Select all that apply.
Which characteristics do prokaryotes and eukaryotes have in common?
can be single- or multi-celled
have DNA
have organelles
don't have a distinct nucleus
have a surrounding cell membrane
The common characteristics between prokaryotes and eukaryotes are: (2) have DNA; (5) have a surrounding cell membrane.
Prokaryotes are typically single-celled organisms. They lack membrane-bound organelles and only contain simple structures like ribosomes and plasmids. Prokaryotes do not have a distinct nucleus, hence their genetic material lies open in the cytoplasm. This structure of genetic material is commonly known as nucleoid.
Eukaryotes can be either single-celled or multi-celled. They have membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, etc. Eukaryotes have a true nucleus that houses the genetic material (DNA) separated from the rest of the cell by a nuclear membrane.
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More cortical space is dedicated to areas of the body that are more sensitive. this best describes the
Smokers are more susceptible to respiratory infections because
1. What is matter? (Points : 1)
Matter is anything that is made of organic substances and is found on the earth.
Matter is anything that is made of atoms and that has mass.
Matter is an element.
Matter is a compound
Answer:
Matter is anything that is made of atoms and that has mass.
Explanation:
Matter is anything that occupies space and has mass
A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass?
300 kJ because 90% is actually lost.
Why is pyruvate converted to lactate in anaerobic conditions?
The ________ is not the name of a pleistocene glacial episode in north america.
Which organelle is responsible for the production of atp?
What is the most appropriate recommendation for administering tdap to pregnant patients?
The whooping cough vaccine is harmless for the patient and the baby. Doctors and midwives who major in in caring for pregnant women approve that it is significant to be acquired throughout the third trimester of pregnancy. Adults who are 19 years old and older must only acquire one dosage of the Tdap vaccine.
What organic molecules functions to help speed up biological chemical reactions?
When the blood glucose level rises after a meal, the first organ to respond is the:
a. gallbladder.
b. kidney.
c. liver.
d. stomach.
e. pancreas?
Answer: Option E. Pancreas
Explanation:
When the blood glucose level rises after a meal, the first organ to respond is the Pancreas.
When the blood sugar levels rise, insulin is released by pancreas. Insulin released in the bloodstream helps to absorb the sugar and allows the liver to store sugar. Like this the process lowers the blood sugar level.
When blood sugar levels gets lower the pancreas are allowed to release glucagon, which allows the liver to release the stored sugar. If the blood sugar levels rise, the release of glucagon is stopped.
Hence, the correct option is Pancreas.
Traveling clot that suddenly blocks a blood vessel:
An embolus is a traveling clot that suddenly blocks a blood vessel in the body.
Explanation:A traveling clot that suddenly blocks a blood vessel is called an embolus.
Embolus is derived from the Greek word "embolos" which means wedge.
An embolus can be a blood clot, fat globule, air bubble, or foreign substance that travels through the bloodstream and gets lodged in a blood vessel, causing obstruction.
For example, if an embolism occurs in a blood vessel leading to the lungs, it is called a pulmonary embolism
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Acetylcholinesterase breaks down acetylcholine to prevent additional __________.
The acetylcholinesterase breaks down into acetylcholine in order to prevent additional firing of neurons in which may be found in the neuromuscular junction. The acetylcholinesterase is considered to be an enzyme that is usually found in the autonomic nerve, the endings of voluntary nerves and the parasympathetic involuntary nerves.
1. When potatoes are in the ground, do they swell with water when it rains? If not, how do you explain that. If so, what are the advantages or disadvantages in this adaptation?
True or false: the firing intensity of a neuron determines the intensity of the response
e spend our lives in visible light without risks to our health. Yet exposure to UV waves in sunlight can cause skin cancer. What is the BEST explanation for this?
Which of the following factors can influence advances in science and technology?
Factors like R&D, convergence, and the rate of advance influence scientific and technological progress. Biotechnology has affected our lives by advancing medical technology and improving agricultural yields. These factors have profound impacts on modern life.
Factors Influencing Advances in Science and Technology
Advances in science and technology are influenced by several factors. Here are three key ones:
Research and Development (R&D): The creativity and curiosity of researchers drive innovation. New ideas and inventions emerge from R&D efforts, creating a stream of better methods and technologies.Convergence: The coming together of various technologies to create new ones. For example, combining medical knowledge with engineering has led to advanced medical devices.Rate of Advance: How quickly new ideas are put into practice. Faster implementation of innovations can lead to rapid technological progress.Two ways biotechnology has affected our lives include:
Advancements in medical technology have allowed infertile women to bear children, impacting population growth and family dynamics.Genetic modification of food products has improved agricultural yields and altered the environment significantly.Overall, technology has deeply impacted various aspects of modern life, from improving healthcare to changing agricultural practices.
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Which description is not a property of an acid?
A. Sour taste
B. Corrosive
C. Slimy feel
D. Dissolves metals
A description that does not reveals a property of acid is a Slimy feel. Thus, the correct option for this question is C.
What are the properties of an acid?The properties of acid are as follows:
Acids have a sour taste. Acid changes the color of blue litmus red. Acids significantly react with active metals to yield hydrogen gas.They are good conductors of electricity.Thye reacts with carbonates in order to produce carbon dioxide gas.Among the options, give, sour taste, corrosive in nature, and dissolves metals in order to yield hydrogen gas are the properties of acids. But a slimy feel is a characteristic feature of strong bases such as NaOH. They are slippery and slimy in nature. Hence, a slimy feel is not a property of acid.
Therefore, the correct option for this question is C.
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How much atp is produced from a single glucose molecule in each reaction set?
When water and nutrients from the soil travel up from the roots of a plant through the stem to the leaves, they do so in which of the following structures?
Answer:
Xylem
Explanation:
Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of these is an accurate statement?
A) Atom A has more protons than Atom B.
B) Atom A has one less proton and one more neutron than Atom B.
C) Atom A has an extra nucleon compared to Atom B.
D) Atom A has one more proton and one more electron than Atom B.
Atom A has one less proton and one more neutron than Atom B, as the mass number is the same but the atomic number differs by one. Hence, option B is correct.
The correct statement about Atom A with an atomic number of 19 and mass number of 40, and Atom B with an atomic number of 20 and a mass number of 40, is that Atom A has one less proton and one more neutron than Atom B. This is because the atomic number indicates the number of protons and the mass number is the sum of protons and neutrons. Since Atom A and Atom B have the same mass number but different atomic numbers, it can be deduced that Atom A must have one less proton and consequently one more neutron than Atom B in order to maintain the same mass number of 40.
Carbohydrates and fat both
a. Can be used as an energy source by organisms
b. Can be bonded together to construct DNA molecules
c. Are made up of the glucose monomer
d. Are monomers that can be made into large polymer chains
3. Climate change (an abiotic factor) has slowly decreased habitat for the arctic seals. Predict how a reduction in habitat could change the capture efficiency of the killer whales. How would this affect the carrying capacities for both the whales and the seals?
4. If another source of prey were available to the whales, what changes in population size would you expect for the seals and the whales? (4 points)
5. In this lesson, you learned about two patterns of population growth and decline, the sigmoid and peak phenomena. Does the seal and killer whale relationship represent a sigmoid or peak phenomenon? Please provide supporting details. (6 points)
6. What are the limitations of the population dynamics lab? Is the lab activity a realistic representation of an arctic marine ecosystem? Note: Please provide detailed support for your opinion. (8 points)
A reduction in Arctic seal habitats would decrease food availability for killer whales impacting their populations and carrying capacity. A new source of prey could relieve pressure off seals and increase both seal and whale populations. The population change follows a sigmoid pattern and while the population dynamics lab is useful, it oversimplifies the real-world complexity of an Arctic marine ecosystem.
Explanation:As an impact of climate change, a reduction in Arctic seal habitats would likely decrease the food availability for killer whales, making them less effective at capturing their prey. This reduction in capture efficiency would likely reduce the carrying capacity for killer whales as fewer individuals would be able to be supported by the available resources. Similarly, with the decrease in habitat size, the carrying capacity for Arctic seals would also likely decrease.
If a new source of prey became available to the killer whales, it could potentially relieve some predatory pressure from the seals and their population size might increase. The whale population could increase as well if the new prey source is abundant.
In the context of population dynamics, the relationship between seals and killer whales seems to correlate with a sigmoid (S-shaped) pattern of growth. Initially, when resources are abundant, population growth is exponential. However, as the population reaches its carrying capacity and resources become scarce, growth slows and eventually levels off.
As an educational tool, the population dynamics lab has a few limitations. Though it simulates interactions between predator and prey, it doesn't fully capture the complexity of real-world ecosystems. In an actual Arctic marine ecosystem, multiple species are interrelated and abiotic factors also play a critical role.
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Which of the following organisms causes malaria?
Anopheles mosquitoes
Rats
Flies
Protozoan
The correct answer is option Protozoan.
Malaria is caused by the Protozoan parasite called Plasmodium. It is transmitted by mosquito female Anopheles which bites between the dusk and dawn.
It is an acute febrile illness with an incubation period of 7 days or longer. its symptoms include chills, headache, weakness, abdominal pain, et cetera.
The initial symptoms is mild but later it can be severe.
The organism that causes malaria is a protozoan. The correct option is D.
The protozoan species Plasmodium is responsible for causing malaria in humans.
Malaria is a vector-borne disease transmitted to humans through the bites of infected female Anopheles mosquitoes.
These mosquitoes serve as the vector for the Plasmodium protozoan, which enters the human bloodstream during a mosquito bite and infects red blood cells, leading to the onset of malaria.
When an infected mosquito bites a human, it injects sporozoites, which are the infective form of the Plasmodium parasite, into the bloodstream.
From there, the sporozoites travel to the liver, where they multiply and develop into merozoites.
Therefore, the correct option is D.
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Complete question:
Which of the following organisms causes malaria?
A. Anopheles mosquitoes
B. Rats
C. Flies
D. Protozoan
When water diffuses into a plant cell and builds up firm pressure that is called?
There are 20 different amino acids. what makes an amino acid different from another
The 20 different amino acids gets differ from each other by varying side chain, i.e., R group.
What are amino acids?Amino acids are compounds that form proteins when they integrate. The fundamental components of life are amino acids and proteins.
Amino acids are left over after proteins are metabolized or broken down. To help the body, the human body utilizes amino acids to start making proteins: Food is broken down.
Amino acids are organic compounds that possess amino and carboxylic acid functional groups, as well as an amino acid-specific side chain.
Amino acids differ in terms of their side chains, that are made reference to as R groups. Each amino acid's R group will have a distinct structure, electrical charge, and polarity.
Thus, this R group make the amino acids different.
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A client is en route to the emergency department after sustaining a gunshot wound to the chest. Which priority nursing action should the nurse take to prepare for the arrival of the client?
Complete paralysis of the diaphragm occurs if the spinal cord is crushed or destroyed just below the c5 region.
Which term describes the form of a gene that produces a specific trait such as eye color
Allele is the term that describes the form of a gene that produces a specific trait such as eye color.
An allele is a variant form of a gene that is situated at a certain position on a specific chromosome. Alleles influence the work of gene as they determine specific traits such as eye colour and skin colour that can be passed on from parents to offspring through sexual reproduction. Diploid organisms (organisms with one set of homologous chromosome) such as humans usually possess two alleles for a trait.
Alleles are the form of a gene that produces a specific trait such as eye color.
Further Explanation:
Alleles are defined as the different type of the same gene. DNA is composed of different nucleotides and consists of genetic information in the form of genes. Alleles can influence the function of the gene as they determine particular character such as skin color and eye color that can be inherited from parents to the offspring through sexual reproduction. If two copies of the same alleles present in an organism; its genotype is called homozygous. If two copies of different alleles are found in one single organism, its genotype is heterozygous.
The Gregor Mendel developed the inheritance laws by performing research on pea plants. He gives three main laws of inheritance in the conclusion. Three laws of Mendel are:
Law of segregation Law of independent assortment Law of dominance
According to the Law of Segregation every organism consists of two alleles for each trait, and these alleles segregate by the process of meiosis. So, each gamete consists of one allele from one parent. Thus, the eye color is represented according to the allele that is present in offspring.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Mendelian Inheritance
Keywords:
George Mendel, dominant, law, homozygous, alleles, segregation, independent assortment, heterozygous, offspring, gene, plants, nucleotide, inheritance.
In rivers and streams what causes sediment