Answer:
Natural selection, the most dominant evolutionary force, is a main mechanism that is responsible for the diversity of species on Earth today. Yet, it is through evolution that we also understand the unity of all life.
Explanation:
mark me brainliest
what is the role of microtubules in mitosis? select all that apply. what is the role of microtubules in mitosis?select all that apply. microtubules condense the chromosomes. microtubules replicate the chromosomes. microtubules bind to individual chromosomes. microtubules form the mitotic spindle. microtubules shorten, dividing the chromosomes.
The role of microtubules in mitosis is:
- microtubules form the mitotic spindle.
- microtubules bind to individual chromosomes.
Explanation to the above given short answers are written below,
- Microtubules form the mitotic spindle: During mitosis, microtubules organize and form a structure called the mitotic spindle.
The mitotic spindle plays a crucial role in separating the duplicated chromosomes into two daughter cells during cell division.
- Microtubules bind to individual chromosomes: Microtubules attach to specific regions on the chromosomes called kinetochores.
These kinetochore microtubules exert tension on the chromosomes and are responsible for moving the chromosomes towards the poles of the cell during mitosis.
The other options provided do not accurately describe the role of microtubules in mitosis:
- Microtubules do not condense the chromosomes. Chromosome condensation is mainly mediated by proteins called condensins.
- Microtubules do not replicate the chromosomes. Chromosome replication occurs during the S phase of the cell cycle.
- Microtubules do not shorten and divide the chromosomes. Microtubules exert forces on the chromosomes to separate them, but they do not directly divide the chromosomes.
To know more about "Microtubules" refer here:
https://brainly.com/question/32228632#
#SPJ11
The real length of one villus is 0.8 mm
Calculate the image length if the villus is viewed at a magnification of x20
magnification = size of image / size of real object
Answer:
Explanation:
Re arrange formula=Size of image=Magnification*size of real image
0.8mm*20=16mm
The image length will be "16 mm". A further explanation is below.
Given:
Magnification,
20Size of real image,
0.8 mmAs we know the formula,
→ [tex]Magnification = \frac{Size \ of \ image}{Size \ of \ real \ image}[/tex]
or,
→ [tex]Size \ of \ image=Magnification\times Size \ of \ real\ image[/tex]
By substituting the values, we get
→ [tex]=20\times 0.88[/tex]
→ [tex]= 16 \ mm[/tex]
Thus the response above is correct.
Learn more:
https://brainly.com/question/24716995
Summer happens when the Earth is closest to the Sun.
True or False
!!!HELP QUICK!!!
Answer: False
Explanation:
Summer happens when the Earth is far away from the Sum
Are these ramen noodles expired?
Answer:
it depends on the numbers on the bottom they foretell the nono time to eat
Answer:
they look fine, just check the expiration date and make sure the package wasn't already opened.
Explanation:
they look good to me though, so I'd say eat up!
A protein is a king chain of amino acids joined together
Answer:
That is correct, also amino acids are monomers (building blocks) of proteins (1 of the 4 biomolecules).
What body system is the human heart part of?
Answer:
the answer will have to be The heart is apart of the circulatory system.
Explanation:
Heat is necessary for all of the following processes except for:
A.Condensation
B.Evaporation
C.Melting
D.Boiling
Heat is necessary for evaporation, melting and boiling. The correct option is A.
What is condensation?Condensation is the transformation of water vapor into liquid. It is the inverse of evaporation, in which water turns into a vapor.
Condensation occurs in one of two ways: the air is either cooled to its dew point or becomes really filled with water vapor that it cannot retain any more water.
Condensation happens when warm air collides with cold surfaces or when your environment is overly humid.
When this moist warm air comes into contact with a cold surface, it quickly cools and releases the water, which condenses into liquid droplets on the cold surface.
In the remaining processes, i.e., evaporation, melting and boiling it is required to heat them up.
Thus, the correct option is A.
For more details regarding condensation, visit:
https://brainly.com/question/956180
#SPJ6
Dogwood and oak trees are two kinds of plants found in a forest. These trees and other forest plants get the energy they need for making food from blank , which the plants use to produce sugar.
fill in the blank
Answer:
The sun / The UV lights that the sun emit
Explanation:
Dogwood and oak trees are two kinds of plants found in a forest. These trees and other forest plants get the energy they need for making food from Sun that is the solar energy which the plants use to produce sugar. Sun is the basic source that is used for photosynthesis.
What is the end product of photosynthesis ?Glucose is the end product of photosynthesis which is the ultimate source of energy for plants.
Photosynthesis usually takes place in 4 steps where the first step is the absorption of light where the light from sun is absorbed by stomata and the various reactions that take place in the light are called as the light reactions.
Transfer of light helps to electrons to excite and the excitation of electrons helps to make new products various phosophorylation reactions that is the production of ATP is taking place or the lysis of the product is taking place as well.
Learn more about photosynthesis at :
https://brainly.com/question/1757345
#SPJ2
Summarize What adaptations do cephalopods have to live an active way of life?
Answer:
The answer is below
Explanation:
The adaptations that cephalopods have, to live an active way of life are numerous, some of which are:
1. Development of a SIPHON. This is a form of the adapted foot that supports survival such as swimming and directional movement.
2. A powerful and flexible arm for movement and protection
3. Using ink to form visual distractions, against predators.
Note that a good example of cephalopods are known as octopus
(No links)
Which is NOT a characteristic of unsaturated fats?
A. liquid at room temperature
B. animal fats
C. kinks in the carbon chain
D. not fully saturated with hydrogens
Answer:
C
Explanation:
Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?
Answer:
I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.
Explanation:
The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.
Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.
How is a typhoon formed?
Answer:
A typhoon forms when winds blow into areas of the ocean where the water is warm. These winds collect moisture and rise, while colder air moves in below. This creates pressure, which causes the winds to move very quickly. The winds rotate, or spin, around a center called an eye.
Explanation:
Answer:
Compared to tropical cyclone, we have a few main requirements for typhoon development:
1. sufficiently warm sea surface temperatures,
2. Atmospheric instability,
3. High humidity in the lower to middle levels of the troposphere,
4. Enough Coriolis effect to develop a low pressure center,
5. pre-existing low level focus or disturbance, and
6. low vertical wind shear.
Explanation:
Should humans continue to use uranium yes or no and the reason
Answer:
Yes
Explanation:
Because uranium decays by alpha particles, external exposure to uranium is not as dangerous as exposure to other radioactive elements because the skin will block the alpha particles. Ingestion of high concentrations of uranium, however, can cause severe health effects, such as cancer of the bone or liver.
I need HELPPPP PLS ASAP ITS DUE TODAY PLSS. click on the image
Psychologists use which of the following strategies to determine a study's replicability?
a. Internal validity
b. Repeating the study
c. Study reframing
d. Generalizing
Psychologists use the strategy of repeating the study to determine a study's replicability, option (b) is correct.
Replication involves conducting the same study again, using the same methods and procedures, to see if the findings can be reproduced. This process helps psychologists to establish the reliability and generalizability of the original study's results. Replication is crucial in science as it allows researchers to assess the consistency and robustness of the findings across different samples, settings, and conditions.
If the results of a study can be consistently replicated, it increases confidence in the reliability and validity of the findings. Replication also enables researchers to identify potential factors that may influence the results, such as sample characteristics or contextual variables, and helps to refine and validate existing theories and models, option (b) is correct.
To learn more about psychologists follow the link:
https://brainly.com/question/30836688
#SPJ4
What causes evolution to occur in organisms? Explain the process of evolution and how it is driven by various factors.
Answer:
Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift. This occurs because organisms with advantageous traits pass on more copies of these heritable traits to the next generation
Explanation:
If not then sorry I tried my best to help out.
GOOD LUCK!!!!
why is it important to classify the millions of species on earth
There are millions of species that exist on Earth. This helps in organizing each specie according to the characteristics, and traits. The classification is done to show the hierarchy and focuses on the relationships that the organisms possess with other organisms about evolution.
How did people in the North use natural resources differently than people in the South? (5 points) a They were more industrial, while Southerners were more agricultural. b They protected their natural resources better than the Southerners. c They used their own natural resources to run their factories and farms. d They were more agricultural, while Southerners were more industrial.
Answer:
i would choose A.
Explanation:
the north was definitly more industrial
hope this helps!
Thay protected their natural resources better than the sotherners
Explain how Anna’s diet differed on August 11 and on August 12. Which was more appropriate for a diabetic?
Anna's diet differed on August 11 and August 12. On August 11, she ate a total of 155 grams of carbohydrates while on August 12, she ate a total of 90 grams of carbohydrates.
The August 12 diet is more appropriate for a diabetic.What is Diabetes?Diabetes is a metabolic condition that occurs when the body is unable to produce or use insulin properly. It results in elevated blood sugar levels, which can lead to a variety of health issues over time, including heart disease, kidney damage, nerve damage, and vision problems.Anna's diet on August 11 and 12:August 11:On August 11, Anna ate a total of 155 grams of carbohydrates.
Breakfast included oatmeal, a banana, and an English muffin with a total of 62 grams of carbohydrates. For lunch, she had a turkey sandwich and an apple, which added up to 58 grams of carbohydrates. Dinner included grilled salmon, a baked potato, and green beans, which added up to 35 grams of carbohydrates.August 12:On August 12, Anna ate a total of 90 grams of carbohydrates. Breakfast included scrambled eggs, whole-grain toast, and an orange, totaling 24 grams of carbohydrates. She had a chicken salad for lunch, which added up to 15 grams of carbohydrates. Dinner included beef stir-fry with vegetables and brown rice, which added up to 51 grams of carbohydrates.
To know more about carbohydrates visit:
https://brainly.com/question/30006059
#SPJ11
The Demaris family is deciding how to landscape their new home
Answer:
what is the name of this website
or the book?
Guys need your help!!! True or False???
If you have a reoccurring flu virus, your body’s memory B cells can help fight off the same virus.
Why is it T or F. Do not just restate statement.
Thanks!
Answer:
True, your body will develop antibodies against it
Explanation:
brainliest pls?
What is the most likely reason for the difference in the results? A. New Zealand farmers have access to larger areas of pastureland. B. New Zealand farmers feed their cattle more expensive grain. C. Milk in California is more concentrated than milk in New Zealand D. Cows in New Zealand are more efficient at producing milk.
Answer:
A
Explanation:
The other answers are weird.
Akshay wants to study global warming and climate change what field of study would be most useful to him
A. ) sociology
B. ) microbiology
C. ) anthropology
D. ) meterology
While global warming refers specifically to the increase in global temperatures, climate change encompasses all changes in the climate, including changes in precipitation patterns, sea levels, and the frequency and intensity of extreme weather events.
Meteorology is the scientific study of the atmosphere, including the study of weather patterns, atmospheric conditions, and climate. Meteorologists use a variety of tools and techniques to measure and analyze the atmosphere, including radar, satellites, and computer models. Meteorology is an interdisciplinary field that draws on many different branches of science, including physics, chemistry, and mathematics. Meteorologists use their knowledge of the atmosphere to forecast weather, study climate patterns, and understand the causes of climate change. Thus, in conclusion, the field of study that would be most useful for Akshay to study global warming and climate change is meteorology.
To know more about global warming visit:
https://brainly.com/question/3553382
#SPJ11
The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that
A. Reduces the rate at which oxygen is carried to the muscle cells
B. Increases the rate at which carbon dioxide is carried to the muscle cells
C. Results in the production of more ATP in muscle cells
D. Slows the destruction of enzymes involved in respiration of muscle cells
Answer:
C. Results in the production of more ATP in muscle cells
Explanation:
Please mark me as brainliest.
Identify the factor below as genetic or environmental factors that may influence susceptibility to disease?
Answer: in order age to exercise,
genetic, environmental
Pls help me and thank youuu
Answer:
I think your answer would be C... please correct me if im wrong.
I was thinking B but I need another opinion.
NO LINKS AND IF YOU DO YOU WILL GET REPORTED
Answer:
YES YOU WERE RIGHT B MAKES SENSE
Explanation:
Answer:
B) 1 and 2
Explanation:
Both 1 and 2 are true in the actual Solar System. Number 3 is incorrect because Earth is only tilted at a 23.5 degree angle. Number 4 would make a oval or other shaped orbit, so it's incorrect.
Hope it helps!!!
HELP!!! 50PTS!!!
A population of deer has a carrying capacity of 875 deer, with a maximum rate of increase of 1.0 per individual per year. Using the logistic population growth model, what is the approximate population growth rate for a population of 420 deer?
148 deer per year
218 deer per year
307 deer per year
474 deer per year
Answer:
Option B, 218 deer per year
Explanation:
As we know
[tex]\frac{dP}{dt} = kP (1- \frac{P}{K})[/tex]
Where K is the carrying capacity
K is the rate constant
dP/dt is the change in population per unit time and
P is the population
Substituting the given values we get
[tex]\frac{dP}{dt} = k * 420 * (1-\frac{420}{875})\\= 1 *420 * (1-0.48)\\= 218[/tex]
Option B is correct
Answer:
218!
Explanation:
took the flvs test and got it correct
Which is not a property of an acid?
A)
tastes sour
(B) has a high pH
(C)reacts with metals
D contains the element hydrogen
If you were able to stop the process of cellular respiration after completing electron transport but prior to chemiosmosis (the movement of hydrogen ions), you would find the pH of a mitochondrion to be at its lowest:
a. in the mitochondrial matrix.
b. on the inner membrane.
c. in the intermembrane space.
d. in the cytoplasm.
e. on the outer membrane.
The pH of a mitochondrion would be lowest in the intermembrane space if you were able to interrupt the process of cellular respiration after electron transport but before chemiosmosis (the migration of hydrogen ions). Hence (c) is the correct option.
No exchange of gases would occur. Due to a shortage of oxygen, cells, tissues, and other organs will begin to perish. Within the cells and tissues, carbon dioxide will begin to build up. By pushing protons from the mitochondrial matrix into the intermembrane space as it transports electrons, the electron transport chain creates the chemiosmotic gradient.
To know more about respiration, click here:
https://brainly.com/question/31036732
#SPJ4