Answer:
a. radius of vessel
The drug chloral hydrate prevents elongation of microtubules. During which stage of the cell cycle would chloral hydrate be most
harmful?
Multiple Choice
M phase
G1
G2
S phase
cytokinesis
Answer: G1 phase
Explanation:
Hope this helps!
Which best describes a method of obtaining energy that may cause changes in
water temperature and harm to fish populations?
A burning coal
B using ethanol in cars
C installing solar panels on a home
D generating electricity in a hydroelectric power plant
Group of answer choices
Answer:
D. generating electricity in a hydroelectric power plant.
Explanation:
Renewable energy is also known as clean energy and it can be defined as a type of energy that are generated through natural sources or technology-based processes that are replenished constantly. Some examples of these natural sources are water (hydropower), wind (wind energy), sun (solar power), geothermal, biomass, waves etc.
Basically, a renewable energy source is sustainable and as such can not be exhausted.
Generating electricity in a hydroelectric power plant best describes a method of obtaining energy which may cause changes in water temperature and harm to fish populations. This is due to the operation of powerful electric steam turbines operating at high voltage.
Describe what happens when cells divide uncontrollably?
What is a chromosome and what is its relationship to DNA?
Answer:
hi
Explanation:
Which of the following steps in the water cycle represents a change in the state of
matter?
a. Condensation
b. Evaporation
c. Sublimation
d. All of the above
Select the correct answer.
Who do we consider to be the founder of genetics?
Answer:
C: Gregor Mandel
Analyzing the following tree, prove the relationship between ray-finned fish and crocodiles using the characteristics given below. Include at least three (3) characteristics that the organisms DO NOT have in common and one characteristic that they DO have in common. Your paragraph should be at least four (4) sentences. Remember to answer in COMPLETE sentences and use proper grammar.
Answer:
The Ray- Finned Fish has a bony skeleton just like crocodiles. Crocodiles evolved more and adapted to their environment. Along the way Crocodiles grew to have four limbs, were born from an amniotic egg, and then their eggs also have shells, unlike the Ray-finned fish. Therefore the three characteristics they do NOT have in common are: Four Limbs, Amniotic Egg, and Eggs with Shells. The one trait they do have in common is Bony Skeletons. They also both have vertebrae.
Which of the following do plants use for energy?
Answer:
phhotosyntesis
Explanation:
5 Which word should replace the question mark in the diagram? ? Water droplet Reflection А Refraction B Reflection C Light energy D Rainbow
Answer:
percipitation
Explanation:
I took this class already
Which statement is true based on the data in the table?
A. The United States uses more land to grow crops than to maintain forests
B. The United States uses more land for parks and wildlife than for forests
C. The United States uses more land for parks and forests than for urban areas.
D. The United States uses more land for urban areas than for grasslands and ranges
Answer:
C. The United States uses more land for parks and forests than for urban areas.
Explanation:
According to the given data, the size of land used for parks and forests in United States is 313 million acres. The land used for urban areas is 61 million acres. This data here presents a comparative detail of the size of land and the purpose it is used for.
The maximum land used by United States is for forest area and grass range. This depicts that more stress is levied on keeping the land green.
Answer:
C.
Explanation:
Person above is right.
22)
The Master answered, "Never fail to comply."
Fan Ch'ih was driving. The Master told him about the interview, saying, "Meng-sun asked me about being filial. I answered,
"Never fail to comply."
Fan Ch'in asked, What does that mean?
The Master said, When your parents are alive, comply with the rites in serving them; when they die, comply with the rites in
burying them; comply with the rites in sacrificing to them.'
Analects II, 5
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Which principle of Confucianism does this support?
A)
Virtue
B)
Social Order
Mandate of Heaven
D)
Ancestor Veneration
23)
The start of the Korean War in 195
Answer:
D
Explanation:
Can someone pplease help me ASAP please
Answer:
Phosphate Group
Explanation:
Help plis..............
Answer:
the answer has to be C
hope this helps!
The body functions best with a particular set of conditions: an ideal body temperature, blood pressure, blood sugar level, and many other ideal conditions. Which of the following is NOT true regarding homeostasis?
Answer:
what are the answer chocices
Explanation:
Explanation:
where is the answer choice??
Select the correct answer.
Lily feels tired and weak in the evenings after work. Before starting her chores, she eats dinner. Which characteristic of life does Lily exhibit?
A.
growth
B.
need for energy
C.
organization
D.
regulation
Some cells live for years, while others live for only a few days. Why do some cells get replaced faster than others?
Answer:
Some cells don't divide and last you a life time such as many of those in the central nervous system other cells such as stems called cell populations have their telemeres repeatedly extended by the enzyme telomerase other cells are never replaced and live as long as we do .
I hope this answer might help u
What was the most important gas contributed by stromatolites?
a. carbon dioxide
b. nitrogen
c. ammonia
d. oxygen
Oxygen was the most important gas contributed by stromatolites. Thus, the correct option is D.
What are Stromatolites?Stromatolites may be defined as rock or microbial reefs that are formed by cyanobacteria (blue-green algae).
Stromatolites are responsible for the oxygenation of the atmosphere. Blue-green algae fed off carbon dioxide and convert it into the marine sediments known as Stromatolites.
Therefore, the correct option for this question is D.
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Answer:
I hope this helps.
Explanation:
Most of the oxygen in the atmosphere is made by algae. Where do most of the algae live?
coastal ocean
deep ocean
ponds
lakes
Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae. Hence the correct option is A.
What is Algae?Algae is defined as a member of a group of primarily aquatic photosynthetic organisms of the Protista kingdom. Algae is described as floating green matter on the surface of a pond, lake, river, still water, moist soil, stones that grow on wet surfaces. Therefore, they can synthesize their own food. They are found in water or in very moist places.
Algae play many important and beneficial roles in freshwater environments producing oxygen and consuming carbon dioxide that act as the base of the aquatic food chain, removing nutrients and pollutants from the water and stabilize sediments. Most of the oxygen in the atmosphere is made by algae, with coastal oceans housing the majority of algae.
Hence the correct option is A.
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Explain how meiosis results in UNIQUE cells.
Meiosis is a reduction division in which the number of chromosomes in the parent cells is halved to the daughter cells.
Meiosis is the process such as:
Meiosis occurs in the reproductive cells of humans. Meiosis transmits genetic information from parent to offspring. Meiosis is the characteristic feature of sexual reproduction. The male and female gamete fuse to give rise to a newly formed combination of the daughter cells.Meiosis results in the recombination of male and female gametes, which results in the independent assortment of the genes.
Thus, meiosis always results in new variations and creates genetic diversity.
To know more about meiosis, refer to the following link:
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Scientists recently published a paper about an endangered population of Scarlet Bass (species A) in Lake Erie. The authors also published its entire mitochondrial DNA sequence on Genbank, an online system where scientists submit genomic data. Another group of scientists later published an article using molecular data to estimate gene flow among populations of the very abundant Grey Bass species (species B) in Lake Erie, and published mitochondrial data on Genbank as well. After you read the papers you realize that the ranges for species A and a few isolated populations of species B overlap; you look at the sequence data published online from both studies, and you realize they are very similar and differ only by a few nucleotide differences. 8. Do you think these are closely related species, or variants of the same species
Answer:
They are variants
Explanation:
The biological concept of species states that members of the same species can reproduce they have a genetic reservoir in common: many genetic variants.
Genetic variability is the measure of a species organism´s tendency to differentiate. In genetic variability, individuals of the same species are not identical. They are recognizable as members of the same species, but they differ in shape, function, and behavior. There exist variations among individuals of the same species.
Genetic variability originates from mutations, recombinations, and karyotype alterations. It allows or makes possible evolution.
Groups A and B can be considered variations of the same species. They not only overlap but also share most of the genetic sequences with only a few nucleotide differences.
These variations might be the previous step for sympatric speciation.
Groundwater is an important source of drinking water especially in Florida. What is the underground reservoir where water is found?
Question 4(Multiple Choice Worth 4 points)
(05.01 LC)
Which process turns glucose into energy?
O Breathing
O Cell division
O Cellular respiration
Photosynthesisch
Please help ASAP
Answer:
cellular respiration
Explanation:
it involves the chemical activities of the cell in which glucose is broken down by a series of reaction controlled by the enzymes to release energy
Answer:
The answer is C
Explanation:
The answer is C because the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Describing the path of a water molecule through a convection current
Answer:
When we heat a container full of water, the water in the lower part of the container i.e. near the flame gets heated first. Warm water rises up and the cold water rushes below to take its place. This water again gets heated and rises up and the cycle continues.
Plz answer this test ASAP
The cardiovascular system is composed of two circulatory paths: pulmonary circulation and systemic circulation.
Pulmonary circulation transports deoxygenated blood from the right side of the heart to the
A. left side of the heart where it is pumped to the lungs for oxygenation
B. lungs where blood picks up oxygen and returns to the left side of the heart
C. lungs where blood picks up oxygen and returns to the right side of the heart
D. lungs where the blood picks up oxygen and transports it to the tissues of the body
Answer:
B. lungs where blood picks up oxygen and returns to the left side of the heart.
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
The cardiovascular system comprises of two circulatory paths:
I. Pulmonary circulation.
II. Systemic circulation.
Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs where blood picks up oxygen and returns to the left side of the heart.
The pulmonary circulation loop is mainly supported (powered) by the right atrium and right ventricle.
Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
Jill has quite a menagerie of pets and she regularly has to deal with minor animal injuries. So when Johnnie, her rooster, spikes Jessie, her collie, on the muzzle with one of his long leg spurs, Jill knows what to do. She reaches for the hydrogen peroxide and thoroughly floods Jessie's puncture wound with the liquid. Jill observes, as always, that the hydrogen peroxide causes heavy fizzing at the site of the wound. She repeats the procedure several times a day over the next week, carefully inspecting the wound for signs of infection. The injury heals without complications and Jessie has a new respect for roosters.
a) What is hydrogen peroxide and how does it help to reduce the infection?
b) Why is hydrogen peroxide especially useful for treating puncture wounds?
c) What causes the fizzing associated with hydrogen peroxide use?
Answer:
a.) Hydrogen peroxide are highly reactive oxygen compounds used as an antiseptic
b.) Used in treating punctured wounds due to the nature of the wound which helps microorganisms to thrive.
c.) Fizzing associated with hydrogen peroxide use is due to presence of the enzyme catalase.
Explanation:
Hydrogen peroxide is a chemical compound which is made up of two hydrogen atoms and two oxygen atoms. It is powerful oxidizing agent which takes part in biological reactions. This is possible as it can remove electrons from other biological molecules which can damage other cellular components. It is used an an antiseptic to reduce infection because, being a powerful oxidizing agent, it has the ability to react with cell wall of these microorganisms through removal of electrons thereby causing damage to it.
Punctured wounds are narrow in structure which allows obligate anaerobic organisms to thrive because of reduced oxygen flow in the wound. Hydrogen peroxide can effectively eliminate these organisms which are most likely to cause infection in that site because they lack the enzyme called catalase.
Catalase is an enzyme which is present in living cells except obligate anaerobic organisms. It converts hydrogen peroxide into water and oxygen. The fizzing noticed by Jill while cleaning the wound with hydrogen peroxide is due to the catalase in Jill's own cells which converts the hydrogen peroxide to water and oxygen. When oxygen is given off, fizzing reactions are seen at the surface of the wound.
does anyone know how to do this?
which lymphoid organs atrophies with age???????
a)Peyer patches
b)Thymus
c)Bone marrow
d)Spleen
answer plz (╯︵╰,)
Do AIDS transfer by saliva and sweat??????
It can only be transmitted when certain fluids from an HIV-positive person move directly into the bloodstream or through mucous membranes of an HIV-negative person. Tears, saliva, sweat, and casual skin-to-skin contact can't transmit HIV.
D. Explain the relationship between the pulse recorded in the finger and heart muscle contraction ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ E. Which components of the cardiac cycle (atrial systole and diastole, ventricular systole and diastole) are discernible in the pulse tracing? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Answer:
D. Heart contraction and pulse are connected with one another.
E. Atrial diastole and ventricle diastole.
Explanation:
Heart construction and pulse of an individual are connected as one can hear the pulse every time contraction of the heart is completed. Pulse can be understood by this that it represents the number of the contractions is completed by heart each time.
In the pulse tracing, there are two parts of the heart that are discernible which represents the contraction of the heart that are Atrial diastole and ventricle diastole.
The relationship between the pulse recorded in the finger and heart muscle contraction is that both are connected to each other. But, the analysis and processes are different from one another.
What is Muscle Contraction?
A process leading to shortening and/or development of tension in muscle tissues that means the thin filaments slide over the thick filaments and tension is generated between one another is called Muscle contraction.
The pulse recorded in the finger is a signal for flowing the blood throughout the body, while the process of heart muscle contraction signals for electrical conductivity. Both the functions are connected with each other and acquired by cardiac activities.
The components of the cardiac cycle that are discernible in the pulse tracing are Ventricular systole (contraction) and ventricular diastole (relaxation).
Therefore, both the pulse recorded in the finger and heart muscle contraction interconnected with one another and acquired by cardiac activity.
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Darwin and Wallace both observed greater species richness in the tropics than in Europe, but neither of them had a good explanation for why. One of the best-supported modern-day hypotheses to explain this pattern is that mutation rates are higher in the tropics than in temperate latitudes. Why would higher mutation rates lead to greater species richness
Answer:
Mutation shows the species energy relationships, tropics are more rich with energy as compared to the temperate europe.
Explanation:
The rate of species evolution is defined by the type of environment or the natural surroundings it lives in. Mutations Can affect organisms by making changes in their physical characteristics. Such can impact their DNA code and may even lead to death in many. The richness of species in the tropics is due to the more warmer and humid climates. They are suited to the development and germination of certain bacterias and have certain climatic phenomena.