Question 9 of 25
Which is an example of current electricity?
A. Positively charged particles are attracted to negatively charged
particles.
OB. Negative and positive electric charges build up in different regions
of a cloud.
OC. Electrons flow from an outlet into a toaster, causing it to heat a
slice of bread.
OD. A person rubs a shoe on a rug, causing extra electrons to be
transferred to the shoe.
OC
because Electric current is the flow of electrons through a complete circuit of conductors. It is used to power everything
Answer:
OD is an example of current electricity
whale is a mammal give reasons
Answer:
Because
Explanation:
Whales, along with dolphins and porpoises, are warm-blooded mammals and breathe air like humans do. There are some significant differences between whales and fish: ... Fish use gills to extract air from water. Whales give birth to live young.
what are the secondary sexual characteristics discuss each one of them
Answer:
Differences in size between sexes are also considered secondary sexual characteristics. In humans, visible secondary sex characteristics include pubic hair, enlarged breasts and widened hips of females, and facial hair and Adam's apples on males.
Explanation:
2. Protein A has a binding site for ligand X with a Kd of 10-6M. Protein B has a binding site for ligand X with a Kd of 10-9M. Which protein has a higher affinity for ligand X
Answer:
Protein B has a higher affinity for ligand C than protein A
Explanation:
Binding affinity is a measure of the strength of the bonds or interactions between a single biomolecule or receptor to its ligand. A ligand is usually a small molecule that binds to a specific receptor.
The receptor is usually a large molecule that contains a specific site for the binding of ligand.
Binding affinity is usually measured by the equilibrium dissociation constant (KD). The equilibrium dissociation constant KD is a ratio of the dissociation and the association of ligand to the receptor. The value of KD is used to evaluate and compare the strengths of bimolecular interactions. The larger the KD value, the more weakly the target molecule and ligand are attracted to and bind to one another.
The higher the dissociation constant (KD), the weaker the affinity is between the interacting molecules, whereas, the smaller the KD value, the greater the binding affinity of the ligand for its target.
Protein B has a KD value of 10⁻⁹ M while Protein A has a KD of 10⁻⁶ M.
Ration of KD of protein B to protein A = 10⁻⁹ M/10⁻⁶ M = 10⁻³
Therefore, protein B has a KD value which is 1000 times smaller than the KD of protein A.
Two yeast cells were placed into a special container to which food was continually added, to keep it at a constant concentration. All other factors were set for optimal yeast growth (for example, temperature, oxygen, and pH). The population was sampled every hour for 21 hours and the results of the estimated population size were recorded in the table below.
Answer:
Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.
Explanation:
Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.
Use the map to answer the following question:
Answer:
Hello, what is the questiom=n?
Explanation:
__________ fabric wrinkles less than ____________ fabric.
Linen, synthetic
Jute, Synthetic
Cotton, synthetic
Synthetic, cotton
Answer:
the answer to this question is option C mark me as brainliest
A researcher observes that when two heterozygous plants with red flowers are crossed the resulting offspring include plants with red white, or pink flowers The researcher proposes the rullrypethesis that flower color is the result of independent assortment and incomplete dominance The researchers climesach square value of 7.3 Assuming two degrees of freedom which of the following is the correct Interpretation of the chi-square analysis, using apvalue of 0.05 ? A. The null hypothesis should be rejected because the critical value is less than the calculated value B. The null hypothesis should not be rejected because the critical value is less than the calculated value C. The null hypothesis should not be rejected because the critical value is greater than the calculated value D. The null hypothesis should be rejected because the critical value is greater than the calculated value
Answer:
the correct answer is A
Explanation:
Chi squared is a statistical test that is used either to test whether there is a significant difference, goodness of fit or an association between observed and expected values. the sqaure for this is less than the statistical value originally found, therefor making the null hypothesis void.
The Chi-square test is defined as the statistically significant difference between the expected frequency and observed frequencies.
The correct option is:
Option A. The null hypothesis should be rejected because the critical value is less than the calculated value
The Chi-square test is based on hypothetical facts to determine the significant difference in the calculated and observed frequencies.
The null hypothesis is rejected because the square for the value is less than the statistical or calculated value originally found. Thus, the hypothesis is null and void.
Therefore, the correct option is A.
To know more about the Chi-square test, refer to the following link:
https://brainly.com/question/15312086
What is represented in the diagram? tissue, organ system, organ, cell
Answer:
i need the diagram but im going to go with my gut and say organ or organ system because you cant draw out a cell in the body and tissue just dont make since.
Explanation:
which two body system, when working together, give your body shape and allows you to move around, like the boy seen here
which of the following statesman's is correct.
1.green plants are the only organisms that photosynthesize.
2. photosynthesis turns sunlight into glucose.
3. photosynthesis occurs in the cytoplasm of eukaryotes and prokaryotes.
4.photosynthesis occurs in the chloroplasts of eukaryotes and cytoplasm of some prokaryotes.
The fourth statement is the only correct statement since prokaryotes don't have chloroplasts
Credit cards can help
time regularly.?
when paid off on
build credit history
act as a form of identification
lower your debt
balance your checking account
Answer: build credit history
Explanation:
If one wants to build their credit history, one of the most basic ways is to get a credit card, spend from that credit card and then and make timely payments on the card.
This will build your credit as it will prove that you pay off debts on a timely basis and are therefore less of a credit risk.
Answer:
build credit history
Explanation:
Can someone pleaseeeee helpppp!!!!!!
Answer:
True someone with type o receives o each from a parent
what is the role/function of neurohormones in annelied?
Answer:
Phylum Annelida
There is a complex just beneath the brain that functions as a neurohemal organ. The epithelial cells found in this complex may be secretory as well, but this has not been proved. Neurohormones are released from the infracerebral complex into the coelomic fluid through which they travel to their targets.
it it is located at the base of the brain near the pituitary gland it's very small the hypothalamus plays a crucial role in many important functions include releasing hormones regulating body temperature.
Write a sentence about earthworms, using the words, exposure and hydrated.
Earthworms like staying under dirt because it shields their delicate bodies from exposure. Earthworms have no defensive shell or strong skin so they stay in dampness. The moist, cool earth keeps the worms hydrated.
What cellular function does the respiration rate represent
Answer:
Uh, Cellular Respiration
Explanation:
Um... if this isn't it, I have no idea.
how do the sea birds
contribute to the the pphosphoruos cycle
Answer:
Phosphorous returns to the earth through fish harvest and the collection of fertilizer made by seabirds.
Explanation:
Seabird droppings, also known as guano, can be used as commercial fertilizer, in addition to being vital in terms of the number of nutrients in marine ecosystems.
point)
This is turned to bring the object being viewed closer.
Answer:
Revolving nosepiece
Explanation:
The revolving nosepiece (also called the turret) is the part of the microscope we can turn in order to view an object through different objective lenses. Objective lenses, which provide different levels of magnification (usually 4x, 10x, 40x, and 100x), are all attached to the revolving nosepiece. It allows us to switch lenses from those that provide less magnification to those that provide more. This is how we can see more details on an object we're observing.
You can see what this part of the microscope looks like in the image attached below:
Hollow bones
Survival Advantage
Answer:They can fit into small or tight spaces.
Explanation:
Any four effect of snowslide
Explanation:
An avalanche (also called a snowslide) is an event that occurs when a cohesive slab of snow lying upon a weaker layer of snow fractures and slides down a steep slope. Avalanches are typically triggered in a starting zone from a mechanical failure in the snowpack (slab avalanche) when the forces of the snow exceed its strength but sometimes only with gradual widening (loose snow avalanche). After initiation, avalanches usually accelerate rapidly and grow in mass and volume as they entrain more snow. If the avalanche moves fast enough, some of the snow may mix with the air forming a powder snow avalanche, which is a type of gravity current.
Answer: ATTENTION THERE
IS A
PENIS VIRUS
PENUS
ALL TAMPONS.
How do plate tectonics support evolution
Answer:
Explanation: because they caused redistribution between continents, create volcanos and mountains that help populations adapt
PLEASE HELP!
(click on the picture for it to be clear)
have a blessed day.
Answer:
plastic
Explanation:
Why is it necessary for gametes to be
haploid?
A. to ensure the cell is not too big
B. gametes are not haploid
C. to restore the diploid number of chromosomes
Answer: I think it’s C. to restore the diploid number of chromosomes
Explanation:
i don’t have a explanation but i mean if it’s wrong... sorry lol
how do dirty wells and ponds harm us?
Which of the following is NOT correctly paired with its description?
Answer:
there is nothing there so how are we supposed to know
Explanation:
Answer:
Explanation:
We aren't able to help because you didn't show us any options. Next time put the Options.
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Answer:
Thats cool, did you make yourself?
Explanation:
Name two parts of the cell that are in the plant cells only
Answer:
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole
Explanation:
Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related to Group of answer choices disruption of mitotic spindle formation. inhibition of regulatory protein phosphorylation. suppression of cyclin production. inhibition of DNA synthesis.
Answer:
The correct answer is ''disruption of mitotic spindle formation.''
Explanation:
Vinblastine blocks mitosis by inhibiting the formation of microtubules in the mitotic spindle, which results in the interruption of cell division in the metaphase stage, thus having a specific action of the M phase of the cell division cycle . Its activity may also be related to an interference of the amino acid metabolic pathways that lead from glutamic acid to the citric acid cycle and to urea.
A scientist fused a mouse cell and a human cell, then treated the cell with specific antibodies covalently linked to colored fluorescent dyes (antibodies to mouse proteins were labeled green; antibodies to human proteins were labeled red). Forty minutes later, what will the researcher observe
Answer:
The researcher observes a hybrid cell.
Explanation:
When a researcher perform an experiment in which he fused mouse cell with a human cell, a hybrid cell is formed. This fusion is done in the presence of Sendai virus which helps to combine two different types of cells with each other and produced a hybrid cell. These somatic hybrid cells contain the entire part of the mouse genome and a few number or parts of human chromosomes.
Which of the following represents a scenario of potassium cyanide toxicity?
-The substrate-level phosphorylation of glucose generates all the ATP required by the cell.
-Chemiosmosis still occurs in the inner mitochondrial membrane and generates all the ATP during cellular respiration.
-Oxidative phosphorylation that generates most of the ATP is blocked, and oxygen cannot accept the electrons from NADH.
-Electrons cannot be transferred from NAD to NADH, and ATP generation from both the substrate level and oxidative phosphorylation is blocked.
Answer:
Oxidative phosphorylation that generates most of the ATP is blocked, and oxygen cannot accept the electrons from NADH.
Explanation: Sorry this is late and may be wrong but it is my best guess and here is why:
Potassium cyanide blocks the ETC where the majority of ATP is produced. The ETC is a oxidative phosphorylation process where oxygen is needed as the final electron acceptor of NADH.
The first answer can be eleminated because oxidative phosphorylation produces the most ATP.
The second answer can be eleminated because chemiosmosis does not generate ALL the ATP during cellular respiration, but does produce most of it. Still they worded it as an "all or nothing" type of question so I don't think it is correct.
The fourth answer may not be correct because NAD does not pass on an electron to NADH. Instead, NADH donstes electrons to the ETC and is then turned into NAD. So the process listed is technically backwords.
Sorry I can't be sure about the answer but this is how I broke it down.
Answer: Should be C
Just took the test on edge <3 you all!!