Answer:
no shape of molecules doesn't affect the chemical bond
Answer:
There is a sharp distinction between ionic and covalent bonds when the geometric arrangements of atoms in compounds are considered. In essence, ionic bonding is nondirectional, whereas covalent bonding is directional. That is, in ionic compounds there is no intrinsically preferred direction in which a neighbour should lie for the strength of bonding to be maximized. In contrast, in a covalently bonded compound, the atoms adopt specific locations relative to one another, as in the tetrahedral arrangement of hydrogen atoms around the central carbon atom in methane, CH4, or the angular arrangement of atoms in H2O.
Explanation:
Many people equate high self-esteem with
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is a process that involves one division of the nucleus and results in two identical cells.
A Meiosis
B Mitosis
C Fertilization
D Replication
Answer:
b. mitosis
Explanation:
it is cell division and keeps things the same
Answer:
B
Explanation:
Mitosis is contrast or what of Meiosis. Mitosis is a cell division process in which a parent cell produces two identical daughter cells.
If you apply a 50 pound bag of a 15-5-12 fertilizer, how much potassium is
in the fertilizer?
A. 5%
B. 15 pounds
C. 12%
D. 12 pounds
NEED HELP ASAP PLEASE
Answer:
c 12
Explanation:
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Earth is currently in a state of climate change because average global temperatures are slowly but steadily increasing. If this trend continues, what changes would you expect to see in the cicada life cycle? Use information from the article to support your argument
Answer: Cicadas will emerge from underground earlier in the year. Based on current patterns, they emerge earlier in the south than in the north because it’s warmer in the south, so the soil warms sooner. If global temperatures increase around the world, cicadas will emerge from the ground in all areas earlier than expected.
I hope this helps :)
can someone give me these answers please?
Answer: ok
Explanation:
Which of the following statements about the action potentials in contractile myocardial cells (cardiac muscle) is INCORRECT? Compared to skeletal muscle cells, contractile myocardial cells have a lower (more negative) resting membrane potential. Action potentials are propagated between adjacent cardiomyocytes through gap junctions. The duration of an action potential in a contractile myocardial cell is greater than the duration of an action potential in a typical neuron. During the repolarization phase of a contractile myocardial action potential, the cell is highly permeable to sodium, potassium and calcium.
Answer: During the repolarization phase of a contractile myocardial action potential, the cell is highly permeable to sodium, potassium and calcium.
Explanation:
Apart from the fact that contractile cells conduct impulses, it also helps in contractions which are needed for pumping of blood. It should also be noted that the myocardial conducting cells serves as the heart's conduction system. They also have a lower resting membrane potential.
Of the options given, the answer is the last option i.e. during the repolarization phase of a contractile myocardial action potential, the cell is highly permeable to sodium, potassium and calcium. This is wrong.
Repolarization occurs due to a rise in the permeability of potassium and during repolarization, the calcium channels close.
Why don't solids, liquids, and gases leave Earth's atmosphere?
Only gases can leave the atmosphere.
O Matter on Earth is destroyed and recycled.
O Gravity keeps all matter on Earth.
Look at the energy pyramid shown below.
Tertiary Consumers
(ex: hawk)
Secondary Consumers
(ex: snake)
Primary Consumers
(ex: grasshopper)
Producers
(ex: grass)
If a pesticide is released into the environment that kills most of the grasshoppers, which of the following is most likely to occur?
OA.
an increase in population for all organisms
ОВ.
a decrease in the number of snakes
C
an increase in the number of hawks
D
a decrease in the amount of grass
Answer:
It should be A. If the pesticide is released, then they die, and the consumers of the grasshopper (snake) dies due to no grasshoppers, then the animal that consumes the other animal (hawk eats snake) that eats the grasshopper will die because there aren't enough of that animal for it to eat. the only thing that lives is the grass.
Sorry if I'm wrong, but i hope it helps.
Answer:
It's actually B, "a decrease in the number of snakes"
Explanation:
THIS IS EARTH SCIENCES
If -----------are spaced closely together on a map, there is a drastic temperature change over a distance.
A. Isobars
B. Warm fronts
C. Isotherms
s D. Occluded fronts
Answer:
B:warm fronts
Explanation:
It is warm fronts because the closer it is the warmer it is and the farther it is colder.
When a patient is said to have "third-degree burns," this indicates that the patient has burns that cover approximately one-third or more of the body.
True
False
Answer:
I believe this is true. True
PLEASE HELP- Soon
If an impatiens flower experiences drought, then its leaves curl up and wilt as a response to water loss and as a means to reduce evaporation (water loss from the leaves).
What is the independent variable ?
What is the dependent variable ?
7. Why are adult sponges said to be sessile animals? |
Answer:
All adult sponges are sessile, meaning they are attached to some surface. Since they cannot move, sponges cannot pursue their food. Instead, they are filter feeders, meaning they obtain their food by straining the water for small bits of food like bacteria, algae, or protozoans.
Explanation:
According to the passage, what is one way that people prepare for a tornado?
Answer: There is no passage to read but some ways people can prepare for a tornado are by going to a basement or inside room with no windows and covering their body with something sturdy like a desk if not available you can also use blankets
Explanation:
Write a one sentence summary about viruses .
Answer:
A virus is a non-living structure that reproduces by infecting live cells (In any living organism be it a plant or animal) and killing them to spread more viruses around to other live cells, repeating the cycle of a virus.
In the planetary model, electrons
A)do not exist
B)are shown in a cloud
C)have positive charges
D)orbit the nucleus like the planets orbit the sun
Answer:
Orbit the nucleus
Explanation:
Wikipedia
Which of the following professionals would be hired to examine a manufacturing site and review certifications and
permits?
O environmental lawyer
O environmental policy maker
O environmental resource managers
environmental compliance specialist
environmental compliance specialist
Runners only have enough stored ATP in their muscle cells to run for about five seconds. Which answer correctly explains how the runner's body adjusts to the longer distance, for example, a marathon (42.1 km)?
Answer Options:
A: The runner's body will convert stored fat molecules into energy.
B: The runner's body will create the needed energy by breaking down proteins.
C: The runner's body will supply the needed energy by producing starch.
D: The runner's body will produce the energy by activating the Golgi apparatus.
Answer:
A: The runner's body will convert stored fat molecules into energy.
Explanation:
When the body needs energy to power cells, it uses ATP. ATP is generated by cellular respiration, which involves the breakdown of (usually) sugars by aerobic respiration.
If you exercise for a longer period such as during long distance running, your body will use more fat and less glucose in an attempt to conserve the limited glucose stores in case exercise intensity increases and oxygen availability is is reduced.
The runner's body will convert stored fat molecules into energy.
Over millions of years silt washed into a lake formed layers of sedimentary rock. What type of rock was likely formedscien
what would happen to a freshwater fish in the ocean ?
The fish would fill with water and die, through osmosis.
Explain the contribution of antigenic determinant in false negative and false positive tests
Answer:
Contribution of antigenic determinant in false negative -: Popular causes of false-positive ELISA include: flu vaccine administration, presence of HLA-DR antibodies in women with multigravity, presence of rheumatoid factor. Contribution of antigenic determinant in false positive tests -: Positive RPR exam, hypergammaglobulinemia and autoimmune hepatitis (e.g. multiple myeloma).Explanation:
Much attention has been paid to the specificity and sensitivity of this assay since regular ELISA screening of blood donors for anti-HIV antibodies was implemented. It was found that inadequate coating of the microtitre plates with HIV-antigen could lead to false negative results. It is important that the ELISA test kit manufacturers use control systems that guarantee adequate antigen coating.
Describe the molecules in a solid. How is that different than molecules in gas?
Answer:
The molecules in a solid are more closely packed than those in a gas. Gas molecules are VERY spread apart, which is why we cannot see them.
Explanation:
Which correctly shows the order of organization when dealing with populations and ecosystems?
A. Organism-Species-Population-Community-Ecosystem-Biome
B. Organism-Species-Community-Population-Ecosystem-Biome
C. Species-Organism-Population-Community-Biome-Ecosystem
D. Organism-Population-Species-Community-Ecosystem-Biome
Answer:
hope this helps
Explanation:
Amnesia is a physical disorder that affects the brain. Which statement best explains why amnesia may also be
considered a psychological disorder?
O it can affect personality
O it reduces brain function
O it can be caused by trauma
o it interferes with motor skills
Answer:
It can be caused by trauma
Explanation:
Dissociative amnesia has been linked to overwhelming stress, which may be caused by traumatic events such as war, abuse, accidents, or disasters. The person may have suffered the trauma or just witnessed it.
Answer:
The correct answer is A, it can affect personality
Explanation:
Just took the test and this was the right answer. Hope this helps!
What happens to enzymes during digestion/when it comes into contact with our stomach acids? Not our enzymes, but the enzymes in the food.
In neuroscience, depolarization is an "all or nothing" response; what does that
mean?
The neuron's intracellular charge must get more negative to meet a certain
threshhold in order to depolarize. If the neuron does not hit that threshold, then the
neuron will not fire
The neuron will either accept all signals, or none of the signals received. If the
neuron is ready to receive signals, then it automatically depolarizes and sends the
signals to the next neuron.
The neuron's intracellular charge must get more positive to meet a certain
threshhold in order to depolarize. If the neuron does not hit that threshold, then the
neuron will not fire
The neuron decides how much of the electochemical signals to send to the next
neuron; all or nothing
Answer:
The correct answer is - The neuron's intracellular charge must get more positive to meet a certain thresh hold in order to depolarize. If the neuron does not hit that threshold, then the neuron will not fire
Explanation:
In neuroscience, the depolarization of neurons shows the all or none law which is also called as all or nothing response. It states that all action potentials have the same size and the potential or strength of a nerve cell does not depend on the stimulus strength as all are the same size.
If a stimulus reaches a particular threshold cell or fiber will fire so either it will fire or not cross the threshold this is all or nothing response or law and depolarization is an example of it.
Which of the following is true of the Celsius scale A.) 212° is the boiling point of water b.) 0° is absolute zero c.) 0 degrees is the freezing point of water or D .) 32° is the freezing point of water
Answer:
The correct answer is C., or ¨0 degrees is the freezing point of water¨.
0 degrees is the freezing point of water is true about the Celsius Scale. Therefore, option (C) is correct.
Water freezes at "zero degrees" on the Celsius scale. Under ordinary climatic conditions, water's freezing point is 0 degrees Celsius and its boiling point is 100 degrees Celsius. Many countries use this scale to measure temperature.
However, the Fahrenheit scale, used mostly in the US, has different freezing and boiling points for water. Water freezes at 32 degrees Fahrenheit and boils at 212. Therefore, option (C) 0 degrees is the freezing point of water is correct.
Learn more about freezing point, here:
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Spartina, shown here, is a plant that grows along the South Carolina coast. it’s roots are often submerged in brackish water ( mixture of fresh and salt water ) as the tide rolls in and out along the shore
Answer:
D
Explanation:
How does energy control the loss of water to a hypertonic enviorment to avoid dehydration?
22.-26 Fill in the blank. The Cell Theory states:
All
things are composed of
are the basic unit of structure and
in living things.
New cells are created from
Answer:
1.living things
2.cell
3.cell
4.function
5.pre existing cell
Explanation:
PLEASE I REALLY NEED HELP I GOT A LOT OF HOMEWORK, APEX IS JUST A PAIN:/ What is one limitation of a wind tunnel that is used to model the effect wind has on a rocket.
A. It provides valuable information about winds effect on how rockets fly.
B. It shows how the rocket performs in the atmosphere, but not in space
C. The ceramic tiles that coat a rocket can be tested
D. The airflow in a tunnel can be varied based on the altitude of the rocket.
Answer:
The answer is either B or C
Explanation:
emilythompson35464
hope this helps srry if it doesn't tho
Answer:
B. It shows how the rocket performs in the atmosphere, but not in space
Explanation:
This is actually not as complicated as it may seem. Wind tunnels are a way that scientists and students can see how wind can affect rockets. The Wright brothers used a wind tunnel to test there model planes. The reason it has limitations is there is no wind is space because there is no gravity which means there is no particles that make up weather and wind. Wind tunnels help us know how the rocket will perform on the earth, but not in space.
PLEASE GIVE ME BRAINLIEST, THX, AND 5 STAR IF I AM RIGHT. TELL ME IF I AM RIGHT!!!!
:)
A chemical that binds to a receptor with the channel directly on it is a(n _____ ?