What causes surface tension in water?

Answers

Answer 1

Answer:

the molecules on the surface to contract and to resist being stretched or broken.

Explanation:


Related Questions

3. Phosphorus represents only 1% of human body weight. However, it is a building
block of very important macromolecules. Describe some of the cellular functions
that would not be possible without phosphorus.

Answers

Answer:

It would be impossible to store and transfer genetic information

It would be impossible to carry out majority of cellular activities due to lack of usable energy.

Explanation:

Phosphorus, as stated in the question, represents a very low amount in our body system, however, its role in living systems cannot be underestimated. Phosphorus is a vital component of major biomolecules in our system.

- It is the building block of the NUCLEOTIDES that make up nucleic acids. Nucleic acids (DNA and RNA) store genetic information and help transfer it to offsprings. However, without one of the elemental components (phosphorus) that make up its structure, it will not be produced. Hence, the storage and transfer of genetic information will be impossible.

- Phosphorus also makes up the structure of the ADENOSINE TRIPHOSPHATE (ATP) molecule. ATP provides the cell with all the energy used in carrying out cellular functions. However, the absence of phosphorus needed for the synthesis of ATP, ATP will not be produced and ultimately no energy.

Which statements describe the energy in a food web? Select three options,
When an organism eats another organism, it loses energy,
Producers have the greatest amount of available energy,
Energy can follow many different paths,
When an organism eats another organism, it gains energy,
Producers have the least amount of available energy,
Energy always follows a single path.
i

Answers

A food web starts with the energy that is produced by a plant, of which an organism eats it, such as a caterpillar, which is eaten by a bird and so on.

Answer:

B, C. D!!!!!!!!!!!!!!

Explanation:

lmk if i said the wrong one!

I will change my answer so no one else gets it wrong :)

Sand on a beach is being continually washed farther down the shore. People who live near the beach want to stop this erosion. Which of the following structures or methods designed to deter erosion would best solve the problem?

A. groin
B. seawall
C. breakwater
D. replenishment

Answers

Answer:

The Answer is Letter A.

Explanation:

let residents build groins

1. The spinal cord is organized in 35 segments.
o True
O False

Answers

The answer to this is false

What will happen to an ecosystem that is experiencing a prolonged drought?

Answers

If an ecosystem was experiencing a prolonged drought, there would be a big decrease in the population. All living creatures require water, even the ones well adapted to little water. There probably would be as many planets, for the ones surviving would be ones managing to get water, or ones that can survive off little water. Now on the other hand the animals then wouldn't be getting enough food or water, so then again ones who would manage to survive would be ones adapted to little water and food or are excellent hunters.

  You can also expect some animals to leave the ecosystem look for a better source of water and food.

hope this helps to some degree

The diversity, as well as the number of individuals among different species, may decrease gradually due to the scarcity of water.

What is an Ecosystem?

An ecosystem may be defined as the place or an area where organisms of different species live together and interact with one another for the purpose of food, shelter, and space.

Every living organism on the earth's surface requires water in order to fulfill its requirement for cellular and metabolic activities.

But if the ecosystem experiences a prolonged drought, the physiology of all living organisms is disturbed due to which they leave the ecosystem, hence the number of species gradually lowers.

Therefore, it is well described above.

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Which atom has two unpaired electrons in the outer valence
shell?
O helium
hydrogen
Oxygen
Olithium

Answers

Answer:

Oxygen

Explanation:

The electrons present in an atom are arranged in shells or orbitals. The electrons are filled into these shells based on their energy levels with those shells closest to the nucleus filled first as they have the lowest energies.

The arrangement of electrons around the nucleus of an atom is known as electronic configuration. The outermost electron shell of an atom is known as a valence shell shell and the electrons found in this shell are known as valence electrons. The electrons usually exist in pairs. The first shell can only contain two electrons; the second shell can contain 8. the electrons are singly filled first before pairing occurs.

The electronic configuration of the atoms of the elements in the option are as follows:

Helium : 1s² ; valence electrons are 2 which are both paired

Hydrogen: 1s¹ ; valence electron is 1

Oxygen : 1s²2s²2p⁴ ; valence electrons are 6 wit two unpaired electrons

Lithium : 1s²2s¹ ; valence electron is 1

Helium has two valence electrons but they are paired as its 1s shell can only contain a maximum of two electrons.

Oxygen has 6 valence electrons. Two of these electrons are paired while the other two are unpaired.

Help please due tomorrow!!

Answers

Answer:

Y- x+ Y-

Explanation:

when an atom loses electrons the atom the result is a positive ion. when an atom gains an electron, the result is a negative ion

What is the most important life processes in cells?

Answers

processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.

Answer:

oxygen, and glucose

Explanation:

Two of the chemicals and chemical processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.

hope this helps you:)

The most unsaturated fats have

Answers

Answer:

the most double bonds.

Explanation:

20 POINT QUESTION!!! Does CORONAVIUS have all seven characteristics of a living thing? reproduction, ability to react to stimuli, growth & development, can process and use energy, regulation, organization/order, evolutionary adaptions?

Answers

no, it doesn't. viruses cannot reproduce without a host.

Viruses can reproduce many other viruses at once. Bacteria only reproduce one at a time.
O True
O False

Answers

Answer:

True

Explanation:

True ,viruses can reproduce many other viruses at once

Evan finds a rock. He scrapes it with his fingernail and leaves a scratch. His rock must be:
O a metamorphic rock
harder than feldspar
softer than diamond
made of more than one mineral
HELLP

Answers

The correct answer is C. Softer than diamond

Explanation:

Evan observation is related to the rock's hardness, which is usually measured on a scale from 1 to 10, in which 10 represents the hardest rock (diamond). In the case of the rock Evan found, the fact the rock can be scratched just using a fingernail shows the hardness of this rock is 2.5 or below because only minerals with this hardness can be scratched using the fingernail, while a higher hardness requires more complex tools.

Moreover, in this level of hardness, there are minerals such as gypsum or talc and these are softer than others such as feldspar with a hardness of 6 or diamond with a hardness of 10. In this context, it is safe to conclude this rock is softer than diamond. Also, hardness is not enough to determine if a rock contains two or more minerals or if it is metamorphic.

7. Cockroaches are exposed to a pesticide. After 3 hours, 95% of the insects are dead

Answers

Can you be more specific to the question

The production and transmission of hormones in the endocrine system is MOST similar to which scenario?

Answers

Answer:

You type a text message, which your friend shows to a third party, who reacts to it.

Explanation:

Copied from google.

When a message is shown to a friend who shows it to another person.

What is the endocrine system?

A group of organs called glands makes up your endocrine system. These glands, which may be found all over your body, produce and emit hormones.

Hormones are substances that communicate with your organs, skin, muscles, and other tissues through your blood to coordinate various bodily activities. These messages instruct your body on what to do and when.

The level of hormones in your blood is regularly monitored by your endocrine system. In order to transmit the message, hormones send their messages by locking them into the cells they intend to reach.

When your hormone levels increase, the pituitary gland signals other glands to stop manufacturing and releasing hormones. The pituitary gland has the ability to tell other glands to manufacture and release additional hormones when levels fall below a specific threshold. Homeostasis is a mechanism that functions similarly to your home's thermostat. Almost every process in your body is impacted by hormones.

Therefore, it is like the scenario where a message is shown to a friend who shows it to another person.

Read more about the endocrine system, here

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explain when you would use a line graph

Answers

When you need to track changes over and short or long period of time

Pythagoras's Model has the sun in center of the universe.
True
False

Answers

Answer:

i think its false, i checked wikipedia and it says that he thought the sun revolved around a "central fire"

Explanation:

A 35-year-old bank clerk presents to your office for evaluation of fatigue. She has a 15-pack-year history of smoking and had rheumatic heart fever in childhood. On auscultation of her heart, the S2 sound is widely split; that is, it persists like that throughout the respiratory cycle. What is the most likely cause of the wide and fixed S2 split?

Answers

Answer:

I

Explanation:

7. If a growing child has deficient production of pituitary secretions, this child would
a. Develop acromegaly
b. Become a dwarf
C. Mature sexually at an early age
d. Be in constant danger of becoming dehydrated

Answers

Answer:

b. Become a dwarf

Explanation:

A decreased secretion of growth hormone can result in pituitary dwarfism which then decreases the rate of cell division of cartilage cells in the epiphyseal plate

2. The loss of the structure labeled U in the

figure above results in the formation of

what? SC.8.P.8.7

A isotope

B ion

C element

D) atom

Answers

Answer:

element

Explanation:

Answer: element

Explanation:

How are mean and median alike?how are they different?

Answers

Answer:

Mean is the average you'll get when you add all your numbers then divide by the number of numbers you have. On the opposite side, median is the middle number within your list of numbers. If there isn't a middle number, take the two middle numbers and add them. Now, for how they are alike, I'm not so sure :'), but my closest guess would be they are fairly close together.

Sorry it's so long, hope I helped you :')

Explanation:

please help me with this :,,,,,,,,,,,,,)

Answers

Answer:

using the formula

v=l*w*h

a. 8cm³ b. 384cm³ c 27cm³ d.75cm³ e200cm³ f 48cm³

g 49cm³ h 96cm³ i 1000cm³

Which of the following is an example of positive feedback? 1.)contractions in birth. 2.) regulations of blood glucose levels. 3.) regulation of body temperature

Answers

contraction in birth

11- El Pirata Barba Plata ha llegado a la isla del Coral para buscar un
tesoro. En el mapa pone que, desde la orilla, debe recorrer 3,7 hm a la
pata coja hacia el centro de la isla, y después otros 8,5 dam dando
volteretas en la misma dirección. ¿Cuántos metros recorrerá en total
desde la orilla hasta el tesoro? * cuál es la repuesta ​

Answers

Answer:

El pirata recorrerá 455 metros

Explanation:

3,7 hectómetros (hm) = 370 metros (m)

8,5 decámetros (dam) = 85 metros (m)

>> Distancia en metros = 370 m + 85 m  = 455 metros

El hectómetro (hm) es una unidad de longitud que equivale a 100 metros, donde el prefijo hecto indica la equivalencia a 100 metros. Por su parte, el decámetro (dam) equivale a 10 metros, donde el prefijo deca indica la equivalencia a 10 metros.

how is sexual reproduction in plants become evolved to become less dependent on water?

Answers

Answer:

The Gymnosperms and Angiosperms are groups of plants with seed, which means that they don't necessary acquire water for fertilization. ... The sperm (male gamete) of gymnosperms is enclosed in a pollen grain. Thi structure is protected from desiccation and can reach the female organs without dependence on water.

Explanation:

benifits of seroranin

Answers

Answer:

Serotonin is an important chemical and neurotransmitter in the human body. it is believed to help regulate mood and social behavior, appetite and digestion, sleep, and memory

If water has a density of 1g/cm3, what must be true about the density of ice​

Answers

Answer:

Water is more dense than ice, so ice will have lower density that make it float

Camille was excited when the new instrument showed up at the lab. She
opened it up and started using it right away. What was her error?
A.) He used an inappropriate instrument.
B.) He used an uncalibrated instrument.
C.) He misread a measurement.
D.) He used the incorrect units.

Answers

Answer:

I would say B- it was uncalibrated

Explanation:

he did not take the time to make sure it was calibrated before use

what plays a key role in stimulating appetite and enabling us to taste food

Answers

Answer:

taste bud is the one that stimulate appetite and enable us to taste

Explanation:

because without the taste bud, we won't know that a particular food contain ions, acids and base

which of the following is the best explanation of how one organelle and a cell directly supports the work of another organelle to maintain cellular homeostasis

Answers

Answer:

All organelles have specific things that they are responsible for, all organelles work together to support the cell to work which maintains homeostasis. Organelles know their jobs and do them right so that the cell can function properly.

All of the following are included in the forebrain except the
A. cerebellum
B. cerebrum
C. thalamus
D. hypothalamus
Please select the best answer from the choices provided

Answers

Answer:

D.

hypothalamus

Explanation:

edge

All the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).

The forebrain (also known as the prosencephalon) is the largest region of the brain.

The forebrain is composed of the cerebrum (telencephalon), thalamus, hypothalamus, pineal gland and limbic system.

The cerebrum is recognized to be the biggest portion of the brain.

On the other hand, the cerebellum is a brain structure located between the brainstem and the cerebrum.

The functions of the cerebellum include motor abilities, sensory perception and body posture/balance.

In conclusion, all the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).

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