stimuli.
Thus since Jerry has no sensations in his injured legs, it means he is unable to detect or feel external stimuli/or there is a damage to the sensory neurons in the region of his legs which prevents the relay of information to the CNS.
During the _______ month the lungs can expand and contract to practice breathing techniques (even though oxygen is still supplied through the placenta).
Answer:
During pregnancy it is the eighth month I think. Sorry if it’s wrong.
Explanation:
The famous experiment of Ivan Pavlov where he researched dogs and their responses to stimuli was designed to evaluate this type of learning.
Question 23 options:
Insight
Imprinting
Classical conditioning
Trial-and-error
Answer:
Classical conditioning
Explanation:
Classical conditioning or Pavlovian conditioning is conducted on living organisms to make them associate one or more actions to a given (often familiar) stimulus or stimuli. Ivan Pavlov, in his experiment, trained a dog to associate an action, salivating for food, with the sound of a metronome.
Answer:
Classical conditioning
Explanation:
Ivan Pavlov researched classical conditioning and played a sound for dogs before feeding. The dogs became conditioned to receiving food after the bell. Once the dogs were trained, whenever they heard the bell, they began drooling in expectation of food.
In the trophic level pyramid above, what segment represents the placement of a herbivore?
The answer to your question is a trophic level of carnivores
Only a fraction of the energy available at one trophic level is transferred to the next trophic level.
Since carnivores are above herbivores in the trophic levels, herbivores have more energy than carnivores.
Hope this helps and have a great day!
Explain, using at least three reasons why the following scenario is a problem for farming.
Situation: A news report stated that many species are facing extinction. The major animals that pollinate our crops are
diminishing, which is causing the farmers to use more artificial means to fertilize the plants.
Answer:
1. Less species pollinating affects the rate of reproduction of plants which eventually leads to their extinction
2. If major species become extinct it could negatively affect the food chain. For example if a predator species dies, it could lead to infestation of mice or an insect that destroys crops
3. Switching to more artificial methods means that farming become less profitable as more money is spent on growing plants so less people farm increasing food prices across the globe
Explanation:
What term best describes the difference in colors of the birds below?
a term you can use could be Variety or a Variant
Answer:
genetic variation or variety
Explanation:
Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. The steps of meiosis are shown. Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?
Answer:
Crossing-over
Explanation:
Meiosis is a kind of cell division that occurs only in sexually-reproducing organisms. It is the process by which they produce gametes. Meiosis is that division in which the number of chromosomes in the resulting cells are reduced by half. Due to this reason, meiosis occurs in a two step division process viz: Meiosis I and II.
Meiosis produces genetically different reproductive cells. This is as a result of a phenomenon unique to only meiosis called CROSSING-OVER. Crossing-over is a process whereby non-sister chromatids of homologous chromosomes exchange a segment of their genetic material. It occurs only in Prophase 1 of meiosis where the TETRAD structure is formed. This exchange of genetic material causes a recombination of DNA in the resulting cell (gamete).
Crossing-over only occurs between non-sister chromatids of homologous chromosomes, hence, it can only occur in Prophase 1. Prophase II involves sister chromatids.
Answer:
Crossing-over
Explanation:
Which structure is represented by the X?
Answer:
May be trachea
Explanation:
A chemical manufacturing company wants to control the odor produced by chemicals. Which method can they use for this purpose?
Answer:
gas adsorptionExplanation:
answer for edmentum :)
This requires you to use all the things we have learned in this chapter. 1.55 grams of Carbon disulfide
is added to 2.83 grams of Oxygen to form Carbon dioxide and Sulfur dioxide. If the reaction yields
1.1 grams of the Sulfur dioxide what was the percent yield?
27%
14%
Ο Ο Ο Ο Ο
74%
42%
O 63%
Answer: The percent yield is, 42%
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of carbon disulphide}=\frac{1.55g}{76g/mol}=0.020moles[/tex]
[tex]\text{Moles of oxygen}=\frac{2.83g}{32g/mol}=0.088moles[/tex]
The balanced chemical reaction is:
[tex]CS_2+3O_2(g)\rightarrow CO_2+2SO_2[/tex]
According to stoichiometry :
1 moles of [tex]CS_2[/tex] require = 3 moles of [tex]O_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] will require=[tex]\frac{3}{1}\times 0.020=0.060moles[/tex] of [tex]O_2[/tex]
Thus [tex]CS_2[/tex] is the limiting reagent as it limits the formation of product and [tex]O_2[/tex] is the excess reagent.
As 1 mole of [tex]CS_2[/tex] give = 2 moles of [tex]SO_2[/tex]
Thus 0.020 moles of [tex]CS_2[/tex] give =[tex]\frac{2}{1}\times 0.020=0.040moles[/tex] of [tex]SO_2[/tex]
Theoretical mass of [tex]SO_2=moles\times {\text {Molar mass}}=0.040moles\times 64g/mol=2.56g[/tex]
Actual mass of [tex]SO_2[/tex] = 1.1 g
Now we have to calculate the percent yield
[tex]\%\text{ yield}=\frac{\text{Actual yield }}{\text{Theoretical yield}}\times 100=\frac{1.1g}{2.56g}\times 100=42\%[/tex]
Therefore, the percent yield is, 42%
A strand of DNA contains 10% Guanine, what
percent is Adeninc?
Answer:
40% is Adenine.
Explanation:
In DNA, Guanine pairs with Cytosine and Adenine pairs with Thymine.
If a strand of DNA contains 10% Guanine, that means that it also contains 10% Cytosine.
10% G + 10% C = 20%
100% - 20% = 80% (Adenine and Thymine)
80% ÷ 2 = 40%
The strand of DNA contains 10% Guanine, 10% Cytosine, 40% Adenine, and 40% Thymine.
why don't dog's sweat
Answer:
Dogs do sweat. Sweating is a physiological response to heat where sweat glands secrete salty water. ... The problem is that most dogs are covered with a thick coat of fur, so sweat secreted where there is fur would get trapped in the fur, fail to evaporate, and therefore fail to cool the dog down much.
:
Explanation:
They do sweat. but that is absorbed by the fur of dog.
hope it helps
The cells in this part of a plant form long, vertical tubes. What is the mostlikely relationship between the structure and function of these specialized cells? A. The tubes allow the plant to absorb sunlight for photosynthesis. B. The tubes prevent potential damage to the leaves caused by strong winds. C. The tubes prevent water loss from the leaves. D. The tubes allow water and nutrients to be transported throughout the plant
this is xylem and the answer is D. The tubes allow water and nutrients to be transported throughout the plant
The DNA isolated from a newly discovered virus is found to be 32 percent A, 18 percent C, 18 percent G, and 32 percent T. The base composition of the complementary DNA would be _______ percent A, _______ percent C, _______ percent G, and _______ percent T.
Answer:
The base composition of the complementary DNA would be
32 percent A,
18 percent C,
18 percent G, and
32 percent T
Explanation:
There is a 1:1 ratio between complementary bases, which is why the ratio of each base will remain the same on its other strand as well. Together, these two strands will provide the genome of this new virus.
wild animals like tiger,wolf,lion and leopard don't eat plants.does this mean that they can survive without plants?Can you provide a suitable explaintion
Answer:
Explanation:
No, they cannot survive without plants because carnivore eats the animals which is normally a herbivore and the herbivores eat plant.The animals which lion/wolf/tiger etc eats are mostly herbivores so herbivores would die if plants are not available and lion would not get food .
Lion like all other animals requires Oxygen for survival .The present stock of Oxygen would not lost long in absence of plants.Therefore plants are a must for survival of even the carnivores.
hope it helps
4. Which tissue type has lacuna which radiate out giving it a star like appearance and why would this be?
Answer:
Nucleated bone cells and their processes, contained in the bone lacunæ and their canaliculi respectively. From a section through the vertebra of an adult mouse. In histology, a lacuna is a small space containing an osteocyte in bone or chondrocyte in cartilage.
This element is a gas that is found in both nucleic acids and in amino acids, important building blocks of life. What is it? A. Nitrogen B. Sulfur C. Oxygen D. Carbon My answer is: A) Nitrogen
Answer:
Yes, your answer, nitrogen, is correct (the most appropriate option). However, oxygen is also a correct option.
Explanation:
Nitrogen exists on its own as a diatomic gas. However, it exists as organic nitrogen in nucleic acids such as DNA and RNA (as part of their nitrogenous bases) and in the amino (--[tex]NH_{2}[/tex]) group of amino acids.
Do note that a case can also be made for oxygen as a right option: like nitrogen, it exists as a diatomic gas and can be found in both nucleic acids and in the carboxylic group of amino acids.
Sulfur is not an appropriate option as nitrogenous bases (and nucleic acids) to the best of my knowledge do not contain sulphur although some amino acids like cysteine do.
Carbon is not also an appropriate option because elemental carbon does not exist in gaseous form even though it can be found in both nucleic acids and amino acids.
Identify the statements that accurately describe how hydrogen ion concentration relates to energy production in oxidative phosphorylation. The pH in the intermembrane space is higher than the pH in the mitochondrial matrix. Oxidative phosphorylation relies on the hydrogen ion concentration gradient generated and maintained by the electron transport chain. Hydrogen ions are actively transported out of the mitochondrial matrix. Hydrogen ion concentration is higher in the intermembrane space than in the mitochondrial matrix. Energy is generated as a result of the difference in hydrogen ion concentration between the mitochondrial matrix and the cytoplasm.
Oxidative phosphorylation relies on the hydrogen ion concentration gradient generated and maintained by the electron transport chain.
Hydrogen ions are actively transported out of the mitochondrial matrix.
Hydrogen ion concentration is higher in the intermembrane space than in the mitochondrial matrix.
Which statement describes a parasite? A parasite is beneficial to its host. A parasite is harmed in its relationship with the host. A parasite only benefits when the host is alive. A parasite always kills its host and takes all the nutrients.
Answer:
A parasite only benefits when the host is alive.
Explanation:
Answer:
(C). A parasite only benefits when the host is alive
Explanation:
your welcome slime
In which kind of solution is the concentration of solutes the same inside and outside of the cell? isotonic hypertonic hypotonic concentrated
Answer:
isotonic solution
Explanation:
An isotonic solution has the same concentration of solutes both inside and outside the cell. For example, a cell with the same concentration of salt inside it as in the surrounding water/fluid would be said to be in an isotonic solution.
The solutions can have various concentrations of the solutes dissolved in them. Isotonic solutions have the same concentration of solutes inside and outside the cell. Thus, option a is correct.
What are isotonic solutions?Isotonic is the type of solution that has a similar concentration of the solutes on both sides of the system like sugar and salt in the blood or body fluid. They are the essential part of the body fluid and for the balance of osmosis and diffusion.
The tonicity of the solution plays an important role in the transport mechanism and in the balance of the fluid concentration in the organism. In a hypertonic solution, the concentration is at higher levels and in hypotonic, they have fewer concentrations.
Therefore, the concentration of solutes is the same in and out of the cell in isotonic conditions.
Learn more about isotonic solutions here:
https://brainly.com/question/12126040
#SPJ6
1. You are given a 1 gram soil sample of unknown bacterial load. After doing 10-fold serial dilutions of the soil in sterile water, 100 uL volumes are taken from each dilution for preparation of pour plates. Following incubation, each half of the 10-8 plate has 46 colonies.
a) What was the dilution factor?
b) How many bacteria were present in the soil?
2. Staphylococcus aureus divides every 20 minutes. A culture begins with 10 bacterial cells.
a) After 5 hours, how many generations have occurred
b) After 5 hours, how many bacteria are present?
3. How many milliliters would you need to prepare a 10-2 dilution from a 10ml starting culture?
Answer:
1a. 1:10
1b. 4.6×10¹³
2a. 15generations
2b. 327,680
Explanation:
10 fold serial dilution means 1ml of stock is mixed in 9ml distilled water. This is called as 10⁻¹ solution.
In this way, take 1ml each of every dilution and mix in 9ml distilled water to make 10⁻², 10⁻²-------10⁻⁸ dilutions.
Now, CFU/ml = no. of colonies × dilution factor/ volume of sample plated.
what is the purpose of sub culturing
Answer:
In biology, a subculture is a new cell or microbiological culture made by transferring some or all cells from a previous culture to fresh growth medium. This action is called subculturing or passaging the cells. Subculture is used to prolong the life and/or expand the number of cells or microorganisms in the culture.
Use the drop-down menus to label the parts of a nucleotide
During the process of mountain building, earthquakes sometimes occur along continental-continental converge
boundaries. Which statement best describes the motion of the plates along these boundaries that causes the
earthquakes?
Answer:
The main cause of earthquake is the motion of tectonic plates which occurs due to friction.
Explanation:
The tectonic plates moves slowly inside the earth crust but the edges of these plates stuck with each other due to friction that occurs during their contact. When these two plates detached from each other, the force of friction converts in a form of wave energy which can be observed in the form of earthquake. Divergent, convergent, and transform are the three types of plate boundaries which are responsible for earthquake.
Answer:
D) The plates smash together with no subduction
Explanation:
Got it right