Answer:
The balloon shrinks
Explanation:
According to Charles law, temperature and volume are directly proportional. When temperature increases, volume of the gas inside the balloon increases and vice versa at constant pressure.
However, when the balloons are taken into an ice hockey rink and their temperatures drop from 95 degrees Fahrenheit to 45 degrees Fahrenheit, the molecules of gas in the balloons loose energy and move at slower speeds tending to stick closer together. The volume of the balloon therefore decreases accordingly. This means that the balloon shrinks.
In a group of water molecules, hydrogen bonds form between ?
A) two hydrogen atoms in different water molecules
B) the oxygen atoms in different water molecules
C) the oxygen atom in one molecule and the hydrogen atom in another water molecule
D) the hydrogen molecules in a single water molecule
F) Option 3
Pls help will give 14 points for this and brainlist
The correct answer is option c): the oxygen atom in one molecule and the hydrogen atom in another water molecule.
Intermolecular forces or bonds are those interactions that hold molecules together. These are electrostatic forces.
Van der Waals forces are weak attractions that hold electrically neutral molecules together. At some point these molecules present an induced dipole, that is, the molecule acquires a partially positive and a partially negative charge momentarily, causing them to attract each other.
There are Van de Waals forces: Dipole - Dipole Forces, London Forces, Ion - Dipole Forces.
The dipole-dipole forces are forces of attraction between polar molecules. These molecules attract when the positive end of one of them is close to the negative of the other.
Hydrogen bonds are a type of dipole-dipole force. In this interaction, a molecule that presents hydrogen interacts with another that presents an atom with high electronegativity, such as oxygen, fluorine or nitrogen (O, F, N).
In this way, between the hydrogen, which has a low electronegativity and the electronegative atom, an interaction is established, due to their opposite charges.
Each water molecule has three atoms, two hydrogen and one oxygen.
In this case, between the different water molecules, the hydrogen bond is formed as follows: Oxygen is very electronegative, that is, it attracts the electrons of the bond with much more force than hydrogen.
As a consequence of this, oxygen is negatively charged and hydrogen positively, and a dipole moment is created. In this way, the water molecules clump together with each other.
In summary, the hydrogen in one water molecule is attracted to the oxygen atom in another water molecule.
So, the correct answer is option c): the oxygen atom in one molecule and the hydrogen atom in another water molecule.
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https://brainly.com/question/17098636?referrer=searchResultshttps://brainly.com/question/17777036?referrer=searchResults(33) Energy released when organic compounds break down is measured in what unit?
(A) mg/sec (B) ug (c) Calories (0) °Clg
Answer:
Calories
Explanation:
It is called calories because calories is the unit of measuring energy gotten from the consumption of food or drink when it is breakdown.
During digestion, when the bonds binding food are broken down, energy is released . This energy is used for metabolic activities of the body and the energy released is measured in units called kilocalories or calories
A cat waiting by its bowl each morning for you to feed it is an example of an)_______ response to an _____ stimulus.
OA) learned; internal
OB) learned: external
OC) instinctive: internal
O D) instinctive: external
HURRY I NEED HELP PLEASE I WILL GIVE 20 POINTS
Which statement describes the location of an earthquake’s epicenter? It is located using a single set of data. It is determined by the depth of the focus. It is determined by the arrival time of surface waves. It is located at the point where circles intersect on a map.
Answer:
insight and trail error learning
Explanation:
took the test :)
Answer:
Im pretty sure its D Im sorry if its not
Explanation:
How is a pedigree chart interpreted?
Answer:
Pedigrees are used to analyze the pattern of inheritance of a particular trait throughout a family.
What is the correct answer?
How would you difference between pollen cells and algae cells?
Answer:
The difference between the given terms is summarized below.
Explanation:
Pollen cells:
Single or perhaps even more vegetative cell lines as well as a reproductive cell come in the form of pollen. The masculine gamete is not a pollen crop on its own.Algae cells:
There will only be a singular nucleus throughout many of these algal cells, whereas other cells have become multi-nucleate. Furthermore, several other algae were indeed saponaceous, which means that cell walls aren't differentiated from one of the several nuclei.The differentiation between pollen cells and algae cells can be seen from the habitat in which they thrive and their structural characteristics.
The pollen cells are reproductive structures in a plant that gives rise to the male gametophyte that houses the male reproductive cell of a plant. During pollination, they are being transferred to the stigma by to the presence of spikes around the pollen cells which attaches to the bees (an agent of pollination).
The algae cells are single or multinucleate eukaryotic cells, that live in swampy and wet habitats. The presence of the tail in the cells helps in the locomotion of the cells to the area where their fertilization takes place.
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Use the drop-down menus to determine whether a bacterial example is beneficial or harmful to humans. Coriariaceae coriaria is a species of bacteria that helps convert nitrogen into a form usable by plants. Mycobacterium tuberculosis is a species of bacteria that causes the disease tuberculosis in people. Lactobacillus acidophilus is a species of bacteria that is found in yogurt and can help people improve their digestion. Lactobacillus sanfranciscensis is a species of bacteria that makes the sour flavor in sourdough bread. It gets its name from San Francisco, where a great deal of sourdough bread is made.
Answer:
beneficial, harmful, beneficial, beneficial
Explanation:
Coriariaceae coriaria is a species of bacteria that helps convert nitrogen into a form usable by plants.beneficialMycobacterium tuberculosis is a species of bacteria that causes the disease tuberculosis in people. harmful
Lactobacillus acidophilus is a species of bacteria that is found in yogurt and can help people improve their digestion. beneficial
Lactobacillus sanfranciscensis is a species of bacteria that makes the sour flavor in sourdough bread. It gets its name from San Francisco, where a great deal of sourdough bread is made. beneficial
Answer:
Benefitial
Harmful
Benefitial
Benefitial
Explanation:
I just did the assignment Edge 2021. Hope this helped!
tryptophan is an amino acid . What bio molecule uses amino acids as a building block ?
A - carbohydrate
B - protein
C - nucleic Acid
D - lipid
Which condition causes a hurricane to rotate? a local storm surge the Coriolis effect several large waves severe coastal flooding
Answer:
the coriolis effect
Explanation:
took the test
The Coriolis effect is the condition which causes a hurricane to rotate in this context.
What is Coriolis effect?This effect makes things traveling long distances around Earth appear to move at a curve.
The hurricane when under the Coriolis effect will therefore make it rotate thereby making option B the most appropriate choice.
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What can be said about the DNA analysis of closely related organisms.
Answer:
Now scientists can also analyze DNA to discover how closely organisms are related. Every living creature has DNA, which has a lot of inherited information about how the body builds itself. Scientists can compare the DNA of two organisms; the more similar the DNA, the more closely related the organisms.
Definition: All the individuals of a species that live together in one place at the same time
Example: this of humans in the United States in 2005 is around 275,000,000
Answer:
Population
Explanation:
A population is a group of individuals of the same specie that lives together in one place at the same time.
Individuals in a particular population must be able to interbreed and produce viable offspring.
A population of different species makes up a community. We can talk of a population of rats on an IslandA community of living things in San Marino. Different communities typifies an ecosystem.ALOT OF POINTS EXAPLAIN WHY?
Should humans suppress forest fires?
no
watch the world burn .
Answer:
Yes
Explanation:
Trees provide us with free oxygen and they provide endless homes to various kinds of animals including birds and squirrels. Not only that, but some trees produce fruits that animals may eat, and for some, this can be their only food source.
How can you reduce friction between two
surfaces?
Answer:
Reduce the contact between two surfaces
Make the surfaces smooth
reduce the force acting on two surfaces
make the surface more streamlined
what does the brain do in homeostasis
Explanation:
the brain, particularly the hypothalamus, is primarily responsible for the regulation of energy homeostasis. The brain monitors changes in the body energy state by sensing alterations in the plasma levels of key metabolic hormones and nutrients.
Are these answers correct?
Answer:
im pretty sure there all correct im just not sure ab 2
Explanation:
*Please Help* Invertebrates have a higher net production efficiency than mammals. Which statement most likely explains this observation?
A. Invertebrates are more abundant than mammals in an ecosystem.
B. Mammals maintain their body temperature; invertebrates don't.
C. Most mammals are secondary consumers. Most invertebrates are primary consumers.
D. Invertebrates have smaller bodies than mammals.
Answer:
C. Most mammals are secondary consumers. Most invertebrates are primary consumers.
Explanation:
Net production efficiency (NPE) refers to how efficient an organism at one trophic level utilizes and transfers energy to the next trophic level. Ceetain organisms called CONSUMERS obtain energy by feeding on other organisms. They use this energy for their metabolic activities and transfer the rest when eaten or fed on.
As the trophic level increases, the net production efficiency decreases. This is because organisms at the lower level use energy less than those at higher trophic levels. In this question, invertebrates are mostly PRIMARY CONSUMERS (lower trophic level) while mammals are mostly SECONDARY CONSUMERS (higher trophic level). Therefore, invertebrates use energy more efficiently (less) than mammals, making them have a HIGHER net production efficiency than mammals.
What do all forms of active transport have in common?
Answer:
-Using ATP
Explanation:
Cells use various mechanisms to move substances across their plasma membranes. Plasma membranes are selectively-permeable and capable of controlling all movement of substances through:
passive transport, which does not use energy; and active transport which requires chemical energy in the form of ATP.Active transport involves the movement of substances out of cells against their gradients. For instance, glucose is transported across the membrane with specialized carrier proteins embedded within the membrane, and active transport; the cell's interior is highly concentrated- glucose is a high energy storage molecule required by many metabolic processes and required in high amounts.
The forms of active transport that should be in common is by using the ATP.
Forms of active transport:The plasma membrane should be selected also capable for controlling the movement of the substance via the passive transport where it does not use the energy and the active transport means when it needs the chemical energy in the form of ATP.
The interior of the cells should be highly concentrated glucose that shows an high energy storage molecule.
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Which of the following factors does not impact the infiltration rate of
water?
The porosity/permeability of the soil
The water table level
The rate of precipitation
The amount of pollution in a nearby stream
Answer:
The amount of pollution in a nearby stream
Infiltration is the process in which the water seeps into the soil surface. Thus, option B is correct.
What is Infiltration?Infiltration is an important phenomenon that defines percolation of water in the soil. It is important for maintaining the ground water level.
The water seeps down into the soil gradually through capillary action. Infiltration is mostly observed during a rainfall.
Infiltration takes place till the soil accomodates maximum water. Beyond that, infiltration will stop as the soil is said to be saturated with water.
Infiltration is measured in inches per hour. It is the depth of water enters into the soil in an hour.
Infiltration rate is determined by various factors. Soil porosity and texture of the soil is one such important factor for water infiltration.
Porosity of the soil can be deteriorated through human activities. Large pores hinder percolation of water.
Infiltration is also determined by the intensity and duration of precipitation.
Therefore, infiltration is important for increasing the water table for further water storage.
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Which idea did Lamarck propose that was rejected by his fellow scientists?
can i have brainest? please? anways hope i helped
Answer:
The correct answer will be acquired traits can be passed to offspring.
Explanation:
Lamarck is known for his idea of "inheritance of acquired traits" by studying neck size of giraffes and stated that:
1. New organs or traits can be produced by long use during lifetime as response to external environment,
2. characteristic is inherited to the next or succeeding generations.
3. Organ can disappear if not used.
Scientists were not able to find and explain evidence for the theory for example :
1. The blacksmith’s arm- enlarges when used continuously against external resistance like weight of the hammer but it is not necessary that the smith’s children at birth would have large arms or later in his life.
2. Skilled Hands of a musician- skillful hands of a musician causes no increase in the size of the fingers and this trait might be passed to musician’s children and they also play instrument skillfully with no practice.
Thus, acquired traits can be passed to offspring is the correct answer.
What tests can be used to diagnose phenylketonuria?
Select all that apply.
- saliva tests
- blood tests
- allergy tests
- genetic tests
Answer:
The correct answer is blood tests and urine tests.
Explanation:
I just took the test and it was correct.
.Which of the following lists contains only arthropods?
A
annelids, insects, myriapods CADA STAVI819 UAB
B.
arachnids, crustaceans, myriapods
С
crustaceans, insects. molluscs
D insects, myriapods, nematodes
Answer:
Arachnids, crustaceans, myriapods.
Explanation:
Arthropods are animals that form the phylum Euarthropoda. This phylum includes the arachnids, crustaceans, myriapods, and insects. The defining characteristic for an animal to be considered an arthropod is that it has to have an exoskeleton, meaning that the skeleton of the animal is acting as a shell to the body, covering it from the outside.
At present, all of the species of arthropods are small in size, though in the distant past there were speciemens that can be considered as medium-sized or even large. The exoskeleton has its advantages and disadvantages. An advantage is that it is very hard and it covers fully the internal organs, thus protecting them. A disadvantage is that it limits the size to which these animals can grow as the exoskeleton cannot support the weight of the body after certain point.
Living things need energy to carry out their life processes. Animals get this energy from food through a process called cellular
Choose...
. The first stage, glycolysis, occurs in
Choose...
conditions, or without oxygen. The second stage, called the Krebs cycle, and the third stage, electron transport, require the presence of oxygen, and are therefore
Choose...
.
Answer:
Organisms mainly use two types of molecules for chemical energy: glucose and ATP. Both molecules are used as fuels throughout the living world. Both molecules are also key players in the process of photosynthesis.
Explanation:
What was G Floyd's afvorite color...
Answer:
neon
Explanation:
hope it helps
Answer:
I can't be sure, but I would guess neon blue...
Why do some igneous rocks have holes? Name and explain.
Pls tell me which igneous rocks have holes
Answer:
Igneous rocks like pumice have holes because the maga/lava cools quickly, trapping air and gas bubbles inside.
Explanation:
Hope this helps u :D
Answer:
Igneous rocks like pumice have holes because the maga/lava cools quickly, trapping air and gas bubbles inside.
For the following questions write "true" if the statement is true. If the statement is false, correct the
underlined word to make the statement into a true statement.
9.
The energy flow in photosynthesis and cellular respiration occurs in the
same direction.
10.
Photosynthesis deposits energy in Earth's "savings account" for living
organisms.
11.
Cellular respiration removes carbon dioxide from the air.
W
Photosynthesis takes place in nearly all life.
12.
Answer:
9. true
10. true
11. true
12. false
Why is there variation (differences) between the phenotypes of our protein pals?
*Use the following terms in your answer: Nitrogen Bases, DNA, Protein*
Answer:
Explanation:
Proteins are large molecules made from amino acid. During protein synthesis, a sequence of three DNA or mRNA nucleotides (that are usually denoted with the nitrogenous bases of the nucleotides) correspond to different amino acids. These sequence of three are called codons which eventually code for different amino acids and the amino acid sequence, on its own, forms proteins. Different amino acid sequence forms different proteins thus leading to phenotypic variation of our protein as said in the question
A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the carbon cycle from the food they eat?
Answer:
Cellular respiration
Explanation:
Herbivores are organisms that feed on plant materials solely. They are usually animals like sheep, cattle, goats with four stomach compartments. They are part of the global carbon cycle which shows how carbon is circulated in nature.
Plant matter is broken down by herbivores through a series of metabolic steps. The final product is a glucose laden material which is the raw material needed for cellular respiration. When oxygen combines with the glucose, energy is liberated, and carbon dioxide, a waste product is released into the atmosphere. This way, carbon is cycled in the ecosystem.Answer:
Herbivores eat plants, producing carbon dioxide during cellular respiration that is released into the atmosphere.
Explanation:
Which type of cell is capable of self-renewal?
stem cell
blood cell
muscle cell
neuron
Answer: A
Explanation:
edge
What name is given to a factor which is preventing any increase in photosynthesis?
Answer:
A limiting factor is simply anything in short supply that prevents photosynthesis from occurring at its maximum rate.
Explanation: