Answer:
It is possible for large molecules to join a cell by a method called endocytosis, where a small piece of the cell membrane surrounds the particle and is brought into the cell. If the particle is solid, endocytosis is also dubbed phagocytosis. If fluid droplets are taken in, the process is called pinocytosis.
How do the final products of meiosis differ in reproductively capable humans that produce sperm versus eggs?.
Answer:
In males the result is 4 sperm cells
In females the result is one ovum and 3 polar bodies
The final products of meiosis in males is four sperm cells and in females it is one ovum and three polar bodies. Thus, the final product of meiosis is four sperm cell in male and one ovum in female with three polar bodies.
What is meiosis?
Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes.
The main functions of meiosis are mentioned below:
1) Meiosis in humans causes the decrease or reduction of the number of chromosomes in normal cells which is specifies as production of gametes.
2) Meiosis induces genetic variation by the process of recombination.
The main objective of meiosis is to produce gametes, the sperm and eggs, with half of the genetic character of the parent cell.Meiosis is a process in which a single cell divides into two identical daughter cells and the process is known as cell division.
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There is some evidence that a relatively low level of autonomic nervous system arousal may contribute to:.
There is some evidence that a relatively low level of autonomic nervous system arousal may contribute to antisocial personality disorder.
What is an antisocial personality disorder?An antisocial personality disorder is a mental (cognitive) disorder characterized by antisocial behavior.
An antisocial personality disorder can be triggered by both genetic factors and environmental factors.
It has been shown that a low level of autonomic nervous system arousal may influence this personality disorder.
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Why is it important to ask a person who has an insect sting if they have had any prior serious reactions to insect stings
It is important to ask about the reactions caused by an insect bite because this will allow you to act quickly if there are health effects.
What is an insect sting?The insect sting is the way in which insects defend themselves when they feel attacked by other organisms. Insects generally have stingers or spikes on their bodies to defend themselves against predators.
Why is it important to be aware of the effects of a sting?When a person suffers a sting, it is necessary to report all the symptoms that they experience because some insects have substances that affect the body and can cause allergic reactions that put the health and life of the individual at risk.
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What effect do predators have on the ecosystem?
Answer:
Dispersing rich nutrients and seeds from foraging, they influence the structure of ecosystems.
Answer:
They keep prey populations at a managable level.
Explanation:
For example, a wolf pack will hunt deer and kill deer. This killing will make sure there is never too many deer. If there are too many deer, too many plants may be eaten; And then the entire ecosystem can fall apart.
in a certain plant, tall stems (T) is dominant over short stems (t). A farmer crosses two heterozygous long-stemmed flowers. What are the expected genotypic and phenotypic ratios
Answer:
Tt = 50%
tt = 50%
tall = 50%
short = 50%
I hope this helps you
:)
Name 3 factors you can use to determine if organisms are apart of separate species.
Answer:
According to the biological species concept, organisms belong to the same species if they can interbreed to produce viable, fertile offspring. Species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.
Please helppp with this question
Heyy.
So i did the alternative activity for this assignment.
In task one I only did part F:
answer:
Weathering damage on Cleopatra's Needle, an Egyptian obelisk in Central Park, New York City, is compared to known weathering rates of granites in various regions. The detrimental influence of the city's environment in 83 years of exposure has been attributed by textbook authors to damage to this coarse-grained foliated granite. As evidenced by the original depth of inscription in New York, about 11/2 inches of maximum surface reduction had occurred. Granite reduction rates in humid regions were calculated to be as low as 0.0076 mm per year, and even lower in deserts. The majority of the damage to the obelisk was caused by rising moisture laden with sulfate salts in Egypt, according to the findings. The hydration pressure of these salts, combined with frost wedging, is responsible for the major damage to the monument, which happened during its first few years in New York.
In task 2 I only did part D
answer:
Two independent sets of observations on sand activities in relation to the flowing river are recorded as the water passes through the meandering river. Stream abrasion can affect the morphology of a stream or river dramatically over time. Because the water can start erosion with anything near it, erosion can impact human communities near rivers.
MAKE SURE YOU SAY THAT YOU DID THE ALTERNATIVE ACTIVITY!!!!
In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________.
In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be identical.
Which of the following will occur immediately after ovulation?The corpus luteum prepares to become a corpus albicans. The corpus luteum secretes estrogen only. The secretion of anterior pituitary gonadotropins is enhanced.
Thus, in this case would be identical.
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Match the term to the definition. Question 1 options: 19 The rising of ocean water bringing nutrients up from the deep. 1 The cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation. 4 As the amount of salt in water increases, the density of the water _________. Water circulation created by differences in density. The type of energy possessed by moving water. The distance from the crest of one wave to the crest of another. The amount of dissolved salt in a liquid. Water circulation created by prevailing wind systems. The Gulf Stream is an example. This is what moves forward and through a wave. The length of open sea over which wind can blow steadily to create waves. 1. The water cycle 2. vapor transport 3. salinity 4. increases 5. decreases 6. surface currents 7. Coriolis Effect 8. deepwater currents 9. trough 10. wave period 11. wavelength 12. water molecules 13. energy 14. crest 15. fetch 16. electrical 17. kinetic 18. downwelling 19. upwelling
The movement of molecules of water is due to the energy possessed by the water molecules.
What is upwelling?Upwelling refers to the rising of ocean water bringing nutrients up from the deep.
Other definitions are as follows:
Water cycle- the cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation.As the amount of salt in water increases, the density of the water increases.Deepwater currents -Water circulation created by differences in densityKinetic energy is the type of energy possessed by moving water.Wavelength is the distance from the crest of one wave to the crest of another.Salinity is the amount of dissolved salt in a liquid. Water circulation created by prevailing wind systems.The Gulf Stream is an example of Coriolis effect. Energy what moves forward and through a wave.The length of open sea over which wind can blow steadily to create waves fetchTherefore, the movement of molecules of water is due to the energy possessed by the water molecules.
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A man with type A blood marries a woman with type B blood. Their child has type O blood. What is the genotype of the woman
Answer:
The genotypes of the two parents are AO and BO. Blood types A and B are dominant over blood type O,
Explanation:
An offspring inherits their genotype (genetic makeup) from their parents with each parent providing one allele for a given trait. An offspring need only inherit one dominant allele to have the phenotype (observable physical characteristic) of that trait and must inherit a recessive allele from each parent in order to have that phenotype. For example, brown hair is a dominant trait and only one parent must provide that allele for hair color in order for their offspring to have brown hair. In order for the recessive trait of blonde hair to be the phenotype of the offspring, each parent must provide the blonde hair allele.
(20 points) pls help
Use the map below to describe the type of weather the
town at the arrow will be experiencing in the next few hours.
Answer:
rain, I think because I watch the news a lot an d the triangles usually mean rain
Part A
You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:
Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.
Based on the mutation rate of the molecular clock, it will take 22.5 million years for one full base pair mutation to occur.
What is a molecular clock?A molecular clock is a biomolecule which is chosen to serve as a clock due to its periodical changes in a regular pattern.
Mutation in genes can serve as molecular clock.
The mutation in the gene of coding for the venom mutates at a rate of 0.76 base pairs every 17.1 million years.
It will take 17.1/0.76 = 22.5 million years for 1 base pair to mutate.
Therefore, it will take 22.5 million years for one full base pair mutation to occur.
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What is oxygen and why it is important??((´^ω^))
Explanation:
Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.
What if the gas molecules collide at very low temperatures? will that change what happens? why?.
Answer:
At low temperatures, gas particles have less kinetic energy, and therefore move more slowly; at slower speeds, they are much more likely to interact (attracting or repelling one another) upon collision
If the gas molecules collide at very low temperatures then the collision will be slower as the intermolecular forces are stronger at the lower temperature and it is demanding situation to give high energy in order to break the bonds.
What is the fate of collision of gas molecules ?The fate of gas molecules is the formation of making gases compounds by making the elements bind together in order to form a new compound.
At the lower temperature, the average velocity of the molecules that are possessed by the molecules is decreased therefore the gas molecules will have lesser kinetic energy and they will move very slowly in order to form a new compound.
Gases do not exert much of force on each other but they do possess a collision with each other and the collision molecules are elastic so as they are able to do collision.
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the specific heat of a wax coating on a plant is 2400 j/kg degrees Celsius. During the day a 0.0055 kg coating of wax on a lead heats up from 15 to 22 degrees Celsius. How much radiant energy was absorbed by the wax?
The radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
Heat absorbed by the waxThe heat absorbed by the wax is determined as follows;
Q = mcΔT
where;
m is mass of the waxc is specific heat capacityΔT is change in temperatureQ = 0.0055 x 2400 x (22 - 15)
Q = 92.4 J
Thus, the radiant energy was absorbed by the wax coating on the plant is determined as 92.4 J.
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By the end of the second trimester of pregnancy,
A.
all a human's body parts have been formed.
B.
a human's brain has not yet formed.
C.
a human's brain has not yet begun to function.
D.
all a human's body parts are fully developed.
Answer:
D
Explanation:
The baby is done growing and body parts are fully developed.
Answer:
Option C
cacause the fetus will be 13-16 inches longer and weight will be3 -5 pounds
Explanation:
Which two sentences best explain what happens to the energy snails get
from the plants they eat?
. A. The snails use about 1% of the plants energy to carry out life
processes.
. B. About 90% of the energy is lost as heat escapes into the
surroundings.
. C. The snails use about 10% of the plants energy to carry out life
processes.
D. About 90% of the energy IS passed on to the birds that eat the
snalls
Pls hurry
Answer:
B. About 90% of the energy is lost as heat escapes into the
surroundings.
C. The snails use about 10% of the plant's energy to carry out life
processes.
Explanation:
Removal of the fallopian tubes and ovaries: a.Salpingectomy b.Conization c.Total hysterectomy d.Bilateral salpingo-oophorectomy e.Partial hysterectomy
Answer:
D: bilateral salpingi-oophorectomy
What are three ways to reduce the use of energy at home?.
Puberty in humans is the result of changes in the ___________, which result in an increased secretion of _________, which then stimulates an increased secretion of __________.
Answer:
hypothalamus; GnRH
Explanation:
Puberty is the result of chanes in the hypothalamus. Causing increased secretion of gonadotropin-releasing hormone (GnRH)
The hereditary material in corn plants can be altered by scientist so the plants produce more corn. which term identifies this process?
Answer:
Genetic engineering
Explanation:
So there's Environmental degradation ,Ecological succession
Genetic engineering , Selective breeding . and so all the other ones aren't related to the materiel in corn so that makes it Genetic engineering ing
How does your digestive and musculoskeletal system work together
Explanation:
The muscular system allows for movement within the body, for example, during digestion or urination. Smooth muscles in the gastrointestinal or GI tract control digestion.
If an object is being pulled toward the
center of the Earth, what force is acting
on it?
Gravitational force the force acting on the object.
A neuron that responds most strongly when an animal is in a particular location in the environment is a: a. Center-surround cell b. Location cell c. Hypercomplex cell d. place cell
A place cell is a neuron that responds most strongly when an animal is in a particular location in the environment.
What is a Place cell?These are types of neurons which fire when animals go to certain locations in the environment.
These type of cells are found in the hippocampus and is characterized by their peak activity.
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Select all that apply.
A food chain or food web can provide good information including _____.
how much energy is transferred from one organism to another
the types of food that are best for you to eat
the eating patterns of organisms
the flow of energy in an ecosystem
Answer:
the flow of energy in an ecosystem
the eating patterns of organisms
how much energy is transferred from one organism to another
Explanation:
A food web is an interconnection of multiple food chains and a practical representation of what-eats-what in an ecosystem, while a food chain is a linear sequence of how nutrients and energy (in the form of food) are transferred from one organism to another organism in an ecosystem. A food web contains many interconnected food chains. A food web or food chain provides information about how organisms are connected, the eating patterns of organisms, and the flow (or the amount) of energy that is transferred from one level to another through different organisms in an ecosystem.
How do living organisms affect different parts of the biosphere?
Answer:
inhale oxygen and exhale carbon dioxide (CO 2) from the atmosphere.
Explanation:
What is the base pair rule? Which base pairs bond together to form the "steps" of the DNA
ladder.
Evaluate whether a sea beeze could occur night
Answer:
During the night the water releases it's heat much slower causing the air over the water to be warmer than the air over the land. This ends up working the same as the sea breeze only this time the lower pressure is over the sea and the air then moves from the land.
Answer: During the night the water releases it's heat much slower causing the air over the water to be warmer than the air over the land.
which of these pairs of organisms are most closely related?
A) aix sponsa and anas acuta
B) anas discors and anas americana
C) martes americana and mycteria americana
D) anas cyanoptera and mycteria americana
Answer:
B anas discors and anas americana
Explanation:
They are the most related out of the options since they are from the same genus.
The blood flow through the kidney is special because:.