Measles became prevalent only with the emergence of larger urban centers, making it the "disease of civilization."
a. True
b. False
Final answer:
Measles becoming prevalent with the emergence of urban centers is true.
Explanation:
The statement that measles became prevalent only with the emergence of larger urban centers, making it the 'disease of civilization,' is True. Measles is a classic example of an infectious disease that thrives in larger populations. Measles requires a large contiguous population to keep it going, and it would not have been able to survive in smaller hunter-gatherer groups. The increase in the size and density of human populations in urban areas facilitated the spread of measles and other infectious diseases.
How does a eukaryotic plant cell store and remove waste materials?
Why is it important for plants to have mechanisms to prevent self-fertilization?
It is important for plants to have mechanism to prevent self fertilization in order to establish genetic diversity else homozygosity will be there without any variations.
What do you understand by self-fertilization ?Self-fertilization refers to the union of male and female gametes (sex cells) produced by the same person. Bisexual organisms, including the majority of flowering plants, self-fertilize.
Self-fertilization functions as an evolutionary and reproductive mechanism that enables an isolated individual to establish a local population and stabilize desirable genetic strains, but it falls short of supplying a significant amount of variability within a population, limiting the potential for adaptation to environmental change.
Therefore, mechanism to prevent self fertilization is important in plants.
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How we to prevent disease from spreading when travel?
What is the apron-like double fold of fatty membrane that hangs down in front of the intestines?
Labrador retrievers are black, brown, or yellow. in a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies. how many genes must be responsible for these coat colors in labrador retrievers?
Why is taking vitamin c ineffective at enhancing iron absorption from standard iron supplements?
Some ocean organisms produce light from chemical reactions. In which part of the ocean do these animals tend to live?
A. The Gulf Stream
B. The surface waters
C. The mesophelagic zone
D. The epipelagic zone
the answer is C) hi really hope this helps have an wonderfully amazing day/night
Which of the following best describes what happens during a cross-over event?
A. Tetrads change orientation as they line up along the center of the cell.
B. Chromatids of homologous chromosomes exchange corresponding segments. C. X and Y sex chromosomes overlap and combine together during metaphase. D. Spindle fibers overlap and attach to the wrong chromosomes during anaphase.
Answer:
b. Chromatids of homologous chromosomes exchange corresponding segments.
In cats, black fur color is determined by an x-linked allele; the other allele at this locus determines orange color. the heterozygote is tortoiseshell. what kinds of offspring would you expect from the cross of a black female and an orange male
A blue mineral named after a word which means blue ?
a collection of specialized cells and cell products that perform a specific function
A collection of specialized cells and cell products that perform a specific function is called "tissue".
How many types of muscle tissues are found?There are three different forms of muscle tissue: skeletal muscle tissue. tissue of smooth muscles. Heart muscle tissue type of tissue is in the muscular system.
Animals with muscular tissue have a specific tissue that uses contraction to apply forces to various bodily components. Muscle fibers are long, slender cells that make up this structure. It manages an organism's mobility skeletal muscle.
Sarcoplasm is the name for the cytoplasm found inside muscle fibers. The sarcoplasmic reticulum, a network of membranes, is present there. The term "sarcolemma" refers to the membrane that encloses the muscle fibers.
A type of connective tissue that is not a connective tissue proper is Cartilage. A connective tissue is a type of tissue in the body of mammals that is used to connect or join all the other tissues in the body system. Some types of connective tissues include the dense irregular connective tissue and loose connective tissue.
Therefore, A collection of specialized cells and cell products that perform a specific function is called "tissue".
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Jerry is an alcoholic and does not eat enough food. he has been diagnosed with a vitamin deficiency. what blood disorder is the most likely a result of this deficiency? jerry is an alcoholic and does not eat enough food. he has been diagnosed with a vitamin deficiency. what blood disorder is the most likely a result of this deficiency? pernicious anemia hemolytic anemia iron-deficiency anemia aplastic anemia
Answer:
The correct answer is pernicious anemia.
Explanation:
In the given case, Jerry is most likely to suffer from pernicious anemia as he has been diagnosed with vitamin deficiency. A medical situation in which blood is low in normal RBCs count in known as anemia. One of the vitamin B-12 deficiency anemia is pernicious anemia. It is caused by an incapability to captivate the vitamin B-12 required for the body to produce an adequate amount of healthy RBCs.
The daily up-and-down movements of organisms in the ocean's water column is called _______.
The movement of organism in the ocean’s water column is called vertical migration, in the daily up-and-down movement. Vertical migration is the vertical movement or the organism along the water column in response to seasonal, ontogenic, and daily changes. Diel is the most important type of vertical migration.
PSYCHOLOGY Assisting in coordination of movement, sleep, respiration, appetite, and facial sensations are functions of the __________. A. pons B. medulla C. cerebellum D. brainstem
What is ability of organisms to survive and reproduce on the range of our men to circumstances?
Farmer Brown can harvest 2 1/3 acres of corn in 1 day. how many days will it take hime to harvest 10 1/2 acres of corn?
The law of _____explains how alleles separate during gamete formation.
The client asks why lab work is needed prior to starting the medication, nitrofurantoin. what information can the nurse provide to the client?
The lab work is required prior to starting the medication of nitrofurantoin because to prevent any kind of organ damage.
Further Explanation:
Antibiotics are discovered by Alexander Fleming. They are clinically significant in eradicating microorganisms on the eukaryotic surfaces by disrupting the peptidoglycan of the bacterial cells and not harming the host cells. Nitrofurantoin is considered an antibiotic that mainly targets the bacteria in the body. This medication is used to treat urinary tract infections. During the pregnancy period, the prescription of this medicine is not given. This medicine is passed into breast milk and affects the baby. This medicine should be avoided when an individual is suffering from:
• Kidney disease
• Diabetes
• Anemia
• Electrolyte imbalance
To prescribe, the nitrofurantoin doctor done some lab tests to check the allergy of this medicine. Also, to check any kind of kidney problem; this is because, in kidney damage, nitrofurantoin should not be administrated.The nurse should check the further consequence of this drug on an individual.
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Answer Details:
Grade: High School
Subject: Biology
Topic: Antibiotic
Keywords:
Kidney damage, electrolyte balance, problem, lab, nurse, prior, damage, nitrofurantoin, drug, avoid, medication, doctor, lab test.
The phylum __________ contains both invertebrate and vertebrate groups.
The phylum Chordata contains both invertebrate and vertebrate groups, including fish, amphibians, reptiles, birds, and mammals.
Explanation:The phylum Chordata contains both invertebrate and vertebrate groups. Vertebrates, which have a backbone, are a subgroup within the phylum Chordata. They include organisms such as fish, amphibians, reptiles, birds, and mammals. In addition, the phylum Chordata also includes two clades of invertebrates known as Urochordata (tunicates) and Cephalochordata (lancelets).
Phylum Chordata encompasses animals with distinct features: a notochord, dorsal nerve cord, pharyngeal slits, and a post-an-al tail. Thus, these traits are evident in diverse subgroups like mammals, birds, fish, and amphibians. Chordates exhibit remarkable anatomical diversity, adapting to various environments while sharing a common evolutionary ancestry.
Consider the diagram. mc006-1.jpg Which postulate of the kinetic-molecular theory best describes the event in the diagram? Most of the volume of a gas is empty space. All collisions between particles are perfectly elastic. There is no force of attraction or repulsion between gas particles. The average kinetic energy of particles depends only on temperature.
Answer:
The answer is B
Explanation:
How does incomplete dominance differ from a dominant recessive pair of alleles?
Where does translation take place? where does translation take place? golgi apparatus ribosome endoplasmic reticulum nucleus?
Translation takes place in ribosomes located in the cytoplasm of the cell.
Explanation:Translation is the process of protein synthesis where information coded in the mRNA is used to produce a specific amino acid sequence. It takes place in the ribosomes located in the cytoplasm of the cell. Ribosomes are composed of rRNA (ribosomal RNA) and proteins, and they are responsible for reading the mRNA and assembling the amino acids into a polypeptide chain.
Mendel had no understanding of DNA as the genetic material, yet he was able to correctly predict how traits were passed between generation. What does Mendel’s work show about the value of scientific observation
On earth, why is carbon, which is found in the carbon family, especially important?
Carbon is crucial for living organisms as it is present in all organic molecules and plays a primary role in the structure of macromolecules. Its importance stems from its bonding properties and energy-containing compounds. However, the burning of fossil fuels has contributed to increased carbon dioxide levels and environmental issues like climate change.
Explanation:Carbon is one of the most important elements to living organisms, as shown by its abundance and presence in all organic molecules. It is the bonding properties of carbon atoms that are responsible for its important role. Carbon is present in all organic molecules, and its role in the structure of macromolecules is of primary importance to living organisms. Carbon compounds contain energy, and many of these compounds from plants and algae have remained stored as fossilized carbon, which humans use as fuel. Since the 1800s, the use of fossil fuels has accelerated, resulting in an increase in carbon dioxide in the atmosphere, leading to environmental concerns such as climate change.
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If a mutation occurs such that photosystem ii no longer functions as efficiently as it should, what might be most directly affected?
Out of the following given choices;
a) The amount of oxygen produced
b) The rate of ATP synthesis by ATP synthase in the chloroplast
c) The rate at which NADPH is produced
d) The rate at which the protons are transported into the thylakoid
The answer is; A
The photosystem captures energy from sunlight and uses it to split a water molecule. After splitting the water molecule (by taking an electron), the protein complex transports the electron to plastoquinone. The splitting of water molecules results in evolving of oxygen molecules. The hydrogen is what is used to reduce carbon dioxide to glucose.
The amount of oxygen to be generated will be affected directly.
Further Explanation:
Photosystem is responsible for photosynthetic light reactions of algae, bacteria, and plant.
There are 2 photosystems:
Photosystem-1 Photosystem-2
Photosystem-1 plays the main role and utilizes light energy in order to generate high energy carriers such as NADPH as well as ATP. They use p700 photoreceptor and they absorb light of longer wavelength. In this photolysis of water does not occur.
On the contrary, photosystem-2 refers to the protein complex found in the light-dependent reactions of the oxygenic photosynthesis. They present in the thylakoid membrane of the plants, cyanobacteria, and algae. They absorb the shorter wavelength of light. In photosystem 2 photolysis of water occur.
The photosystem absorbs the energy from the sunlight and utilizes it to break the water molecule. After this, the protein complex sends the electron towards the plastoquinone. The breaking of the water molecules leads to the evolution of oxygen molecules. The water is what is utilized to lower the carbon dioxide to a glucose molecule.
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Answer Details
Grade: High School
Subject: Biology
Chapter: Photosynthesis
Keywords:
Oxygen, photosynthesis, photosystems 1, photosystem 2, water molecule, carbon dioxide, glucose, evolution, sunlight, hydrogen.
The mineral necessary for the regulation of blood and body fluids is
After leaving the stomach, chyme passes into the first segment of the small intestine called the ________
After leaving the stomach, chyme passes into the first segment of the small intestine called as the duodenum. Most of the food is absorbed in this region of small intestine of the digestive system.
What is Digestion?
Digestion is the process of breakdown of the large insoluble food molecules into small water-soluble molecules which helps in absorbing the food particles into watery blood plasma. In some organisms, the smaller water-soluble substances are absorbed through the small intestine into the blood stream directly.
The small intestine makes all the digestive juices which mixes with the bile and pancreatic juice to complete breakdown of complex compounds such as proteins, carbohydrates, and fats. Bacteria present in the small intestine make some of the enzymes required in the digestion of carbohydrates.
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What is the most common blood type in the u.s. population?
Where else is amylase secreted in the digestive system?