Answer: The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
Answer:
The Richter scale measures the largest wiggle (amplitude) on the recording, but other magnitude scales measure different parts of the earthquake. The USGS currently reports earthquake magnitudes using the Moment Magnitude scale, though many other magnitudes are calculated for research and comparison purposes.
Explanation:
What is speciation? What are the causes of speciation? How does isolation lead to speciation?NO LINKS PLEASE
The biological species concept tells us that organisms belong to the same species if they can breed to produce fertile and viable offspring. Speciation is therefore the development of reproductive isolation between individuals of an original population.
This can occur in 2 different ways:
1. Allopatric speciation. This is when speciation occurs due to some sort of geographic barrier separates a population into 2 groups. These two groups can then undergo genetic divergence, where each group grows increasingly dissimilar genetically due to random mutations and natural selection acting separately in each group, or from processes such as genetic drift. It is important to recognize that the lack of gene flow between these two groups contributes to the genetic divergence of the groups. Genetic divergence can lead to prezygotic and post-zygotic barriers which prevent production of fertile/viable offspring between the 2 groups. Each of these populations now represents a new species, whose gene pools are completely separate from one another.
2. Sympatric speciation. This is when speciation occurs without the presence of any sort of physical/geographical barriers. Truthfully, this is a much less common occurence. However, it is thought that sympatric speciation can occur as a result of strong divergent selection. Sympatric speciation may also occur as a result of a polyploid individual being introduced into a diploid population.
Isolation leads to speciation by preventing gene flow between 2 groups of an original population, allowing genetic differences between the groups to accumulate over time (via natural selection, genetic drift, etc.). Over time, the accumulation of these genetic differences may result in reproductive isolation between the 2 groups, causing these two groups to be committed to separate evolutionary paths.
Answer: So, how might speciation happen?
Explanation:
Speciation describes a situation where a population in a species becomes so different that it can no longer successfully interbreed with other populations of the ‘same’ species.
Q.3. Describe the structure of the internal and middle ear.
Answer:
The inner ear has two openings into the middle ear, both covered by membranes
Explanation:
The oval window lies between the middle ear and the vestibule, whilst the round window separates the middle ear from the scala tympani (part of the cochlear duct)
❈ The internal ear —
➥ The inner ear (also called the labyrinth) contains 2 main structures — the cochlea, which is involved in hearing, and the vestibular system (consisting of the 3 semicircular canals, saccule and utricle), which is responsible for maintaining balance.
➥ The cochlea is filled with fluid and contains the organ of Corti — a structure that contains thousands of specialised sensory hair cells with projections called cilia. The vibrations transmitted from the middle ear cause tiny waves to form in the inner ear fluid, which make the cilia vibrate.
➥ The hair cells then convert these vibrations into nerve impulses, or signals, which are sent via the auditory nerve to the brain, where they are interpreted as sound. The round window (fenestra cochlea) is a membrane that connects the cochlea with the middle ear. It helps dampen the vibrations in the cochlea.
➥ The semicircular canals also contain fluid and hair cells, but these hair cells are responsible for detecting movement rather than sound. When you move your head, the fluid within the semicircular canals (which sit at right angles to each other) also moves. This fluid motion is detected by the hair cells, which then send nerve impulses about the position of your head and body to the brain to allow you to maintain your balance.
➥ The utricle and saccule work in a similar way to the semicircular canals, allowing you to sense your body’s position relative to gravity and make postural adjustments as required.
❈ The middle ear —
➥ The middle ear is an air-filled space that contains 3 tiny bones (known as ossicles), called the malleus (hammer), incus and stapes (stirrup). Sound waves that reach the tympanic membrane cause it to vibrate.
➥ This vibration is then transmitted to the ossicles, which amplify the sound and pass on the vibration to the oval window (a thin membrane between the middle and inner ear). The Eustachian tube is a narrow tube that connects your middle ear to the back of your nose and throat (known as the nasopharynx). Its function is to allow air into the middle ear as well as drain mucus from the middle ear into the nasopharynx.
➥ When you swallow, your Eustachian tube opens up to allow air into the middle ear, so that the air pressure on either side of the tympanic membrane is the same. In situations when there is a sudden change in air pressure (e.g. during take-off and landing when travelling on a plane), the pressure in the middle ear is not the same as the outside air pressure.
➥ This can make your eardrum bulge or retract and less able to transmit vibrations, causing temporary hearing problems. By swallowing or ‘popping’ your ears, you can equalise the pressure.
Which statement best describes the composition of genetic material?
A. Genes and chromosomes are made of DNA
B. Genes and chromosomes are made of RNA
C. Genes are composed of DNA; chromosomes are composed of RNA
D. Genes are composed of RNA; chromosomes are composed of DNA
71/6 is the answer tho. Or 11.8333... or 11 and 5/6 (I said this first!!)
Btw, the answer is B
Brainliest?? ;D
What is the size of Human heart?
Answer:
A human heart is roughly the size of a large fist.
Explanation:
but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.
Where do hurricanes most always start?
a) over tropical oceans
b) over tropical land
c) over attic oceans
Ok, so, yes, I did tell my husband about the baby, but he thinks that it’s not his? He is planning on leaving yikes....?
Take a dna test... he will be more confident about it then
ACE OR EXPERT HELP PLS: Words are very similar to genes in that they use bases instead of letters to create genetic expression. If a mutation in letters makes a new word meaning, what would a mutation in bases create?
Answer:
A mutation could create a difference in the sequence of the codons which could potentially create a different outcome in amino acids. Letters create words and bases create codes for amino acids. If a letter changes in a word than the meaning of the word may change, correspondingly if a base changes ( or a mutation occurs ) in a nucleotide the outcome of the amino acid may change.
Explanation:
not good with bio pls help !
Answer:
They adapted with new traits to survive to new environments.
Explanation:
survival of the fittest
please help me with my biology!!!
Answer:
1. logistic population growth
2. K = 72
3. I think weeks 2 and weeks 4 through 10
4. 2.78%
5. 12
Select the correct answer.
Which item is made from a synthetic material?
a. cotton pants
b. leather jacket
c. frying pan
d. wicker basket
Answer:
B is the wrong answer the other guy is wrong
Explanation:
i did the test just now and it was wrong
What do all biological polymers have in common? .
(0.5 Points)
They are made of repeating monomers
They are large molecules
They have a carbon backbone
All of the above
Explanation:
As I think all of the above is the correct one
Why does water have a high surface tension? (2 points) Group of answer choices The lengths of the bonds in water molecules can change. Water molecules contain 18 electrons. Hydrogen bonding keeps water molecules close together. Water is a liquid at room temperature.
Answer:
Water's high surface tension is due to the hydrogen bonding in water molecules. Water also has an exceptionally high heat of vaporization. ... Water's heat of vaporization is 41 kJ/mol. Vapor pressure is inversely related to intermolecular forces, so those with stronger intermolecular forces have a lower vapor pressure.If a flower shows incomplete dominance, and the parent plants are red and white, what color will the heterozygotes be?
Answer:
Pink. Incomplete dominance is a blending of phenotypes.
Deep ocean technology has allowed scientists to discover and study organisms living near deep-sea vents. Unlike surface organisms, these organisms survive on a food web based on chemosynthesis instead of photosynthesis. Deep-sea vent organisms live in complete darkness under extreme pressure. What are deep-sea vent organisms evidence of?
Answer:
Evolution.
Explanation:
The deep-sea vent organisms are the evidence of evolution because these organisms evolve with the passage of time and able to survive the extreme environmental condition of the deep sea vent. Evolution is the change in the characteristics of a species with the passage of several generations and relies on the process of natural selection. This evolution helps the organisms to adopt the surrounding environment and able them to survive in it.
Answer:
These organisms depend on sulphur coming form the vents.
Explanation:
A hydrothermal vent is a fissure on the seafloor and is geothermally heated by the hot magma from below. They exist due to the tectonic activity of the earth. These hydrothermal vents are found along the mid-oceanic ridges They are located where the new crust is formed. Most of the deep-sea creature tends to thrive in these vents. These creatures have adapted to the high temperature and pressure changes and mainly adapted through symbiosis. They make use of sulphur gas coming from these vents to sustain themselves.HELP DUE IN 10 MINS!
What type of mutation is shown?
inversion
translocation
deletion
duplication
This is an inversion.
The section of chromosome has been reversed end to end.
Answer:
I think its B. translocation
Help me with this and I shall mark you the brainiest!!
Answer:
Mitosis and meiosis both involve duplication of a cell's dna content
what is a complex sugar
Answer:
Complex Carbohydrates: Also know as polysaccharides (poly = many), these carbohydrates have more than two units of glucose (sugar) linked together. Polysaccharides are generally not sweet and are not water soluble. Starches and dietary fiber are complex carbohydrates.
Complex carbs pack in more nutrients than simple carbs. They're higher in fiber and digest more slowly. This also makes them more filling, which means they're a good option for weight control. They're also ideal for people with type 2 diabetes because they help manage blood sugar spikes after meals.
Simple carbs — also known as simple sugars — contain one or two sugar molecules, whereas complex carbs have three or more. A simple sugar may be a mono- or disaccharide.
What codes for RNA
plz help
Answer: DNA
Explanation:
Cuál es la relación entre instinto Y aprendizaje
Give five example molecules
These are the five examples for the molecules with the clear definition.
Gregor Mendel studied the inheritance pattern of several characteristics in pea plants. He observed that tall (T) plants were dominant to short (t) plants. If a heterozygous tall plant is crossed with a short plant, what percentage of the offspring will be short?
Answer:
Below
Explanation:
I used a punnett square to figure this out!
If you were to cross a heterozygous tall plant (Tt) with a short plant (tt), the possible resulting genotypes of the offspring would be:
50% chance of the offspring being heterozygous dominant (Tt)
50% chance of the offspring being short (tt)
Hope this helps!
Which statement best explains how tectonic activity affects long-term climate change?
Volcanic eruptions change Earth’s tilt, which is responsible for the seasons.
The movement of continents changes wind patterns and ocean currents.
The change in Earth’s elliptical orbit around the Sun causes climate change.
The increase of sunspots increases Earth’s temperature.
Answer: The movement of continents changes wind patterns and ocean currents.
hope this helps!
Explanation:
The best statement that describe the effect of tectonic activity on climate change is that the movement of continents changes wind patterns and ocean currents.
What are tectonic activities?Tectonic activities includes volcanoes, mountain building, earthquakes and many more.
Tectonic activities are common in plate boundaries where plates converge, diverge or transform.
As a result of the movement of these continental plate, tectonic activities occurs causing earth climate change
Therefore, the movement of this oceanic or continental plates changes the wind pattern and ocean current.
learn more on tectonic activity here: https://brainly.com/question/12907968
When was the strongest El Niño event in history?
Answer:
1997
The 1997–98 El Niño event was regarded as one of the strongest El Niño events in recorded history, which resulted in widespread drought, flooding and other natural disasters occurring across the globe.
Explanation:
Answer:
the answer to the question is 1997-98
Examine the data below. Determine the number of extinct species in each bird group. Then use that data
to calculate the percentage of that bird group that has gone extinct.
Species Known
Current Species
Number Extinct
Bird Group
Seabirds
Percentage Extinct
22
22
Waterfowl
11
3
Honeyeaters
6
2
Honeycreepers
45
20
Rails
11
2
Ibises
2
0
Flycatchers
1
1
Thrushes
6
3
Stilts
1
1
Iiro this info
ntion for
the bi
Number of Fytinot
What is the process by which genetic material is copied?
DNA fusion
RNA reproduction
DNA replication
RNA fission
Explain how genetic mutations may result in genetic and physical variations (differences) within a population
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.
What are 3 differences between Mercury and
Mars?
Answer: At about three thousand miles in diameter, Mercury is the smallest planet in the solar system. But its core is massive — it accounts for more than three-quarters of the little planet's diameter, and more than half its mass. ... So even though Mars is bigger than Mercury, it's less dense — a rocky planet with a difference.
Explanation:
Cheetahs and lions live in the same regions and eat the same food sources, such as gazelles and small wildebeests. Because of this, when food is limited, they often have to fight to survive.
is this mutualism, parasitism, or commensalism?
None of these answers seem to fit because the relationship between the cheetahs and lions is a competitive relationship, while mutualism, parasitism, and commensalism are all symbiotic relationships.
Cheetahs and lions live in the same regions and eat the same food, thereby it can be described as an interspecific-competition relationship.
What is competition?Competition is an ecological relationship where two species are confronted with limited resources (e.g. food)
Mutualism is an ecological relationship where both species are benefited from their interactions.Parasitism is an ecological relationship where one species is benefited whereas the other is harmed from such interactions.In conclusion, cheetahs and lions live in the same regions and eat the same food sources, thereby it can be described as an interspecific-competition relationship.
Learn more in:
https://brainly.com/question/7413811
Can humans ever directly see a photon?
Answer:
Yes humans can directly see a photon.
Explanation:
In fact, photons are the only things that humans can directly see. A photon is a bit of light. Human eyes are specifically designed to detect light.
This happens when a photon enters the eye and is absorbed by one of the rod or cone cells that cover the retina on the inner back surface of the eye.
For Example
When you look at a chair, you are not actually seeing a chair. You are seeing a bunch of photons that have reflected off of the chair.Thus, Yes humans can directly see a photon.
-TheUnknownScientist
Which type of selection would be caused by this bird species ?
Answer:
Directional Selection
Explanation: