Some species of Anopheles mosquito live in brackish water, some in running fresh water, and others in stagnant water. What type of reproductive barrier is most obviously separating these different species?
a. temporal isolation
b. behavioral isolation
c. postzygotic isolation
d. gametic isolation
e. habitat isolation
Answers
Option e. Habitat isolation is the reproductive barrier separating Anopheles mosquito species adapted to different water types.
The sort of conceptive boundary most clearly isolating Anopheles mosquito species that live in various kinds of water is territory seclusion. This is on the grounds that these various species are adjusted to their particular living spaces and may not come into contact with each other for mating. Mosquitoes living in saline water will most likely be unable to interbreed with those living in running new water or stale water, as they may not have a similar natural surroundings.
Thusly, this detachment is a prezygotic seclusion, implying that it happens prior to mating or treatment. This sort of disconnection is normal in species that are adjusted to various conditions and is a significant figure keeping up with biodiversity by forestalling hybridization and keeping up with species limits.
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The most obvious reproductive barrier separating different species of Anopheles mosquito living in different types of water is e. habitat isolation, also known as ecological isolation.
Habitat isolation occurs when species live in different habitats or environments and do not come into contact with each other. In the case of Anopheles mosquitoes, those living in brackish water are unlikely to come into contact with those living in running fresh water or stagnant water due to their different habitat preferences. Therefore, they are reproductively isolated from each other.
Temporal isolation is a type of reproductive barrier that occurs when species mate or reproduce at different times of the day or year, while behavioral isolation occurs when species have different mating behaviors or signals. Postzygotic isolation refers to the failure of hybrid offspring to develop or survive, while gametic isolation occurs when gametes from different species are unable to fertilize each other.
In the case of Anopheles mosquitoes living in different types of water, there is no evidence to suggest that they have temporal, behavioral, postzygotic, or gametic isolation as the primary barrier to reproduction. Therefore, habitat isolation is the most likely reproductive barrier separating these different species.
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Related Questions
As stated in the thinking critically about organizational support and creativity section of the textbook, middle managers can strengthen the extent to which employees perceive that they are valued and cared for by the organization, by strengthening which two factors below?
a. employee’s identification with their work unit and their identification with the organization’s mission
b. employee’s expectation of career success and employee’s buy in with the organizations vision
c. emotional intelligence and cognitive aptitude
d. employees’ identification with their work unit and their expectations of career success
Answers
According to the thinking critically about organizational support and creativity section of the textbook, middle managers can strengthen the extent to which employees perceive that they are valued and cared for by the organization, by strengthening employees’ identification with their work unit and their identification with the organization’s mission (A).
What is organizational support?Organizational support refers to the extent to which an employee feels that the organization values their contributions and cares about their well-being. It is critical to keep employees motivated and engaged with their work as an essential element in organizational success. The strength of an employee's commitment and engagement to the organization depends on the level of support they receive.
What is creativity?Creativity is the ability to think outside the box and generate novel and innovative ideas and solutions. Organizations value employees who can produce innovative ideas that enhance the company's products or services, establish new market trends, and generate new revenue streams.
What is the role of middle managers in organizational support and creativity?Middle managers are responsible for driving organizational support and creativity in the organization. They play a crucial role in enhancing employees' identification with their work unit and the organization's mission. The greater the employee's identification with the work unit and the organization's mission, the higher their level of organizational support and creativity.
In conclusion, the correct answer is (a) employee’s identification with their work unit and their identification with the organization’s mission.
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what neurotransmitter is involved in the mesolimbic reward pathway?
Answers
Explanation:
dopamine is the neurotransmitter
In what ways do scientists measure biodiversity? Choose all correct answers
Answers
What is cytoplasm? (simple definition)
Answers
Answer:
the material or protoplasm within a living cell, excluding the nucleus.
Explanation:
Assume tall, yellow, and round are dominant traits over short, green, and wrinkled. In a cross between True breeding tall, yellow, round plants and true breeding short, green, wrinkled plants, what would be the expected frequency of tall, yellow, wrinkled plants in the F2 generation
Answers
In a cross between true-breeding tall, yellow, round plants (TYR) and true-breeding short, green, wrinkled plants (tyr), the expected frequency of tall, yellow, wrinkled plants (tYRtYR) in the F₂ generation is 6.25%.
This can be determined by performing a Punnett square analysis. The parental genotypes TYR and tyr produce the heterozygous genotype TtYyRr in the F₁ generation. When the F₁ generation produces gametes, there are eight possible combinations of alleles: TYR, TyR, tYR, tyr, TYr, Tyr, tYr, and tyr.
Crossing these gametes in a Punnett square reveals that out of the 16 possible genotypes in the F₂ generation, only one corresponds to tall, yellow, wrinkled (tYRtYR). Thus, the expected frequency is 1/16 or 6.25%.
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What's the function of incisors and canines
Answers
Canines : tears down the food into further smaller pieces
if t takes P-wave five minutes to travel from the epicenter of an earthquake to seismic station, approximately how long will it take for a S-wave to travel the same distance?
Answers
An S-wave would therefore need to travel the same distance from the epicenter to the seismic station in about 8.33 minutes.
S-waves move at a speed that is typically between 60% and 70% that of P-waves. For this computation, a cautious estimate of 60% is used.
We can calculate the time it would take for an S-wave to traverse the same distance if P-waves take five minutes to reach the seismic station by dividing the P-wave time by 0.6:
Time for S-wave equals Time for P-wave / 0.6, or 5 minutes divided by 0.6 results in 8.33 minutes.
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beta-sheet protein structures can be stabilized by hydrogen bonding between distant residues on the same polypeptide. T/F
Answers
Beta-sheet protein structures can be stabilized by hydrogen bonding between distant residues on the same polypeptide. Hydrogen bonds form between the oxygen atom of the peptide bond of one residue and the nitrogen atom of another residue, allowing the beta-sheet to maintain its structure.
(True)
The stabilization of beta-sheet protein structures by hydrogen bonding:
Beta-sheet structures are a common secondary structure in proteins, formed by the alignment of beta-strands in an antiparallel or mixed parallel-antiparallel arrangement.Hydrogen bonding between the peptide bonds of distant residues on the same polypeptide chain can stabilize the beta-sheet structure by forming inter-strand hydrogen bonds.These hydrogen bonds can help to lock the beta-strands into position and prevent their unraveling, adding stability to the overall beta-sheet structure.The specific pattern of hydrogen bonding in a beta-sheet can also determine its overall shape and contribute to the unique stability and function of the protein.The hydrogen bonding network in beta-sheets can also help to create specific interfaces with other proteins or ligands, contributing to the function of the protein.Overall, hydrogen bonding is a critical factor in maintaining the stability and function of beta-sheet protein structures.Learn more about beta-sheet protein structures here:
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pongids: a. are incapable of walking bipedally b. can walk bipedally only by holding on to branches with their arms c. are capable of bipedal locomotion, but inefficiently d. are, in fact, habitually bipedal
Answers
One of the earliest adaptations made by hominids was bipedalism, and there are several theories as to how the human ancestors acquired it. One of them claims that after a group of our ancestors started living in Savannah habitats, bipedalism emerged (open areas covered with grasses). The Savannah lineages didn't have many trees to climb, so the upright posture let them see predators in the distance. Other lineages remained in the forests, where they could use the treetops and branches for protection and to collect food.
The second theory links the use of tools to the evolution of human bipedalism. The two forelimbs are free to explore the environment, aid in the use of tools, and even gather food while moving because a species does not move on all four limbs.
With this knowledge, we can conclude that bipedalism gave the human race a free arm to build technology and allowed them to move more slowly while walking, among other benefits.
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Identify which type of resources each product is prinicipally derived from
Answers
The type of resources each product is prinicipally derived from:
A. Renewable resources
1. Wood
2. Ice
B. Non Renewable resources
1. Gold
2. Natural gas
What is a difference between renewable and nonrenewable?Renewable energy sources come from natural components such as wind, water, the sun and even plant .
Whereas the Nonrenewable energy sources, are only present in limited quantities.
Thus, these are the answer.
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Answer:
renewable - Ice, Wood
nonrenewable - Gold, Natural Gas
Explanation:
I need answers now :((((
Answers
Answer:
D: Flowering plants only use sexual reproduction
Explanation:
Sexual reproduction would make the most sense since the question is why flowering plants are the most abundant.
Answer:
D. Flowering plants only use sexual reproduction.
Three steps to answering test questions correctly include a. Underlining, repeating, reading c. Reading, undoing, eliminating bReeding, underlining, erasing d. Reading, underlining, eliminating
Answers
Answer:
d. Reading, underlining, eliminating
Explanation:
edge 2020
Reducing, reusing, and recycling are used to Group of answer choices make more ores increase metal production burn fossil fuels conserve resources.
Answers
The 3R's are the reduce, reuse, and recycle the waste or products. Reduce is referred to diminish the use of certain products or resources, reuse is to repeated use of items, and recycle is to mold and develop into a new item.
Why are 3R's used?Reduce is referred to the lowering use of the substance, resources, or any other items.Reuse refers to the repeated benefit or a resource, item, or any substance.Recycling is the process of collecting and processing the materials again to avoid it throwing them in the trash.
The conservation of resources like water, fuels, and energy uses the three Rs.
Thus, the three R's are used for the conservation of resources.
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plsss help
Which statement describes the movement of carbon dioxide in the carbon cycle?
A.
The gas enters the hydrosphere as sugar dissolves in water.
B.
The gas enters the cryosphere as ice sheets melt.
C.
The gas leaves the biosphere as animals breathe in air.
D.
The gas leaves the atmosphere as plants use it to make sugar.
Answers
The gas leaves the atmosphere as plants use it to make sugar.
Carbon dioxide is used from the atmosphere and then converted into sugar by plants by the process of photosynthesis.What is carbon cycle?The carbon cycle is way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.Plants use carbon atoms in the form of carbon dioxide that is then converted into sugar.Hence, D option is correct.
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I need help on 13,14,15 please ASAP
Answers
Answer:
Email your teacher they will give you the answers try it yourself
Explanation:
Which characteristic do insects, crustaceans, centipedes, and millipedes have, but arachnids lack?
antennae
O multiple body sections
O multiple pairs of legs
wings
Answers
Answer:
A: antennae
Explanation:
Answer:
it's a
Explanation:
I just did the assignment
Energy flow within a system that contains life is necessary. Scientists have explored this idea in projects such as Biosphere 2 and conducted studies about the possibility of colonizing Mars. How might research on the flow of matter and energy through ecosystems be helpful to creating a colony on Mars?
Answers
Answer:
Energy flow is integral to any biological environment that supports life. Since energy can neither be created nor destroyed, it has to change from one form to another in order to maintain a balance. Everything within an ecosystem is interconnected, from plants as producers to herbivores that feed on the plants and the predators that feed on the herbivores. All of this will have to be established de novo at Mars using artificial means because the Mars atmosphere cannot naturally do this.
Hope that answers the question, have a great day!
The fovea has the greatest visual acuity in bright light primarily because the fovea is:.
Answers
The fovea has the greatest visual acuity in bright light primarily because the fovea is has the highest density of narrow and elongated cone receptors.
The light sensitive area of the eyeThe eye is one of the sense organs that is use for sight by mammals. It contains the following parts:
Pupils,Cornea,Choroid,Retina,Conjunctiva andlris.All the images refracted by the eye lens is focused on the retina.
The fovea is part of the retina that is made up of high concentration of cone cells that helps to maximize light detection.
Therefore, the fovea has the greatest visual acuity in bright light primarily because the fovea is has the highest density of narrow and elongated cone receptors.
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Distance time graphs can you be used compare the what of two different objects
Answers
Answer:
Recall that on a distance–time graph, the speed of an object is equal to the gradient of the line that represents its motion. Therefore, to compare the speeds of the objects, we'll calculate and compare the gradients of the two lines
Which process will directly result in organic matter being added to the soil?
water freezing in cracks of rocks
glaciers carving out a valley
river water eroding the banks of a stream
bacteria breaking down dead matter
Answers
Answer:
I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely
A. The two different cells become mutated.
B. The genes expressed in each cell are different.
C. They actually have different DNA in the two types of cells.
D. The genome of the different cells changes
Answers
A person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely differently due to the expression of different genes in each cell. Thus, the correct option for this question is B.
What are Muscle cells?Muscle cells may be defined as those cells that have the capability to shorten or contract in order to produce movement of the body parts. These types of cells typically facilitate the momentum of the whole body.
Each cell of the living organism including humans has the ability to turn on or off the functions of those genes which are required for their function or not. Due to this mechanism, the nerve cell synthesizes different genes with respect to the muscle cells irrespective of the DNA sequence.
Therefore, the genes expressed in each cell are different is a correct option with respect to this question. Thus, the correct option for this question is B.
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Why are water striders able to "walk on water"?
Answers
Answer:
Water striders can walk on top of water due to a combination of several factors. Water striders use the high surface tension of water and large hydrophobic legs to help them stay above water. Water striders use this surface tension to their advantage through their highly adapted legs and distributed weight.
Hope this helps :)
27. Use the graph to the right to calculate the lag time in months between the change in the densities of prey and the predator populations.
Answers
The graph is used to calculate the lag time in months between the change in the densities of prey and the predator populations.
The lag time in months between the change in the densities of prey and the predator populations can be calculated by the formula by intial and final time.The lag time is acquired via way of means of taking the later factors withinside the plot (while the plot is instantly) and drawing a instantly line via them, then extrapolating lower back to the horizontal axis intercept. The intercept might be the lag time.
What are predators ?Predators are normally carnivores (meat-eaters) or omnivores (eats vegetation and different animals). Predators will hunt different animals for food. Examples of predators are hawks, eagles.
Thus it is well explained.
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Why does the small intestine cell reproduce so often?
Answers
Answer:
Continual cell renewal allows the epithelium to withstand the constant wear and tear it suffers while breaking down food, absorbing nutrients, and eliminating waste.
Explanation:
Explain TWO reasons why it is important to develop alternatives to fossil fuel
energy sources,
Answers
2. They are not an unlimited resource and could run out at any minute. If they run out and we don’t have an alternative, we could be in a world of hurt.
A biology class wanted to study the effect of different materials on the melting rate of ice. They placed
pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in
paper, group 3 was covered in aluminum, and group 4 remained uncovered.
Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water,
was recorded at the end of
the experiment.
What is the dependent variable in this experiment?
A)The Type of covering
Material
B)The amount of melting Time
C)The starting mass of the ice
D)The Final mass of the ice
Answers
Answer:
The final mass of the ice
Explanation:
It’s in the name of our term: DEPENDENT variable. It relies on other parts of the experiment (the independent variable) to make it happen.
Answer:
D
Explanation:
Then final mass of the ice, minus the melted water, was recorded at the end of the experiment.
Find the 12 term of the geometric sequence 7,-35,175
Answers
To find the 12th term of a geometric sequence, we can use the formula:
\[a_n = a_1 \times r^{(n-1)}\]where:
- \(a_n\) is the nth term of the sequence- \(a_1\) is the first term of the sequence- \(r\) is the common ratio of the sequence- \(n\) is the position of the term we want to findIn this case, we have the geometric sequence:
7, -35, 175.The first term, \(a_1\), is 7.To find the common ratio, \(r\), we divide any term by its previous term:
-35 / 7 = -5175 / (-35) = -5The common ratio is -5.
Now we can plug in the values into the formula to find the 12th term, \(a_{12}\):
\[a_{12} = 7 \times (-5)^{(12-1)}\]\[a_{12} = 7 \times (-5)^{11}\]Calculating this expression, we get:
\[a_{12} = 7 \times (-48828125)\]\[a_{12} = -341796875\]Therefore, the 12th term of the geometric sequence 7, -35, 175 is -341796875.
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1) What is the rationale for experimental ablation method?
2) Explain the significance of the sham-lesion procedure.
2a) Explain how the activity of a brain region can be temporarily inactivated.
4) Compare and contrast the visual functions of rods and cones.
4a) Explain how the receptor potential produced in a photoreceptor by light generates action potentials within the retina.
6) Compare the anatomy and function of the dorsal and ventral streams.
6a) Describe the physical and psychological properties of sound.
7) Describe how the organ of Corti transduces sound waves into electrical potentials.
7a) Describe the neural pathways by which auditory signals for audition reach the cortex.
8) Explain how the brain codes for the spatial location of sound.
Answers
1) The experimental ablation method is a way of demonstrating the function of a particular brain region by removing it or inactivating it temporarily or permanently.
2) The sham-lesion procedure involves a similar surgical procedure to that of an ablation but without damaging the target area.
2a) Inactivation of a brain region involves the use of a drug or some other agent to temporarily disable or block activity within a particular region of the brain.
4) Rod cells are the primary photoreceptors for low-light conditions and are found in the outermost layer of the retina
4a) The generation of action potentials in the retina begins when a photon of light strikes a photoreceptor cell.
6) The dorsal stream is responsible for processing the object's location and motion.
6a) Sound is a physical phenomenon that is produced by the vibration of an object.
7) The organ of Corti is the sensory organ in the inner ear that is responsible for transducing sound waves into electrical potentials.
7a) The neural pathways by which auditory signals for audition reach the cortex begin in the cochlea.
8) The brain codes for the spatial location of sound by using several cues, including interaural time differences, interaural level differences, and spectral cues.
1) The rationale for this technique is that by making an animal brain-damaged in some particular region, researchers can learn more about how that region is involved in behavior. The major advantage of experimental ablation is that researchers can gain insights into what a particular brain region does by examining how a damaged brain differs from a normal one.
2) The purpose of this procedure is to create a control group with identical surgery minus the removal or inactivation of the target region. This allows researchers to control for any nonspecific effects of the surgical process.
2a) For instance, the drug muscimol, which is a GABA agonist, can be used to temporarily inactivate a specific brain area by binding to GABA receptors in that area.
4)Cone cells are photoreceptors that are responsible for color vision, visual acuity, and are found in the center of the retina. Rods are more sensitive to light than cones, and they provide better vision in dim light, while cones provide better vision in bright light.
4)The resulting receptor potential then travels from the photoreceptor cell to the bipolar cell, where it is further amplified. The resulting signal is then transmitted to the ganglion cell, which generates an action potential.
6)It sends information from the occipital lobe to the parietal lobe. In contrast, the ventral stream processes object recognition, sending information from the occipital lobe to the temporal lobe.
6a)The sound waves are propagated through a medium such as air, water, or a solid. The psychological properties of sound include pitch, loudness, and timbre.
7)When the basilar membrane vibrates in response to sound waves, the hair cells in the organ of Corti are also set into motion, generating an electrical signal that is transmitted to the brain.
7a) The auditory nerve carries information from the cochlea to the brainstem, where it is processed and sent to the thalamus. From the thalamus, the information is relayed to the auditory cortex in the temporal lobe.
8)The auditory cortex integrates these different cues to determine the location of a sound in space.
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What muscle attaches into the buccal vestibule?
Answers
The buccinator muscle attaches into the buccal vestibule. This muscle is a thin, flat muscle that forms the majority of the cheek's muscular structure.
Its function is to compress the cheeks against the teeth and prevent food from being trapped between the teeth during chewing. It also plays a role in speech and facial expressions. The buccal vestibule is the space between the cheeks and teeth, and the buccinator muscle is responsible for its structure and function. The muscle originates from the maxilla and mandible bones and inserts into the orbicularis oris muscle, which encircles the mouth's opening.
The muscle that attaches into the buccal vestibule is the buccinator muscle. This muscle originates from the outer surfaces of the maxilla and mandible and inserts into the orbicularis oris muscle at the corners of the mouth. The buccinator muscle plays a crucial role in mastication, as it helps to keep food between the teeth by pressing it against the upper and lower molars. Additionally, it aids in facial expressions and assists in blowing air out of the mouth. In summary, the buccinator muscle is the primary muscle attaching into the buccal vestibule, contributing to chewing and facial expressions.
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according to matt cartmill, why did natural selection favor the basic features of primate morphology
Answers
According to Matt Cartmill, natural selection favored the basic features of primate morphology due to their adaptive advantages in arboreal environments.
Primates exhibit several anatomical features that are well-suited for life in trees. One of the key features is their grasping hands and feet, characterized by opposable thumbs and flexible digits. These adaptations allow primates to efficiently grip branches and manipulate objects in their arboreal habitats. This grasping ability provides them with increased mobility, enabling them to navigate complex environments, obtain food, and escape predators.
Furthermore, primate vision is highly developed, with forward-facing eyes that provide stereoscopic and color vision. This binocular vision enhances depth perception and facilitates accurate judgment of distances, which is crucial for accurately judging branch positions and distances while moving through the trees.
Additionally, primate morphology includes adaptations such as a relatively large brain and complex cognitive abilities. These traits contribute to their problem-solving skills, social interactions, and adaptive flexibility in their ever-changing environments.
In summary, natural selection favored the basic features of primate morphology because they conferred advantages for survival and successful adaptation to arboreal habitats, including grasping hands and feet, binocular vision, and cognitive abilities.
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