During mitosis, chromosomes are moved and separated through the use of spindles composed of _ structures

Answers

Answer 1

During mitosis, chromosomes are moved and separated through the use of spindles composed of microtubule structures.
Hope this helps!

-Payshence xoxo

Answer 2

Answer:

During mitosis, chromosomes are moved and separated through the use of spindles composed of microtubule structures.

Related Questions

A skeletal muscle deprived of adequate atp supplies will _____.

Answers

The correct answer is that the skeletal muscle will enter a state wherein actin and myosin cannot separate. In the presence of adequate ATP, ATP will act to detach the myosin head to actin then ATP will be hydrolyzed to ADP then the myosin head will attach to actin. In the absence of adequate ATP, there will be no ATP to detach the myosin head to actin therefore the actin and myosin cannot separate and muscles will be contracted and stiff. This happens in ATP depletion and muscle stiffness in dead persons called rigor mortis.

Mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________. mechanical digestion, the process of breaking down large chunks of food into smaller pieces, is important because smaller pieces of food ________. are more easily stored in the stomach than are larger pieces of food are easier to excrete than are larger pieces of food do not taste as good as larger pieces of food have more surface area for chemical digestion than do larger pieces of food

Answers

This is because smaller pieces will have more surface area for chemical digestion than larger piece of food.

Foods are digested by a combination of two methods (mechanical and chemical. In mechanical digestion it brokes down physically the food into smaller pieces via chewing, churning and segmentation done in the intestine. In the mouth through mastication food is initially broken. In the stomach, the muscles in its walls squeeze and mix the food with digestive juices. In segmentation, contraction and relaxation of segments occur in the intestines.

It is important because smaller pieces of food have more surface area for chemical digestion than larger pieces of food do. Mechanical digestion begins in the mouth as the food is chewed, it is the physical breaking down the food by non-chemical means. In the mouth the specialized teeth break down the food as it is cut by the incisors, torn by the cuspids and ground by the molars. The food is then manipulated in the mouth by the tongue, and cheeks to mix and moisten the food forming a bolus or ball which is pushed to the back of the tongue, then swallowing takes place.

Evidence that cytoskeletal elements have ancient origins comes from

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-the sequence similarities of cytoskeletal elements when comparing distantly-related organisms.
-the presence of cytoskeletal elements in both eukaryotes and prokaryotes.
-the observation that both prokaryotes and eukaryotes use cytoskeletal elements to assist cell division.
-the ability to form functional hybrid microfilaments from actin monomers taken from distantly-related organisms.

"classifications of lipoproteins include: very low density lipoproteins, low density lipoproteins, high density lipoproteins and __________."

Answers

The four types of Lipoproteins are:

Very Low Density Lipoprotein: Very low density lipoprotein consists of protein, cholestrol and fats. It is synthesized at liver. It has 5 apoporotein asosciated with it and in conversion to intermediate density lipoprotein and low density lipoprotein these apoproteins are removed except one apoprotein called B100.

Low Density Lipoproteinfats. It chiefly consists of cholestrol. It transport all the fat molecules around the body to extracellular fluid. LDL posses risk of cardiovascualr diseases if it invade the endothellium and oxidized.

High Density Lipoprotein: HDL is the dense lipoprotein with highest protein to fat ratio.HDL takes awat fat from cells to liver thereby lowering blood cholestrol level. Hence also knows as good cholestrol. HDL increases with exercise, weight loss and higher estrogen level.

Chylomicrons: Chylomucrons are largest and least dense lipoprotein. It has got highest triglyceride content. It transport fats and cholestrol from intestine to liver, muscles and fat cells.

The right answer is chylomicrons.

A chylomicron is a variety of lipoproteins (protein-associated lipids) present in the blood consisting almost entirely of exogenous triglycerides.

In other words, it is large, light and bulky particles, of a greasy nature, taking a certain shape in the blood (which has a milky appearance when they circulate there), and carrying the triglycerides coming from the diet after a meal. high in fat.

A fossil skeleton with a basin-shaped pelvis, a central foramen magnum, and arched feet would most likely be classified as a(n) __________.

Answers

The answer is 'biped', i.e., an upright walking animal. The basin-shaped pelvis would support abdominal organs as well as mechanically assist locomotor and postural muscles. The whole at the bottom of a bipedal animal's skull through which the vertebral column attaches to the skull is called the foramen magnum. The arched feet of a biped are to support increased weight.

Answer:

These characteristics are observed in biped organisms

Explanation:

A biped organism is able to use two legs for walking. Bipedalism is an evolutionary adaptation produced by several skeletal changes shared in all bipedal species. The central foramen magnum, a short wide pelvis, and arched feet are factors that influence bipedalism, these features are required to achieve a better balance during the bipedal movement

A 1-month-old infant in the neonatal intensive care unit is dying. his parents request that a nurse give the infant an opioid analgesic. the infant's heart rate is 68 beats/minute and his respiratory rate is 18 breaths/minute. he is on room air; oxygen saturation is 92%. the nurse's response to the parents' request should be based on the fact that:

Answers

Answer:

Providing analgesia during the last days, and hours, is an ethically- appropriate nursing action.

Explanation:

All clients, regardless of age, have the right to die with dignity, and be free from pain. The parents have the right to request an opioid to relieve the child's distress. Assisted suicide requires some action on the part of the client, and this is not possible for a one- month old infant. Both the nurse and the parents have an ethical duty to the child. Withholding the opioid analgesic from a dying child is not appropriate, because, of fear it may hasten death, at any age, and this is not considered a contradiction for administering of analgesia.

Hope it helps.

Which of the organelles in the animal cell is involved in the disposal of cellular waste that is not transported out of the cell?
A.
mitochondria
B.
nucleus
C.
endoplasmic reticulum
D.
lysosomes

Answers

Hello there!

Lysosomes would be the organism that would be in the animal cell is involved in the disposal of cellular waste that is not transported out of the cell. This is practically there role in the organism account. To be involved in the disposal of the cellular waste that would not be transported out of the cell would be known to be lysosomes.

Your correct answer would be the (last option).

A. mitochondria
B. nucleus
C. endoplasmic reticulum
D. lysosomes

I hope this helps you!

Which of the following is a main function of a stem?
to anchor the plant to the ground
to store water for the plant
to store food for the plant
to bring water to the plant

Answers

A stem is one of two main structural axes of a vascular plant. The stem is normally divided into nodes and internodes, the nodes hold buds which grow into one or more leaves, inflorescence (flowers), cones or other stems etc. The internodes act as spaces that distance one node from another.

Answer:

to store water for the plant

Explanation:

Tommy lives at 60 degrees north latitude. He watches the day's weather forecast and learns that the polar jet stream will be positioned over his town today.

Image courtesy of NOAA

Judging from the above diagram, Tommy could predict ______ and _______ today.

Answers

Tommy could predict low air pressure and precipitation

Answer:

low pressure; precipitation

Explanation:

Which of the following is not an intensive physical property?
Electrical conductivity
Mass
Density
Freezing point

Answers

It's mass because mass is an extensive property not intensive.

Mass is not an intensive property of matter as it depends on the amount of matter present.

What are intensive physical properties?

Intensive physical properties are properties of matter which depends only on the type of matter in a sample and not on the amount of matter in that sample.

Examples of intensive properties of matter are:

Electrical conductivity Density Freezing point

Mass is an extensive property of matter.

Therefore, Mass is not an intensive property of matter as it depends on the amount of matter present.

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9. Biodiversity is valuable partly because it (1 point)
gives us interesting things to look at.
tells us about many other species.
contributes to medicine and agriculture.
provides humans with resistance to disease.
10. Which of the following is NOT a threat to biodiversity? (1 point)
pollution
deforestation
crop rotation
climate change

Answers

9. Contributes to medicine and agriculture Explanation: The plant varieties and different animal species in a given location helped vegetation and many medicines were found to help mankind.
10. Crop rotation Explanation: different varieties of crop were developed and rotation of crops in due seasons is essential for the growing population. Pollution, deforestation and climate change all affect the world.

What has occurred when a solid forms out of the mixing of two liquids in a chemical reaction?

Answers

the solid forms disolve in a chemical reaction

That means that the reactants of the chemical reaction have created or formed 1 or 2 new solid products, or precipitates (formation of a solid)

This also means that at least one of the products does not dissolve in solution

In a plant cell, where are the atp synthase complexes located? select all that apply

Answers

Thylakoid membrane - I think so

Final answer:

In a plant cell, the ATP synthase complexes are primarily located in the inner mitochondrial membrane and the thylakoid membrane system of the chloroplasts.

Explanation:

In a plant cell, the ATP synthase complexes are located in two major areas: the inner mitochondrial membrane and the thylakoid membrane of chloroplasts. The inner mitochondrial membrane houses the electron transport chain that pumps H+ ions across this membrane. The H+ ions then flow back through the membrane by way of ATP synthase, which catalyzes the formation of ATP.

In chloroplasts, the thylakoid membrane system contains the green photosynthetic pigment chlorophyll, where the light reactions of photosynthesis occur. This system involves photosystems I and II, the electron transport chain, and ATP synthase, which is integral for the creation of ATP, the cell's energy currency.

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Any stimulus that, when removed after a response, strengthens the response is called a(n) positive reinforcer. negative reinforcer. unconditioned stimulus. conditioned stimulus.

Answers

A negative reinforcer is any stimulus that, when removed after a response, strengthens the response.

Final answer:

Negative reinforcement refers to the strengthening of a behavior by the removal of an undesirable stimulus after the behavior occurs. In contrast to positive reinforcement, which strengthens a behavior by adding a positive stimulus, negative reinforcement works by subtracting a negative one.

Explanation:

Any stimulus that, when removed after a response, strengthens the response is called a negative reinforcer. It is a term used in operant conditioning, a form of learning where the strength of a behavior is modified by its consequences, such as reward or punishment. The concept behind negative reinforcement is that by removing an undesirable stimulus after a behavior, that behavior will increase. For instance, if a student studies hard and as a result, the teacher cancels a scheduled test (an undesirable stimulus), the student's studying behavior might increase.

Its counterpart, positive reinforcement, refers to the addition of a pleasurable stimulus to increase the behavior. In contrast, a negative reinforcer involves removing an aversive stimulus to enforce the desired behavior. Both of these techniques aim to increase the likeliness of a behavior.

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PLEASE HELP AND HURRY WILL GIVE BRAINLIEST
Lichens result from the symbiosis between a fungus and
A. photosynthetic bacteria.
B. Euglena.
C. photosynthetic algae
D. both (A) and (C)

Answers

the answer is D. both (A) and (C)

Which type of force produces the fault in the illustration? A. compression B. tension C. shear D. skating

Answers

Which type of force produces the fault in the illustration? A. compression

Answer:

A. compression

Explanation:

I hope this helps

have a blessed day

The _______ is responsible for cellular respiration in eukaryotic cells

Answers

The Mitochondrion is responsible for respiration

Mutations are generally helpful to the organism.
a. True
b. False

Answers

they are not helpful 2 organisms

They are helpful because it’s kid of like adapting to their situation, a mutation gives the organism the anikty to stand or survive the situation they are in

A charged body may cause the temporary redistribution of charge on another body without coming in contact with it. this process is called

Answers

The answer is electrostatic induction. When a charged object is brought in close proximity to an uncharged object, Colomb forces from the charged objects causes a rearrangement of electrons and protons in the uncharged object. This gives the uncharged object polarity which is reversible when the charged object is removed.

Final answer:

Electrostatic induction is the process where a charged body induces a temporary redistribution of charge in a nearby neutral body without direct contact. This can result in an area of negative electric charge developing within the neutral body. No charges are created or destroyed; they are simply moved to different locations within the object.

Explanation:

The process described where a charged body causes a temporary redistribution of charge on another body without direct contact is known as electrostatic induction. During electrostatic induction, a charged object, when brought near a neutral object, can induce an unbalanced charge distribution within the neutral object, effectively changing its electrical condition temporarily. For example, if a positively charged rod is brought near a neutral conductor, electrons within the conductor will be attracted towards the rod, creating a region of negative electric charge near the rod, while leaving the other side positively charged. This redistribution of charge within the neutral conductor happens without any actual transfer of charge between the rod and the conductor.

Charging by induction is another term for this process. An important principle to remember is that during this process, no charges are created or destroyed; they are merely separated. The total amount of charge remains constant, adhering to the conservation of charge principle.

Which endocrine gland is indicated by the arrow?

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it is the thyroid gland

Physical assessment of a client in active labor reveals that the cervix is dilated 3 to 4 cm and 50% effaced, the fetus is in the right sacrum anterior (rsa) position, and contractions are 5 minutes apart. where should the nurse place the stethoscope to best locate the fetal heart tones?

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When the fetus's back is on the right side of the mother and the fetal sacrum is in the lower portion of the fundus, the fetus is in the right sacrum anterior position and the fetal heart can be heard in the right upper quadrant. Location b is appropriate when the fetus is in the right occipital posterior position. Location C is appropriate when the fetus is in the left sacrum anterior position. Location D is appropriate when the fetus is in the left occipital anterior position.

An adult client, diagnosed with narcolepsy, admits being embarrassed to receive this diagnosis and is adamant that no one find out about it. the nurse should respond to the client by explaining what aspect of the etiology?

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The correct answer is "this is the result of neurological factors over which you have no direct control".
Narcolepsy is a neurological condition which blocks a person's ability to control its sleep-wake cycle. Common symptoms could be bad sleep quality, hallucinations while sleeping, sudden loss of muscle strength and excessive sense of sleepiness during the day. Being a neurological condition, patients have no control over their symptoms. The causes of the disorder are unknown, only a very small percentage of the cases (10%) is considered to be familial. Specific psychological conditions, such as trauma, are suggested to play a role.

How does the compressor lubrication system differ for reciprocating and centrifugal compressors?

Answers

In a centrifugal compressor, the refrigerant and the oil systems are separate. The oil is in a separate oil sump and the oil pump powered by a separate motor. On the other hand, the reciprocating compressor is powered by the compressor shaft.

Answer:

Both the reciprocating and centrifugal compressors are the parts of refrigeration and air conditioning technology. The lubrication is provided by the pressure lubrication system in the reciprocating compressor. This system utilizes pressurized oil for lubrication. While, on the other hand, the lubrication is attained by a three-phase fractional horsepower motor and oil pump in case of a centrifugal compressor.

Derotative righting, labyrinthine righting, and parachute are all examples of:

Answers

Derotative righting, labyrinthine righting, and parachute are all examples of: postural reactions.

What do fungi have in common with animals? their cells do not store dna within the nucleus. they are all unicellular. they are heterotrophs. they make their own food from sunlight?

Answers

Answer:

Option C, they are heterotrophs

Explanation:

Both fungi and animals do not have chlorophyll with in them and thus they are not able to produce their own food from sunlight. Being unable to produce their own food, both fungi and animal depends on other organisms especially the producer for their food and nourishment. Hence, they both are heterotrophs.

Some of the animals are unicellular while there are several animals that are multi-cellular too. Hence option B is incorrect.

Also both fungi and animal have DNA with in their cells and hence option A is also incorrect.

Option C is correct

Final answer:

Fungi and animals share several common characteristics. Both are heterotrophs that rely on external organic compounds for energy, and their cells share structural similarities such as the presence of chitin and the storage of carbohydrates as glycogen. Regardless, fungi also exhibit unique traits including their role as key decomposers in the ecosystem.

Explanation:

Fungi, much like animals, are heterotrophs; they obtain their energy and carbon from complex organic compounds as they are incapable of photosynthesis. This essentially means that their mode of nutrition involves consuming and breaking down organic matter rather than producing their own nutrients through sunlight like plants do.

Furthermore, parallels can be seen in the structure of their cells. The cell walls of fungi are composed of chitin, a substance also found in the exoskeletons of arthropods, while their cells contain mitochondria and other complex internal systems such as the endoplasmic reticulum and Golgi apparatus. Like animals, fungi store carbohydrates in the form of glycogen.

However, it's important to note that, despite these similarities, fungi also demonstrate distinct characteristics. For example, fungi absorb nutrients across the cell surface and play a crucial role as decomposers in the ecosystem, helping to recycle nutrients by breaking down organic materials into simple molecules.

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Of the events listed here which comes the latest in ciliate reproduction? note: not all events in the reproduction are listed.

Answers

If the events you are referring to are:

a. cells separate

b. disintegration of micronuclei

c. mitosis of micronuclei

d. meiosis of micronuclei

e. micronuclei fuse

f. exchange of micronuclei

If we fix this in order, the first would be mitosis of the micronuclei, then the meiosis of micronuclei, then the micronuclei breakdown. Then there conjugating cells exchange micronuclei and then they fuse. Lastly the cells separate.

The answer to the question is the cells separate.

A scientist is observing an amphibian. It has brightly colored skin, four legs, sticky pads on its feet, and a long, narrow body. Which amphibian is the scientist most likely observing? a salamander because it has sticky pads on its feet a salamander because it has a long, thin body a frog because it has four legs a frog because it has brightly colored skin

Answers

i would believe that it is a salamandar because it has a long thin body

a salamander because of its loong skinny body

What are the products of noncyclic photophosphorylation?

Answers

Oxygen, NADPH (Nicotinamide Dinucleotide Phosphate) and ATP (Adenosine Triphosphate) molecules.

NADP+ is the final electron acceptor for non-cyclic photophosphorylation, which forms NADPH after it accepts the electron in NADP Reductase.
Water or H2O is broken down into Hydrogen ions and Oxygen molecules.
Hydrogen ions or H+ are pumped through the thylakoid membrane against the concentration gradient. When H+ diffuses down concentration gradient out of thylakoid through ATP synthase (which is embedded in thylakoid member), ATP is synthesised.

Hope this helps! :)

The Kingdom _____________ might be considered a "grab bag" of organisms: unicellular, multicellular, autotrophic, heterotrophic.

Answers

The answer would be Kingdom Protista

There is 6 kingdom in biology: Animalia, Plantae, Fungi, Protista, Bacteria, Archaebacteria. Kingdom Protista has a diverse kind because its member is the organism that could not be classified as Animalia, Plantae or Fungi.
Since the classification based on exclusion, Protista member has less similarity than other kingdoms. That is the reason that protista called "grab bag" kingdom.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. C) osmosis. D) a passageway.

Answers

Answer:

b) energy

Explanation:

To survive, cells require many substances to be at higher concentrations inside the cell than outside of it. This is known as active transport and requires cell energy.

The transport of materials into a cell against a concentration gradient requires energy. So the correct option is B.

What is active transport?

A kind of cellular transport where substances or materials move against a concentration gradient is called active transport. The direction of transport is from an area of lower concentration to an area of higher concentration. Thus this process requires the expenditure of energy and it uses the help of membrane proteins like the carrier proteins.

In the process of active transport, the substances like e.g. ions, glucose, and amino acids are transported across the membrane from the region of their low concentration to the region of their high concentration. Thus, the movement is against the direction of their concentration gradient.

This is why cellular energy in the form of ATP is utilized in the case of active transport. This is different from passive transport where kinetic and natural energy is utilized. ATP can be produced by the process of cellular respiration.

Therefore the correct option is B.