Answers
Answer:
it's A, I'm taking this test on apex and got it right. hope this helps!
Explanation:
also here's an explanation: The frequency of a sound wave is what your ear understands as pitch. A higher frequency sound has a higher pitch, and a lower frequency sound has a lower pitch. In Figure 10.2 sound A has a higher pitch than sound B.
The property of a sound wave that increases as the pitch of the sound increases is A. Frequency.
What is frequency of a sound wave?Frequency is a measure of the number of cycles or vibrations per unit of time, and in the case of sound waves, it is the number of pressure variations that occur per second. It is usually measured in Hertz (Hz), with one Hz representing one cycle per second. The frequency of a sound wave determines the pitch of the sound that we hear. Higher frequency sound waves produce higher-pitched sounds, while lower frequency sound waves produce lower-pitched sounds.
For example, a sound wave with a frequency of 440 Hz is perceived as the musical note A above middle C on a piano, while a sound wave with a frequency of 220 Hz is perceived as the musical note A an octave lower. The range of frequencies that can be heard by the human ear is approximately 20 Hz to 20,000 Hz, with the highest frequencies typically being heard by young children and decreasing with age.
Therefore, frequency is the right answer.
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Related Questions
What is the genotype and phenotype ratios for F2 from last punnet square?
Answers
Answer:f2 is better
Explanation:
is lactase exergonic
Answers
Answer:
The correct answer is - yes lactase action is exergonic.
Explanation:
Lactase is an enzyme located in the small intestine of mammals including humans, however it is produced by many organisms in their body. Lactase is an essential enzyme as it helps in the digestion of the whole milk by breaking down the lactose, sugar present in milk.
Exergonic reactions are the reaction that releases energy by the breaking of molecules in any reaction. Generally, catabolic reactions are exergonic lie lactase catabolizes the lactose present in milk and release energy.
Thus, the correct answer is - yes lactase action is exergonic.
What would make the water in a small region of the ocean more salty?
A. heavy rainfall over the region
B. melting an iceberg in the region
C. water from a river running into the region
D. evaporation of a lot of the water in the region
Answers
Answer:
Its C
Explanation:
Checked it and got it right
Which is the largest? 1. Cells 2. Grain of rice 3. Molecule. 4. DNA
Answers
Answer:
2. Grains of rice
Explanation:
Everything else is microscopic.
Explanation:
It could either be a grain of rice or cell.
Cell,because an egg is also a cell and it is bigger than a grain of rice . Grain of rice because all of them can be microscopic too.
Hope it helps.
Use a diagram to show how ions are formed when a sodium atom comes into close contact with a chlorine atom
Answers
Although the thermosphere is considered part of Earth's atmosphere, the air density is so low we normally think of it as outer space
The space shuttle and the International Space Station both orbit Earth within the thermosphere. Much of the Sun's UV and x-ray
radiation are also absorbed by this layer. The thermosphere gets hotter and expands or puffs up' Because of this the height of the
top of the thermosphere varies. The thermosphere has winds and tides that help move energy around Why is this important for NASA
engineers to know when designing future satellites?
Answers
Answer:
reeeeeeeeeeeeeeeeeeeee
Explanation:
Why does blood appear to be red?
Answers
Answer: Hemoglobin
Explanation:
With both channel and carrier proteins, which way do the proteins flow?
O Into the cell
O Out of the cell
O From lowest concentration to highest
O From highest concentration to lowest
Answers
The correct statement is: With channel proteins, molecules or ions flow passively through the protein from high concentration to low concentration.
What is the proteins?Neither channel proteins nor carrier proteins themselves flow or move in any direction. They are static structures that are embedded within the cell membrane and act as conduits or gates for the movement of specific molecules or ions across the membrane.
The movement of molecules or ions through these proteins depends on their concentration gradient. Channel proteins allow the passive flow of ions/molecules from high concentration to low concentration, while carrier proteins can facilitate both passive and active transport of molecules across the membrane. In active transport, molecules move from low concentration to high concentration, and this process requires the expenditure of energy (in the form of ATP).
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Which of the following statements provides the best evidence that there is a common genetic code that demonstrates the unity of life?
Group of answer choices
Answers
How do Demetri's results show that digestive enzymes are crucial to maintaining homeostasis in the body?
Answers
In addition to breaking down food so that the nutrients may be absorbed, enzymes also generate vitamins like biotin and vitamin K and protect the body from dangerous microorganisms.
What is homeostasis?
Biological system's ability to self-regulate and maintain stability while responding to shifting environmental factors is known as homeostasis.
The body needs a steady supply of nutrients from food that has been digested. They are crucial for maintaining health and carrying out bodily tasks. The body may absorb and use food that has been broken down by the digestive system.
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Molecules are not reacting using current methods. Which change can encourage a reaction?.
Answers
Adding heat to a system can encourage or increases a chemical reaction. Option d)
Change that can encourage a reactionIncreasing the temperature of a process, increase occurs in the average speed of the reactant molecules and we know that when more molecules move faster, the more number of molecules reacts with other molecules which results in faster formation of products.
Generally speaking, raising the temperature of the reaction system, raising the concentration of a reactant in solution, and raising the surface area of a solid reactant will all raise the rate of a reaction. The addition of a catalyst to the reaction mixture can also speed up a process.
In conclusion, adding heat is the right option.
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Full Question: Molecules are not reacting using current methods. Which change can encourage a reaction?
O adding another chemical
O speeding up the molecules by mixing
O removing heat
O adding heat
Alex opens the bread drawer and discovers a moldy loaf of bread. Describe what alex can conclude about the mold using the cell theory?
Answers
Based on the cell theory, Alex can conclude that a particular kind of fungus called mold grows on both plants and mammals. It resembles a cluster of mushrooms under a microscope.
The roots that the stalks, or sporangiophores, are linked to enlarge as they mature into soft meals like bread. Sporangia, which create spores that launch into the air and drift to a new host to multiply, are found atop the stalks.
What are Fungi?Fungi are a group of spore-producing organisms, such as molds, yeast, mushrooms, and toadstools, that feed on organic matter.The presence of chitin in fungi's cell walls distinguishes them from plants, bacteria, and some protists and separates them into a separate kingdom. Like animals, fungi consume matter that has already been dissolved in their surroundings. Typically, this is done by secreting digestive enzymes into the environment. They do not photosynthesize, fungi. They move through growth, except spores (some of which are flagellated), which can move through the air or water. In ecological systems, fungi play a key role in decomposition.The nuclei of fungal cells are membrane-bound and contain chromosomes with coding and non-coding DNA segments known as exons and introns, respectively. Membrane-bound cytoplasmic organelles found in fungi include mitochondria, membranes containing sterols, and ribosomes of the 80S type.To learn more about Fungi, refer to:
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why would moles be common location for a melanoma to originate
Answers
Moles are a common location for melanoma to originate due to UV rays. These rays' damage affects specific genes.
What is melanoma?The cells (melanocytes) that make melanin, the pigment responsible for your skin's color, grow into melanoma, the most dangerous type of skin cancer.
A confluence of variables, including genetic and environmental ones probably brings on melanoma.
Yet, according to medical professionals, the main contributor to melanoma is ultraviolet (UV) radiation exposure from the sun, tanning beds, and tanning lamps.
Therefore, If affected genes no longer work properly, the affected cells may become cancer cells.
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Plss help me with this carbon cycle!!!!
Answers
Answer:
Plants photosynthesize, so they need, thus absorbs carbon dioxide. Marine plants also need carbon dioxide for photosynthesis so they absorb. Dead plant and animal matter decay to release carbon dioxide as a result.
A carbon footprint refers to the greenhouse gas emissions caused both directly, and indirectly, by an individual, a product, an organization, or an event.
(HELP IM CLUELESS) Biodiversity
542 500
450 400 350 360 250 200 150 160 60
Millions of years ago
Examine the graph that shows the changes in biodiversity over the past 500 million years. Analyze the graph at each of the yellow
triangles. Select the options below that correspond to the events occurring at the yellow triangles. Select ALL that apply.
A)
B)
C)
The change in biodiversity was most stable at the times indicated by the
yellow triangles.
There have been five mass extinction events, with the earliest occurring at
450 million years ago.
Species were evolving faster than the extinction rates, resulting in new
species forming quickly over time.
Humans were altering the environment too quickly with deforestation and
climate change, resulting in many lost species in a short period of time.
The environment was changing faster than the species were adapted at the
time points labeled by the yellow triangles, resulting in a loss of species.
D)
E)
Answers
Answer:
B) There have been five mass extinction events, with the earliest occurring at 450 million years ago.
E) The environment was changing faster than the species were adapted at the times points labeled by the yellow triangles, resulting in a loss of species.
Explanation:
Which current has a warming effect on the climate of the southeast coast of Africa?
Answers
Answer:
Agulhas Current
Explanation:
The Agulhas Current transports warm water from the Indian Ocean southwards along the South African coast.
Answer:
Agulhas Current
Explanation:
Other persons explanation
Question 13 of 34
Which of the following is a type of polar attraction?
A A metalic bond
8. A hydrogen bond
C. An ionic bond
A covent bond
Answers
Answer: A) Hydrogen Bond
Explanation:
A hydrogen bond occurs when a hydrogen (H) is covalently bound to a more electronegative atom or group forms an electrostatic attraction to another electronegative atom bearing a lone pair of electrons. This is possible due to the polarity of the H-electronegative atom bonds.
Compared to the inside of the cell, the outside of the cell is
Answers
Answer: The Membrane
Explanation: Hope this helps:)
what is the meaning of thawing
Answers
Answer:
it is when something unfreezes usually
Explanation:
like ice, if you leave it out over time it turns into liquid or meat if it's frozen you leave it out to unfreeze
following are the types of functions performed by proteins in the human body
Storage
Support
Regulation
Defence
Select the appropriate type of function of proteins for each of the given descriptions
Description Type of Function
1. Recognition of foreign molecules ????
2. Receptors of extracelluar signals ????
Answers
Answer:
1. Recognition of foreign molecules - Defense
2. Receptors of extracellular signals - Regulation
Explanation:
How would extra carbon dioxide
in a lake be removed?

Answers
Answer:
Carbon dioxide in a lake can be removed by chemical treatment using liming agents such as sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and increases the pH and alkanity of the lake
Explanation:
i need 2 example each for connective of tissues, Epithelial, muscle and nervous
Answers
Answer:
Connective tissue adipose, cartilage, bone.
Epithelial epidermis, the outermost layer of the skin.
Muscle skeletal, cardiac, and smooth.
Nervous neurons and neuroglia
Change in fish trait over time
Answers
Virulence of MYCOBACTERIUM TUBERCULOSIS
Answers
Mycobacterium tuberculosis is a germ that causes tuberculosis (TB), a very contagious and serious illness that mainly impacts the lungs.
The strength of Mycobacterium tuberculosis to make people sick and how bad the sickness is.
What is the Virulence of MYCOBACTERIUM TUBERCULOSISThere are many things that make M (a type of bacteria) very harmful. Tuberculosis is a disease caused by bacteria that affects the lungs and can spread to other parts of the body.
The cell wall is made up of M. Tuberculosis has a special outer layer made up of special fats, like mycolic acids. These fats help the bacteria avoid the body's defense system and can cause a strong reaction that leads to harm in the tissue.
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Which of the following is NOT correct? The technique of Southern hybridisation gives information on:
1. Which colonies in a transformation experiment contain the gene of interest
2. The length of repeat sequences in the technique of DNA fingerprinting.
3. Where a gene sequence is located within a cloned DNA sequence
4.The number of specific genes in a genome coding for a particular protein.
5. The nature of the proteins made as a result of gene expression.
Answers
Answer:
2
Explanation: i did it
A division is always associated with _____.
A. plants
B. animals
C. plants or animals
D. plants and animals
Answers
Division is a biological categorization level that is used to categorize or research plants. Consequently, a division must be related to plants.
What does biological classification imply?Living creatures are categorized by scientists based on their biological characteristics. Organisms are grouped based on how similar they are. In the past, similarity was determined by examining the physical characteristics of an organism, but modern classification uses a variety of techniques, including genetic analysis.
Which are the three categories used in biology?As according similarities and differences, recognized species are divided into several groupings or taxa, which is the definition of classification. Phylogenetic classifications, Natural classifications, & Artificial classifications are the three categories of categorization.
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What organisms can be found in a pond or a creek?
Answers
Answer:
Raccoons, ducks, geese, and swans visit ponds. There are many smaller animals as well. Frogs, toads, and many insects begin their lives in ponds and live nearby after they are grown. Turtles, snakes, rats, salamanders, worms, and spiders can also be found
Help please ASAP please fast
Answers
Answer:A. To make a copy of the cell,s DNA
Suggest a three ways in which we could reduce the prevalence of HIV aids in Ethiopia in for each method explain how it will work 
Answers
The following three strategies could help to lower the incidence of HIV/AIDS in Ethiopia: enhancing HIV education and awareness campaigns, making HIV testing and counselling services more accessible.
How can HIV be stopped in Ethiopia?Since the outset of the response to the HIV epidemic, condoms have been a crucial component of Ethiopia's HIV prevention effort. The nation uses a comprehensive marketing approach to distribute condoms, including free condoms, social marketing, and commercial distribution.
What does Ethiopia's programme to combat HIV/AIDS entail?One of the programmes under the Disease Prevention and Control Directorate is the National HIV/AIDS Program, which is in charge of designing, planning, and carrying out interventions and activities relating to HIV and viral hepatitis in Ethiopia.
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Why do you adjust the interpupillary distance between the eyepieces? Of a microscope
Answers
The interpupillary distance can go from 58 and 72mm. It is the distance betwen your pupils.
So, in order to be able to have a good visual focus, it is nesesary that you adjust it.