Prokaryotic cells are ___ and do not have a nucleus.
Answers
Answer:
unicellular
Explanation:
Prokaryotic cells are unicellular and do not have a nucleus
Related Questions
Some vitamins are mostly found in animal-based foods, while some vitamins are abundant in plant-based foods. The best source of vitamin C is ____ , while ____ is naturally rich in vitamin B12. First blank: cheddar cheese, strawberries, lentils Second blank: fish, broccoli, peanut butter
Answers
Answer:
I did this for my test and had them correct
1. strawberries
2. fish
Explanation:
As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12. The correct option for first blank is B, and for second one is A.
What are vitamins?A vitamin is an organic molecule that is an essential micronutrient that an organism requires in small amounts for proper metabolism function.
Fat-soluble vitamins are stored in the liver, fatty tissue, and muscles of the body. Vitamins A, D, E, and K are the four fat-soluble vitamins.
Water-soluble vitamins do not accumulate in the body. Vitamin C and all of the B vitamins are among the nine water-soluble vitamins.
As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12.
Thus, the correct option for first blank is B, and for second one is A.
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2. Sam and Jerry are having a discussion in their Environmental Science class. Sam
says that abiotic factors determine what biotic factors can be in an ecosystem. Jerry
says that biotic factors determine what abiotic factors can be in an ecosystem. Who
is correct? Use an example to support your answer. (2 points)
Answers
says that abiotic factors determine what biotic factors can be in an ecosystem. Jerry
Which area is the site of impaired blood flow for a patient who has a mitral valve disorder?
1
Vena cava and right atrium
2
Left atrium and left ventricle
3
Right atrium and right ventricle
4
Right ventricle and pulmonary artery
Answers
A mitral valve disorder affects the mitral valve, which is located between the left atrium and the left ventricle of the heart. The correct answer is:Left atrium and left ventricle.
This valve disorder the flow of blood from the left atrium into the left ventricle. When the mitral valve is impaired, it can lead to backflow or regurgitation of blood from the left ventricle back into the left atrium.This can result in impaired blood flow within the left side of the heart, affecting the left atrium and left ventricle.
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Which process turns glucose into energy?
Breathing
Cell division
Cellular respiration
Photosynthesis
Answers
Answer:
cellular respiration
Explanation:
Identify Organelles in an Animal Cell
Answers
Answer:
A- Nucleus
B- Lysosome
C- Ribosomes
D - Centrioles
Explanation:
Got it right on edge2021
The cell organelles in an animal cell are Label A: Nucleus, Label B: Lysosome Label C: Ribosomes, and Label D: Centrioles.
Digestive enzymes found in lysosomes break down waste products from cells as well as foreign objects. They are essential for the recycling of cellular parts and preserving cellular homeostasis.
Ribosomes can be found either bound to the endoplasmic reticulum or floating freely in the cytoplasm. They interpret the messenger RNA (mRNA)-encoded genetic instructions and produce proteins in accordance.
Centrioles are essential for the development of the mitotic spindle, which helps separate the chromosomes during cell division.
Additionally, they play a role in the development of cilia and flagella, which are critical for some cell types' ability to move and perform sensory tasks.
Thus, the answers are nucleus, lysosome, ribosome, and centriole respectively.
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Explain the disadvantages of the following characteristics of water injection in waterflooding project: (a) Suspended solids (b) Oxygen content (c) Bacteria content
Answers
Water injection is a widely used method in many waterflooding projects in order to maintain the reservoir pressure and improve oil recovery. However, it also has some disadvantages due to suspended solids, oxygen content, and bacteria content.
Suspended solids are tiny particles of matter that are suspended in the water that are either organic or inorganic in nature and can come from a variety of sources such as oil and gas production, drilling operations, and industrial processes. The disadvantages of suspended solids in water injection in waterflooding projects are:
They can cause formation damage by plugging the reservoir pore space and reducing the permeability of the rock and can also cause problems with the injection equipment by clogging the filters and reducing the flow rate of the injected water.
Oxygen is a highly reactive gas that can cause corrosion and degradation of the reservoir rock and the injection equipment. The disadvantages of oxygen content in water injection in waterflooding projects are :
It can cause the formation of scale and other deposits that can reduce the permeability of the rock and increase the pressure drop across the reservoir. It can also cause the formation of emulsions and other undesirable fluid properties that can reduce the efficiency of the waterflooding project.
Bacteria are microorganisms that can grow and multiply in the water and the reservoir rock. The disadvantages of bacteria content in water injection in waterflooding projects are:
They can cause corrosion of the injection equipment and the reservoir rock and can also cause fouling and plugging of the reservoir pore space, reducing the permeability of the rock and reducing the efficiency of the waterflooding project.
Water injection or water flooding project:
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In terms of shape, a Caucasian person has ______ orbits, an African-American person has ______ orbits, and an Asian person has ______ orbits.
Answers
Answer:
The right approach is "Oval, Square and Rounded".
Explanation:
There are two fairly different definitions of Caucasian, as well as the discrepancy between these often causes individuals to listen that another one of the definitions is wrong. A generally rounded skull, narrow steep slopes eye orbits, as well as a tear-shaped respiratory aperture provide Caucasian skull characteristics.So that the above is the correct answer.
Johnny is looking at cells taken from plant roots. Which organelle that is
usually found in all plant cells is he not likely to find? *
A cell wall
B plasma membrane
C nucleus
D chloroplasts
Answers
Explanation:
Chloroplasts are what give plants their green pigment. This pigment is not found in root systems and is therefore missing from the root cells.
How does all important energy molecules, ATP , fit into cellular respiration ? Explain.
Answers
Cellular respiration is a metabolic process that takes place in cells that converts the energy stored in the chemical bonds of food molecules into a form of energy that the cell can use to perform work, including the production of ATP.
What is cellular respiration?In cellular respiration, food molecules such as glucose are broken down through a series of enzymatic reactions that release energy, and energy is used to produce ATP molecules through a process called oxidative phosphorylation, which occurs in the mitochondria of the cell and involves the transfer of electrons from energy-rich molecules to oxygen.
Hence, It is a metabolic process that occurs in cells and converts the energy stored in the chemical bonds of food into a form of energy that the cell can use to perform work, such as ATP production.
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Based on the materials of the course, which of the following statements is true?
Select one:
a. Based on OSHA requirements, it is more likely to make human immunodeficiency virus (HIV) vaccination mandatory for the housekeeping staff.
b. OSHA requires the front desk staff to be vaccinated against human immunodeficiency virus (HIV).
c. OSHA requires all staff in large hotels to be vaccinated against human immunodeficiency virus (HIV).
d. OSHA requires food and beverage department’s staff to be vaccinated against human immunodeficiency virus (HIV)
Answers
Based on the materials of the course, it is more likely to make human immunodeficiency virus (HIV) vaccination mandatory for the housekeeping staff is the correct statement. OSHA stands for Occupational Safety and Health Administration. Option A is correct
OSHA is the United States federal agency that is in charge of enforcing laws that deal with workplace safety, health, and occupational health. OSHA was established in 1971, and its primary mission is to ensure that employers are providing their employees with a safe and healthy working environment. OSHA has a wide range of regulatory powers that are used to ensure that employers are in compliance with the laws and regulations that deal with workplace safety and health.
Human immunodeficiency virus (HIV) vaccination is significant as HIV is a virus that damages the immune system, which is responsible for defending the body against illness. Without proper treatment, HIV can develop into acquired immunodeficiency syndrome (AIDS).There is currently no cure for HIV, but antiretroviral therapy (ART) is a treatment that can help manage the virus.
Vaccinations for Hepatitis B and HIV are now available to employees who work in settings where they may be exposed to infectious diseases. These vaccines can help reduce the risk of exposure to infectious diseases in the workplace. Therefore, it is more likely to make human immunodeficiency virus (HIV) vaccination mandatory for the housekeeping staff. Option A is correct
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matured fibrous tissue seen 2 weeks after an injury appears whiter or paler at the surface of the repaired injury for what two reasons?1. increased granulation tissue2. increased numbers of collagen fibers3. enlarged lymphocyte population4. decreased vascularityfrictional keratosis except one. which is the exception?
Answers
The two reasons why matured fibrous tissue seen 2 weeks after an injury appears whiter or paler at the surface of the repaired injury are increased numbers of collagen fibers and decreased vascularity. The correct options are 2 and 4.
When an injury occurs, the body initiates the healing process, which involves the formation of granulation tissue, a type of immature connective tissue that is rich in blood vessels and inflammatory cells.
Over time, the granulation tissue is replaced by mature fibrous tissue, which is characterized by an increased number of collagen fibers and a decreased number of blood vessels. This change in tissue composition leads to a paler or whiter appearance at the surface of the repaired injury.
Frictional keratosis is a condition that occurs due to prolonged friction or pressure on the skin or mucous membrane, leading to the formation of thickened, calloused tissue. The exception in this statement is that it is not related to the appearance of matured fibrous tissue after an injury. Hene, 2 and 4 are the correct options.
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what caused the abolishment of the French monarchy
Answers
Answer:
Food Shortages and Economic crisis
Explanation:
Food shortages and economic troubles sparked the French Revolution in 1789. In August 1792, King Louis and Queen Marie-Antoinette were imprisoned, and the monarchy was abolished in September. Louis was tried and sentenced to death by a slim majority in January 1793.
Albinism results from mutations in an individual's DNA. Explain how that ultimately results in an non-functional protein. Use all of the terms from your flowchart above in your explanation. Also include locations and any enzymes involved. **TERMS USED: "transcription, translation, amino acid(s), protein, gene, mRNA, tRNA, trait "
Answers
Answer:
Please find the explanation below
Explanation:
Albinism which is a condition characterized by the lack of skin pigment is caused by a mutation in the nucleotide sequence that encodes the melanin protein. However, this mutated gene undergoes TRANSCRIPTION into a mutated mRNA sequence, and subsequently undergoes TRANSLATION into a mutated amino acid sequence.
The amino acid sequence results in a non-functional protein as the nucleotide sequence of the original DNA has been altered. This non-functionality of the mutated protein results in ALBINISM TRAIT.
ASAP Becky made the diagram below to represent ultraviolet rays, radio waves, gamma rays, and infrared rays based on their properties.
Four waves labeled A, B, C, and D are shown. Wave A has the greatest gap between its consecutive peaks and Wave B has the least gap between its consecutive peaks. Wave C has the second greatest gap between consecutive peaks, followed by Wave D.
Which wave best represents ultraviolet rays?
Wave A
Wave B
Wave C
Wave D
Answers
The best wave represents ultraviolet rays is Wave B.
Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
How harmful are UV rays?Exposure to UV rays can cause early ageing of the skin and signs of sun harm such as creases , leathery skin, liver bumps, actinic keratosis, and solar elastosis.
UV beams can also generate eye pains. They can force the cornea to become inflamed or ignited.\
Thus, the option "B" is correct, Ultraviolet (UV) radiation is a type of non-ionizing radiation that is emitted by the sun and unnatural sources, such as tanning .
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Answer:
b
Explanation:
What is the process fats
need to undergo before
becoming readily available
energy in our body?
A. Fats must dissolve in water.
B. Fats must be broken down and
turned into phospholipids.
C. Fats must fill up with energy before
it can be exerted.
D. Fats must convert into
carbohydrates.
Answers
Answer:
l think it's C
l hope it will help you
Explanation:
please follow me
Apply your understanding of the process of muscle contraction and our ability to
coordinate smooth movements using an example (e.g., petting a dog). Include steps
from the initial nerve impulse to the muscle contraction (sliding filament theory), and
how those muscle contractions are coordinated (motor units, all-or-none principle). Use
point form
Answers
A sensory neuron in the skin sends a signal to the spinal cord via an afferent pathway, indicating that the dog is being touched.
What is a pathway ?In general, a pathway refers to a route or a course taken to reach a particular destination or achieve a specific outcome. Pathways can be physical, such as a road or a hiking trail, or metaphorical, such as a career path or a learning pathway.
In a scientific or medical context, a pathway often refers to a series of molecular or biochemical reactions that occur within a cell or an organism to perform a specific function. These pathways can include metabolic pathways, signaling pathways, and regulatory pathways, among others.
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Distinguish between smooth endoplasmic reticulum and rough endoplasmic reticulum.
Smooth endoplasmic reticulum has vacuoles attached to its surface.
Smooth endoplasmic reticulum has ribosomes attached to its surface.
Rough endoplasmic reticulum has ribosomes attached to its surface.
Rough endoplasmic reticulum has vacuoles attached to its surface.
Answers
Answer:
Rough endoplasmic reticulum has ribosomes attached to its surface.
Explanation:
Rough endoplasmic reticulum has ribosomes attached to its surface.
and smooth endoplasmic reticulum does not
Using the table on the right as a guide, answer the following questions about light-independent reactions.
Describe the process of light-independent reactions.
What are the products of light-independent reactions?
A table entitled light-dependent reactions is shown. The requirements are light, energy and water. The site is the thylakoid membrane. The process is light energy splits water and excites electrons in chlorophyll. A T P and N A D P H are produced. The products are A T P, N A D P H, and oxygen.
Answers
The products of light-independent reactions include the following:
GlucoseNADP+Water (H₂O).What is photosynthesis?Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs) convert light energy (sunlight) received from the Sun into chemical energy, in order to enable them make their food.
The stages of photosynthesis.In Science, there are (2) main reactions that make up the process of photosynthesis and these include following:
Light-dependent reactions.Light-independent reactions.What are light independent reactions?Light independent reactions can be defined as a type of photosynthetic reaction that occurs in the stroma of the chloroplasts and it requires the following necessary inputs:
Carbon dioxideAdenosine triphosphate (ATP)NADPHAdditionally, NADPH, adenosine triphosphate (ATP), and oxygen are the outputs (end products) of photosynthesis.
In this context, we can reasonably infer and logically deduce that glucose, water (H₂O), and NADP+ constitute the products of every light independent reactions.
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Owhead whales have traditionally populated the frozen arctic seas. now, orcas are moving in. what advantage did the bowheads have over the orcas when the sea ice extent was greater
Answers
Bowhead whales lack a dorsal fin so they can come up from the sea more easily.
What are dorsal fins?
Dorsal fins are a type of fin located on the back or top of many types of fish and some marine mammals. They provide stability and help the animal move through the water. They also act as a rudder, allowing the animal to turn in the water.
The lack of a dorsal fin helps the bowhead whale move more easily through the water, especially when coming up from the sea. The bowhead whale has a thick layer of blubber, which makes it difficult to move through the water when it is carrying a large amount of body weight. Without the dorsal fin, the bowhead whale can swim more smoothly and efficiently, enabling it to come up from the sea more easily.
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What phenomenon accounts for the blueshift of a star moving toward Earth?
Answers
Remember, prophase, metaphase, anaphase, and telophase represent the stages of Mitosis - not
Interphase. Which stage of mitosis takes the least amount of time?
Answers
Answer:
Why is anaphase the shortest stage? The kinetochore microtubules shorten as the chromatids are pulled toward opposite poles, while the polar microtubules subsequently elongate to assist in the separation. Anaphase typically is a rapid process that lasts only a few minutes, making it the shortest stage in mitosis.
25-year old woman is suffering from facial paralysis and exhibits ptosis (dropping of upper eyelid). injury to which of the following nerves would result in ptosis.
Answers
Ptosis is a condition that causes the upper eyelid to droop down over the eye. This condition is also known as blepharoptosis.
An injury to which of the following nerves would result in ptosis in a 25-year-old woman who is suffering from facial paralysis is the oculomotor nerve. Facial paralysis is a condition in which the muscles on one side of the face become weak or paralyzed. The affected individual may be unable to control the facial muscles on the affected side. This can lead to facial drooping, difficulty smiling, and difficulty closing the eye on the affected side.What is ptosis?Ptosis is a condition that causes the upper eyelid to droop down over the eye. Ptosis can be caused by a variety of factors, including aging, injury, and nerve damage. Ptosis can make it difficult for individuals to see clearly, especially if the drooping eyelid covers a portion of the eye. In severe cases, ptosis can cause vision problems.
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viruses are capable of converting into a(n) choose one: a. virion, an intracellular replication complex, and an integrated part of the host genome. b. virion, a phage, and a plaque. c. phage, a plaque, and an oncogene. d. intracellular replication complex, a prophage, and a prion.
Answers
The virion, an intracellular replication complex, and an integrated part of the host genome.
The correct answer is A.
Describe the genome:All of an organism's genetic data is included in its genome. Nucleotide sequences from DNA make up its structure. The additional functional portions of the genome, along with any junk DNA that may be present, as well as protein-coding and non-coding genes, are all included in the nuclear genome.
How would you define a genomic example?The physical traits of an individual are an example of a genome. an organism's whole genetic makeup, including all of its genes and DNA sequences, is stored in its chromosomes.
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if scientist discovered that the mountain ranges in north america and Eurasia were made of sinilar rock but of different ages, would this still support continental drift theory?
Answers
Answer: B
Explanation: Edge
what would happen to plants if animals didn’t breathe
Answers
A) What is the difference between bonding forces holding compounds together and other attractive forces? What types of chemical bonding and intermolecular forces do the materials have?
Answers
Answer: Chemical bonds, or bonding forces, hold compounds together, while intermolecular forces between molecules are examples of other attractive forces.
Intermolecular forces include hydrogen bonds, dipole-dipole interactions, and London dispersion forces, whereas chemical bonds are composed of covalent, ionic, or metallic connections.
Explanation: Chemical bonds between atoms are created by bonding forces, which hold molecules together. Covalent, ionic, or metallic bonds are created as a result of these forces, which include the sharing or transfer of electrons. Atoms exchange electrons to produce covalent bonds, oppositely charged ions share electrons to form ionic bonds, and metals share electrons delocalized in a metal lattice to form metallic bonds.
On the other hand, chemical bonds are more powerful than the attraction forces that hold molecules together, known as intermolecular forces. They include London dispersion forces, which result from transient changes in electron distribution, dipole-dipole interactions between polar molecules, and hydrogen bonding, which happens when hydrogen is bound to highly electronegative elements like oxygen or nitrogen.The physical characteristics of substances, including their boiling points, melting points, and solubilities, are strongly influenced by these intermolecular forces.
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Given this enzyme's role in glycolysis, explain why it makes sense that ATP and AMP have these effects.
Answers
Phosphofructokinase is regulated by ATP, AMP, citrate and other molecules. ATP is a negative regulator of Phosphofructokinase. Thus, If there is plenty of ATP, glycolysis does not need to make more.
What is glycolysis?Conversion of glucose into pyruvate is done by a metabolic pathway which is called as glycolysis. Free energy released in this process is used to form ATP and NADH. this pathway can take place in anaerobic conditions, that is it does not require oxygen.
This pathway is regulated by allosteric inhibition such as ATP serves as negative feedback regulation of the pathway.
Therefore, ATP plays important role in negative feedback regulation of the glycolysis.
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Why does Isaac Newton's work finally confirm the heliocentric model? ANSWER QUICKLY!!!! I will give you BRAINLEST
Answers
Answer:
The answer is by proving that gravity and inertia working together explained the motions of planets and their moons.
Explanation:
What is the name of the enzyme that fixes carbon dioxide during photosynthesis?.
Answers
Answer: Rubisco
The initial incorporation of carbon dioxide, which is catalyzed by the enzyme ribulose 1,5-bisphosphate carboxylase (Rubisco), proceeds by the addition of carbon dioxide to the five-carbon compound ribulose 1,5-bisphosphate (RuBP) and the splitting of the resulting six-carbon compound into two molecules of PGA.
Explanation:
Which of the following best describes the result of meiosis? Select 3 that apply.
WILL GIVE BRAINLIEST
Answers
The result of the process of meiosis is that it produces increased genetic diversity due to crossing over.
The correct option is C.
What is meiosis?Meiosis is a type of cell division that results in the production of gametes or sex cells. Hence. meiosis is a form of cell division that occurs only during sexual reproduction.
During meiosis, the cells of the parent organism which have a pair of chromosomes or diploid number or 2n of chromosomes divide to produce the gametes which have the haploid number or n number of chromosomes.
Hence, the sex cells or gametes produced can fuse to form a zygote that has a pair of chromosomes or diploid number or 2n of chromosomes.
The process of meiosis results in genetic variation as it allows for the crossing over of genes, such that the genes of the offspring show a variation to that of the parents as well as among the offspring.
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