Answer:
Compressions and Rarefactions
A vibrating tuning fork is capable of creating such a longitudinal wave. As the tines of the fork vibrate back and forth, they push on neighboring air particles. The forward motion of a tine pushes air molecules horizontally to the right and the backward retraction of the tine creates a low-pressure area allowing the air particles to move back to the left.
Explanation:
These regions are known as compressions and rarefactions respectively. The compressions are regions of high air presure while the rarefactions are regions of low air pressure.
Sound waves can also be shown in a standard x vs y graph, as shown here. This allows us to visualise and work with waves from a mathematical point of view. The resulting curves are known as the "waveform" (i.e. the form of the wave.) The wave shown here represents a constant tone at a set frequency.
A current-carrying wire is positioned vertically. The current in the wire is moving upward. If you move a compass slowly around the wire, how would the direction of the compass needle change?
A.
The compass always points in the same direction.
B.
The compass needle would rotate clockwise.
C.
The compass needle would rotate counterclockwise.
D.
The compass needle would spin erratically.
A boxer usually practices with a dead weight. He increases his strength and trains himself using the dead weight to fight in the real matches. The fighting practice by the boxer is like working of vaccine. Why?
What is a renewable resource?
A. A resource that can be used up, but will take hundreds of millions of years
B. A resource that cannot ever be used up
C. A resource that is hard to generate
D. A resource that is easy to generate
The picture illustrates three cross sections of rock layers from three different areas.
1
2
3
U
w
Y
X XT
PANEN
za
-
00
0
OO
0001
Answer:
hii can u PLZ put up the picture so that I can help u with this.Have a great day or night
Cell structure and function
History of cell biology
I’ll give brainlist to the right answers
Please help for 25 points and brainliest. NO LINKS. In order for meiosis to create four, genetically different gametes, DNA replication must occur. Which of these best describes when DNA replication would occur during meiosis?
a. Prior to metaphase of meiosis I
b. Prophase I in meiosis I
c. Prior to meiosis I and meiosis II
d. Prior to meiosis II
DNA replication occurs prior to meiosis I and meiosis II.
During meiosis, DNA replication occurs during interphase before the start of meiosis I. This replication process is necessary to ensure that each of the four daughter cells produced during meiosis has a complete set of genetic information.
After DNA replication, the cell undergoes meiosis I, which results in the separation of homologous chromosomes into two daughter cells. Then, meiosis II occurs, which separates sister chromatids into four genetically different gametes.
So, the correct answer is c. Prior to meiosis I and meiosis II.
What is DNA replication?DNA replication is the process by which a cell makes a copy of its DNA.
DNA replication is a vital process that occurs before cell division in both prokaryotic and eukaryotic cells.
To learn more about DNA replication at:
https://brainly.com/question/16464230
#SPJ3
Which of the following is an example of chemical reaction
Answer:
A chemical reaction happens when one or more chemicals are changed into one or more other chemicals. Examples: iron and oxygen combining to make rust. vinegar and baking soda combining to make sodium acetate, carbon dioxide and water.
Explanation:
Hope this helps
Which of the following kingdoms are NOT heterotrophs?
O plants
O fungi
O animals
O all of the kingdoms are made of heterotrophs
Can someone help me answer this question please
Answer:
first one is A and the second one is D
Explanation:
I need help, thx lads
i did'nt understod ur question
Which force is a contact force?
Answer:
B)A magnet pulling
hope it helps.
Match the following communication systems with their descriptions:
Please help!! I need the answer ASAP
Answer:
I think it's
7 - c
8 - a
9 - b
If this isn't correct please let me know so I can change it I am just trying to get you an answer.
For both groups of plants, what BEST describes the relationship between light intensity and rate of photosynthesis?
A. The rate of photosynthesis increases with light intensity, and might be limited by other factors such as water and temperature.
B. The rate of photosynthesis increases with light intensity, and it increases without limit.
C. The rate of photosynthesis is independent of light intensity, but may be limited by other factors such as water and temperature.
D. The rate of photosynthesis is at a maximum over a narrow range of light intensities.
Answer:
a
Explanation:
the rate of photosynthesis increases with light intensity
uhhhh i need help. thank you:)
Answer:
the answer is.... c.........
1: Describe the Early Ideas about Natural Selection
2: Who was Charles Darwin and what was his contribution to science?
Don't copy from the internet, If you do, Summarize it into an answer no longer than 2-3 sentences and make it your own words
BIG BRAIN ANSWER:
Before Darwin, a naturalist named Jean-Babtiste Lamarck believed that the environment altered the shape of individuals and that these acquired changes were then inherited. Meanwhile, Charles Darwin was a naturalist on a ship called the HMS Beagle, and he discovered that the beak shape varies among finch species in the Galapagos Islands. He found that the beak of an ancestral species of finch had somehow been transported to these islands, and adapted over time to acquire different food sources that were available, causing variation, and that nature just selected for the most suitable beak shape and against less useful ones.
Where could humans be placed in the energy pyramid ?
Answer:
the top of the pyramid because they are the predators of some animals
Explanation:
A man really wants to have a baby with type AB blood so he can brag to his friends that his kid is rare. What are his chances for a baby to get type AB blood if the mom has type O blood?
Answer:
0%
Explanation:
Darwin collected 13 different types of finches. All were the same expect for ___________ _______________________________________.
A. size and shape of their beaks.
B. color and texture of their beaks
C. age and size of the males
D. length and mass of their feathers
Answer:
Hey mate.....
Explanation:
This is ur answer.....
A. size and shape of their beaks.....Hope it helps!
Brainliest pls....
Follow me! ;)
a que se debe el origen de la variación entre los individuos de una especie
a. El medio ambiente
b. La selección natural
c. la reproducción sexual
d. un agente ignorado
HELP PLSSSS THIS NEEDS TO BE TURNED IN FAST!
Answer:
a) Let "P" be the allele for purple lip color and "p" be the allele for green lip color
Genotypes:
Zit = PP
Zilla= Pp
b) Parental genotypes: PP x Pp
Punnet Square:
PP,PP, Pp, Pp
c) Offspring genotypes: 1 PP : 1 Pp
Offspring phenotypes : all purple
d) 100 % purple lips
e) 0% green lips
Answer: imagine using my questions for points, lol.
Explanation:
In tomatoes, tall vine (T) is dominant to dwarf vine (t), and red fruit (R) is dominant to yellow fruit (r).
A gardener crosses a dihybrid tall tomato plant bearing red fruit with a true-breeding dwarf tomato plant with yellow fruit.
1. Describe the possible phenotypes and genotypes of the plants. Responses should include expected phenotype ratios. Explain your reasoning as needed.
2. If 100 of these tomato plant offspring were planted, how many plants would you predict you would find of each phenotype.
Please help
Answer:
Possible genotypes: TtRr, Ttrr, ttRr, ttrr
Possible phenotypes: Tall with red fruit, tall with yellow fruit, dwarf with red fruit, darf with yellow fruit
Number of plants with the phenotype:
Tall with red fruit - 25 plants
Tall with yellow fruit - 25 plants
Dwarf with red fruit - 25 plants
Darf with yellow fruit - 25 plants
Explanation:
To find the genotypes create a punnett square like the one in the image
To find the phenotypes examine the genotypes and detemine if they carry a dominant allele for the trait, if they have at least one dominant allele then the dominant trait that will be expressed, if they have two recessive alleles then the recessive trait will be expressed
To find how many plants that will have a phenotype if 100 plants were planted divide the number squares that have a particular phenotype from the punnett squares and divide that number by the number of total squares. Then multiply by 100
4÷16×100 = 25
Fleas bite the skin of dogs, suck their
blood, and cause them to itch. The fleas,
in turn, get food and a warm home. This is
an example of
Answer:
parasitism
Explanation:
which type of consumer eats only producers
Answer:
herbivores
Explanation:
Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else.
Compare and Contrast Renewable and Nonrenewable Resources.
Answer:
Nonrenewable energy options are small in supply. Renewable materials replenish themselves spontaneously and in a very brief amount of time.
Explanation:
PLS HELPPPPPPP DUE TODAY!!!!!!
Need help I will give you 20 points plsss
Answer:
III3 will be "pp" lower case p
II2 will be Pp
Explanation:
As we know the trait is caused by dominant alleles. III3 is not affected so she will have two recessice alleles so 2 lower case p.
III2 is affected so the person will have one dominant allele P and one recessive. The dominant is from the father and the recessive is from the mother.
Hope that helps
Answer:
1. pp 2. Pp
Explanation:
1. Since it says the genetic disorder is caused by a dominant allele, that means that the ones affected (colored in) would have one "P" allele. Those not affected (not colored in) would display the genotype "pp." That would mean that generation III-3's genotype would be "pp."
2. The genotype of III-2 is "Pp." The dad was not affected (meaning he has 2 recessive alleles, pp) and the mom was affected (meaning she has at least 1 dominant allele, p; her genotype would either be PP or Pp). Because of this, III-2 would have to get one allele from the dad and one allele from the mom, therefore... their genotype would be: Pp.
How much has the sea level risen between 1901 and 2010? a 7.5 feet b 7.5 inches c 12.6 inches d 2.5 feet
Answer:
From 1901 to 2010, global sea levels rose an estimated 187 millimeters (mm; 7.4 inches), averaging a 1.7 mm rise annually; estimates are that from 1992 to 2010, the rate increased to 3.2 mm annually.
Explain why ozone in the lower atmosphere is a bad thing but why ozone in the upper atmosphere is a good thing.
Answer:
Ozone in the lower atmosphere (troposphere) is a bad thing because it can make health problems occur (problems like hard breathing and asthma) and environmental, while ozone in the upper atmosphere (stratosphere) is a good thing because it protects living things from ultraviolet light from the sun.
Explanation:
Ozone in the lower atmosphere is not emitted directly into the air, and it is created via man-made products (factories, cars, chemical solvents, etc.). When ozone in the lower atmosphere is created, it does not go into the upper atmosphere. Since ozone in the upper atmosphere is above a lot of living things (depending on where the living thing is), it does not cause as many bad effects as ozone in the lower atmosphere, which makes it good.
Which is false regarding cell signaling? A. Endocrine signals move via the bloodstream B. Para crime signals are long-lasting C. Para crime signals are used to communicate the nearby cells D. Auto signals bind to receptors on the same cell that released the ligand
Answer:
B. Para crime signals are long-lasting.
The option that's false regarding cell signaling is B. Para crime signals are long-lasting.
Cell signaling is also known as cell communication. It simply means the ability of cells to be able to receive, process, and then transmit signals with itself and the environment.
Cell signaling is vital for some cellular decisions such as cell growth, division, development, etc. During cell signaling, the endocrine signals move via the bloodstream. Also, auto signals bind to receptors on the same cell that released the ligand. It should also be noted that para crime signals aren't long-lasting, they occur for a short period.
In conclusion, the correct option is B.
Read related link on:
https://brainly.com/question/14145782
Which process could cause a metamorphic rock to return to the surface of Earth to be worn down again? Please explain.
A. deposition
B. plate movement
C. chemical changes