Answer:
A section of the spacecraft is slowly rotated in order to simulate the force of gravity.
Explanation:
The rotational force of the spacecraft makes an artificial sort of gravity, which can be altered by changing the speed of the spinning or by moving the rotating part further/closer to the center point of rotation.
An aquarium is a small closed container in which a selection of living plants and small marine animals are kept and observed. What kind of system is modeled by this setup? A) a wet B) a zoo C) a fish D) an ecosystem
Answer:
An ecosystem (D)Explanation:
An ecosystem is a community of interacting organisms and their environment.At what stage in prenatal development do vital organs begin to form?.
Answer:
embryonic stage
Explanation:
the embryonic period, or period of organogenesis
When psychological symptoms interfere with daily life they are considered
When psychological symptoms interfere with daily life they are considered dysfunctional.
Why are these symptoms considered dysfunctional?Dysfunctionality is when we are not able to function as what society considers to be normal. These symptoms are considered dysfunctional given that they are preventing us from completing the normal everyday tasks that are expected of us.
Therefore, we can confirm that when psychological symptoms interfere with daily life they are considered dysfunctional.
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When psychological symptoms interfere with daily life they are considered as dysfunctional.
What is dysfunctional?For instance, an person experiencing delusions that he's an all-powerful deity could have a breakdown in cognition due to the fact his idea methods aren't regular with reality.
Dysfunction consists of disturbances in a person's thinking, emotional regulation, or conduct that displays big disorder in psychological, biological, or developmental methods underlying intellectual functioning. In different words, disorder refers to a breakdown in cognition, emotion, and/or conduct.
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In plants, the vascular tissue made of dead cells that transport water and minerals from the roots is called.
Answer: xylem
Explanation: xylem is a plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.
In scenarios 2 and 3, the simulation settings are such that it takes 30 days to run the vaccination campaign and 14 days to develop immunity. Explain the logic behind these setting choices. Hint: there are two reasons, one is biological and one is logistical.
The two possible reasons for these setting choices are that it takes to the body around 14 days to develop immunity and that vaccinating a lot of people is logistically demanding.
What are vaccines?Vaccines are biological substances that help the body develop immunity against a virus, bacteria, etc. This is possible because vaccines contained a weakened or modified version of the pathogen that would help the body secrete specific antibodies for the real pathogen.
What is the possible reason for the 14-day setting?Immunity does not occur immediately, indeed, it takes the body up to 14 days to build up immunity. This includes the modern vaccines.
What is the possible reason for the 30-day setting?On the other hand, giving vaccines to large populations is quite demanding and challenging. Due to this programs with multiple weeks including four-week programs are ideal.
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Viruses ___________________________________________________.
are living because they reproduce with help from a host.
are not living because they do not grow.
are not living because they do not respond to stimuli.
are living because they have organelles.
What is the main difference between adult and embryonic stem cells
Answer:
A variety of adult stem cells can be found, but embryonic stem cells are derived from the three germ layers. The main difference between adult and embryonic stem cells is that adult stem cells are multipotent whereas embryonic stem cells are pluripotent.
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Explanation:
An articulation in which bones are joined by hyaline cartilage is called a.
Answer:
A synchondrosis (“joined by cartilage”) is a cartilaginous joint where bones are joined together by hyaline cartilage, or where bone is united to hyaline cartilage. A synchondrosis may be temporary or permanent. A temporary synchondrosis is the epiphyseal plate (growth plate) of a growing long bone.
classify each organism as a carnivore and herbivore or an omnivore
A. blank Buffalo
B. blank bear
C. blank spider
D. blank cow
The executive branch?
Answer:
The executive branch carries out and enforces laws.
Explanation:
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Which cells are no longer capable of carrying out the process of dna transcription?.
The cells that is no longer capable of carrying out the process of DNA transcription is the Tracheids cells.
Tracheids cells
They are a long and tapered lignified cell in the xylem of vascular plants. The main functions of tracheid cells are to transport inorganic salts and water, and they also provide structural support for trees.
Therefore, tracheids cells is the cell which is no longer capable of carrying out the process of dna transcription.
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What is alternation of generation
Alternation of generations is a type of life cycle in which subsequent generations of plants alternate between diploid and haploid organisms.
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Human red blood cells are enucleated (i.e., they do not have nuclei). Is it possible to isolate DNA from red blood cells
Answer:
No, the genomic DNA is found only in nucleated cells.
Explanation:
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What is the competitive exclusion principle?
Use the points of the cell theory to say why humans and bacteria are similar.
Answer:
Humans have many cells. Bacteria have one cell. The second point is that cells are the basic unit of structure and function in humans and bacteria. The third point is that new human and new bacterial cells come only from other human and bacterial cells.
Explanation:
Which term describes a chemical reaction in which water is gained?
A. Reduction
B. Hydrolysis
C. Dehydration
D. Hydration
I am confused because I thought the answer was dehydration synthesis, but that isn't on here. Please answer as soon as possible. :)
Answer:
hydration
Explanation:
cuz water is gained and something is hydrated
What do you think influences how fast a river flows?
Answer:
how ever fast the wind is
Explanation:
Answer:
The shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries, and the amount of friction caused by rough edges within the riverbed.
Explanation:
Everything above what I said: is influencing the speed of a river
Which characteristics were first observed in fish?.
Which two main clades branch from the most recent common ancestor of the eumetazoans?.
Answer:
Rotifera and Deuterostomia
Explanation:
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Why is it difficult to male level 4 organs in a lab?
Answer:
By providing an example using one organ for each of the four levels of complexity, we have the following:First level organ: Skin; this is because it takes up a few cells. Second level organ: Windpipes; this is because they have more complex shapes with multiple cells. Third level organ: Stomach; this is because the stomach has to act on demand instead of a flow. Fourth level organ; Heart. The reason it is difficult to make level four organs in a lab is that it has a complicated architecture with several cells, blood vessels and tiny capillaries included. So far, scientists are yet to fully develop solutions for the level four organs and hence, difficult to create in a lab.
Explanation:
What are similarities of the skull?
Answer:
It can provide a fascinating perspective on how animals are related.
A student learning about heat transfer makes the claim shown:
"Some metals change temperature more rapidly than other metals."
The student proposes to test the claim in the laboratory by using metal rods made of iron (Fe), copper (Cu), and Aluminum (Al). In addition to the metal rods, which pieces of equipment would be useful for investigating the claim?
Group of answer choices
prism, heat lamp, screen, meterstick
beaker, digital scale, stopwatch, clamps
litmus paper, beaker, pan balance, battery
hot water, pan to hold water, stopwatch, thermometer
Hot water, pan to hold water, stopwatch and thermometer are the pieces of equipment which would be useful for investigating the claim.
What is Temperature?
This is the degree of hotness or coldness of a substance and it is measured with the use of the thermometer.
Since temperature is involved, the thermometer and heat source are important thereby making option D the most appropriate choice.
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Option D
Well the raising speed of temparature of a metal is dependent upon its specific heat capacity .
If specific heat capacity is more then the water will boil faster .
From stopwatch we can determine how fast the water boils in identical pans .
Which will help in determining specific heat capacity
Keeping blood in the different chambers of the heart from mixing is a function what structure?.
Answer:
Muscular walls, called septa or septum, divide the heart into two sides and keep the two kinds of blood from mixing. Heart valves There are four valves within the heart. Each valve has flaps that prevent blood from flowing in the wrong direction — opening to allow forward flow of blood and closing to prevent backward flow.
Explanation:
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The amount of dissolved oxygen decreases with increase in temperature.
However, in chart 1 it was observed that the amount of dissolved oxygen increases with increase in temperature.
What is the relationship between dissolved oxygen and temperature?Dissolved oxygen is the amount of oxygen dissolved in water at a given temperature. Dissolved oxygen is important to aquatic animals for respiration.
The relationship between dissolved oxygen and temperature is that dissolved oxygen increases with decrease in temperature and vice versa.
Based on chart dissolved oxygen initially had a linear relationship with temperature. This, however is contrary to the expected results.
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Which plant structures are common to all angiosperms?
spores
flowers
cones
endoskeleton
Answer:
Flowers
Explanation:
All angiosperms produce flowers.
Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for.
Muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.
What is muscle tissue?Muscle tissue are body tissues that are made up of cells, these cells helps to produce movement of the various body part.
This movement are enhance through contraction of the muscle and the tissue are adequately supplied with blood vessels.
Therefore, muscle tissue, one of the four basic tissue groups, consists chiefly of cells that are highly specialized for contraction.
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Earth orbits the Sun every 365 days, causing seasonal patterns that vary by location. In the winter, the Northern Hemisphere is tilted away from the Sun, and receives the smallest amount of solar energy than any other time of the year. What can be expected in the Northern Hemisphere during this season?
A) warmer temperatures and decreased daylight
B) cooler temperatures and increased daylight
C) warmer temperatures and increased daylight
D) cooler temperatures and decreased daylight
Answer:
D) cooler temperatures and decreased daylight
What is the function of the mucus membrane that lines the nasal cavities?.
Answer:
The nasal cavity is the inside of your nose. It is lined with a mucous membrane that helps keep your nose moist by making mucus so you won't get nosebleeds from a dry nose. There are also little hairs that help filter the air you breathe in, blocking dirt and dust from getting into your lungs.
The female gametophyte is a _______ structure called an embryo sac, while the male gametophyte is a _______ structure called a pollen grain. When pollen attaches to the stigma of a flower, one of the sperm cells fertilizes an egg cell, producing a _______ zygote. Another sperm cell fertilizes the polar nuclei, forming a ________ endosperm. The _____ will eventually develop into the sporophyte.
The answers to the blank spaces in the question are as follows:
HaploidHaploidDiploidTriploidZygoteWhat is double fertilization?Double fertilization is a specific feature of angiosperms involving two male gametes and one female gamete.
In double fertilization, both the female and male gametes are haploid structures i.e. contain one set of chromosome.
One of the haploid sperm cells fertilizes an haploid egg cell, producing a diploid (2n) zygote. However, the other sperm cell fertilizes the polar nuclei, forming a triploid endosperm.
The zygote will eventually develop into the sporophyte (vegetative plant).
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Which of the following is a typical product of nuclear fission? a. oxygen b. carbon dioxide c. radiation d. water please select the best answer from the choices provided a b c d
The answer will be :
C. radiation
Answer:
C
Explanation:
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