Answer:
Calcium's positive molecule is important to the transmission of nerve impulses to the muscle fiber via its neurotransmitter triggering release at the junction between the nerves. Inside the muscle, calcium facilitates the interaction between actin and myosin during contractions.
Explanation:
Which piece of technology allowed scientists to look for life on Mars?
The piece of technology that allowed scientists to look for life on Mars is known as the name of the rover.
What is Technology?Technology may be defined as the application of scientific understanding of the real purposes of human life. It also illustrates the concept or methods used in the manipulation of the human environment for their betterment.
A Rover is typically an instrument that is used to collect life-related information about the dust, soil, liquid components, and even atmospheric air of other planets like Mars.
The complete question is as follows:
Which piece of technology allowed scientists to look for life on Mars?
Telescope RoverMicroscope ProbewareTherefore, the correct option for this question is B.
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Scientific research about how disruptions of the carbon and nitrogen cycles
affect people will be least valuable if the results:
O A. are confirmed by peer review but are rejected by the public.
B. are inconclusive but might possibly be true.
O
C. help us slow the growth of Earth's human population.
O
D. help us prevent a continued rise in Earth's sea level.
The disruption of the carbon and nitrogen cycles affecting people will be least valuable if the results are inconclusive but might possibly be true. Thus, the correct option is B.
What is the Carbon cycle?The carbon cycle may be defined as the movement of carbon and its derivatives through various biotic and abiotic components of an ecosystem.
The effect of disruption of nutrient cycles will be the least practical and useful if the outcome of it is not conclusive with respect to the deterioration of an ecosystem but might be conceivably true.
It impacts scientific research to a larger extent and allows it to affect the disruption of nutrient cycles in an ecosystem in a significant way.
Therefore, the correct option for this question is B.
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The area around a pond is cooler than the rest of the forest. Which term describes the area around the pond?
The term microclimate best describes the area around the pond.
What is Pond?A pond may be defined as an aquatic habitat which is a tiny body of still water originated naturally or by artificial norms. It is usually smaller than a lake.
A microclimate may be defined as a climate of a small area or a distinct place within a location as distinguished from the surroundings of the complete area.
A microclimate usually involves a very smaller area in contrast to determining the climate of a particular location.
The complete question is as follows:
The area around the pond is cooler than the rest of the forest. Which term describes the area around the pond?
BiomeMicroclimateMacroclimateTherefore, the correct option for this question is B, i.e. microclimate.
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Please Help No Random Answers.
Jeff has 10 grams of water and 10 grams of vegetable oil in separate containers. Both liquids have a temperature of 24°C. Jeff heats both liquids over a flame for five minutes. When he’s finished, he discovers that the temperature of the oil increased more than the temperature of the water. What can Jeff conclude from this experiment?
The temperature of the oil increased more than the temperature of the water because vegetable oil has a lower heat capacity than water.
Heat capacity is the ratio of heat absorbed to temperature change by a material. Typically, it is stated in terms of calories per degree. Oil can hold more heat than water. Compared to water, oil can be heated to high temperatures more quickly with a significantly lower energy input because it has a lower heat capacity than water..Oil transfers heat to food more gradually to a fixed temperature than water does. Oil can be heated to a higher temperature than water when it is in a liquid state.Hence, the correct option is D.
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1. Which human traits form a wide range of states instead of two distinct states?
A) cleft chin
B) eye color
C) widow's peak
D) fully attached earlobes
2. Don's earlobes are fully attached, Both of his parents have free earlobes (not fully attached). One of Don's grandparents has fully attached earlobes, like he does.
What can be said about fully attached earlobes?
A) Fully attached earlobes are dominant. Both of Don's parents do not have them
B) Fully attached earlobes are recessive. Both of Don's parents have them.
C) Fully attached earlobes are dominant. They skip a generation in inheritance.
D) Fully attached earlobes are recessive. They skip a generation in inheritance.
3. A scientist is doing experiments using some ancient seeds discovered in an ancient temple.
Which option is a prediction that relates the outcome of the scientist's experiments with probability?
A) The scientist thinks that the seeds were in the temple as part of a ritual.
B) The scientist thinks that more seeds can be recovered from other similar locations on Earth.
C) The scientist thinks that seeds that are old have 0% chance of sprouting; so, if they do, they must be modern.
D) The scientist thinks that if conditions are good, about 10% of the seeds will sprout and grow into plants
4. Which option describes how genes control the traits of a cell?
A) Genes code for specific structures and molecules in a cell. Those structures and molecules form the traits of the cell.
B) Genes become building blocks for specific structures and molecules in a cell. Those structures and molecules farm the traits of the cell.
C) Genes determine how much energy goes to each organelle in the cell. The organelles form the traits of the cell.
D) Genes are molecules that organelles are made out of. Once assembled into organelles, they form the traits of the cell.
Explanation:
hope it helps
thank you!!!
The human eye color is a trait which forms a wide range of states instead of two distinct states. Fully attached earlobes is a recessive trait which is seen in a very rare cases. Thus, the correct options are 1 (B), 2 (D), 3 (D), and 4 (A).
What are traits?Traits are the characters which are controlled by the genes. Genes are present on the DNA molecule which encodes for different proteins which are responsible for the traits or phenotypic characters of an organism.
Quantitative traits are the traits for which the phenotypic variation is continuously distributed in the populations, with the variation in population often approximating the normal distribution on an appropriate scale. The human eye color is an example of quantitative trait which is controlled by different genes.
Recessive traits are the traits which are seen very rarely as these are only shown when present in homozygous condition. These traits are seen to skip generations as seen in the case of fully attached earlobes.
When a scientist is doing experiments using the ancient seeds which he discovered in an ancient temple, the scientist thinks that if the optimum conditions are provided to the seeds then about 10% of the seeds will sprout and therefore grow into plants.
Genes are the parts of the DNA which are responsible for encoding proteins. These proteins controls the phenotypic characters of an individual.
Therefore, the correct options are 1 (B), 2 (D), 3 (D), and 4 (A).
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What advantage do wet areas have over rock layers in terms of fossilization?
They produce more oxygen used to harden the specimen.
They can preserve soft tissue with more details.
They decompose materials at a faster rate.
They are able to preserve very large remains.
Wet areas have an advantage over rock layers in terms of fossilization. They produce more oxygen used to harden the specimen.
Only in river valleys does deposition on land occur often. Sediments built up on river floodplains frequently include fossils. Strong currents and waves can be present in some ocean regions that are home to animal life.Hence, there are evidences that wet areas have an advantage over rock layers in terms of fossilization due to presence of abundant water.Water seeps into the remnants, carrying minerals dissolved in it into the crevices where they crystallize as a result of oxidization. The bones and the sedimentary rock that surrounds them both become harder as a result of these crystalline minerals.learn more about fossilization here: https://brainly.com/question/14529748
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Question 2
If purple flowers are dominant to white flowers. What are the possible genotypes of an organism with a purple phenotype?
Your answer:
O Pp. pp, PP
O PP, PP
0
PP
Pn
Answer:
Pp, PP
Explanation:
Purple: P
White: p
Purple flowers can still carry the white flower trait, that's how their offspring gets it. Since this offspring is purple, the dominant trait is present and will always show over the recessive trait. So of you get a purple flower the possible genotypes are PP and Pp, if you have a white flower the possible genotypes are only pp. :)
Match the structural formula to the chemical formula for this substance
Answer:
D.) HOCOOH
Explanation:
Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.
a 42 year old woman presents with a painful, 3cm paraovarian cyst located in her broad ligament. ultrasonography reveals the cyst to be adjacent to the utetine tube, and laparoscopic surgery is scheduled. during surgery a small incision is made in the anterior abdominal wall and the scope is inserted into hee peritoneal cavity. what part of the broad ligament would most likely be incised to reach the tumor? provide an explanation
Broad ligaments consists of:-
What is mesometrium?The uterus's mesentery is called the mesometrium. It makes up the majority of the uterus' broad ligament, with the exception of the areas next to the ovary and mesosalpinx (the mesovarium). The mesosalpinx is close by. Among the structures in the mesometrium is the ureter.
Mesosalpinx: The part of the uterus' broad ligament where the ovaries are suspended is called the mesovarium. The germinal epithelium covers the ovary rather than the mesovarium, which would normally be present.
Mesovariun: The broad ligament's posterior extension, which houses the ovary, is known as the mesovarium. It carries the ovarian arteries and nerves and is attached to the ovary's hilum.
For the surgery mesometrium is to be incised to reach the tumor.
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a plant grows in soil contaminated with toxins. through which structure would toxins first enter the plant
The roots. The soil is toxic, and the roots absorb nutrients in the form of minerals and water from the soil so it would enter the plant via the roots.
Type the correct answer in the box. Spell all words correctly.
What does the scientific method help test in environmental science?
The scientific method is a way to test a
and gain a better understanding of the world.
The scientific method is a way to test a hypothesis and gain a better understanding of the world.
What is the scientific method?The scientific method is a process used to explore observations and answer questions.
The usual process involves making conjectures -that would be the hypotheses-, drawing predictions resulting from a logical consequence, and carrying out experiments based on those predictions.
The ultimate goal is to test a scientific hypothesis.
Thus, this could be the answer.
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A recessive gene located on the X chromosome is the cause of one type of colorblindness (denoted by Xc). Let the genotype for normal vision be denoted by X+. Suppose a mother with normal vision (X+Xc) and a father with normal vision (X+Y) reproduce. Their child's possible genotypes can be illustrated with the following Punnett square. Punnett square If they have a daughter, her chance of having this type of colorblindness is %.
The scenario will be Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son
What is color blindness?The condition is frequently inherited. Certain eye diseases and medications are also possible causes. Men are more affected than women.
Color blindness is characterized by the inability to distinguish between red and green shades.
A colorblind man's genotype is XcY, and a heterozygous carrier female's genotype is XcX. A cross between XcY and XcX would result in progeny with the following ratio=
Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son.
Thus, the couple is likely to have a son who is half normal and half affected. Similarly, the couple is likely to have 50% normal daughters and 50% colorblind daughters.
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Which of the following organelles is common to both prokaryotic and eukaryotic cells?
A.
Cytoskeleton
B.
Nucleus
C.
Nucl
Answer:
A) Cytoskeleton
Explanation:
The cytoskeleton is a network of fibers extending through the cytoplasm that provides. mechanical support and maintains the cell's shape.
Biological systems examples that can be found during a nature walk, such as cellular respiration
which statement of osmosis is correct?
Answer:
The process in which the water molecule moves from a region of higher solvent concentration to the region of lower solvent concentration.
The energy which drives this process is called osmotic pressure.
What are areolar tissues?
Explain with the help of diagram ( optional)
Answer:
cellular connective tissue with thin and relatively sparse collagen fibers.
Explanation:
Hope it Helps!!!
The type of tissue which connects and surrounds different organs in the human body. The important function of this type of tissue is that it provides nutrition to the cells and also acts as a cushion to protect the organs from various external forces.
Match the following descriptions to the correct corresponding
stage of the cell cycle.
Mitosis
[Choose ]
Cytokinesis
[Choose ]
Synthesis
[Choose ]
Gap 1
[Choose ]
Gap 2
[Choose ]
Interphase
[Choose ]
Previous
The descriptions are not found here but mitosis is cell division, whereas cytokinesis is the division of the cytoplasm.
What is the cell cycle?The cell cycle is a series of steps that initiate with cell growth (G1) and ends with cell division (mitosis).
The cell cycle can be divided into interphase (G1, S and G2) and mitotic stage (cell division and cytokinesis).
The Synthesis (S) step can be defined as the interphase stage where DNA replication occurs.
Growth 1 (G1) and Growth 2 (G2) are fundamental stages where the cell prepares for its division by synthesizing key proteins required during mitosis.
Mitosis is the cell division process where duplicated genetic material (DNA) separate and two genetically identical new daughter cells form.
In conclusion, the descriptions are not found here but mitosis is cell division, whereas cytokinesis is the division of the cytoplasm.
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genotype is determined by the makeup of alles orvthe form of a gene that produced different effects
Answer: the way alleles are organized
Explanation:
Genotype is the genetic makeup of an organism that determines what forms of genes exist within it.
What does this symbol indicate on a weather map?
A. A stationary front
B. A cold front
C. A warm front
D. An occluded front
Answer:
C
Explanation:
Is a symbol..............
HURRYYYYYYY PLEASEEEE
Curate a collection of diagrams and photographs that illustrate the structure and makeup of DNA, as well as its location in the cell. Then, research a method of using isopropyl alcohol and a liquid detergent in order to extract and observe your own DNA. Photograph your results and add the labeled photographs to your digital DNA gallery.
The isopropyl method of DNA extraction is a lab based technique hence the pictures and results cannot be provided here. The DNA structure consists of a sugar phosphate backbone and a nucleotide base.
The double helix shape of DNA, a two-stranded molecule that seems to be twisted, is what differentiates it from other molecules. Each of the two strands is made up of a phosphate molecule and a lengthy series of nucleotides. a five-carbon sugar molecule known as deoxyribose. a region rich in nitrogen.The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA).Cellular organelles called mitochondria transform the energy from food into a form that cells can utilize.
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What happens at the end of the dark reactions?
Answer: Glucose is the end product of the dark reaction.
Explanation:
what is the answer to this question?? an object has a mass of 5g. what force is needed to accelerate it at 6 m/s2?
a. 0.83 N
b. 1.2 N
c. 11 N
d. 30 N
What is the name of the region where double-stranded single circular DNA is found in the Prokaryotic cell?
Answer:
the nucleoid
Key Points. Prokaryotic cells lack a defined nucleus, but have a region in the cell, termed the nucleoid, in which a single chromosomal, circular, double-stranded DNA molecule is located.
. Conduction of heat takes place only in .......
a Solids
b) Liquids
c) Gaseous
d) air
Answer:
Option A: Solids
Explanation:
Due to the fact that heat is transported from a hotter body to a cooler body when two objects are kept in thermal contact, conduction only occurs in solids and not in liquids or gases. Conduction is the term for this mechanism, which uses the same body temperature. When two bodies remain together during conduction to transfer heat In order to transmit heat energy quickly and more efficiently, the molecules of both entities vibrate and collide with one another. Since solids have compactly packed molecules, this allows the molecules to vibrate more and transfer heat more effectively than liquids and gases. When molecules in close proximity to one another clash, energy is transferred. Due to the molecules' near closeness and, in the case of crystals, their clearly defined structure, this occurs very readily in a solid. A few things alter when heat transport in liquids and gases is taken into account. The molecules are not as close together, and gravity has a particular, confusing influence. Heat is transferred through collisions of nearby particles in a process known as convection. The metal surface particles are transmitting heat to the liquid through conduction at the metal-water interface if convection is occurring between a solid that is hotter than the liquid adjacent to it, such as a pan on the stove. But when that occurs, the water's density begins to alter. The water molecules at the surface move faster, contain more energy, and occupy more space per mass (they are less dense). Because water molecules may pass one another and gravity makes this easier, the less dense water near the metal surface is replaced by the more dense water above it. Natural convection is the mechanism through which a liquid or gas moves in this manner as a result of variations in density. Conduction is no longer possible unless you can prevent the effect of fluid density on the flow of gases or liquids. Fundamentally, in both liquids and gases as well as solids, molecules continue to exchange energy through collisions. Conduction, however, performs this considerably more effectively in liquids at the metal-liquid contact and less so as you travel away from the interface and upward through the liquid. Convection is the movement of particles to transfer heat.
Bottom Line: Conduction may occur in gases and liquids, but you must be able to reduce the impact of gravity. These are known as "stagnant fluids." Convection is the term used to describe fluid movement caused by density variations when they are not prevented.
Identify the missing parts of the carbon cycle
photosynthesis
burning oil and coal
respiration
decomposers
CO2 in atmosphere
plants
animals
factories
fossil fuels
Answer:
1) sunlight
2) organic carbon
3) Dead organisms and waste products
4) Animal respiration
5) Plant respiration
6) Root respiration
One of the primary concepts of biology is natural selection which is based on the principle of an organism s ability to adapt to their surrounding environment. This concept also applies to all life on Earth, and it is certainly applicable to people in the workplace as well.
Thinking futuristic, to when you will have established your unique niche in the medical field, what traits do you possess that will give you the ability to adapt and thrive within your workplace environment?
Answer:
I think the traits you possess that will give you the ability to adapt and thrive in your workplace environment depends on your passion and skill for medicine and able to collaborate with colleagues. Hope it helps!
A muscle cell with high concentration of carbon dioxide and a low concentration of oxygen is surrounded by blood with a high concentration of oxygen and a low concentration of carbon dioxide. No ATP was used by the cell for cell transport of the carbon dioxide or oxygen molecules which of the following events will most likely happen?
Option C is correct.
What do you mean by muscle cell?The cells that make up muscular tissue are referred to as myocytes or muscle cells.
No oxygen is used during anaerobic respiration, hence less energy is released. During intense exercise, the glucose molecule splits into two molecules of lactic acid, which accumulate in the muscles. When the bloodstream cannot provide oxygen quickly enough for aerobic respiration, anaerobic respiration takes place.
The option missing is the query is given below:
A. Carbon dioxide will move into the cell by diffusion.
B. Carbon dioxide and oxygen will move out of the cell by osmosis.
C. Oxygen will move into the cell by diffusion.
D. Oxygen and carbon dioxide will move into the cell by osmosis.
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Diego is conducting an experiment to investigate how temperature affects chemical change. He has three pieces of cheese that he just bought from the store. He left one piece of cheese outside, one on the kitchen counter, and one in the refrigerator. His prediction is that the piece in the refrigerator will not mold, the one on the counter will mold a little, and the one outside will mold a lot. Select the conclusion The piece of cheese in the refrigerator had the most amount of chemical change. The piece of cheese on the counter had the most amount of chemical change. The piece of cheese in the refrigerator had the least amount of chemical change. The piece of cheese outside had the least amount of chemical change.
The piece of cheese in the refrigerator had the least amount of chemical change.
Moulding occurs on substances which are warm and moistMold thrives in warm and humid placesIn refrigerators, the environment is cool and dryThis environment hinders the growth of moldThe bacteria and fungi require optimum temperatures to flourish, which is not present in a refrigeratorThe cheese placed outside and on the counter will grow mold as those environments do not arrest the growth of moldRefrigeration ensures that food is not spoiltTherefore, the least amount of chemical change takes place on the cheese placed in the refrigerator.
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The shape of a child's nose may resemble that of the of the mother due to A .heredity B. similarity C. reflection D. familiarity
How many feedback loops are possible in a food web of 20 species?
