Answer:
20
Explanation:
PLEASE HELP PLEASE!!!!!
why is it difficult for scientists to study the mechanism of evolution
Answer:
Because evolution is not a simple process and it is hard to accurately determine how a species evolved or what the species evolved from.
what type of symbiotic relationship is between the anémone and the clow fish?
A.Commensalism
B.Paratism
C.Predation
D.Mutualism
The answer is D. Mutualism
The most important minerals needed by plants are _____
compound A. Protein B. Nitrogen
Answer: Nitrogen
Explanation:
When fruits or vegetables are left exposed to the air after they have been boiled, they don't turn brown. How can you explain this?
Answer:
I guess cuz u didn't use direct heat with fire, just hot water
Explanation:
HELP!!!!
Blood type AB evidence is considered-
A) Individual
B) Class
C) Circumstantial
D) Direct
Answer:
hey u blocked me pliz unblock me yer
Explanation:
Answer:
A
Explanation:
im not 100% sure
True or false a proton is a negatively charged particle that resides in the nucleus of an atom and has a mass of 1 and a charge of -1
Answer:
False
Explanation:
Protons have a positive charge
Which of the following represents the structure of messenger RNA?
Answer:
First option
Explanation:
AUGC are the bases of RNA.
In alveoli, tiny air sacs in the lungs, oxygen is absorbed and then transported through the body. The interaction in this example indicates the interdependence of which system?
A skeletal and muscular
B circulatory and digestive
C muscular and respiratory
D respiratory and circulatory
function of nervous tissue
Explain how might studying alleles help scientists learn about genetic diseases.
Answer:
they can study these preserved genes and compare the genomes of different species to find similarities and differences that improve their understanding of how human genes function and are controlled. this helps researchers develop new strategies to treat and prevent human disease.
Explanation:
What temperature system is used by most of the world
Answer:
The temp system used by most of the world is Celcius
Answer:
The metric system, including Celsius, is the official system of measurement for almost all countries in the world. Most scientific fields measure temperature using the Celsius scale. Zero degrees Celsius is the freezing point of water, and 100 degrees Celsius is the boiling point of water.
Explanation:
Without the presence of oxygen, cells can still produce large amounts of
Answer:
co2 and energy
through anaerobic respiration
An unknown bacterium has been inoculated onto a Mannitol Salt Agar plate and incubated at 37 degrees C. After 48 hours, you observe the plate. What interpretations and conclusions can be made from this result
Explanation:
Halotolerant is the ability of the organism to grow at the higher concentration of salt than the required concentration for its growth.
As we know Mannitol salt is used as selective medium for isolation of pathogenic bacteria. The medium has mannitol salt, phenol red indicator, 7.5% sodium chloride. This high salt concentration inhibits the growth of most bacteria.
The interpretations and the conclusion regarding to the given situation should be explained below.
What is Halotolerant?It is the capability of the organism for growing at a higher concentration of salt as compared to the concentration with respect to the growth. Since Mannitol salt should be applied as the selective medium for isolation of pathogenic bacteria. The medium contained the mannitol salt, phenol red indicator, 7.5% sodium chloride.
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What the consequences would be if the entire water surface was covered with water lilies
Answer: There can be a ton of damage done if water lilies overgrow.
Explanation:
Water lilies protect the organisms under the body of water and provide shade to the plants and organisms underneath. These are very important for organisms, as they also provide a place to rest. But if the entire water surface were to be covered with water lilies, this would be a major problem, because sunlight would have no way of reaching below the surface, and this would decrease oxygen levels for plants and organisms. Without air and sunlight, plants will start to die and organisms of the body of water will also start to die because of no air to breathe. Also, overgrowth of water lilies causes water stagnation and leads to excessive algae blooms. The stagnant water attracts insects like mosquitoes, cockroaches, termites, and more pests which can harm plants and organisms.
Where do substrates bind on an enzyme?
active site
surface receptor
voltage-gated
channels
calcium channels
The unit of measurement for forces is called
Answer:
I am pretty sure its called a Newton=unit of force
Urgent!! Please help! :((
Answer:
The table shows that sound waves travel more quickly through water than through air.
Explanation:
Signals from nearby cells on how to differentiate are examples of an:
internal cue
external cue
Answer:
External Cue..........
Answer:
I just want points
Explanation:
PLEASE HELP ASAP!!!!!
Disruptive selection favors which phenotypic traits?
1. sexual
2. directional
3. extreme
4. intermediate
Answer:
3. extreme
Explanation:
PLEASE HELP DUE IS 2 MINUTES...
Describe what happens when cells divide uncontrollably?
Question 4
1 pts
How would a scientist describe the illustrations showing the bones of a whale flipper
and a batwing?
O Analogous structures because they are similar but different functions,
O Embryonic structures because they show up before the species matures,
Homologous structures because the structures are similar but have different
functions.
Answer:Homologous structures because the structures are similar but have different
functions.
Explanation:If you look at a bat wing and a whale's flipper you can find similarities
Which of the following is not an example of how renewable biofuels could replace nonrenewable resources?
A)
Wood chips could replace methane.
B)
Sugarcane and corn products could be used to burn instead of coal.
C)
Palm oil from renewable trees could replace nonrenewable biodiesel.
D)
Residues from animals such as manure could replace the use of methane.
E)
Residues from agricultural sources could be used as fuel.
Answer:
I believe the answer would be:
E) Residues from agricultural sources could be used as fuel.
Let me know if I'm wrong or right since I'm not too sure.
Answer:
E.) edg 2021
Explanation:
Herbivores, carnivores, and omnivores are all known as what types of
organisms? *
A. predators
B.scavengers
C.producers
D.heterotrophs
What is the importance of living systems?
what are the two phases of the respiratory movement of man? Are they the same in a grasshopper or a fish?
The two phases of the respiratory movement of man is inspiration ( or inhalation) and expiration (or exhalation). The phases of the respiratory movement of men is the same in fish because they also inhale and exhale.
What is inspiration (inhalation ) ?
Inspiration (inhalation) is the process of taking air into the lungs. It is the active phase of ventilation because it is the result of muscle contraction.
What is expiration (exhalation)?
Expiration (exhalation) is the process of letting air out of the lungs during the breathing cycle.
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At which time of year would mitosis in a plant occur most frequently? Explain why?
Answer:
it would be based on the most common prophase time of year is.
Explanation:
I don't know to be honest.
In plants, mitosis occurs most frequently during the periods of growth such as the during the periods of inactivity such as during germination and springtime bud formation.
What is Mitosis?Mitosis is the cell division which occurs in all the somatic cells in the plant body as well as in the animal cell. Mitosis results into the formation of diploid cells.
Mitosis occurs most rapidly in the meristematic tissues of the plants. These are the zones of growth in plants.
In plants, mitosis occurs most frequently during the periods of growth, for example when they come out of the periods of inactivity, such as during seed germination and spring time bud formation.
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The English moth, Biston betularia, is often cited as an example of observed evolution. There are two colors of this moth, light and
dark (typica and carbonaria). Kettlewell found that dark moths constituted less than 2% of the population prior to 1848. Then, the
frequency of the dark coloration began to increase. By 1898, the 95% of the moths in Manchester and other highly industrialized
areas were of the dark color. Using the moth example, analyze the events in order to identify support for the statement: natural
selection changes populations, not individuals. Choose ALL that apply.
A)
Variation in the population existed.
B)
Color variation is a result of different gene combinations.
C)
In response to environmental change, moth coloration changed from light
to dark.
D)
Due to natural selection, the ratio of different genetic combinations is
changing
E)
Predator pressure resulted in the light colored genotype being removed
from the gene pool.
Answer:
A,B,C,F
Explanation:
A, B, C and D all of these statements support the idea that natural selection changes populations, not individuals.
What is natural selection?Natural selection is a process by which organisms that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. This leads to changes in the genetic makeup of a population over time, as advantageous traits become more common and less advantageous traits become less common.
Natural selection is driven by environmental pressures, such as predators, competition for resources, or changes in climate. It is a key mechanism of evolution, and helps to explain the diversity of life on Earth and the ways in which different species have adapted to their environments.
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Choose each correct statement below.
a. The gastrodermis contains various cell types and develops from the endoderm during development.
b. The gastrodermis is associated with movement of cnidarians.
c. The epidermis contains various cell types and develops from the endoderm during development.
d. The epidermis is associated with sensing the environment and prey capture.
Answer:
a. The gastrodermis contains various cell types and develops from the endoderm during development.
d. The epidermis is associated with sensing the environment and prey capture.
Explanation:
Most cnidarians have two layers of cells organized into some luck of tissues that have specific functions.
Cnidarians' body organization is simple: It is a hollow structure composed of two cellular layers: epidermis, which is the external layer, and gastrodermis that is the internal layer, formed by lining cells in the gastrovascular cavity. Between these two layers, place the mesoglea that varies from a thin non-cellular membrane to a mucous, fibrous, thick membrane with amebocytes.
Epidermis and gastrodermis originate from two embryonic tissues, the ectoderm, and the endoderm, respectively.
The epidermis has five types of cells with different functions: epitheliomuscular, interstitial, cnidoblasts, secretors, and sensorial.
Gastrodermis is composed of cells such as nutritive cells, glandular enzymatic cells, secretory cells, and sensory cells.
si en un instituto se bachilleran 130 estudiantes. si en el día de la graduación lo ordenaron en sucesión aritmética con 20 en la primera fila y 32 en la última, cuantas filas se formaron?
Answer:
Se forman 5 filas.
Explicación:
Se forman 5 filas si se ordenaron 130 estudiantes el día de la graduación en sucesión aritmética con 20 en la primera fila y 32 en la última porque se agregan 3 estudiantes en cada fila después de la primera fila. La primera fila tiene 20 estudiantes, la segunda fila tiene 23 estudiantes, la tercera fila tiene 26 estudiantes, la cuarta fila tiene 29 estudiantes y la quinta o última fila tiene 32 estudiantes.
What does polar ice do to much of the incoming sunlight?
Answer:
Arctic sea ice keeps the polar regions cool and helps moderate global climate. Sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. As sea ice melts in the summer, it exposes the dark ocean surface.
Explanation: