A coelacanth is/has which of the following: A) An osteichthyan B) A living fossil C) A lobe-fin fish D) A swim bladder E) A vertebral column
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A coelacanth is/has the following: C) A lobe-fin fish and E) A vertebral column.
Coelacanths are lobe-fin fish, which is a group of fish characterized by their fleshy, lobed fins. They belong to the subclass Actinistia and are considered living fossils, as they have existed for millions of years and exhibit characteristics similar to their ancient ancestors. One of these characteristics is the presence of a well-developed vertebral column, which is the backbone that provides structural support and protects the spinal cord.
Coelacanths do not possess a swim bladder, which is a gas-filled organ found in some bony fish that helps control buoyancy. Instead, they rely on other anatomical features, such as their large, fatty pectoral fins, to control their buoyancy in the water. Therefore, D) A swim bladder is not a feature of coelacanths.
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Related Questions
help....................
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Answer:
However, 8th, 9th and 10th ribs are known as false ribs because they do not join sternum directly and they are attached to the coastal cartilage of the 7th rib.
which structure is highlighted? right facial vein right brachiocephalic vein right internal jugular vein right external jugular vein right brachiocephalic vein
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The external carotid vein descends down the neck vertically from the posterior angle of the jaw, crosses the shoulder girdle muscle, innervates the posterior triangle, and then connects with the subclavian vein.
Vein of the superior mesentery?It originates from the aortic arch and serves largely to supply the pancreas and a portion of the small and large intestine with oxygenated blood. The SMA gives birth to the inferior pancreaticoduodenal artery, which feeds the pancreatic head together with the superior abnormal activity artery.
Gateway vein of the liver?The portal vein is a blood artery that transports deoxygenated blood from the spleen and nearly all of the digestive system's intestinal system and empties into the branches of the liver sinusoids.
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What is the relationship between the mitochondria, the Krebs cycle and aerobic respiration?Group of answer choicesa.The Krebs cycle is part of aerobic respiration and takes place in the mitochondriab.The Krebs cycle and aerobic respiration are the same thing, which takes place at the mitochondriac.Molecules produced by the Krebs cycle are transported to the mitochondria to enter aerobic respirationd.The mitochondria produce molecules that the Krebs cycle needs for aerobic respiration
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The right response is a. Aerobic respiration includes the Krebs cycle, which happens in the mitochondria.
What connection exists between aerobic respiration and the mitochondrial Krebs cycle?The membranes of the organelles known as mitochondria are made particularly for aerobic respiration. The matrix of the mitochondria is where the Krebs Cycle operations take place. The mitochondria's inner membrane compartments serve as a platform for the electron transport chain and the majority of ATP production.
What connection exists between the Krebs cycle and the mitochondrial matrix?The Krebs cycle, named after its discoverer, is an enzymatic set of processes started by the conversion of pyruvate and fatty acids to acetyl coenzyme A, which takes place in the mitochondrial matrix. (acetyl-CoA).
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What do the levels of classification tell us about the relationship between organisms?
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Answer:
The more classification levels two organisms share, the more characteristics they have in common. ... Species with similar evolutionary histories are classified more closely .
is a step in the scientific method. The step that follows this step involves forming
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experiment
Explanation:
I jus looked it up tbh
There are____ of proteins and only 20
amino acids.
A. hundreds
B. thousands
C. millions
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Answer:
\( \huge{ \boxed{ \sf{Thousands}}}\)
Option B is correct.
Explanation:
There are thousands of proteins and only 20 amino acids.
Hope I helped!
Best regards! :D
~\( \text{TheAnimeGirl}\)
osmolarity-detecting cells located in the nuclei of the (click to select) are stimulated by an increasing blood solute concentration.
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An increasing blood solute content stimulates osmolarity-detecting cells in the hypothalamic nuclei, notably the supraoptic and paraventricular nuclei.
The control of antidiuretic hormone (ADH), also known as vasopressin, is the responsibility of these cells.Osmoreceptor cells in the hypothalamus notice changes when blood osmolarity rises, a sign of higher solute concentration. The posterior pituitary gland releases ADH as a result of the stimulation of the osmoreceptor cells, which then send signals to the supraoptic and paraventricular nuclei.Purification of urine and a reduction in water loss from the body are both aided by ADH's action on the kidneys to encourage water reabsorption. The release of ADH by the osmoreceptor cells in response to an increase in blood solute concentration contributes to maintaining correct osmolarity and fluid balance.
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External obliques, internal obliques, transversus abdominis, and rectus abdominus are abdominal muscles that will perform the following action when both sides areA. contracted.B. extension of the torso compression/flexion of the torsoC. rotation of the torsoD. lateral flexion of the torso
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The aponeurosis of the external oblique muscle forms the inguinal ligament. The inguinal canal is likewise formed by the muscle. Directly below the external oblique muscle is the internal oblique muscle.
Near the abdomen are the internal oblique muscles. These two muscles work together to support the spine's muscles and internal organs.
Additionally, by maintaining your important organs in their correct positions, you will shield them from injury. Oblique muscles help you stand up straight as well.
The first time an oblique injury, sometimes referred to as a side strain, occurs, it can produce severe rib cage pain. Over time, you can experience pressure and tightness on the front side of your abdomen or the lower ribs.
The inguinal ligament is made up of the external oblique muscle's aponeurosis. The inguinal canal is also helped to develop by the muscle. Under the external oblique muscle is the internal oblique muscle.
Internal oblique muscles are therefore directly superior to external oblique muscles in the torso.
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who establishes a crime scene?
A) Criminal Investigator
B) First Responder
C) District Attorney
D) Crime scene Photographer
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Answer:
Explanation:
Law enforcement establishes a crime scene of what happened.
exercise 3 - questions question 1 ▲ describe the similarities and differences between the cheek cell wet mount and dental plaque wet mount.
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The cheek cell wet mount and dental plaque wet mount are both microscopic techniques used to observe biological samples. However, they differ in terms of sample source, composition, and characteristics observed.
The cheek cell wet mount involves collecting cells from the inner lining of the cheek by gently scraping the mucosal surface with a swab or a tongue depressor. These cells are then placed on a microscope slide, covered with a coverslip, and observed under a microscope. The cheek cells are eukaryotic cells that contain a nucleus and other cellular organelles.
On the other hand, the dental plaque wet mount is prepared by collecting the sticky biofilm that accumulates on teeth surfaces. Dental plaque is composed of bacteria, saliva, food particles, and other substances. The wet mount is created by gently scraping the dental plaque from the teeth, suspending it in a liquid (such as saline), and placing it on a microscope slide for observation. Dental plaque provides insights into the microbial composition and structure of the biofilm.
In terms of similarities, both wet mounts allow for the observation of biological samples using a microscope. They provide information about cellular structures, morphology, and organization.
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When the DNA chain A-T-C-C-G-T-A-C replicates, it would make:
C-T-A-C-G-C-A-T
T-A-G-G-C-A-T-G
G-C-A-G-C-A-T-C
T-A-C-C-G-A-T-G
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Answer:T-A-G-G-C-A-T-G
Explanation: So A and T always bond in a DNA chain. An example to remember this is Apples grow in trees. C and G always bond. An example to remember this is Cars go in the garage.
10.1 the integrated human list the names of 10 body systems and the principle role of each in serving the rest of the body. a student runs up a flight of stairs. other than the skeletal system, which body system would be most immediate in its support of the muscular system in this activity?
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The ten body systems and their principle roles are:
Muscular system - movement and support of the body
Skeletal system - support and protection of the body
Circulatory system - transport of oxygen, nutrients, and waste products throughout the body
Respiratory system - exchange of gases (oxygen and carbon dioxide) between the body and the environment
Nervous system - coordination and control of the body's functions and responses to stimuli
Endocrine system - regulation of body functions through the release of hormones
Digestive system - breakdown and absorption of nutrients from food
Urinary system - elimination of waste products from the body
Immune system - defense against foreign invaders and pathogens
Reproductive system - production of offspring
Other than the skeletal system, the circulatory system would be most immediate in its support of the muscular system during the activity of running up a flight of stairs. The circulatory system delivers oxygen and nutrients to the muscles and removes waste products such as carbon dioxide, which allows the muscles to continue contracting and producing energy for the movement. The circulatory system also plays a role in regulating body temperature during exercise by transporting heat away from the muscles and to the skin, where it can be dissipated through sweating and other mechanisms.
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How is inheritance related to the process of natural selection?
A.
It promotes mutations of genetic material over time.
B.
It restricts the flow of DNA from one generation to the next.
C.
It reduces competition for mates and increases genetic continuity.
D.
It allows beneficial traits to be passed from generation to generation.
Answers
Inheritance is the passing of genetic information from one generation to another. Inheritance allows beneficial traits to be passed from a generation and aids in natural selection.
What are inheritance and natural selection?Inheritance is the process of passing genetic information from parents to the next generation by the process of reproduction. The traits of the parents are transmitted to their offspring by various mechanisms.
Natural selection is a process of evolutionary change that chooses the species that can adapt, survive and reproduce in altered unfavorable conditions. The species with favored traits are preferred and chosen over the species with unfavorable traits.
Therefore, option D. inheritance of the beneficial traits allows natural selection to occur.
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Bio U06 USA FY21 Question: 1-10
The pred math
pon in England changed in response to dhekenning forests due to air pollution during the intestina Age Dark colored mothes became much more common a chochote that hoped camouflage em
onda moes which por do the industrializational England were ligt in calce. Which is the most likely reason that de coloration became more common in pespered moth portions?
The orginal esperede producing
The pollution in the ait sed on the peppered owns causing disco con
Northern colored pred oths in the new women
Dark colon is a dominant at making it more kely to be passed on to the next generation
Pause
hp
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Answer:nature selected for the more fit dark-colored papered moths in the new environment
Explanation:
it just seems like the best answer
Why were dry bean incubations included in the experimental set-up?
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Dry bean incubations were included in the experimental set-up to serve as a control group and provide a baseline for comparison with other treatments.
Dry bean incubations were included in the experimental set-up to establish a control group. In scientific experiments, it is crucial to have a control group that is not subjected to any experimental treatments. The purpose of the control group is to provide a baseline against which the effects of other treatments can be compared. By incubating dry beans without any additional treatments, researchers can observe the natural changes and behaviors of the beans over time.
Including dry bean incubations as a control group helps researchers distinguish between the effects of the experimental treatments and the inherent variability in the beans themselves. This control group allows researchers to identify any changes or outcomes that can be attributed specifically to the experimental treatments, rather than natural variations in the beans' characteristics. It also helps in validating the reliability and reproducibility of the experimental results. By comparing the results of the treated beans with the control group, researchers can draw conclusions about the effectiveness or impact of the experimental treatments on the beans' growth, development, or other relevant parameters.
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What do all of the Jovian planets possess that none of the terrestrial planets does
natural satellites
water vapor
solid cores
numerous moons and ring systems
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A particular gene has two alleles, a dominant allele A and a recessive allele a. The frequency of allele A is 0.55 . If the population is in Hardy-Weinberg equilibrium with respect to the gene, then what is the expected frequency of genotype Aa?
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Answer:
0.495
Explanation:
because i did the question
The aye-aye lemur is a mammal that feeds mostly on insect larvae that live inside trees. The aye-aye lemur has a specialized middle finger that is long and thin. The aye-aye lemur moves along a tree branch and taps the branch with its specialized finger. When the aye-aye lemur hears a difference in the echo, it will tear open the bark with its teeth until the insect tunnel is exposed. The aye-aye lemur then uses its specialized finger to reach the insect larvae and remove it.
Which selective pressure most likely resulted in the development of the aye-aye lemur's special adaptation?
A.Limited availability of water
B.Competing for mates
C.Large numbers of natural predators
D Food sources that are hard to find
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Answer: D because the lemur sticks it’s middle finger in the tree to eat
Explanation:
Just took test
Adaptation is the process of survival to the environment and the surroundings. The development of the special adaptation is due to the food sources that are hard to find.
What are the adaptations?Adaptations are the specialized changes that an organism acquires for survival and reproduction in altered conditions so that their generations can be maintained.
The lemurs adapted to the thin and long middle fingers and teeth so that they can tear open and reach the insects living in the barks that are the food source for them.
Therefore, option D. hard sources of food led to the special adaptation.
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Which of these organisms is not matched to the main type of nitrogenous waste it excretes?
Reptiles−−uric acid
Terrestrial insects−−uric acid
Freshwater fishes−−ammonia
Marine fishes−−ammonia
Answers
The correct option is B -Terrestrial insects−−uric acid.
The species that is incompatible with the main sort of nitrogenous waste it excretes is an insect that lives on land. The correct response for terrestrial insects is "uric acid," not "ammonia."
The primary nitrogenous waste excreted by terrestrial insects, such as insects and spiders, is uric acid. Uric acid is a somewhat insoluble waste product that requires less water for excretion in organisms living in dry or terrestrial settings.
Hence option B is correct.
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coexistent sickle cell disease has no impact on the safety or outcome of lytic therapy in acute ischemic stroke
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The statement "coexistent sickle cell disease has no impact on the safety or outcome of lytic therapy in acute ischemic stroke" means that having sickle cell disease does not affect the safety or effectiveness of lytic therapy in treating acute ischemic stroke.
Lytic therapy, also known as thrombolytic therapy, is a treatment used to dissolve blood clots in the blood vessels of the brain during an acute ischemic stroke. It involves the administration of medication called tissue plasminogen activator (tPA) to break down the clot and restore blood flow to the affected area of the brain.
Sickle cell disease is a genetic disorder characterized by abnormal, crescent-shaped red blood cells that can block blood flow and cause various complications. However, studies have shown that the presence of sickle cell disease does not have a significant impact on the safety or outcome of lytic therapy in acute ischemic stroke.
It is important to note that this statement is based on scientific research and evidence. Medical professionals take into account various factors when deciding on the appropriate treatment for an individual with sickle cell disease who has suffered an acute ischemic stroke. It is always recommended to consult a healthcare provider for personalized advice.
In conclusion, having sickle cell disease does not affect the safety or outcome of lytic therapy in acute ischemic stroke. It is important to rely on scientific evidence and consult with healthcare professionals for personalized treatment decisions.
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heyy I need help do u mind helping please! the question is “The following model was used to show a molecule of methane, or CH4. Describe the number and type of each component of the molecule.”
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The type of molecule is a covalent bond where the carbon has a greater affinity of the electrons than the hydrogen.
What is covalent bond?A covalent bond has been defined as chemical bond that includes the sharing of the electron pair between the atoms.The pair of each electrons has been know as the bonding pairs and the stable balance of attractive and repulsive forces in between atoms.
The properties of covalent bond has the covalent compounds have low melting points and boiling points and generally the covalent compounds does not contain the electricity. The covalent compounds are having lower enthalpies of the vaporization as well as fusion.
The covalent compounds has been easily catches the fire and are more flammable in comparison to ionic compounds.The covalent compounds are very soft as well as flexible.The physical properties of covalent compounds are that they have lower melting points and electrical conductivity.
Therefore, The type of molecule is a covalent bond where the carbon has a greater affinity of the electrons than the hydrogen.
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moving from the equator towards the poles, the average skin color of human populations gets lighter. the main exceptions or interruptions to this pattern are in locations that:
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It has been hypothesised that a connection exists between skin colour, latitude, and intensity of UV light based on previous investigations of the association between human skin colour and distance from the equator.
The fundamental presumptions are that UV radiation is strongest at the equator and that it decreases uniformly in both the Northern and Southern Hemispheres as latitude increases. These presumptions form the basis of the common study of human skin tone, which assumes that skin tone is darkest at the equator and that skin tone decreases with latitude equally in both hemispheres. At identical latitudes, UV radiation is more in the Southern Hemisphere than the Northern Hemisphere. This variation in astronomical and climatic circumstances may have existed in the past at various times and may have had an impact on the development of human skin tone.
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Which of the following would scientists say is true about the universe?
A. The universe started out very cold and is getting
hotter with time.
B. The universe started out very dense and has become less dense with time.
C. The universe is the same age as the Earth.
D. The universe and our galaxy are the same thing.
Answers
Answer:
B. The universe started out very dense and has become less dense with time
Explanation:
Universe has been defined as the space that has been constituted of the galaxies and the solar system. The universe was very dense at first and now had become less dense. Thus, option B is correct.
What is the universe?Universe has been all of the space that has been constituted of the solar system that includes the galaxies, planets, sun, moon, stars, satellites, asteroids, meteoroids, and other celestial bodies. It has constituted all the forms of matter and energy.
The universe at the beginning was hotter and cooled with time. It is ancient from Earth and was very dense at first. Later with the passing of millions of years, the universe has become less dense.
Therefore, option B. with passing time the universe has become less dense than before.
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if anyone would please help me answer this question i would be helpfull
Answers
Correct answer is A) Generator
The part of a power plant that converts mechanical energy into electrical energy is called the generator or alternator.
The generator is typically driven by a b which is powered by a source of mechanical energy such as steam, water, or wind. As the turbine spins, it rotates the rotor within the generator, creating a rotating magnetic field. This rotating magnetic field induces an electric current in the stationary coils of wire, following the principles of electromagnetic induction.
This current is then collected and transformed into usable electrical energy, which can be transmitted and distributed to power homes, industries, and other electrical devices.
Rotor: Inside the generator, the spinning turbine is connected to the rotor, which is a shaft with a series of conductive coils or windings wrapped around it. The rotor is typically made of electromagnets or permanent magnets.
Stator: Surrounding the rotor is the stator, which consists of stationary coils of wire. These wire coils are arranged in a specific configuration and are connected to an external electrical circuit.
b Induction: As the rotor spins, it creates a rotating magnetic field. This rotating magnetic field induces a current in the stationary coils of the stator, following the principles of electromagnetic induction. The relative motion between the magnetic field and the wire coils causes electrons in the wire to move, generating an electric current.
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Question 5 of 10
Which statement best describes a link between the nervous and excretory
systems?
A. Action potentials in neurons remove wastes from blood.
B. Nerves connect the kidneys to the urinary bladder.
C. The excretory system removes wastes from nerve cells.
D. The brain controls the kidneys by sending nerve signals.
SUBMIT
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If an animal cell is placed in a hypotonic solution, it will undergo.
O endocytosis
O exocytosis
O cytolysis
O plasmolysis
Answers
Explanation:
Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell
Answer:
Hello Hanji please send phone number watsapp
The length of the ear is equal to the distance from the normal hairline to the
Answers
The length of the ear is a measurement from the top to the bottom of the ear, typically taken along the outer curve.
The distance from the normal hairline to the ear is the measurement from the point where the hair starts growing on the forehead to the top of the ear. This distance can vary depending on the individual's hairline and the position of the ear on the head.
It is important to note that the length of the ear and the distance from the hairline to the ear are not directly related, as one measures the ear itself while the other measures the distance between two points on the head.
However, both measurements can be useful in determining the overall proportions of the head and face. It is also worth noting that the hairline can vary greatly between individuals, and may change over time due to factors such as age, hormonal changes, and hair loss.
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if you wanted to present evidence that red panda populations were becoming less diverse over time, which choice correctly identifies the independent and dependent variables you would choose to use in your graph?
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The genetic diversity of red panda populations against time, you can visually demonstrate whether the diversity is decreasing over time, thus supporting your argument.
To present evidence that red panda populations were becoming less diverse over time, the independent variable would be the passage of time (years) and the dependent variable would be the diversity of red panda populations (measured in some quantifiable way such as genetic diversity or number of distinct subpopulations).
These variables would be plotted on a graph with time on the x-axis and diversity on the y-axis to visualize the trend over time.
If you wanted to present evidence that red panda populations were becoming less diverse over time, the independent and dependent variables you would choose to use in your graph are as follows:
Independent variable: Time (usually represented on the x-axis)
Dependent variable: Genetic diversity of red panda populations (usually represented on the y-axis)
By plotting the genetic diversity of red panda populations against time, you can visually demonstrate whether the diversity is decreasing over time, thus supporting your argument.
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explain why a transparent epidermis is an adaptation for photosynthesis
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Answer: A leaf’s upper epidermis is generally transparent that allowing the light to enter the leaf.
what is the name of the procedure that is performed to assess the intraocular pressure of the eye?
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The procedure performed to assess the intraocular pressure of the eye is called tonometry.
Tonometry measures the pressure inside the eye, which is known as intraocular pressure (IOP).
This measurement is crucial in evaluating and diagnosing conditions such as glaucoma, a group of eye diseases characterized by increased IOP that can lead to optic nerve damage and vision loss. There are different methods of tonometry, including the most common method called applanation tonometry, where a device gently touches the cornea to measure the pressure.
Other methods include non-contact tonometry, handheld tonometry, and digital tonometry. It's important to consult with an eye care professional for a proper assessment of your eye health.
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