the frequency of a drum note is 20Hz. what does this tell you about the drum skin movement
Answer:
The drum skin oscillates 20 times per second
Explanation:
The frequency of a note is dependent on the mechanical activities that occur when it is produced. A drum is beaten in this case. The oscillation of the drum skin transfers sound waves to the air particles which move at the same frequency before reaching our ears.
If the frequency of the sound wave is 20 Hz this means that the wave is oscillating 20 times in one second. For the drum to produce such a sound, the skin must have been oscillating at the same frequency of 20 oscillations per second too.
Digestive system plays one of the major functions of the body. Write down the importance of the digestive system to keep your body healthy. Instruction: Write down the answer in minimum 60 words. quick due tomorrow
Answer:
The digestive system plays one of the major functions of the body. Without it, you couldn't be able to get the nutrients you need to grow properly and stay healthy. It is very important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. Foods and drinks must be changed into smaller molecules of nutrients before the blood absorbs them and carries them to cells throughout the body.
If a chlorine atoms gains or loses a valence electron, it becomes a charged particle called a/an______?
Answer:
ion... ions are nagative and positive charge atom
what is megaphylls and write the functions of it
Answer:
Generally, the main function of both microphylls and megaphylls is to undergo photosynthesis. In comparison, the main structural feature of megaphylls is the presence of multiple veins. Also, they contain leaf gaps.......
Animal cells do not directly contact
pure water. Which type of solution are
our cells bathed in?
A. hypertonic
B. hypotonic
C. isosmotic
D. isotonic
Answer:
D. IsotonicThe cells of your body are bathed in tissue fluid which is also a solution of salts, sugars and other chemicals in water.
Explanation:
What will most likely happen if the planton population decreases in this ocean system
Answer:
The answer is B, shrimp will have more difficulty finding food.
Explanation:
Answer:
a) Salmon will completely disappear from the ocean.
b) Shrimp will have more difficulty finding food.
c) There will be a fast growth in the shrimp population.
d) Humans will have more salmon available to eat.
So the answer is B.
Hope it helps.
Which of the following is not a type of carbohydrate?
A. multisaccharide
B. disaccharide
C. polysaccharide
D. monosaccharide
Carbohydrates include small or large molecules. Small molecules are monosaccharide or disaccharide. Large molecules are polysaccharide. Option A is not a type of carbohydrate. Multisaccharide.
What are carbohydrates?
Carbohydrates are essential molecules for life as they are the main source of energy necessary for organisms.
Carbohydrates are hydrophilic substances soluble in water and alcohol. Their -OH groups are responsible for that solubility.
Carbohydrates are present as small or large molecules.
Small molecules ⇒ sugars ⇒ monosaccharide and disaccharideLarge molecules ⇒ polysaccharideGlucose is the principal carbohydrate cells use to accomplish their vital functions.
Among the options, the one that is not a type of carbohydrate is Option A. multisaccharide.
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What can be observed only by observing its affect on gravity
Answer:
Dark matter
Explanation:
Without dark matter the world can not be held together
A student is testing whether light is required for corn seeds to germinate. He plants one group of seeds in soil in the dark and leaves the other group exposed to light, sitting on moist paper towels.
Answer:
1 for the first one and the second one is the 3rd one
Explanation:
so 1 and 3
Answer:
number 1 for the first question
number 3 for the second question
Explanation:
Smita is experimenting with how a paper airplane's shape affects the
distance it will fly. Which action is the result of her logical reasoning?
A. She follows her procedure carefully.
B. She records only the data that support her favorite hypothesis.
C. She decides to use the same type of paper for each airplane.
D. She decides to perform the experiment outside on a windy day.
+ PREVIOUS
Answer:
hey have you gotten the answer, sorry I'm struggling with this question
Answer:
C
Explanation:
I’m a genius
what observations do you have about the plant cell
The plant cell is eukaryotic and is surrounded by a cell membrane and a cell wall made up of cellulose.
What is a plant cell?Plant cells are eukaryotic cells with a genuine nucleus and particular organelles to carry out particular tasks. Plant cells do, however, include several organelles that are unique from those seen in other eukaryotic cells.
Chloroplasts, cell walls, and intracellular vacuoles are a few characteristics that set plant cells apart. Chloroplasts are responsible for photosynthesis, cell walls provide plants the strength to stand upright, and vacuoles control how cells handle water and store other molecules.
Parenchymal, sclerenchyma, and collenchyma are some types of plant cells. These cells are different in structure and function.
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Which organisms transform nitrogen to a form that is useful to plants?
bacteria
animals
fungi
humans
Answer:
Bacteria
Explanation:
Nitrogen-fixing bacteria
Identify two distinguishing factors of a nearby ecosystem, and name five kinds of organisms that live in that ecosystem.
In the box provided explain why living organisms
contain more hydrogen atoms than any other
atoms, yet 65% of a typical organisin's mass is
oxygen
Answer:
why do living organisms contain more hydrogen atoms than any other atoms, yet 65% of a typical organism's mass is oxygen? A large portion of an organism's mass is in the form of water. Water contains two hydrogen atoms and one oxygen atom. The mass of oxygen is sixteen times that of hydrogen.
Answer:
i copy pasted the question twice and that works idk why tho bu heyy
Explanation:
Evolution occurs by_______,
the process in which
some members of a species, being better suited or adapted to their
environment, produce more offspring than others, so they pass
“advantageous traits" to their offspring,
Answer:
energy
Explanation:
Answer:
Evolution occurs by Life
What does dehydration mean in real life
a gas that the lungs take from the air for the body to use is called?
Answer:
Oxygen
Explanation:
Oxygen is taken in from the air and enters the lungs then the bloodstream; it is then carried out throughout the body.
Answer:
[tex]\huge\boxed{Oxygen}[/tex]
Explanation:
Oxygen is taken by the lungs from the air for it to be used by the body. Oxygen enables us to breath and thus is an important bio-element. We need oxygen as an essential part of our life.
Mitosis, followed by cytokinesis, results in the formation of two genetically identical daughter cells. This is because:______
a. after replication, the material is compared and corrected to be identical. the chromosomes pair up (synapse) in prophase as a counting mechanism.
b. all the genetic material is duplicated then segregated equally to the daughter cells.
c. daughter cells are initially haploid, but they duplicate their chromosomes to become diploid again.
d. the number of chromosomes needs to be reduced before cytokinesis.
Answer:
b.
Explanation:
The correct answer would be that all the genetic material is duplicated then segregated equally to the daughter cells.
Mitosis has to do with the division of vegetative or non-reproductive cells in the body of organisms. At the interphase stage of each cell cycle prior to mitosis, the genetic materials of the cell are doubled or duplicated.
These genetic materials are then distributed equally to the two daughter cells that are produced at the end of the mitotic process. It thus means that the resulting daughter cells are genetically identical in all ramifications.
The correct option is, therefore b.
Mitosis, followed by cytokinesis, results in the formation of two genetically identical daughter cells because: B. all the genetic material is duplicated then segregated equally to the daughter cells.
Mitosis refers to a type of cell division (duplication) through which a single (1) parent cell produces two (2) genetically identical daughter cells.
In a mitotic division, the two (2) genetically identical daughter cells produced by one (1) parent cell generally have an equal number of chromosomes as their parent cell, this process is referred to as duplication division.
In this context, if a cell divides by mitosis followed by cytokinesis, this would result in the formation of two genetically identical daughter cells because all the genetic material is duplicated and then segregated equally to the daughter cells.
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If you were a billionaire philanthropist like Warren Buffet or Bill Gates, where would you focus your efforts against tuberculosis?
Explanation:
1/4x+7/4x-25+3x
PLEASE HELP ASAP
Answer:
-25+5x
Explanation:
hey if you need more help like this use M a t h w a y its helpful !
Answer:
5x-25
Explanation:
You have to add the numbers with the same variable. Add 1/4, 7/4, and 3 together because they have the same variable of x. Don't do anything to the -25 because it doesn't share the same variable, leaving you with 5x-25
Which of the following are branches in the study of biology?*
1) botany, cell biology, ecology, and zoology
2) the genetic code, evolution, and the biosphere
3) cells, tissues, organs, and organisms
4) populations, communities, and ecosystems
You are a forester charged with increasing productivity in a South American forest newly planted with pines from Oregon. You believe that the southern forest lacks the fungal diversity needed by the North American pines and that this lack of fungi is affecting the pines' productivity, but you have no evidence to support your ideas. Which of the following would be the best approach to assess the diversity of fungi likely contributing to tree productivity in the Oregon forest?
a. Do direct sequencing on representative soil samples from across the forest.
b. Expose the trees to radiolabeled CO2and then collect the soil samples with the greatest radioactivity and do direct sequencing.
c. Collect all the fruiting structures (mushrooms, morels, etc.) found above ground.
d. Count all the plant species and multiply by six, as David Hawksworth did when determining the ratio of fungal to plant species in England.
Answer:
The correct answer is : option A.
Explanation:
In this case an individual is experiencing low pines productivity. According to him that lack of fungal diversity affects the productivity of pines in southern forests.
To test this hypothesis or idea the best approach among the given option is to run a direct sequencing on soil samples from all across the forest. By sequencing representative soil samples for the will help in assessing the fungal diversity in particular soil sample and on that basis one can find the relation with productivity of pines.
Thus, the correct answer is : option A.
What provides structure for plants
1. Carbonhyrdrates
2. Lipids
3. Nucleic acids
4. Proteins
Answer:
The correct answer is : 1. carbohydrate.
Explanation:
Cellulose is a major substance present in cell walls of the plants which provides support to the structure of plants. As it is most abundant bio polymer in nature are made up of monomers of glucose molecule joined together by bonds in between specific carbon atoms.
The rigidity of the plant is come from this carbohydrate, cellulose. Lipids, proteins are also component of the plant cell and plays various role in the cell for instance lipid acts as barrier and present in plasma membrane of the plant cell and provide insulation too.
Thus, the correct answer is : 1. carbohydrate.
PLEASE HELP! WILL GIVE BRAINLIEST! Are traits controlled by dominant alleles more common than traits controlled by recessive alleles? Please explain
Answer:
depends on F1 and F2
Explanation
Dominant traits
Dominant trait is a characteristic that clearly expresses, overwhelms other traits of the same type in a heterozygous genetic combination; is shown mainly in the F1 generation.
Diving traits
Recessive trait is a trait that cannot be expressed because it is overwhelmed by other traits of the same type (with a pair of symmetrical alleles) in a heterozygous genetic combination; recessive has not been shown in F1, but only occurs in F2 generation.
who created the earth
Explanation:
Hey, there!
It's not obvious that who created the Earth.
Noone can say the answer of who created Earth because Earth wasn't created by any human or any specific creatures.. So, let me give some information about creation of Earth. Many hypothesis has been given by our great astronomers and philosophers. Here, i'm gonna describe some:
Old planetesimal hypothesis: According to this hypothesis there was a huge gaseous mass and comet collided together as a result, a very large amount of matter was thrown out of the sun, which later on cooled and planets are formed.Nebular hypothesis: According to this hypothesis the sun, the earth and other planets were formed by a large whirling cloud of hot gases and dust. When the cloud cooled and grew smaller, it began to spin faster. As the surface of the cloud cooled by radiation, a ring a matter was formed at the equatorial region of it.New plantesimal hypothesis: According to this hypothesis, the gaseous mass didn't collied with comet but they came closer to one another and due to gravity of comet, great tidal rose on gaseous mass. The materials rise up as a large spiral arms. Then the spiral arms were cooled down and broke away from the main mass. Then they were considered to be planets and main mass as the sun. It is modern of old plantesimal hypothesis. Tidal hypothesis: According to this hypothesis, it was also supposed that a comet passed through and had exerted a tidal pull upon a mass. The outer part of the filament escaped into space, inner part came back into the gaseous mass and middle part formed different sizes, which were planets and remaining were sun.Dust-cloud hypothesis: This hypothesis is different tgan above. It says tgat all planets were formed by large cloud of dust and gases. The light of stars pushed the atoms of gases and dust to form a large particals. These particals were attracted to eachother by gravity and began to crowd together. Eventually, a huge ball of materials formed the sun and the solar enegry was produced by nuclear reaction. Other particals remain near the sun and started revolving around it. The huge whirlpools originated in the rotating clouds which formed the smaller gaseous glodsand dust to form planets.This is how the earth was originated or created according to different hypothesis. so, there is no any single people or things that created the earth.
[tex]hope \: it \: helps...[/tex]
Drag the tiles to the correct boxes to complete the pairs.
Match the types of societies to their characteristics.
dependent on wild plants and animals for their sustenance
dependent on agriculture for its livelihood
dependent on manufacturing sector for income
1)agrarian society
2)modern society
3)hunter-gatherer society
See photo,
Explanation:
Column A
Column B
1.
a
А
a. Single
Benth
b. People
2. 3.
Carn
C. Before
4.
Dem
d. Idea
5.
Ecto
e. Meat
BG
Fore
f. Sex Cell
7
Gam
g. Deep
8
Haplo
h. Nucleus
9.
Ideo
Without
10.
Karyo
je Outside
Answer:
Explanation. colom a
Compare and contrast the functions of each of the following types of flasks: filter, Erlenmeyer, volumetric. (Site 1)
Answer:
Explanation:
1. A filter flask is made up of heavy, transparent glass and suction pump at one side. This kind of flask is used for filtering or distillation of substances and is not the best option for measuring as it is not accurate.
2. An Erlenmeyer flask is a conical flask that is best suitable for titration and for storing chemicals.
3. Volumetric flasks are the best kinds for preparing accurate volumes. They are used for making accurate measurements of solutions.
Answer:
See Below
Explanation:
The filter flask is an Erlenmeyer flask with a side-arm adapter. This arm allows a scientist to remove unwanted impurities from solids, liquids, or gases in a chemistry experiment. Ultimately, it allows the fluid, or filtrate, to pass through, but stops the solid particles in the process. The Erlenmeyer flask is designed with a flat bottom so it can be used to either boil a liquid or allow a liquid to form condensation. This flask allows a laboratory technician to stir or heat a solution without losing any liquid by placing a stopper in the neck. Lastly, volumetric flasks are used for creating solutions. With their long, narrow neck and flat-bottom, these flasks have a number of advantages and disadvantages. Their specific set of measurements provides a scientist great accuracy. A scientist can use this flask to create solutions, when a solute is mixed with a solvent. It can also be used for dilutions, when a liquid is made thinner by adding water or another solvent. However, because the neck of the flask is so narrow, it can be difficult to pour the measured liquid out of the flask if the scientist over-poured the measurement.
How is osmosis utilized to
create a state of equilibrium
inside of a cell's selectively
permeable membrane?
A. Osmosis allows large molecules to
move from an area of a high concentration
to a low concentration.
B. Osmosis allows DNA to remove solutes
from a higher concentration of solutes to
low concentrations.
C. Osmosis allows water to pass through
the membrane to dilute the high
concentration of solutes.
Answer:
A. Osmosis allows large molecules to move from an area of a high concentration to a low concentration.
Explanation:
Answer:
I think the answer is B. Not to sure but, hope this helps!!!!
I have the same thing rn on Acellus. LOL
Do you think the cellular organisation is same for all the kingdoms