Polar microtubules shorten during anaphase.
Late a is characterized by shortening of the kinetochore microtubules, while anaphase b movements lengthen the pole microtubules. This will move the two spindle poles further apart.
On the other hand, changes in microtubule length provide a mechanism for chromosome movement. more specifically, in the first part of anaphase, sometimes called anaphase A, the kinetochore microtubules shorten and pull the chromosome towards the spindle pole.
Chromosome segregation occurs in two stages. In anaphase a, the chromosomes move towards the spindle poles, and in anaphase b the spindle poles separate from each other. anaphase a requires chromosome-to-pole shortening of microtubules, whereas anaphase b requires this pole-to-pole shortening, resulting in microtubule lengthening.
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The ________, in the chloroplast, contains photosynthetic pigments in its membrane.
The thylakoid membrane, in the chloroplast, contains photosynthetic pigments in its membrane.
What is photosynthesis?Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities. The name photosynthesis comes from the Greek words pho, "light," and synthesis, "putting together," and refers to the process through which carbon dioxide and water are converted into molecules of carbohydrates, such as sugars and starches. Photoautotrophs are creatures that perform photosynthesis, including most plants, algae, and cyanobacteria. The majority of the energy required for life on Earth is produced and maintained by photosynthesis, which is also substantially responsible for producing and maintaining the oxygen content of the atmosphere.
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The nucleus of each human cell contains ________, which are threadlike structures made up of deoxyribonucleic acid (dna).
Answer:
Chromosomes
Explanation:
Organic material in soil contains a substance called "humus". Humus is defined as
A. dark organic matter that forms from sand
B. dark organic matter that forms from granite
C. dark organic matter that forms when plants and animals decay
Answer:
C. dark organic matter that forms when plants and animals decay
Why is it important to maintain the ph of blood and tissue fluids within normal limits?
It is important to maintain the ph of blood and tissue fluids within normal limits because the structure and function of macromolecules are pH sensitive, and even little variations from normal pH can cause metabolic processes to shut down.
Tissue fluid is found in the spaces around cells. It comes from substances that leak out of blood capillaries (the smallest type of blood vessel). It helps bring oxygen and nutrients to cells and to remove waste products from them.
The two forms of connective tissue in this subcategory are blood and lymph. Both are fluid rather than solid, and neither has the network of extracellular protein fibers that other types of connective tissue have.
Diffusion and filtration processes create tissue fluid from plasma. This fluid fills the intracellular space and serves as a link in the transmission of nourishment, gases, and metabolic end products between blood capillaries, tissue fluid, and lymph.
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Do pregnant women eat the same food as builders. backup ur answer/reason
Answer:
no they don"t they eat different food
Explanation:
they eat different food that they are craving
__________________________ is a hybrid of pure and applied science. academic research technoscience industrial research biotechnology
Technoscience is a hybrid of pure and applied science. academic research technoscience industrial research biotechnology.
Belgian philosopher Gilbert Hottois first used the term "technoscience" in the late 1970s. Sociologist Bruno Latour has used it to investigate the role of scientists and engineers in society as well as the relationship between technology and people.The term "technoscience" describes the close ties that exist in modern scientific research and development (R&D) between fields that were once thought to be fundamentally distinct from one another: technology and science. This distinction was made by philosophers. The degree of the relationship between science and technology as well as the focus on technology that the term techno(-)science places on it varies.Additionally, the majority of scientists and philosophers of science still view technology as applications and results of scientific advancement. Nevertheless, they acknowledge that technology's effectiveness and success help science to be realistic, objective, and universal.learn more about technoscience here: https://brainly.com/question/5043267
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Oligo polysacchoride importance in blood transfusion and tissue organt transplant
In the near future, the benefits of biofuel production may be enjoyed while reducing the impact on the global production of grain. One such promising approach is to In the near future, the benefits of biofuel production may be enjoyed while reducing the impact on the global production of grain. One such promising approach is to:____.
a. use the large amounts of animal wastes to produce ethanol.
b. produce biofuels from grasses and timber wastes instead of from corn. c. find ways to convert oil and natural gas into ethanol. d. bioengineer cattle and goats to produce ethanol in their milk.
One way to reduce the impact of the of the production of biofuel on grain security is to use the large amounts of animal wastes to produce ethanol.
What is biofuel?The term biofuel refers to a fuel that is produced from living things. This advent of biofuels have shed light on an emerging source of clean energy and renewable energy. The challenge that we have to face in the production of biofuel /is its impact on grain.
Thus, one way to reduce the impact of the of the production of biofuel on grain security is to use the large amounts of animal wastes to produce ethanol.
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You collect individuals from different allopatric populations of a leaf-eating beetle. In the laboratory, you conduct mate-choice experiments to assess levels of reproductive isolation among beetles from different populations. Assuming that ecological speciation occurred in the wild, which pattern should you expect?.
Less reproductive isolation among populations that share similar habitats.
What is habitat reproductive isolation?
Habitat isolation is the term for when populations of a species move to a new habitat and settle in an area where they no longer overlap with other populations of the same species. When reproduction with the parent species stops, a new group emerges that is genetically and reproductively independent.What factors affect reproductive isolation?
The members of different species will be reproductively isolated by any factor that prevents potentially viable individuals from coming together. Different habitats, physical barriers, and a variation in the timing of sexual development or flowering are examples of the different types of barriers that can result in isolation.Learn more about reproductive isolation
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How do poriferans and earthworms differ in their mobility? how might mobility have influenced their modes of reproduction?
Poriferians can't move for the most part. Earthworms area ble to move by wiggling and pulling their body forward and utilizing the soil int he mobvement.
Porifera are the pore bearing multicellular organisms. Earthworms belong to annelida. Earthworm crawling movement is caused by the action of muscles in the body wall. Its lengthen and shorten the body in wavelike motions. They are capable of creeping along substrata via organizational plasticity.
Earthworms are monoecious or hermaphrodites which contain both male and female reproductive organs, they reproduce cross -fertilization. Poriferans reproduce asexually and sexually ,by hermaphroditic and produce eggs and sperm at different times.
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The pituitary hormone that controls the release of glucocorticoids from the adrenal cortes is?
Adrenocorticotropic hormone (ACTH),controls the release of glucocorticoids from the adrenal cortex .
ACTH stimulates the adrenal cortex to produce glucocorticoids and adrenal androgens. Glucocorticoids, such as cortisol, function by maintaining blood glucose levels during fasting, preparing the body during physical and emotional stress, preventing inflammation, and suppressing the immune system.
Glucocorticoids are secreted by the middle region of the adrenal cortex. The principal glucocorticoid is cortisol, which increases blood glucose levels. The third group of steroids secreted by the adrenal cortex is the gonadocorticoids, or sex hormones. These are secreted by the innermost region.
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What can you conclude about the susceptibility of the bacteria to the antibiotics?
Susceptibility refers that they can not grow if drug is present . Antibiotic is effective against the bacteria. Resistant means the bacteria can grow even if the drug is present and this sign is an effective antibiotic.
The antibiotic susceptibility testing are based on measuring the inhibition of growth of bacteria. Average time which requires to obtain result are 18- 24 hours for rapid system.Antibiotic sensitivity test can help in finding that which antibiotic is more effective in treating infection accordingly.
Antimicrobial susceptibility test is very significant bacterial isolates and there goal of testing is to detect possible drug resistance in common pathogen to assure susceptibility to drug of choice for particular infections.
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The pronunciation of the anatomic structure that conducts impulses to and from the brain and initiates reflex action to sensory information is:_________
The pronunciation of the anatomic structure that conducts impulses to and from the brain and initiates reflex action to sensory information is the spinal cord.
The spinal cord is a lengthy band of tissue that resembles a tube. It ties your brain and lowers it back together. Your spinal cord relays nerve messages back and forth from your brain to your body. You can experience feelings and move your body thanks to these nerve transmissions. The protection of the spinal cord, nerve roots, and many internal organs are the spine's three primary tasks. To keep your body upright, give it balance and structural support. Enable fluid movement. The spinal cord is surrounded by cerebrospinal fluid (CSF), which is additionally protected by three layers known as the meninges (dura, arachnoid, and pia mater). The spinal column, which consists of 33 bones known as vertebrae, houses the spinal cord.Learn more about the spinal cord here brainly.com/question/16014308
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A subsurface rock layer that is composed of clay and bedrock and is an impermeable barrier to water flow would be described as a(n):_________
a. geyser
b. aquifer
c. oxbow
d. lake
e. aquiclude
A subsurface rock layer that is composed of clay and bedrock and is an impermeable barrier to water flow would be described as a(n) aquifer(option b).
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt).
The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Aquifers occur from near-surface to deeper than 9,000 metres (30,000 ft).
There are three different types of aquifers: confined, unconfined, and perched. Recharge zones are typically at higher altitudes but can occur wherever water enters an aquifer, such as from rain, snowmelt, river and reservoir leakage, or from irrigation.
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What is the ability of living things to maintain a relatively constant internal environment? metabolism homeostasis stimulus-response cellular respiration
The tendency to maintain a stable, relatively constant internal environment is called homeostasis.
Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment.
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
In contrast, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
The concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. If these values get too high or low, person might end up getting very sick.
Therefore, the tendency to maintain a stable, relatively constant internal environment is called homeostasis.
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What is the second step upon discovery of an unauthorized disclosure (ud) incident?
The second step upon discovery of an unauthorised disclosure (ud) incident is "report".
What is unauthorised disclosure (ud)?The transmission or transferal of regulated or unclassified information to the an unauthorised recipient is known as an unlawful disclosure, or UD.
The unauthorised disclosure (ud) can be prevented by following steps:
Security updates fix flaws in software, software platforms, drivers, and other components that hackers could use to access your machine and your data.An incursion can be dealt with faster if you catch it early enough. Although prevention is crucial, keeping an eye on user behavior, login attempt, logging, as well as other activity can also give you valuable information about how secured your system is.The practice of monitoring and evaluating network or system activity for potential signals of intrusion incidents, such as impending threats, policy violations, or threats, is known as intrusion detection.The concept of privileges (POLP) establishes a minimum range of user rights that give users access to only those resources they require to carry out their roles.To know more about unauthorized disclosure, here
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Which of the following is an alternative energy source?
Owind
O geothermal
O solar
O all of the above
The ophthalmologic term describing a fibrous growth of conjunctival tissue that extends onto the cornea is termed:_______
The ophthalmologic term describing a fibrous growth of conjunctival tissue that extends onto the cornea is termed pterygium.
A pterygium is a growth of the conjunctiva or mucous membrane that covers the white part of your eye over the cornea.
The cornea is the clear front covering of the eye. This benign or noncancerous growth is often shaped like a wedge causing a disturbance of vision.
A pterygium, also known as surfer's eye. It can be only treated by a surgery. It is preferable to remove the pterygium before it grows across the cornea, otherwise, it may scar the cornea and cause permanent vision problems.
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Which of the following is NOT applicable
in the United States?
A. National Oceanic and Atmospheric Administration
(NOAA)
B. Registration, Evaluation, Authorisation and Restriction
of Chemicals (REACH)
C. National Park Service (NPS)
D. Occupational Safety and Health Administration (OSHA)
What are articulations? junctions in the body that connect organ to bone junctions in the body that connect muscle to nervous tissue junctions in the body that connect bone to bone junctions in the body that connect muscle to organ
Junctions in the body that connect bone to bone
A joint, sometimes referred to as an articulation, is where two or more bones come together. The majority of joints only have one articulation. The names of two bones are included in each articulation (or sockets).
What is a Joint or articulation ?Bones are connected through joints, often referred to as articulations. They enable specialised movement while while giving the skeletal system stability.
Histologically, according to the predominant kind of connective tissue, joints can be categorised. i.e., synovial, fibrous, and cartilaginous.Movement, like that of the limbs, and stability, like that of the skull's bones, are both made possible by joints.Learn more about Joint or Articulation here:
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Which is the least likely reason that pigs have been chosen as donors for humans in the process of
xenotransplantation?
O Pigs are free of known diseases.
O Pigs are cost-effective to raise.
• Pigs have the same DNA as humans.
• Pigs are quick breeding.
Which component of amino acids accounts for the differences in their properties?
The Alkyl group (R) is a component of amino acids accounts for the differences in their properties.
An amino acid contains an Amino group, Carboxyl group, H atom and an Alkyl group. Amino group, Carboxyl group and H atom are common for all amino acids. Alkyl group(R) is unique for every Amino acid. It differs from an amino acid to other amino acid.
This provides unique property to every protein structure as well since amino acids make a polymer of proteins. The alkyl group in amino acid can be Carbon containing, Ring containing, Amino group or a carboxyl group as well.
If an amino group is added in place of an alkyl group or with an alkyl group then the amino acid becomes basic in nature.
Similarly, if carboxyl group added in place of an alkyl group or with an alkyl group then the amino acid becomes acidic in nature.
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A mutant p53 gene can lead to the production of a ______, which in turn results in ______
A "faulty transcription factor" produced by a mutated p53 gene, prevents the transcription or translation of a polypeptide that prevents cell proliferation.
Tumor suppressor,p53 gene:
The p53 gene, a tumor suppressor is frequently inactivated during the tumorigenic process. The p53 gene is often altered, producing a persistent mutated polypeptide whose development is thought to be a characteristic of cancer cells. In contrast to losing their tumor-suppressing properties, mutant p53 proteins frequently acquire new carcinogenic properties that provide cancer cells an edge in terms of both survival and proliferation. It is fascinating to note that p53 gene mutations have been linked to several stages of the multi-step malignant transformation process, each of which contributes differently to tumor start, amplification, competitiveness, and migration.Learn more about the p53 gene here:
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Which of the following is NOT a step in risk management?
A. risk assessment
B. risk reduction strategy
C. risk identification
D. refusing to reduce the risk regardless of the outcome
Answer:
D
Explanation:
reducing risk is the one of the best approach to risk management
The facial nerve (cn vii) passes through the opening in the temporal bone called the?
The facial nerve (cn vii) passes through the opening in the temporal bone called the stylomastoid foramen.
Stylomastoid foramen:The foramen between the styloid and mastoid processes of the temporal bone of the skull is known as the stylomastoid foramen. It serves as the facial canal's terminus and carries the facial nerve and stylomastoid artery. Bell's palsy may be brought on by facial nerve irritation in the stylomastoid foramen. An unexplained episode of facial muscular paralysis or weakening is known as Bell's palsy. Over the course of 48 hours, it gets worse suddenly.
The stylomastoid foramen is where the 7th cranial nerve leaves the skull and enters the parotid gland at its deep surface. The nerve splits into two major branches, the temporofacial branch, and the cervicofacial branch, right next to the parotid duct.
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Tara has two dogs. they win many of the agility competitions they enter. these competitions test a dog's ability to run, jump, maneuver around and through obstacles, and follow complex instructions. these two dogs have a litter of puppies together. which description most correctly describes these puppies? the puppies are guaranteed to win agility competitions. with training, the puppies are likely to excel at agility competitions. the puppies will be born with the ability to complete agility competitions. without training. the puppies are no more likely to succeed at agility competitions than any other dog.
With training, the puppies are likely to excel at agility competitions
Agile dogs run, jump, and dart about gracefully. Some use their athletic skills to compete in agility trials.
What is agility ?A competitive canine sporting event called an agility trial involves dogs of different breeds navigating obstacles while being scored on their speed and accuracy. The purpose of agility courses is to show off a dog's athletic prowess, degree of conditioning, and readiness to cooperate with her handler. Physical acuity and mental focus are prerequisites for competitions.
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why stomata on the leaf are found down the leaf than the upper
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Explanation:
The stomata are found down the leaf than upper the leaf because to prevent excessive water loss.How does it come? Let say the stomata are present on the plant's lower surface, they will be less exposed to the sun and more protected from the breeze. Transpiration is the loss of water through stomata, hence the lower surface has more stomata to prevent excessive water loss.
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What is the group of nutrients that build, repair, and maintain body cells? gavs
Protein is a group of nutrient nutrient used to make and repair our body cells.
The primary structural element of cells, protein, is in charge of maintaining and repairing bodily tissues. Amino acids, which serve as the basis for protein synthesis, are formed from protein.The primary structural element of cells, protein, is in charge of maintaining and repairing bodily tissues. Amino acids, which serve as the basis for protein synthesis, are formed from protein. Proteins do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.After working out, eating protein provides your muscles with the amino acids they need to recover and renew.learn more about Protein here: https://brainly.com/question/10058019
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Pyruvate dehydrogenase is regulated by feedback inhibition and covalent modification. Which molecules inhibit the pyruvate dehydrogenase complex?
ADP, NAD+, CoA-SH, and pyruvate are the molecules that inhibit the pyruvate dehydrogenase complex.
What is pyruvate dehydrogenase complex?PDC3 triggers the oxidative decarboxylation of pyruvate, resulting in the creation of acetyl-CoA, CO2, and NADH.
The PDC plays a crucial role in the oxidation of glucose by connecting the glycolytic pathway to the tricarboxylic acid cycle's oxidative pathway.
ADP, NAD+, CoA-SH, and pyruvate all inhibit it. PDK prevents glycolysis from being coupled to GO by inhibiting its target enzyme PDH.
Thus, the answer is ADP, NAD+, CoA-SH, and pyruvate .
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What age group has a larger volume of extracellular fluid than intracellular fluid?
The Infants group has a larger volume of extracellular fluid (ECF) than intracellular fluid.The bodily fluid that exists outside of the cells of a multicellular creature is referred to as extracellular fluid (ECF).
Women and obese people often have a lower percentage of total body water than lean men, which is roughly 60% (range 45 to 75% of total body weight) in healthy adults. About one-third of the body's fluid is extracellular fluid, while the other two-thirds is the intracellular fluid found inside the cells. The fluid that surrounds cells, called interstitial fluid, makes up the majority of extracellular fluid.
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