List three things needed for microorganisms to grow and reproduce
For microorganism to grow and form a population, they require both chemical and physical requirements. The chemical requirements required are gas such as oxygen and also mineral elements. The elements that are required are nitrogen and phosphorous. The physical elements required include the temperature of the environment. According to temperature organism are classified into three groups. Psychrophilic microorganisms are found in the cold temperatures, mesophilic are the ones which are found in the moderate temperatures and the thermophilic are found in areas with high temperatures.
Microorganisms require nutrients, moisture, and an appropriate temperature range to grow and reproduce. These conditions facilitate the exchange of matter with the environment, which is vital for their life processes.
Explanation:To ensure their growth and reproduction, microorganisms require certain conditions to be met. Three crucial things they need are:
Nutrients: Microorganisms need food, just like all living organisms. These nutrients can come from various sources, depending on the type of microorganism.Moisture: Water is essential for the biochemical reactions necessary for microbial growth.Appropriate temperature: Each microorganism has an optimal temperature range that supports its growth and reproduction.By having access to these basic needs, microorganisms can exchange matter with the environment, which is critical for them to grow, reproduce, and maintain organization.
A water-treatment method in which water is filtered through a screen to eliminate chemical contaminants and microorganisms is known as a water-treatment method in which water is filtered through a screen to eliminate chemical contaminants and microorganisms is known as reverse filtration. chlorination. distillation. micron filtration.
Answer:
Option D, micron filtration.
Explanation:
Micron filtration is a process of water clarification in which waste or impure water is passed through a set of sieve which can be of any pore size depending upon the impurity type i.e the size of contaminants or micro organism
However in reverse filtration water is force to passed through a semipermeable membrane on application of pumping force. Distillation is a physical process of cleaning in which mixture is separated based on difference in boiling points and chlorination is addition of chlorine or its compounds.
Thus, option D is correct.
Why does a plant cell need a cell wall of cellulose whereas an animal cell does not?
The cell wall houses chloroplasts, which animal cells do not need.
Only animals have a cytoskeleton, which serves the same function as a cell wall in plant cells.
Plant cells receive structure from the cell wall to help them remain upright, which animals do not need.
Water and minerals are transported through plant cell walls, whereas animal cells transport water and minerals through the cell membrane.
Plant cells receive structure from the cell wall to help them remain upright, which animals do not need.
A circular or elliptical anticline structure is called a ____.
A circular or elliptical anticline structure is called a dome.
What is dome?In architecture, a dome is a hemispherical structure that developed from an arch and often serves as a ceiling or roof. In the ancient Middle East, India, and the Mediterranean, domes first developed as solid mounds and in methods suitable only for the tiniest structures, such as round houses and graves.
Hemispheres made of extensive stonework were first used by the Romans. All around its perimeter, the dome exerts thrusts, therefore the earliest colossal versions, like the Roman Pantheon, needed strong supporting walls.
Using a technology developed by Byzantine architects, domes may be raised on piers, allowing for lighting and communication in all four directions. Four pendentives, inverted triangular masses of masonry that were curved both horizontally and vertically, were used to connect the cubic base to the hemispherical dome.
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A client who has been having recurrent attacks of severe abdominal pain over the past few months informs the physician about a 25-pound weight loss in the past year. the nurse attributes which factor as the most likely cause of this weight loss?
The most reliable source of vitamin b12 for the vegan would be
A client who had surgery for a laryngectomy is returned to the surgical unit from the postanesthesia care unit. in which position is it most appropriate for the nurse to place the client at this time?
How might a person's immune system be affected if a portion of the DNA codes for interferons has mutated
Answer:
The immune system will be susceptible to viral infections
Explanation:
The immune system is the body's primary defense against microbial attacks. One component employed by the immune system is INTERFERONS or IFs, which are one of the group of proteins called CYTOKINES that helps tackle viral attacks in the body by interfering with their replication process.
MUTATION is any change in the nucleotide sequence of a DNA. As we know that genes are expressed into proteins, likewise the interferon protein is encoded by a gene. If a mutation occurs that disrupts or changes the sequence of the interferon-encoding gene, this could lead to the formation of a different non-functional protein entirely or a defective interferon protein. Hence, interferon protein will lose its functionality and be unable to stop viral infection.
This will cause the immune system to be vulnerable to any form of viral infection as the primary defense against them has been compromised by mutation.
When considering light moving through a diffraction grating, you should treat the light as A) both a particle and a wave. B) a particle. C) a wave. D) neither a particle nor a wave.
Answer:
A) both a particle and a wave
Explanation:
I just had this question on USA Test Prep so I know it is right.
Answer:
A) both a particle and a waveExplanation:
You should treat the "light as both a particle and a wave.. Due to the way the light interacts after the grating, you can see a pattern of interference that can only be explained by waves.
Which three groups contain large algae known as seaweeds? which three groups contain large algae known as seaweeds?
What is not true of the effects of hypoventilation? what is not true of the effects of hypoventilation? blood ph decreases hydrogen ion concentration in the blood decreases carbonic acid concentration in the blood increases partial pressure of carbon dioxide in the blood increases?
what is the wet-bulb depression?
The nurse is taking a history on kumar, who informs her that he has an allergy to adhesive tape. when the nurse asks kumar to describe his reaction to the tape, he describes it as "blotchy and reddened." what type of allergic reaction is this?
Research the types of cells present in the kidney.
Skin color in humans is an example of a phenotypic trait that is determined by polygenic inheritance. three separate gene loci determine skin color (p, q and r), where each gene locus has an additive effect on skin color and the capital letters represent incompletely dominant alleles producing dark skin. what fraction of the children of a medium-toned (ppqqrr) mother and medium-toned (ppqqrr) father would exhibit the lightest possible skin color(genotype: ppqqrr)?
The fraction of children with the lightest possible skin color in this case is 1.
Explanation:Skin color in humans is determined by polygenic inheritance, meaning that it is influenced by multiple genetic factors. In this case, three gene loci (p, q, and r) determine skin color, with each locus having an additive effect. Capital letters represent incompletely dominant alleles producing dark skin. To determine the fraction of children with the lightest possible skin color (genotype: ppqqrr), we need to consider the inheritance patterns.
Both parents have the same genotype, ppqqrr, which means their children will also have this genotype.Since the alleles for dark skin are incompletely dominant, individuals with the genotype ppqqrr will have the lightest possible skin color.Therefore, all of their children will have the lightest possible skin color, resulting in a fraction of 1.So, all of the children of a medium-toned (ppqqrr) mother and medium-toned (ppqqrr) father would exhibit the lightest possible skin color.
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In pea plants, tall (T) plants are dominant over short (t) plants. If a heterozygous (Tt) pea plant is crossed with a homozygous dominant (TT) pea plant, all of the resulting pea plants should be tall (TT or Tt). Each plant will receive a dominant allele from the homozygous dominant plant, while they could receive either a dominant or recessive allele from the heterozygous plant.
The fact that each plant gets only one allele from each parent plant is detailed in the law of _______.
A.
genetic inheritance
B.
multiple alleles
C.
independent assortment
D.
segregation
Answer: d. segregation
Explanation: i did it:)
The fact that each plant gets only one allele from each parent plant is detailed in the law of segregation. The correct option is D.
What is law of segregation?The law of segregation, also known as Mendel's first law, explains how pairs of alleles segregate during gamete formation in parents and recombine during fertilisation to form the genotype of offspring.
According to the law, two alleles for each gene segregate from each other during gamete formation, so that each gamete receives only one of two alleles.
This segregation ensures that each offspring inherits only one allele from each parent, and it serves as the foundation for the dominance and recessiveness principle, which states that one allele may mask expression of another.
The law of segregation explains how, in the given scenario, the offspring of a cross receive only one allele from each parent, resulting in all offspring being either Tt or TT and exhibiting the dominant phenotype of tallness.
Thus, the correct option is D.
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A chemoorganotroph and a photoautotroph in the same environment would not compete for
Final answer:
Chemoorganotrophs and photoautotrophs would not compete for light energy as they have different energy sources, with the former relying on organic compounds and the latter on sunlight for photosynthesis.
Explanation:
A chemoorganotroph and a photoautotroph in the same environment would not compete for light energy, because chemoorganotrophs do not rely on light. Instead, they obtain energy by oxidizing organic compounds. In contrast, photoautotrophs like plants and algae use sunlight to convert carbon dioxide and water into organic compounds, a process known as photosynthesis. Therefore, these two types of organisms have different nutritional requirements and energy sources, reducing direct competition between them.
Chemoautotrophs are distinct from photoautotrophs because they extract energy from inorganic chemical compounds rather than from sunlight. Both types of autotrophs produce organic matter from carbon dioxide, but the source of energy for that process is different. Chemoautotrophs often thrive in environments devoid of sunlight, such as deep-sea hydrothermal vents, where they can utilize the chemical energy available from substances like hydrogen sulfide (H₂S).
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What prediction can you make about the impact of these threats on the resident populations versus the transient populations?
A) The resident populations are more likely affected by these threats because of their proximity to shore.
B) The resident populations and the transient populations are likely to be equally affected by these threats.
C) The transient populations are more likely affected by these threats because of their distance from shore.
D) Neither the resident populations nor the transient populations are likely to be affected by these threats in the future.
Answer: A) The resident populations are more likely affected by these threats because of their proximity to shore.
Explanation:
All of these threats are higher in coastal regions.
As contaminants usually reach the ocean through rivers or because of coastal cities, the highest degree of pollution is there. All chemicals will accumulate in this region first, before they disperse into the offshore region. This is also caused by the fact that the coastal waters have a lower volume and surface area than the offshore which results in a higher degree of contamination.
Vessels are very similar to contaminants, as the number of vessels is highest in coastal waters, where ports are also placed. Vessels spread over large areas in offshore waters will gather in coastal waters as they enter the port. Recreational vessels not suited for open ocean are also numerous here.
Prey availability also is lower in coastal regions due to human activities such as pollution and fishing (which decreases the prey population), as well as vessels (which may scare the prey away or deteriorate their habitat).
Answer:
A Resident populations are more likely affected by these threats because of their proximity to shore
Explanation:
just took the test and got it right
If 70 percent of the hypothetical population passed along allele b, the dominant allele for brown eyes, and 30 percent passed along allele b, the recessive allele for blue eyes, the proportion of the subsequent generation with brown eyes would be ___________, given the hardy-weinberg equilibrium.
The proportion of the subsequent generation with brown eyes is 0.91.
Explanation:The proportion of the subsequent generation with brown eyes can be determined using the Hardy-Weinberg equilibrium equation. In this case, the equation is: p^2 + 2pq + q^2 = 1
where p^2 represents the proportion of individuals homozygous dominant for brown eyes (allele BB), 2pq represents the proportion of individuals heterozygous for brown eyes (allele Bb), and q^2 represents the proportion of individuals homozygous recessive for blue eyes (allele bb).
Given that 70% of the population has allele B (brown eyes) and 30% has allele b (blue eyes), we can calculate the proportion of individuals with brown eyes as follows:
p^2 = (0.7)^2 = 0.49
2pq = 2(0.7)(0.3) = 0.42
q^2 = (0.3)^2 = 0.09
Therefore, the proportion of the subsequent generation with brown eyes would be 0.49 (homozygous dominant) + 0.42 (heterozygous) = 0.91.
How do the particles in plasmas compare with the particles in solids?
Plasmas and solids are both made up of cation-anion pairs.
Solids and plasmas are both made up of electrons and cations.
Solids are made up of cation-anion pairs, but plasmas are not.
Plasmas are made up of cation-anion pairs, but solids are not.
Answer:
D
Explanation:
1. Identify the substance.
sugar
a) carbohydrate
b) lipid
c) nucleic acid
d) protein
2. Identify the substance.
DNA
a) carbohydrate
b) lipid
c) nucleic acid
d) protein
3. Identify the substance.
hemoglobin
a) carbohydrate
b) lipid
c) nucleic acid
d) protein
Answer:
sugar=Carbohydrate
DNA=nucleic acid
Cholesterol=lipid
Explanation:
branliest please
Sugar is basically a carbohydrate, DNA is nucleic acid and hemoglobin is a protein. The correct options are a, c, and d respectively.
What is macronutrient?Macronutrients, often known as fat, protein, and carbohydrates, are the nutrients we require in greater amounts to give us energy. The majority of micronutrients are vitamins and minerals, which are also crucial but only in very small quantities.
The general term for soluble carbohydrates with a sweet flavour and which are frequently found in food is sugar. Glucose, fructose, and galactose are examples of simple sugars, commonly referred to as monosaccharides.
Deoxyribonucleic acid, also known as DNA, is the molecule that carries the genetic material necessary for an organism's growth and operation.
Red blood cells include the protein haemoglobin, which transports oxygen to your body's organs and tissues and carbon dioxide from those tissues back to your lungs.
Thus, the correct options are a, c, and d respectively.
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What are some factors of diseases that researchers look at in deciding whether or not a disease is appropriate for gene therapy?
The case of little albert is used by behaviorists to explain ____.
a. obsessive-compulsive disorder
b. generalized anxiety disorder
c. posttraumatic stress disorder
d. phobias
Final answer:
The case of Little Albert is used by behaviorists to illustrate how phobias can be learned through classical conditioning.
Explanation:
The case of Little Albert is used by behaviorists to explain phobias. This classic experiment performed by John B. Watson and Rosalie Rayner demonstrated how a previously unfeared object, such as a white rat, could become a source of intense fear through the process of classical conditioning.
Little Albert developed a conditioned response of fear toward the rat, which was associated with the loud noise that had been paired with it. Although unethical by today's standards, the study highlighted how phobias could be acquired through environmental experiences and conditioning, rather than being innate.
Behaviorists argue that phobias are specific fears of a certain object, situation, or activity, and are characterized by their specificity and their irrationality.
Unlike generalized anxiety disorder (GAD), where the anxiety is more diffuse and is not linked to specific triggers, or obsessive-compulsive disorder (OCD), characterized by repetitive thoughts and behaviors aimed at reducing anxiety, phobias are marked by avoidance of particular stimuli that provoke intense fear.
What does the large intestine extract water from undigested food?
What evidence would prevent scientists from classifying viruses as living organisms?
The evidence would prevent scientists from classifying viruses as living organisms that would need the scientists to see the organisms as per their phylogeny relationship.
What is the name of any living fossil ?
The name of a living fossil are the sedimentary rocks such as with the multiple impressions with it.
Viruses are not made out of cells such that they can't keep themselves in a stable state as they don't grow such that they can't make their own energy as even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.
Proteins help to diagnose the structures of the species via the type of structures that are present in the structure in order to view the types of structures that are present in it.
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The correct option is A (i) and (iii)
Viruses are the smallest among all microorganisms.
Lack of cellular structure
Viruses lack a cellular structure and the cellular machinery needed to make proteins by themselves.Inability to maintain homeostasisViruses do not maintain homeostasis.Inability to reproduce on their ownViruses can only reproduce after they have invaded the cells of another organism.Inability to use their own energyOutside of a host cell, viruses do not use any energy and only become active when they come into contact with a host cell.Once activated, they use the host cell's energy and tools to make more viruses.
Correct question is : Which of the following statement(s) is/are true about viruses?
i. Viruses are the smallest among the microorganisms
ii. Viruses can live freely
iii. Viruses use the host cell to reproduce
iv. Viruses do not have DNA or RNA
A. i and iii
B. ii and iv
C. i
D. iii and iv
After the delivery of her child, the mother went to the _________ unit of the hospital.
The opening between the right atrium and the right ventricle is controlled by the
Starch can be broken down into the disaccharide known as _____. starch can be broken down into the disaccharide known as _____. lactose glucose sucrose fructose maltose
Starch is broken down into the disaccharide maltose, which consists of two glucose molecules. This process is facilitated by the enzymes amylase and maltase.
Explanation:Starch, a form of complex carbohydrate, is broken down into the disaccharide maltose. The process begins with the enzyme amylase, that breaks down starch into smaller fragments, creating a disaccharide known as maltose. Maltose consists of two glucose molecules bonded together. This breakdown further continues in the small intestine with the help of another enzyme, maltase; it splits the maltose into two separate glucose molecules.
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Having an extra finger is a dominant condition. a woman is homozygous dominant for an extra finger and her husband is homozygous recessive. what phenotypes do the offspring have and in what proportions
Red blood cells contain approximately a 2% concentration of solutes. a red blood cell is placed into a solution that contains a 4% concentration of solutes to which the cell is not permeable. what will happen to the red blood cell?
The red blood cell will undergo crenation due to the surrounding hypertonic solution. Water from inside the cell will move out to the solution causing the cell to shrink and possibly leading to the cell's death.
Explanation:When a red blood cell, which has a 2% concentration of solutes, is placed in a solution with a 4% concentration of solutes to which the cell can't permeate, the environment around the cell is considered hypertonic. This means that the concentration of solutes outside the cell is higher than inside the cell. In reaction to this, water in the red blood cell will move out of the cell to the surrounding solution in an attempt to balance the concentration of solutes. This process is known as osmosis.
As a result, the red blood cells will lose water and shrink, a process called crenation. This concentration of solutes in the cell will increase, making the cytosol denser which can interfere with diffusion within the cell. The functioning of the red blood cell will be compromised and it might lead to the cell's death due to the loss of water and inability to maintain its necessary functions.
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