The following characteristics describes the similar characteristics between lobe fish and tetrapods:
The joints in the pectoral and pelvic fins are similar to those in tetrapod (four-limbed terrestrial vertebrate) limbs. Amphibians were the earliest tetrapod land animals, and their fins developed into legs.Additionally, in contrast to ray-finned fish, which only have one dorsal fin, they have two dorsal fins with independent bases.
How are tetrapods and fishes closely related?
Tetrapods originated from a group of early semi-aquatic creatures known as the Tetrapodomorpha, which in turn descended from ancient lobe-finned fish (sarcopterygians) in the Middle Devonian period about 390 million years ago. Their forms were intermediate between lobe-finned fishes and true four-limbed tetrapods.
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much of the earth’s land area is covered by grasslands that are too dry to cultivate crops but capable of supporting grazing animals (bison, antelope, cattle, sheep, etc.) on a sustainable basis. humans are incapable of effectively digesting grass. on the dry grasslands, eating at what trophic level would produce the most food for humans?
Lower tropic level contain more energy as you move above the tropic level energy goes on decreasing .
Tropic level is the series of nutrition cycle or food chain in a ecosystem .organism are generally classified by their feeding behaviors'. first an the lowest of all tropic level is producer those are generally green plants . Trophic levels can be represented by numbers or by the name of that trophic level e.g. plants and algae are in trophic level 1, otherwise known as producers.
Generally, there are a maximum of four trophic levels in an ecosystem. Many consumers feed at more than one trophic level. Humans are primary consumers when they eat plants and vegetables and secondary when they eat animals .
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During the 1973 eruptions on the island of heimaey, residents used blank______ to build barriers that diverted lava flows away from their economically important fishing port.
During the 1973 eruptions on the island of heimaey, residents used blank Pyroclastic to build barriers that diverted lava flows away from their economically important fishing port.
What are Pyroclastic materials?
Pyroclastic material explodes from an explosive volcanic eruption; they are mostly emitted in fragments, resulting in ash fall deposits. Another name for pyroclastic material is cloud of ash. The flow usually moves very fast and is high in temprature. This is as a result of buoyancy provided by the vapors. Pyroclastic flows can extend miles from the volcano, and devastate life and property within limit.
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identify the greatest cause(s) of human mortality throughout time. check all that apply.question 23 options:a) trypanosoma b) plasmodium) neisseria gonorrhoeae d) mycobacterium e) anopheles) smallpox) treponema pallidum) yersinia pestisi) naegleria
Correct answer is option d. mycobacterium
What is mycobacterium?
In immunocompromised hosts, mycobacterial infection is a common cause of intestinal illness. Mycobacterium tuberculosis or Mycobacterium avium complex (MAC), an unusual mycobacterium similar to the type that causes cervical adenitis, may be secondary to this (scrofula). Typically, gut mucosa is directly penetrated by organisms that have been swallowed. MAC infection affects the luminal gastrointestinal tract, and significant thickening of the proximal small intestine is frequently observed (Fig. 50.26). Clinical symptoms of MAC patients include anorexia, diarrhoea, fever, and gradual wasting.
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Sha'Carri Richardson just ran her fastest race ever and won another gold medal. Knowing what you have learned about the cardiovascular, digestive and endocrine systems, how has her endocrine system contributed to his success? How does this activity support homeostasis?
The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.
What is circulatory system?A circulatory system has been defined as the system in the body that has been consists of the heart, blood vessels, arteries, veins and blood that all combined together to supply blood to all the parts of the body and takes up waste material from it.
Circulatory system have been four major components and these are heart, veins, arteries, and blood. These are the four components that combined and form cardiovascular system.
Therefore, The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.
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What is a flattened sac that reduces friction between adjacent structures during joint activity called?.
Bursae are small fluid-filled sacs lined by a synovial membrane that reduces friction between adjacent structures during joint activity.
What is synovial fluid?It is also called a joint fluid which is thick and located in between the joints. This fluid at the end of the bone reduces friction on the movement of joints.
Regular exercise, a healthy diet, and nutritional supplements increase synovial fluid and reduce joint pain and inflammation.
Bursae provide a cushion between bones and tendons around a joint. It reduces tension and wear and tear at points of friction and allows the free movement of joints. It reduces friction by separating the adjacent structures, preventing them from rubbing against each other.
It is present in large joints such as in the shoulders (ball and socket joint), Elbows , Hips, and Knees.
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Adenosine triphosphate (ATP) is considered to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do. ATP can power needed reactions by losing one of its phosphorous groups to form ADP, but you can use food energy in the mitochondria to convert the ADP back to ATP so that the energy is again available to do needed work. Complete the activity to order the general steps of the ATP-ADP cycle in aerobic cellular respiration.
Place these in order:
Krebs Cycle (Citric acid Cycle)
Glycolysis
ATP Hydrolysis
Transition Reaction
Electron Transport Chain
Answer:
●glycolysis
●the Krebs cycle
● electron transport chain.
The transition reaction does not take place in the stages of aerobic cellular respiration.
Compare and contrast semidiurnal tides, mixed semidiurnal tides and diurnal tides.
It is called a semi-daily or semidiurnal tidal pattern when the heights of the two highs and lows are roughly equal whereas a mixed semidiurnal tidal pattern is one in which the heights of the high and low tides vary. It is called a diurnal tide when areas have only one high and one low tide each day.
Since "diurnal" refers to a daily occurrence, a tide is said to be diurnal if there is just one whole tidal cycle every day. In the Gulf of Mexico, on Alaska's west coast, and in some regions of Southeast Asia, diurnal tides are typical.
Semidiurnal refers to "half of a day," and as one tidal cycle lasts for half a day, there are two full cycles per day. The majority of Europe, the west coast of Africa, the east coast of North America, and Australia all experience semi-daily tides.
The differences in height in mixed semidiurnal tides may be the result of amphidromic circulation, the angle of the moon, or any of the other variables. They are found along the Pacific coast of North America.
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respiratory alkalosis can be caused by a respiratory rate in excess of that which maintains normal plasma pco2 levels. what is a common cause of respiratory alkalosis? cluster breathing hypoventilation kussmaul breathing hyperventilation
Anxiety is the most frequent cause of respiratory alkalosis and hyperventilation. Other factors such as discomfort, low blood oxygen levels, fever are all the symptoms of respiratory alkalosis.
Respiratory alkalosis occurs when large quantities of carbon dioxide upset the blood's acid-base equilibrium, respiratory alkalosis results. People who experience erratic, fast breathing frequently experience it (hyperventilation). Treatment options include medicines to lower the risk of hyperventilation and more oxygen.
Your body works nonstop to keep the blood's acid-base (alkali) balance. When there is an imbalance between alkali and acid, alkalosis results. A change in breathing or metabolism can chemically alter the acid-base balance. This total process is known as Respiratory alkalosis.
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A certain plant species, found only in one particular stream valley in the
world, has a very shallow root system. An earthquake causes the stream to
change its course so that the valley in which the plant species lives
becomes very dry. As a result, the species dies out completely. The effect
of this change on this plant species is known as
The effect of this change on this plant species is known as Extinction
What is Extinction ?
Extinction is the phrase used to describe a known species for which no known individuals are still alive. Some extinct species can only be identified by their fossilized remains. Others used to be known to humans, but they are no longer. Others were pushed to extinction as a direct result of human abuse. Although a species that has gone extinct or undergone extinction no longer contributes to the evolution of creatures, it can nevertheless be used to better understand the relationships between animals that are still alive today.
The effect of this change on this plant species is known as Extinction
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Does the graph indicate that the ball decelerated? Explain your answer.
Answer:
yes bevause
Explanation:
When animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via ________
When animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via respiration.
What is meant by Decomposers?Decomposers may be characterized as a type of organism that significantly breaks down dead organic material. These organisms are essential for maintaining the balance on the earth's surface. These micro-organisms digest things that are dead or decaying and turn the dead plants and animals into humus.
Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere.
Therefore, when animals and plants die, decomposers return the carbon locked in their bodies back to the atmosphere via respiration.
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Which term describes a mutation where a chromosome breaks, and its genetic material is reinserted in a different orientation?.
Chromosomal Inversions: An inversion occurs when a chromosome breaks in two places; the resulting piece of DNA is reversed and re-inserted into the chromosome. Genetic material may or may not be lost as a result of chromosome breaks.
Inversion happens when a part of the chromosome breaks off, turn around, and becomes reaffixed. So, the order of the genes becomes reversed from what it was. While most cases of inversions go unnoticed and cause no gains or losses of DNA, they can lead to infertility or phenotypic reverberation.
An inversion can disrupt a gene, either by truncating the coding region of the gene or by placing its regulatory region far from the gene itself.
There are two kinds of Inversion mutation:
Pericentric Inversions- It happens when the centromere is included in the break. In other words, the break happens in the centre of the chromosome.
Paracentric Inversions- These occur when a chromosome breaks in one of its arms. In other words, the centromere is not incorporated.
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What is the term for innate patterns of behavior that are biologically determined rather than learned?.
The term for innate patterns of behavior that are biologically determined rather than learned is instinct.
The term "instinct" derives from the Latin word "instincts," which means "to lead." In other words, instinct is a process that has evolved to guide animals toward success in their environment.
For example, a bird's instinct tells it when to fly away from predators or when to land on branches and sing its mating song.
Instincts are also known as "animal instincts" or "basic drives," and they're often described as genetically inherited patterns of behavior that have been shaped by evolution over many generations.
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Communication scheme
Explain the following scheme, mentioning the type of communication, cells and molecules involved, type of ligand, type of receptors, and its secretory pathway
The given image is of the synapse. Transmission of impulse from the presynaptic neuron to postsynaptic neuron.
What are receptors?Although there are several varieties of receptors and ligands, they all come in closely matched pairs, with a receptor only being able to detect one (or a small number of) specific ligands and a ligand binding to just one (or a small number of) target receptors.
When a ligand attaches to a receptor, the receptor's shape or activity is changed, allowing the receptor to transmit a signal or cause a change in the cell directly.
Although there are many different kinds of receptors, they can be categorized into two groups: cell surface receptors, which are found in the plasma membrane, and intracellular receptors, which are found inside the cell (in the cytoplasm or nucleus).
The given image is of the synapse. Transmission of impulse from the presynaptic neuron to postsynaptic neuron.
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the sensory , such as the ear and eye, are sensitive to external or internal stimuli. organs receptors transduction adaptation mark this and returnsave and exit
The sensory organs, such as the ear and eye, are sensitive to external or internal stimuli.
Sense organs are specialized organs that aid in our ability to perceive our environment. They play a crucial role in how we live, and they give us the only ability to sense our surroundings. As a result of a specific physical phenomena, sense organs supply the necessary information for interpretation via numerous organs and a network of nerves. These senses control how we relate to and engage with the environment.
There are five sensory organs in humans:
Eyes
Ears
Nose
Tongue
Skin
The receptors in these five sense organs transmit information to the relevant areas of the nervous system via the sensory neurons. The receptors could be divided into two categories: the universal and unique receptors.
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How would we be able to eat food upside down? What muscle/organ is responsible for this
Why Pumule is also called the future shoot
Answer:
The plumule is the part of a seed embryo that develops into shoot, bearing the first true leaves of a plant. The radicle is the first part of a seedling (a growing plant embryo) to emerge from the seed during the process of germination.
Which vitamin plays a major role in maintaining the health of the epithelial cells?.
Answer:
Vitamin A plays a major role in maintaining the health of the epithelial cells
Explanation:
Vitamin A is essential for maintaining the health of epithelial cells throughout the body.
What is a product?
The "input" or ingredients of a chemical reaction
The "output" or end result of a chemical reaction
A deficiency in what trace mineral is associated with loss of taste, poor wound healing, and cessation of spermatogenesis?.
Zinc deficiency is linked to taste loss, poor wound healing, and the cessation of spermatogenesis.
What are the signs and symptoms of a zinc deficiency?Zinc deficiency occurs when the body does not have enough zinc. During pregnancy, childhood, and adolescence, zinc is essential for the immune system, wound healing, and proper growth and development. Zinc deficiency can cause initial skin changes that resemble eczema.The skin frequently develops cracks and a glazed appearance, particularly around the lips, diaper area, and hands. Lotions, steroid creams, and moisturizers have no effect on the rash.Some people cannot get enough zinc through diet alone. Because protein aids in zinc absorption, vegetarians and vegans, as well as those on long-term restricted diets, may be more vulnerable. Children on restricted diets and infants breastfed exclusively for more than six months are at risk of zinc deficiency.To learn more about zinc deficiency, refer to:
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Can someone help me (dont mind the answer I picked
The right reason to why the P waves and S waves are not received in the shadow zone is because P waves are refracted and S waves are absorbed in the earth's outer core.
As they move further into the Earth's mantle, P waves and S waves move faster.
Curvilinear pathways are followed as they move through the Earth, but when they cross the barrier between substances in various states, they abruptly shift course.
However, P waves can go through the liquid outer core but S waves cannot. Because of the Earth's changing density, waves are refracted as they pass through it. As a result, the waves follow curved pathways. Refraction causes an abrupt shift in direction of the waves when they cross the boundary between two separate layers.
What are the differences between P waves and S waves?
P waves can pass through solids, liquids, and gases, but S waves can only pass through solids. The structure of Earth can be determined by scientists using this information. Seismometers all across the world can measure the ensuing S and P waves, for instance, if an earthquake happens on one side of the Earth.
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if extinctions are generally a result of changes in the environment that a species is unable to adapt to, what do you think this indicates about the 5 previous mass extinctions and the 6th one occurring now? how long does it typically take for biodiversity to "recover" after a mass extinction?
Answer:
This indicates that extinctions can be both naturally-caused, such as by collapse in food chains due to a large meteorite striking the Earth, and human-caused, including habitat destruction, overharvesting, introductions of invasive species, climate change, and emerging diseases. Because much of the current environmental change caused by human activities is dramatic and sudden, many species may not be able to move or put in the time to avoid extinction. And, the recovery of biodiversity from previous mass extinctions took about 10 million years. The recovery from the present mass exitinction could take just as long-- 500,000 human generations.
State one negative environmental impact a greywacke quarry could have on the area where it is located at for paving is made.
Answer:
A dense fog warning
Explanation:
Please don't blame me if it is wrong. I'm just trying.
what is one way the vision of primates is different from that of other animals? group of answer choices primates have monochromatic vision. primates have open eye orbits not enclosed by bone. primates have overlapping vision fields. primates have eyes on the side of the head.
Primates have overlapping vision fields; this is way the vision of primates is different from that of other animals.
Any mammal belonging to the group that includes lemurs, lorises, tarsiers, monkeys, apes, and humans is referred to as a primate in zoology. After rodents (Rodentia) and bats, the order Primates has more than 500 species and is the third most varied group of mammals (Chiroptera).
The low, rounded morphology of the molar and premolar cusps, which contrasts with the high, pointed cusps or complex ridges of other placental animals, makes primate teeth distinct from those of other mammals. The difference makes it simple to identify fossilized primate teeth.
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enrichment media are media that have been supplemented with highly nutritious materials. for example, in blood agar, the blood is an enrichment ingredient which can be used by some bacteria to demonstrate their hemolytic capabilities. lysis of the red blood cells with complete destruction and use of hemoglobin by the microorganism is called:
Lysis of the purple blood cells with complete destruction and use of hemoglobin by using the microorganism is referred to as Hemolysis or hemolysis.
A pink protein is liable for transporting oxygen in the blood of vertebrates. Its molecule accommodates four subunits, each containing an iron atom certain to a heme group.
Your bone marrow desires iron to make hemoglobin, the part of the pink blood mobile that takes oxygen from your organs. Iron deficiency anemia may be a result of A weight loss plan without sufficient iron, particularly in infants, children, young adults, vegans, and vegetarians. positive capsules, ingredients, and caffeinated drinks.
Excessive hemoglobin tiers can result in dizziness, fatigue, easy bruising, and other signs and symptoms. depending on the underlying purpose of high hemoglobin, your healthcare company may additionally advise a remedy to eliminate excess red blood cells from your blood.
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What are the possible effects of contaminated water on the health of an individual or community? Explain your answer in terms of what causes the contamination, the types of infectious agents involved in the related diseases, and how these diseases can spread. (5 points)
Following are the possible effects of Water contamination
Germs and contaminants can contaminate drinking water at the source or in the distribution system after the water has been treated. Some of the sources through which dangerous bacteria and chemicals could infiltrate rivers include fertilizers, pesticides, or other chemicals that have been used to treat land close to waterways.
Dangerous microorganisms that may be present in contaminated water include the following:
GiardiaSalmonellaCrypstosporidiumEcoliLegionellaThe spread of diseases like cholera, diarrhea, dysentery, hepatitis A, typhoid, and polio is only one of the problems that contaminated water and poor sanitation may cause. People face avoidable health risks when water and sanitation facilities are insufficient, poorly managed, or unavailable.
Drinking contaminated water can expose one to bacterial, viral, and protozoal illnesses.
Many of these are pathogens, which after consumption can swiftly send a person to the hospital.
The greatest hazard to underdeveloped countries comes from microbial infection. Both a general lack of appropriate water treatment facilities and a constrained supply of clean water contribute to this. Giardia and Cryptosporidium in particular, constitute a menace to contemporary culture.
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In this food web, which term best describes the pinfish? *
O Primary Consumer
O Producer
O Secondary Consumer
O Tertiary Consumer
Answer:
can you show us the food web it won't work without it
Please Please answer the question in the photo! (will mark Brainliest)
Answer:
Low plasma sodium occurs when you have an abnormally low amount of sodium in your blood or when you have too much water in your blood, so I would say the answer is the 2nd one.
Explanation:
uhhh...help im dum
tyyyyyy
Which conclusion can be drawn based on the discovery of thick-shelled clam fossils in an area?
Responses
The area was once at the bottom of a deep ocean.
The area was once at much higher elevations.
The area was once part of a shallow or coastal sea.
The area was once cut through with many rivers.
The conclusion which an be drawn based on the discovery of thick-shelled clam fossils in an area is that the area was once at the bottom of a deep ocean and is denoted as option A.
What is a Fossil?
This is a term which is referred to as the remains of plants and animals which have been preserved in the earth crust. Fossil are used for various reasons such as determining the age and evolutionary history of organisms .
On the other hand, a clam is a mollusc which has no gut or functional digestive system and it uses energy in hydrogen sulfide to replace sunlight via bacteria. Giant clams are mostly found in the deep parts or areas of oceans.
This therefore means that the area where the fossil was found has ties with the deep parts of the ocean and is therefore the reason why option A was chosen.
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