Among animals, for gaseous exchange, Fish use gills and insects use spiracles. The correct option is D.
What is respiration?The procedure by which cells utilize oxygen to break down sugar and obtain energy is referred to as respiration.
There can be different organs for respiration in different animals. For example, human uses lungs, fishes have gills, insects have spiracles, etc.
Thus, the correct option is D.
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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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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!
What happens at the end of the dark reactions?
Answer: Glucose is the end product of the dark reaction.
Explanation:
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.
1. The words rotate and revolve have the same meaning when describing the motion of planets.
a. True
b. False
Answer:
False
Revolution:
The movement of the Earth around the Sun, once every 365.25 days is called a revolution.
Rotation:
The movement of the Earth as it takes 24 hours to spin on its axis is called a rotation.
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.
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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Which of these best describes a hormone?
A. A chain of amino acids secreted by a gland
B. A neurotransmitter with a specific target
C. A neurotransmitter carried in the blood
D. A chemical message secreted by a gland
Answer:
option D
A chemical message secreted by a gland.
Explaination: A hormone is a chemical that is made by specialist cells, usually within an endocrine gland, and it is released into the bloodstream to send a message to another part of the body. It is often referred to as a 'chemical messenger'.
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..............
Chlorophyll is found in the thylakoid which are found in chloroplast
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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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
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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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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Which brain regions were removed during H.M.’s surgery? Select all that apply
- amygdala
-hippocampus
-medial temporal lobe
-cerebellum
-basal ganglia
Answer:
hippocampusmedial temporal lobeWhat is Animalia Kingdom
[tex]{\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}[/tex]
It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.
I hope I've helped : )
Answer:It is composed of multicellular, eukaryotic, heterotrophic, aerobic, and immotile organisms that reproduce through spores, either sexually or asexually.Explanation:
[tex]\sf XD [/tex]
What are Interphase, prophase I, metaphase I, anaphase I, telophase I, prophase Il, metaphase II, anaphase II, telophase Il in meiosis.
The stages of meiosis 1 and meiosis 2 is discussed below:
What is meiosis?Eukaryotic cells (plants, animals, and fungi) reproduce sexually through a process called meiosis. Chromosome reduction is the process by which haploid cells are created from diploid cells, which are cells with two complete and identical sets of chromosomes.
The number of chromosomes in each cell is halved during meiosis I, which starts with one diploid parent cell and ends with two haploid daughter cells.
Maintaining the number of chromosomes in each cell, meiosis II begins with two haploid parent cells and finishes with four haploid daughter cells. Before meiosis II, homologous pairs of cells divide into chromosomes while in meiosis I.
These chromosomes are further divided into sister chromatids during meiosis II. Meiosis II does not include genetic material crossing across or recombining between chromosomal pairs, whereas meiosis I do.
This happen in the prophase contains five subphases and is lengthy and complex during meiosis I. The equatorial plane in meiosis II is aligned 90 degrees differently than in meiosis.
Therefore interphase1, prophase 1, metaphase 1, anaphase, and telophase 1 are the stages of meiosis 1 and prophase Il, metaphase II, anaphase II, and telophase Il in meiosis 2.
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Type your response in the box.
Cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of
a scientific theory? Do you think it should be a scientific law? Explain your response.
Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells
Explain why there are fewer organisms at higher trophic levels.
Answer:
As we move to higher Trophic levels, we will, generally speaking, see larger animals. And yet, moving to higher trophic levels, these larger animals need to live on smaller energy production from the next trophic level down. As a result, there will usually be fewer animals at higher trophic levels.
Explanation:
Macrolides generally have bacteriostatic and bacteriocidal activity?
1.true
2.false
Macrolides generally have bacteriostatic and bacteriocidal activity?
A. TrueB. False
#carry on learning
Which function involves the circulatory system working with the respiratory system?
A. Lowering body temperature
B. Enabling cellular respiration
C. Stopping bacterial infection
D. Maintaining liver function
The function involves the circulatory system working with the respiratory system is Enabling cellular respiration. Thus, option "B" is correct.
What are circulatory and Respiratory system?Respiratory system is a set of organs which help in the exchange of gases in the body. They bring oxygen from outside into the body and release carbon dioxide from inside the body to the outside world. The exchange of the gases takes place at the alveolar site (or gills in aquatic animals).
The circulatory system then carries this oxygen (mixed in blood) from gas exchange site to all the cells of the body. In addition, it also brings carbon dioxide (waste product of cellular respiration) from all the cells to the gas exchange site (respiratory system).
Thus, option "B" is correct.
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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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Please help!! Will mark brainiest!
The process of accumulating higher and higher amounts of a toxic material such as mercury or PCBS within the body of any animals is called?
1. biological resistance
2. biological half-life
3. bioaccumulation
4. biological demagnification
Answer:
Bioaccumulation
Explanation:
Bioaccumulation is the of accumulation of harmful chemicals.
Which of these has not been used as an RNA probe?
a. Fluorescence probes
b. Radioactive probes
c. Non- radioactive
d. Cellular probes
Answer:
I think the answer is Cellular Probes.
Explanation:
I hope this helps! Correct me if I am wrong.
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.
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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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. :)
Define Evolution and Natural Selection
How many feedback loops are possible in a food web of 20 species?
The release of greenhouse gases from one state can enter another state due to atmospheric circulation. If there is a problem between states, what do you think would be the best way to handle this problem???
Due to atmospheric circulation, the greenhouse gases can enter from one state to another state. These changes are caused by extra heat in the climate system due to the addition of greenhouse gases to the atmosphere.
What are the ways to handle greenhouse effect?The Earth's radiated energy is trapped by greenhouse gases such carbon dioxide, methane, nitrous oxide, and some manmade compounds, which keeps heat in the atmosphere.
The best way to handle this problem are:
Fossil fuels should remain underground.Switch to electric vehicles fast.Make the world's energy supply renewable.Double the extent of forest and rehabilitate habitats.Stop supporting fossil fuels abroad.Learn more about greenhouse gases here:
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