Answer:
OOF
Explanation:
The correct answer is b) Founder effects may create uniform genetic backgrounds, converting dominance variance to additive genetic variance. This process, facilitated by genetic drift in small, isolated populations, can lead to speciation by increasing the frequency of certain alleles and changing the nature of variance within a population.
Explanation:This is because founder effects often result in a population not genetically representative of the original larger population from which it derived. This can lead to an increase in certain alleles - potentially including deleterious ones - within the new population, as well as a change from dominance variance (where dominant and recessive interactions influence the phenotype) to additive variance (where alleles contribute to the phenotype independently of each other). Such events can ultimately lead to speciation as these changes accumulate over time.
An example of the founder effect is observed in the Afrikaner population of Dutch settlers in South Africa, where a small subset of the original population carried mutations for Huntington's disease (HD) and Fanconi anemia (FA), resulting in these diseases being more prevalent in the current population. Similarly, the side-blotched lizards' throat color patterns demonstrate how founder effects can influence phenotype frequencies through genetic drift. These instances underline how a small, isolated population can develop distinct genetic traits different from the original population, which may foster speciation.
Hey student drew the following flowchart to show the movement of nutrients through earths spears soil plants animals air which process directly moves nutrients for animals to the air? Mineralization ,breathing, photosynthesis or feeding
Answer:
The correct answer is breathing.
Explanation:
A physiological procedure, which provides the body with oxygen and discharges carbon dioxide is known as breathing. In the process, the pulmonary alveoli, which are situated in the lungs permit the exchange of respiratory gases between the blood, that is, the internal medium and the air or the atmosphere, that is, the external environment.
Answer:
breathing
Explanation:
Breathing is a process of gas exchange whereby living things obtain oxygen and eliminate carbon dioxide into the atmosphere. Oxygen obtained through respiration is used by cells in the cellular respiration process to obtain energy.
Each animal has a different way of performing gas exchange, but we can say that it is through breathing that all animals move nutrients directly into the air through breathing. In more complex animals, there are structures capable of oxygen uptake, such as skin, trachea, gills and lungs.
Organisms classified as fungi have unique characteristics. Which of the following characteristics is found only in organisms classified in the kingdom fungi?
A. single cells without a nucleus
B. multicellular with chloroplasts
C. multicellular filaments that absorb nutrients
D. colonies of single, photosynthetic cells that reproduce asexually
Answer is A. single cells without a nucleus
The characteristic that is found only in organisms classified in the kingdom fungi is that they have multicellular filaments that absorb nutrients. Thus, the correct option for this question is C.
What are the Kingdom fungi?The Kingdom Fungi may be defined as a type of kingdom that appears like a plant-like organism that does not make chlorophyll. It significantly includes Mushrooms, yeasts, and molds.
Fungi spend much of their lives with only a single nucleus. Except, that is when two filaments cross paths. When two lonely filaments find each other, the cells at the tip of the filaments fuse and form new structures that have two nuclei per cell.
They are eukaryotic, non-vascular, non-motile, and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores.
Therefore, the characteristic that is found only in organisms classified in the kingdom fungi is that they have multicellular filaments that absorb nutrients. Thus, the correct option for this question is C.
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Please Help!!
How are planets affected by their location within the solar system?
• Shape of orbit
• Motion
• Temperature
The location of a planet within the solar system affects its orbit shape, motion, and temperature.
Explanation:In the solar system, the location of a planet affects the shape of its orbit, its motion, and its temperature.
The shape of a planet's orbit is determined by its distance from the Sun. Planets closer to the Sun have more elliptical (oval-shaped) orbits, while planets farther away have more circular orbits.
The motion of a planet is influenced by its position in the solar system. Inner planets, such as Mercury and Venus, have faster orbital speeds due to their proximity to the Sun. Outer planets, like Jupiter and Saturn, have slower orbital speeds.
The temperature of a planet is also impacted by its distance from the Sun. Planets closer to the Sun receive more solar energy, resulting in higher temperatures, while planets farther away receive less energy and have colder temperatures.
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The location of planets in the solar system affects their shape of orbit, motion, and temperature. The sun's gravity and the planet's distance from the sun mainly determine these characteristics. Closer planets have more circular orbits and move faster due to the sun's gravitational pull, and also have higher temperatures due to receiving more sunlight.
Explanation:The location of planets within the solar system significantly affects their shape of orbit, motion, and temperature. The gravity of the sun and the distance from it primarily determine these.
Shape of orbit: Most planets move in elliptical orbits. The nearer a planet is to the sun, the more circular its orbit tends to be because of the sun's stronger gravitational pull.
Motion: The speed at which a planet moves, or its orbital speed, is also reliant on its distance from the sun. Planets closer to the sun move faster than those further away due to the larger gravitational pull.
Temperature: The temperature of a planet is largely determined by how much sunlight it receives, which is directly associated with its distance from the sun. Planets that are closer to the sun are hotter, and those further away are colder.
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Which of the following are characteristics of translation?Each tRNA binds one amino acid and also carries an activating enzyme for this amino acid, known as an amino transferase.The anticodon region of the tRNA binds to a complementary codon region on mRNA.mRNA is read in the 3′ to 5′ direction.The resulting polypeptide is synthesized from its N terminus.View Available Hint(s)Which of the following are characteristics of translation?Each tRNA binds one amino acid and also carries an activating enzyme for this amino acid, known as an amino transferase.The anticodon region of the tRNA binds to a complementary codon region on mRNA.mRNA is read in the 3′ to 5′ direction.The resulting polypeptide is synthesized from its N terminus.Only 2 and 4 are correct.1, 2, and 4 are correct.All of the listed statements are characteristics of translation.None of the listed choices is a characteristic of translation.
Answer:
Only 2 and 4 are correct
Explanation:
Translation is a process of protein synthesis and it is the final step of gene expression. mRNA synthesized during the transcription is used as an information carrier for protein synthesis. It contains codons-triplet of nucleotides that correspond to one amino acid. mRNA is read in 5'-3' direction by translational machinery. tRNA which is part of the by translational machinery (together with ribosome and proteins) has in ts structure anticodon-RNA triplet which is complementary to the mRNA. tRNA also contain a site for the attachment of amino acid. Amino acids are linked via peptide bonds by an enzyme aminoacyl tRNA synthetases. Polypeptide is synthesized from N to C terminus.
An object's motion changes
A.
when the forces acting on the object remain balanced.
B.
only if the object is at rest when a force acts upon it.
C.
only when a nonzero net force is applied to the object.
D.
all of these
Answer:
The answer is D, because if the all of them will either stop the object in motion or move an object that is staying still.
Explanation:
Noncompetitive, enzyme, irreversible, acetylcholinesterase, competitive, active site.1. Insecticides and nerve gases act as irreversible inhibitors of ________, an enzyme needed for nerve conduction. 2. A _________ inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate. 3. The competitive inhibitor competes with the substrate for the _____ on the enzyme. 4. When the noncompetitive inhibitor is bonded to the enzyme, the shape of the _______ is distorted. 5. A _________ inhibitor binds to a site on the enzyme that is not the active site. 6. Usually, an ______ inhibitor forms a covalent bond with an amino acid side group within the active site, which prevents the substrate from entering the active site or prevents catalytic activity.
Answer:
Binds to a site on the enzyme that is not the active site. When this occurs, the shape of the enzyme is distorted
A competitive inhibitor is one that has a structure that is so similar to the substrate that it can attach to the enzyme in the same way as the substrate.
What is the structure of enzyme?Non-competitive inhibitors are those that bind to an enzyme location other than the active site.
Typically, an inhibitor binds to an amino acid side group at the active site through a covalent link, preventing the substrate from accessing the active site or inhibiting catalytic activity persistent inhibition.
The substrate and the competitive inhibitor fight for the enzyme's active site.
Therefore, the enzyme's structure is altered when the noncompetitive inhibitor is bound to it.
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Which of the following is a sustainable practice?
A. Throwing jars in the trash can
B. Flushing medicine down the toilet
C. Using only geothermal energy
D. Leaving trash bags at a local park
Answer: C. Using only geothermal energy.
Explanation:
Sustainable practices are those practices which are done to utilize the natural resources in a manner so that they will remain available for the future generation too.
The use of geothermal energy is a sustainable practice this is because of the fact that it is obtain from the geosphere. It is an alternative source of natural energy. The geothermal energy is obtain from water released from a hot spring. The ground water is heated up by the hot mantle present in the earth core. The underground force and pressure liberates hot water. This form of energy can be used for heating up the buildings, constructing a natural water bath and for other uses. The utilization of this form of energy is suitable for the conservation of conventional resources like fossil fuels which are used for the generation of thermal energy. By this manner the conventional resources will be available for the future generation.
The sustainable practice among the options provided is C. Using only geothermal energy. The correct option is option C.
Geothermal EnergyGeothermal energy is a renewable energy source used to produce electricity or heat structures by drawing heat from the Earth's core. As a clean, practically limitless source of energy that doesn't emit greenhouse gases or cause climate change, it is seen as sustainable. The word "geothermal" is derived from the Greek words "geo" meaning "earth" and "thermos" meaning "heat."
Geothermal energy can be used in a variety of ways, but the most popular one includes drilling deep wells into the Earth in order to access the hot water and steam reservoirs known as geothermal reservoirs. These reservoirs' heat energy can be used directly for heating or it can be used in geothermal power plants to create electricity.
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