_______ are slender projections on the tips of some taste bud cells that extend into the taste pore.

Answers

Answer 1

The microvillus are tiny hair- like membrane that greatly increase the amount of surface area of the cells for better reception. It plays a major role in the tongue that are responsible for sending signals to the brain which then decides the taste of the food particle that is on the tongue.

The long and slender structure gives greater space for absorbing the data and then convert them into signals. Hence the microvillus are the slender projections on the tips of some taste bud cells that extend into the taste pores


Related Questions

What bacterial species can be eliminated as possibilities for the bacteria responsible for Anna’s infection? Explain your reasoning.

Answers

The bacterial species that can be eliminated as possibilities for Anna’s infection are gram-positive bacteria such as Streptococcus pneumonia, Streptococcus pyrogenes, Bacillus megaterium, and Micrococcus luteus. Based on the isolated bacteria, the resultant colonies produce a rod-shaped gram-negative bacterium, which is the bacterial species responsible for Anna’s infection.

 

A scientist conducts a test and finds out that the LD50 of a certain chemical is 20 mg per kilogram. Explain what this means.

Answers

The short answer is: The scientist means that a dose of 20 mg per kilogram is enough to kill one half or fity percent of the animals used in the test. LD stands for leathal doseage. The 50 means 50 percent. Subsequently a dose of 20 mg per killogram has a lethal dose that will kill 50% of the test subjects.

Which of the following is not one of the "5Rs"? A. Recycle B. Rethink C. Reduce D. Reinvent

Answers

B is the answer hope it helps

The answer is actually D. Reinvent

100%

Explanation: 5Rs

Reduce, Reuse, Recycle, Rethink, Repair

Which two statements correctly describe one similarity and one difference between cellular respiration and photosynthesis?


1. cellular respiration and photosynthesis both involve water.

2. cellular respiration uses sugar, and photosynthesis produces sugar.

3. cellular respiration and photosynthesis both use light to produce energy.

4. cellular respiration requires light energy, and photosynthesis requires chemical energy.

Answers

The correct answers are:
1. cellular respiration and photosynthesis both involve water.
Water is broken down to form oxygen during photosynthesis, while in cellular respiration oxygen combined with hydrogen forms water.

2. cellular respiration uses sugar, and photosynthesis produces sugar. Photosynthesis makes the glucose that is used in cellular respiration to make ATP. 
Final answer:

One similarity between cellular respiration and photosynthesis is that both involve water. A difference is that cellular respiration uses sugar while photosynthesis produces sugar.

Explanation:

The two statements that correctly describe one similarity and one difference between cellular respiration and photosynthesis are:

Cellular respiration and photosynthesis both involve water.Cellular respiration uses sugar, and photosynthesis produces sugar.

The first statement indicates a similarity between the two processes, as both involve the molecule H2O. In photosynthesis, water is split and its electrons are used to replace those lost by chlorophyll in the light dependent reactions. In cellular respiration, water is a product of the reaction. The second statement elucidates a difference between the processes: Cellular respiration uses glucose as an input (reyielding ATP and carbon dioxide in the process), while photosynthesis generates glucose (using energy from the sun, water, and carbon dioxide).

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what is a branch point on a cladogram

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A cladogram is a chart which demonstrates cladistics. A branch point on a cladogram branches off from a common point in a cladogram, which shows that the two organisms share a common ancestor. Hope this helps! (:

A branch point on a cladogram denotes where an ancestral lineage splits into distinct new lineages, indicating evolutionary divergence. Sister taxa refer to two lineages from the same branch point, while a polytomy indicates more than two lineages, highlighting unresolved relationships.

A branch point on a cladogram, also known as a phylogenetic tree, represents the location where a single ancestral lineage splits into two or more distinct new lineages. This divergence is crucial for understanding evolutionary relationships among different species.

For example, when two new lineages stem from the same branch point, they are called sister taxa. If more than two lineages emerge from a branch point, it is referred to as a polytomy, indicating unresolved evolutionary relationships.

An ecosystem consists of all interactions within ____________ in a given area, along with interactions between their physical environment.

Answers

Final answer:

An ecosystem consists of all interactions within biotic and abiotic factors in a given area, along with interactions between their physical environment.

Explanation:

An ecosystem consists of all interactions within biotic and abiotic factors in a given area, along with interactions between their physical environment. Biotic factors include plants, animals, and microorganisms, while abiotic factors include sunlight, temperature, water, and soil. For example, in a forest ecosystem, the biotic factors would include trees, animals like deer and birds, and microorganisms like bacteria, while the abiotic factors would include sunlight, temperature, rainfall, and soil composition.

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Final answer:

An ecosystem includes all interactions among living organisms and their non-living environment in a particular geographic area. These ecosystems can be of any size, and life within them often involves competition for limited resources. The physical environment also influences which organisms can exist in a particular ecosystem.

Explanation:

An ecosystem consists of all interactions amongst the biotic components (living organisms) in a given area, along with interactions between their abiotic (non-living) environment, such as air, water, and soil. Ecosystems can vary in size, from small ones like tide pools near the rocky shores of oceans, to large ones like the Amazon Rainforest in Brazil.

Life in an ecosystem often involves competition for limited resources, which occurs both within a single species and between different species. These resources provide the energy for metabolic processes and the materials to make up organisms' physical structures. Other critical factors influencing community dynamics are components of its physical environment: a habitat's climate, elevation, and geology. These can all be important environmental variables that determine which organisms can exist within a particular area.

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A population of Purple Gorillas feeds entirely on plants. But some of these Gorillas are good at digesting Plant A, while others are good at digesting Plant B. Still other Purple Gorillas are good at digesting Plant C. What might be an advantage of a single population of animals, such as the Purple Gorilla, having a very large amount of variability surrounding certain traits?

Answers

The species has a higher chance of survival as there are 3 plant types, even if 2 of those die out, there's a portion of the purple gorillas that can still eat the remaining plant type

Species has a higher chance of survival as there are 3 plant types, even if the other 2 of those die out, there's a portion of the purple gorillas that can still eat the plants that are left

Anabolism includes reactions in which ________.
a. ketone bodies are formed
b. structural proteins are used as a potential energy source
c. larger molecules or structures are built from smaller ones
d. carbohydrate utilization increases

Answers

Anabolism includes reactions in which larger molecules or structures are built from smaller ones, for example the synthesis of glucose. Catabolism on the other hand describes processes that breaks down complex structures into simple ones. Examples of catabolic processes include glycolysis and the citric acid cycle among others. 
Final answer:

Anabolism includes reactions in which c. larger molecules or structures are built from smaller ones.

Explanation:

Anabolism is the set of metabolic processes in living organisms that build complex molecules from simpler ones, often requiring energy input. It is the opposite of catabolism, which involves the breakdown of complex molecules into simpler ones, releasing energy. Anabolic processes are crucial for the growth, repair, and synthesis of cellular components.

Anabolism includes reactions in which larger molecules or structures are built from smaller ones. It is the process by which the body utilizes energy to construct complex molecules like proteins, nucleic acids, and carbohydrates. This is in contrast to catabolism, which involves the breakdown of complex molecules into simpler ones.

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Green beetles are a favorite treat of the blackbird. They live on the green foliage in a local temperate forest. Unfortunately, drought has caused most of the trees to die out in the leaves to turn brown. How can this environmental change impact the population of the green beetle?

Answers

The change in color of the foliage can lead to a decrease in numbers of the green beetles. With the color of the leaves changed the beetles are unable to blend in and hide from the blackbird, making them vulnerable to their attacks. 

The change in color of the foliage can lead to a decrease in numbers of the green beetles.

What is Camoflougae?

A defense mechanism or strategy used by creatures to disguise their appearance, camouflage, also known as cryptic coloring, usually allows them to fit in with their surroundings.

To conceal their location, identity, and movement, organisms use camouflage.

The camouflage of a species depends on a number of variables. The organism's physical traits are crucial. For example, animals with fur use different camouflage strategies than those with feathers or scales. Scales and feathers can be shed and replaced very frequently.

Therefore, The change in color of the foliage can lead to a decrease in numbers of the green beetles.

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Every few years a giant axe chops off the head of every person who is over 6 feet tall. how will this affect the human population

Answers

The average height of the general population will gradually reduce as tall people continually die. Funny question though XD

Which is a highly contagious bacterial infection of the lungs? tuberculosis streptococcus meningitis emphysema?

Answers

The right option is Tuberculosis

Tuberculosis is a contagious, airborne disease of the lungs caused by the bacterium; Mycobacterium tuberculosis. The bacteria is released from the lungs into the air when an infected person sneezes, spits, or cough and this makes the disease highly contagious as it can be easily transmitted to others.







An example of non-point source pollution that could have an impact on a species population and system composition would be:

Answers

Nutrient run-off from agricultural fields. 

All cells contain a phosphate buffer system within their internal fluid to help maintain a constant pH. This system can be summarized by the following chemical equation: H2PO4- (aq) H+ (aq) + HPO4-2 (aq) This system mostly contributes to which of the following cellular activities


A.
maintaining homeostasis
B.
reproduction
C.
natural selection
D.
acquiring energy

Answers

The correct answer is A. maintaining homeostasis.
Homeostasis is a term referring to an organisms continuous process of maintaining and auto-regulating the conditions of its internal environment. Variables such as pH, temperature, and fluid balance need to be at optimal conditions in order for the organism to function properly.
In this example, the phosphate buffer system permits the organisms to maintain a constant pH in their intracellular fluid. This is one of the organism's homeostatic mechanisms.     

What carries blood away from the heart and to the body answers?

Answers

The aorta carries oxygenated blood from the right ventricle to the rest of the body for energy and metabolism.

Which conclusion may be made when comparing fossils in undisturbed strata of sedimentary rock?

Answers

When comparing fossils found in undisturbed layers of ground the most common conclusion is the age of the fossils. More specifically, in this way can be seen the time period in which the fossils found were living, and also the approximate age of them. By comparing them, can be seen the evolution of them, and what has caused it.

Rainforest destruction, biodiversity, topsoil conservation, water quality, water quantity, and global climate are all associated with

Answers

ecology is the study of the eco-system
Final answer:

Rainforest destruction, biodiversity, topsoil conservation, water quality, water quantity, and global climate are all topics related to environmental science. Deforestation leads to a decrease in biodiversity, potential loss of unique species, and drugs, as well as issues regarding water quantity, quality, and global climate.

Explanation:

The issues of rainforest destruction, biodiversity, topsoil conservation, water quality, water quantity, and global climate are all associated with the larger concept of environmental science. For instance, when we discuss rainforest destruction, we are looking at the loss of a significant part of biodiversity on a global scale. Rainforests contribute to the regulation of global climate and also play a major role in maintaining the quality and quantity of water. Deforestation leads to soil erosion, whereby the topsoil is washed away, leading to a major loss in soil fertility.

Also, rainforests are home to countless unique species and potentially world-changing drugs. Losing these forests essentially means endangering these species and missing out on potential scientific discoveries. Therefore, it is crucial that we focus on environmentally sustainable practices to prevent further damage to these vital ecosystems.

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The diagram below shows some relationships between ecosystems near the Sonoran and Chihuahuan Deserts. In which category does the thornscrub ecosystem belong?

Answers

shrubland should be the correct answer

Answer: B. Shrubland

Thornscrub ecosystem is found in between the Sonoran and Chihuahuan Deserts. It is typical shrubland. It consist of small trees like velvet mesquite and shrubs like Catlaw acacia, cactus which are common in Sonoran Desert. The Thornscrub shrubland exhibit distinct wet and dry seasons therefore, it possess growth of annual and perennial herbs. Therefore, the vegetation is determined by alternating dry and wet seasons.  

Which makes photovoltaic systems especially useful?

Answers

they generate electricity

Answer:

They generate electricity.

Explanation:

What could potentially happen if an intramuscular vaccine is administered too high?

Answers

An intramuscular injection is a technique delivering a medication that is deep into the muscles. If intramuscular is administered too high then the efficacy of the vaccine might be reduced as it is not injected in the right site. It might also cause to injure blood vessels so it should be injected in the correct site and depth.

Long-term studies of belding's ground squirrels show that immigrants move nearly 2 km from where they are born and become 1%-8% of the males and 0.7%-6% of the females in other populations. on an evolutionary scale, why is this significant?

Answers

Long-term studies of Belding's ground squirrels show that immigrants move nearly 2 kilometers from where they are born and become 1%-8% of the males and 0.7%-6% of the females in other populations. On an evolutionary scale, why is this significant?

These immigrants provide a source of genetic diversity for the other populations

Belding's ground squirrels are the type of rodent that often immigrate after being born. This immigration process is significant in evolution as it provides genetic diversity to the population.

What is genetic diversity?

Genetic diversity has been defined as the variability in the inheritance of traits in a species of th same population. It is part of adaptation and evolution that aids in the survival of the species in an unfavorable situation.

Immigration is one of the factors that contribute to the genetic diversity of the species as new genes beneficial for survival are passed to the offspring that can be naturally selected over another. It is essential for natural selection and the evolutionary process.

Therefore, the migration of the squirrels results in genetic diversity.

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Which of these are characteristics of all animal cells? Check all that apply. They contain a nucleus. They are eukaryotic. They lack membrane-bound organelles. They lack a nucleus. They are prokaryotic. They contain membrane-bound organelles.

Answers

Animal Cells:

-Contain a nucleus.
-Are eukaryotic. All plants and animals possess eukaryotic cells.
-Contain numerous membrane-bound organelles. 

Ans.

Animals are multicellular, eukaryotic organisms that belong to domain eukarya. They have cells with membrane-bound cell organelles, such as mitochondria, endoplasmic reticulum, nucleus, Golgi body, and lysosomes. In these organisms, genetic material is present inside the nucleus (known as true nucleus), which is surrounded by double-membrane system.

Thus, the correct options are:

-They contain a nucleus.

-They are eukaryotic.

-They contain membrane-bound organelles.

What separates the oral cavity from the nasal cavity?

Answers

It is the hard palate that separates the oral cavity from the nasal cavity.
Final answer:

The structure separating the oral and nasal cavities is called the palate. It consists of a hard and soft part, effectively allowing us to breathe and eat simultaneously.

Explanation:

The structure that separates the oral cavity from the nasal cavity is called the palate. The palate is composed of two parts. The front, hard part of the palate is made up of bone and is covered by a mucous membrane; this is known as the hard palate. The back part, which is softer and flexible, is the soft palate. The palate forms a barrier or separator between the oral and nasal cavities, allowing us to breathe and eat at the same time without the food going into the wrong pipe.

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what are autotrophs?

Answers

An autotroph is an organism that can create nutritional organic substances from inorganic substances 

Answer:

autotrophs are organisms that make their own source of food. A plant is an autotroph.

Explanation:

How is the division of the cytoplasm different in plants and in animals?

Answers

The most observable difference is the way in which cytokinesis occurs. In plants a new cell wall is fashioned between the new daughter cells, while in animal cells the cell membrane constricts to pinch the parent cell into daughter cells.

Which level in a food web contains the highest amount of total available energy

Answers

Answer:

producer

Explanation: Energy first flows into a food web through primary producers. Moving up each of the trophic levels, the available energy reduces by around ten percent each time. Thus, the amount of energy available to consumers or decomposers is much less than that of the producers. (study island)

A hummingbird needs 10 grams of sugar and 8 grams of protein each day. one honeysuckle flower provides 20 mg of sugar and 10 mg of protein. one nasturtium flower provides 10 mg of sugar and 10 mg of protein. it takes 5 seconds to feed from a nasturtium and 20 seconds per honeysuckle. how many minutes does it take to get exactly the food it needs?

Answers

The hummingbird's nutritional needs daily are 10,000 mg of sugar and 8,000 mg of protein.

Since one nasturtium flower provides 10 mg of sugar and 10 mg of protein, the hummingbird needs 1000 nasturtium flowers each day for its nutritional needs (10,000/10 = 1000).
Since one honeysuckle flower provides 20 mg of sugar and 10 mg of protein, the hummingbird needs 500 honeysuckle flowers each day for its nutritional needs. 
If the hummingbird feeds only on nasturtium flowers, then the bird will need 5,000 seconds to get exactly the food it needs. This is calculated based on the information that it takes 5 seconds to feed on a nasturtium: 1000 flowers daily * 5 seconds = 5000 sec = 83,3 min. 
If the hummingbird feeds only on honeysuckle flowers, then the bird will need: 500 flowers * 20 seconds = 10,000 sec = 166,6 min.

A hummingbird needs 10 grams of sugar and 8 grams of protein each day. One honeysuckle flower provides 20 mg of sugar and 10 mg of protein. One nasturtium flower provides 10 mg of sugar and 10 mg of protein. It takes 5 seconds to feed from a nasturtium and 20 seconds per honeysuckle. She need 83.3 minutes and 166.6 minutes from nasturtium flower and honeysuckle flower respectively.

Further Explanation:

The hummingbirds require 10g of sugar and 8g of protein each day. Honeysuckle gives 10mg of protein and 20 mg of sugar. Nasturtium gives 10mg of protein and 10 mg of sugar. For calculation, unit of each measurement should be same.  So, the hummingbird requires total 10,000mg of sugar and 8000 mg of protein.

First case, if humming bird is taken sugar and protein from honeysuckle. The bird takes 20 second to eat each honeysuckle. The hummingbird requires 500 honeysuckle flowers each day to fulfill its nutritional needs. If the hummingbird depends only on honeysuckle flowers, then the bird will need: 500 flowers * 20 seconds = 10,000 sec = 166.6 min.

The hummingbird needs 1000 nasturtium flowers each day for its nutritional needs (10,000/10 = 1000). If the hummingbird depends only on nasturtium flowers, then the bird will require 5,000 seconds to get exactly the food it needs. This calculation is based on the information that it takes 5 seconds to feed on a nasturtium: 1000 flowers daily * 5 seconds = 5000 sec = 83.3 min.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Animal physiology

Keywords:

Humming bird, sugar, protein, measurement, honeysuckle, depend, require, nasturtium, need, bird, information, flower, nutritional need, eat.

Which excretory organ filters the blood to remove excess water, urea, and cell waste?

Answers

Your kidneys will filter the blood so as to remove excess water, urea, cell waste, with the additional removal of salts! Hope this helps!

Damage to the enteric nervous system that innervates the digestive organs could affect:

Answers

I think the damage to the enteric nervous system that innervates the digestive organs may affect the motility. The digestive motility or the gastro intestinal motility is defined by the movements of the digestive system, and the transits that contents within it. If the nerves or muscles in any position of the GI tract do not function with their normal strength and coordination, an individual develops symptoms related to motility problems.

What prevented early plants from moving far from water?

Answers

Is they easily dried out

The transition from water to land was a significant evolutionary leap for plants and presented several challenges. Several factors such as Lack of Structural Support, Water, Water and Nutrient Acquisition, and Reproduction limited their ability to move far from water.

Lack of Structural Support: Early plants lacked the rigid structures found in their modern counterparts, such as vascular tissues and specialized cells like tracheids and vessels.

These structural adaptations help plants transport water and nutrients against gravity, allowing them to grow taller and establish themselves on land. Without these adaptations, early plants were limited in their ability to support themselves away from water.

Water and Nutrient Acquisition: Water is essential for plant survival, and early plants were dependent on their immediate surroundings for water availability.

They lacked extensive root systems that could efficiently extract water from the soil. Staying close to water sources like lakes, rivers, or damp soil ensured a steady supply of water for their survival and reproduction.

Reproduction: Early plants had reproductive mechanisms that relied on water for the transfer of sperm to the egg.

For example, mosses and liverworts produce swimming sperm that require a film of water to reach the egg for fertilization. By remaining close to water bodies, they ensured that their reproductive processes were successful.

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How is the structure of chloroplast adapted for its function?

Answers

Many grana, large surface area for photosynthetic pigments, electron carriers and ATP synthase enzymes. Photosynthetic pigments are arranged into structures called photosystems, allows maximum absorption of light energy.
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