Which of these is an example of a positive feedback loop?

Answer:

temperature

Explanation:

bearded dragons, as well as most other reptiles, rely on environmental temperature as well as both sex chromosomes. male bearded dragons carry the ZZ chromosomes while females carry ZW, but high temperatures during the embryo process can override the ZZ chromosomes in a male bearded dragon and will produce a female instead.

While the sympathetic nervous system prepares the body to respond to stressful situations, the parasympathetic nervous system takes it back to its normal relaxed state once the stressful factor is over. 1) sympathetic nervous system 2) parasympathetic nervous system.

When facing stressful situations, like a dog attack, the body responds through the sympathetic nervous system (SNS) which prepares the organism to escape from that situation.

Let us remember that the sympathetic nervous system and the parasympathetic nervous system compose the autonomous nervous system and have opposite effects on the organism.

During stressful moment, the sympathetic nervous system, SNS, produce an increase in heart-biting frequency and strength, blood pressure, overstimulate respiration, and dilatates respiratory tracts. The organism is alert and ready to escape.

When the affecting factor disappears, the parasympathetic nervous system is activated and the body recovers its balanced and relaxed state by reducing blood pressure and respiratory and cardiac frequency.

Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened. The 1) sympathetic nervous system starts to respond by increasing her heart rate and dilating her pupils. After running for a few minutes, Alma realizes that the dog has fallen far behind. At this point, her 2) parasympathetic nervous system starts working to relax her body by slowing down her heart rate and constricting her pupils.

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Complete question:

Fill in the blanks

Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened.

The (1)________ starts to respond by increasing her heart rate and dilating her pupils.

After running for a few minutes, Alma realizes that the dog has fallen far behind.

At this point, her (2)______ starts working to relax her body by slowing down her heart rate and constricting her pupils.

Production efficiency is defined as the percentage of energy assimilated by an organism that is converted into biomass.

Production efficiency = [tex]\frac{production}{assimillation}[/tex]

Production efficiency excludes losses within feces, trophic efficiency, by contrast, takes into account energy losses as found in feces.

The trophic efficiency is the efficiency at which mass or energy is transferred from one trophic level to the next through predation. The individual efficiency is the efficiency with which a typical individual turns its consumption into somatic growth.

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Answer:

Lumbar decompression surgery

The foraminotomy is the surgical procedure relieves pressure on a compressed spinal nerve.

A foraminotomy is a surgical procedure which increases the area around one of the bones in the spinal cord, this will relieves pressure on compressed nerves.  It is the minimally invasive procedure and helps to reduce pain which results from the pressure on the nerve.

Spinal cord is made up of bones called vertebrae, between these vertebrae there is disc shaped structure to provide support called as Intervertebral disc. Spinal cord have a small hole known as intervertebral foramen present between vertebrae through which information is send and received by the nerves present in spinal cord.

When these opening become small , the nerves compressed causes pains, tingling in the body and weakness. The surgeon cut on the back or neck, widen intervertebral foramen and remove the blockage.

So, the foraminotomy is the surgical procedure relieves pressure on a compressed spinal nerve.

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Hellbenders ( Cryptobranchus alleganiensis Daudin) are unique aquatic salamanders of the eastern United States that have experienced considerable population decrease because of habitat change and degeneration.

Sexual dimorphism is common in vertebrates that show male-male combat. The Eastern Hellbender manifest such combat and sexual dimorphism. Although hellbenders show sexual dimorphism in several morphological characters, the only dependable external morphological character is the appearance of swelling around the cloaca of males throughout the autumn breeding season.

Systems of genetic sex determination and the homology of sex chromosomes in different taxa differ greatly across vertebrates.

Much advancement remains to be made in understanding systems of genetic sex determination in non-model organisms, especially those with homomorphic sex chromosomes and/or large genomes.

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Selective medium permits the growth of a particular microbial type while the differential medium is used to distinguish between types of organisms.

Any organic, living system that performs as a separate entity is referred to as an organisms in biology (from the Ancient Greek v (órganon) "instrument, implement, tool" and - (-ismos)). Cells make up every living thing (cell theory). Taxonomy divides living things into categories like multicellular animals, plants, and fungi, or unicellular microbes like protists, bacteria, and archaea. All kinds of creatures are capable of responding to stimuli in some capacity and reproducing, growing, and developing. Multicellular organisms that distinguish specialized tissues and organs throughout development include squids, tetrapods, vascular plants, beetles, and mushrooms.Prokaryotes and eukaryotes are both types of unicellular organisms. The two distinct domains of bacteria and archaea are prokaryotes.

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The characteristic of renal cell carcinoma (RCC) is a predisposition to infiltrate the inferior vena cava (IVC) through the renal vein. According to estimates, such tumor thrombus extension occurs in 4–10% of instances.

The majority of treatment is still surgical excision because it has not been demonstrated that the existence of tumor thrombus affects survival. The lining of the proximal convoluted tubule, a portion of the tiny tubes in the kidney that carry primary urine, is where renal cell carcinoma (RCC), a kind of kidney cancer, develops. Renal cell carcinoma is the term for this.

The veins that drain the kidney are called renal veins. They join the vena cava inferior with the kidney. Some individuals instead have the left renal vein travel behind the abdominal aorta.

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Information presented in this population pyramid best justify that Nigeria has a faster rate of growth than any of its neighbors.

The population pyramid represents the breakdown of the population by gender and age at a given point in time. It consists of two histograms, one for each gender where the numbers are shown horizontally and the ages vertically.

There are generally three types of population pyramids created from age-sex distributions expansive, constrictive and stationary. A Population Pyramid is a graph that shows the age-sex distribution of a given population. It a graphic profile of the population's residents.

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Answer:

c

Explanation:

Recombinant DNA refers to a vector that contains foreign DNA. Cosmids, viral vectors, plasmids, and synthetic chromosomes are the four main categories of vectors.

Plasmids and bacteriophages are the two most used kinds of vectors. Plasmids are circular DNA molecules with one or more genes that are present inside the bacterial cell independently. The host bacteria depends on these genes in a significant way.

The bacterial colonies with the recombinant plasmids and colonies without them are mixed together while copying a gene using plasmid vectors. All the colonies have the same appearance, but some have adopted the plasmids containing the human gene, while others have not.

These were the original gene cloning vectors. These are present in eukaryotes, archaea, and bacteria. These DNA molecules are self-replicating, extrachromosomal, natural molecules.

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Eukaryotes that reproduce through reproduction require two cells to contribute genetic material for the production of the next generation is true.

Genetic material is defined as anything with genetic information that can be passed from one generation to the next, whether it be from a plant, animal, microbial, or other source.

It can also be defined as the means by which knowledge is passed from one generation to another.

There are basically three types of genetic materials.

Some of the properties of genetic materials are:

Thus, eukaryotes that reproduce through reproduction require two cells to contribute genetic material for the production of the next generation is true.

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The following are the differences of human and frog digestive systems:

1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.

2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.

3. Humans possess only a set of teeth while frogs possess two sets of teeth.

4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.

5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.

6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.

Blood is both a tissue and a fluid. It is a tissue because it is a collection of similarly specialized cells that serve particular functions. These cells are suspended in a liquid matrix (plasma), which makes the blood fluid.

A blood cell, also called a hematopoietic cell, hemocyte, or hematocyte is a cell produced through hematopoiesis and found mainly in the blood. Major types of blood cells include red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes). Blood is a fluid connective tissue. It is different from other connective tissues as its matrix is fluid and has no fibres. The fluid matrix of blood is known as plasma. Other connective tissues have elastic and collagenous fibres, unlike blood which has none.

the protein glucagon contains 29 amino acids in its active linear form. the minimum number of bases present in the mature messenger rna for this protein is 87 .

RRNAs, tRNAs, and snRNAs are ready for use in the cell after transcription and processing; they can be put together into ribosomes or snRNPs and employed in splicing and protein synthesis. The mature mRNA, however, is not yet useful to the cell. The encoded protein must be produced after translation. The genetic code contains the principles for converting from the "language" of nucleic acids to that of proteins. According to experiments examining the consequences of frameshift mutations, the deletion or addition of 1 or 2 nucleotides resulted in a loss of function, whereas the deletion or addition of 3 nucleotides permitted the retention of a significant amount of function. It was shown that the coding unit consists of three nucleotides.

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The distance in miles between two parallels which are 1 degree apart is 2.78km.

This is referred to as an imaginary line around the middle of a planet or other celestial body and divides it into two equal parts.

In this scenario we were told that the distance which is given is approximately 10,000km from the equator to the north pole.

We can also infer that there is 360 degrees in between extreme poles.

We were given distance from the equator which is 1000km

360 degrees =1000km.

The distance between 1 degree will be = 1000km /360                                                                                        

                                                                 = 2.78km.

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Answer:

the answer would be A) clues

Explanation:

theories would be what they draw from the fossils.

suspects doesn't apply as much as clues

and the bones didn't witness a thing.

International Code of Nomenclature is the International Code sets specific rules to help decide new scientific names or changes of names.

The International Code of Nomenclature for algae, fungi, and plants is the set of rules and recommendations that govern the scientific naming of all organisms traditionally treated as algae, fungi, or plants.

The rules and recommendations have one fundamental aim to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise. The code is meant to guide only the nomenclature of animals, while leaving zoologists freedom in classifying new taxa.

Scientific names is called a binomial name. The generic name or the initial part of the name highlights the genus to which an organism belongs.

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Answer:How does sugar influence human body? Why is child obesity such a common issue today? Should food culture be a part of the educational process in high school or college? What are antibiotics and how does humanity get used to it?

Explanation:

I hope this helps! If it does would you please mark me brainliest?

Bring oxygen, nutrients and other good things to every cell in your body are functions of the cardiorespiratory system.

Every cell in your body receives oxygen, nutrients, and other beneficial substances through the cardiovascular system, which is composed of your heart and blood arteries. Additionally, they remove trash and carbon dioxide. The cardiovascular system's primary role is to give nutrition and remove waste.

Your heart and blood arteries make up your cardiovascular system, which is an important component of your body. Your body's cells receive a constant supply of oxygen and nutrients from your blood when your circulatory system is functioning properly. Carbon dioxide and other waste are also expelled by blood vessels. Your heart and blood vessels can be kept healthy with your help. Keeping your blood pressure under control with exercise, balanced eating.

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Long-duration, moderate-intensity, high-intensity, brief duration are types of exercise that best develop metabolism efficiency.

The body converts food and liquids into energy through a process called metabolism. The calories from food and beverages combine with oxygen during this process to create the energy the body requires.

Even when in rest, a body need energy to function. This includes maintaining an even hormone balance, breathing, pumping blood throughout the body, and cell growth and repair. Basal metabolic rate, often known as basal metabolism, is the measure of how many calories a body burns while at rest.

Basal metabolic rate is mostly influenced by muscle mass. Body size and composition also affect basal metabolic rate. Even when at rest, people with more muscle mass or who are larger burn more calories.

Age. People typically lose muscle as they age.

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Statement  B. Every cell in an organism is identical. is part of the cell theory.

Cell theory is a scientific concept first formulated in the mid-nineteenth century, that residing organism is made of cells, that they're the simple structural/organizational unit of all organisms, and that each cell comes from pre-present cells.

The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all lifestyles come from preexisting existence. The cell theory is so installed nowadays that it bureaucracy one of the unifying ideas of biology. The mobile concept is important because it explains the idea of the cell and includes the subsequent postulates: The cellular is the fundamental unit of existence. All cells arise from pre-existing cells i.e Omnis cellula e cellula. All residing organisms on the earth are made from cells.

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Answer:

1. I'm pretty sure the answer is D osmosis.

2. The answer is A ( the cell will shrivel).

3. The answer is C.

4. The answer is C the cell membrane.

Explanation:

1. Osmosis, the process where water moves from less salty to saltier compartments, makes it so that freshwater fish never drink water! Instead, they absorb water through their gills because their bodies are saltier than the water around them

2.  A hypertonic solution is  type of solution that has a greater concentration of solutes on the outside of a cell when compared with the inside of a cell. Water crosses the cell membrane , but more water leaves the cell than enters it. Therefore, the cell will shrink due to exosmosis.

3. The mitochondria is THE POWERHOUSE OF THE CELL.

4. Well the cell membrane contains the axons of a cell ( or at least in animal cells), so I would have to say the answer is C.

Answer: 2. Forms 3. 72.3% 14. Weather 6. H2O and O2 9. Gas 11. Liquid to a solid 10. Release 8. More

Explanation:

sorry that’s all I know

The cell nucleus may be a membrane-bound organelle found in eukaryotic cells. The key work of the nucleus is to control cell development and duplication.

The DNA of a cell is found inside the cell's nucleus.

The cell nucleus could be a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single core, but many cell sorts, such as mammalian ruddy blood cells, have no cores, and several others including osteoclasts have numerous.

The most structures making up the core are the atomic envelope, a twofold film that encases the whole organelle and confines its substance from the cellular cytoplasm; much just like the cytoskeleton bolsters the cell as an entirety.

The DNA of a cell is found inside the core. It is sorted out into units known as chromosomes, each containing a long DNA atom that is related to different proteins.

The key work of the nucleus is to control cell development and increase.

This includes directing quality expression, starting cellular generation, and putting away hereditary fabric vital for all of these errands. In arrange for a core to carry out vital regenerative parts and other cell exercises, it needs proteins and ribosomes.

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Ligaments, which are robust bands of fibrous connective tissue, bind the bones together outside their articulating surfaces.

Ligaments assist to keep joints stable both at rest and while moving, and they also protect against injury from overextension and over flexion (excessive movements).

Tendon and ligament are strong, fibrous connective tissues that join bone with bone or muscle with muscle and convey the mechanical forces that support the skeleton and permit movement of the body.

Therefore, Together with the tendons and muscles, the system of ligaments in the vertebral column acts as a natural brace to help safeguard the spine.

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The Doctrine's central tenet is that the direct objects of feeling are the actions of sensory nerves, rather than properties external to the body.

The Doctrine of Specific Nerve Energies has had and continues to have a huge influence on perception physiology, psychology, and philosophy. In layman's terms, the Doctrine asserts that we sense the activity of our nerves first and foremost, rather than qualities in the external environment. The initial recognition of a stimulus as a result of physical stimulation of a receptor in a sense organ is referred to as sensation (e.g., eye, ear, etc.). The integration and interpretation of sensory information is referred to as perception.

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On Ediacaran bedding planes all across the world, microbial mats are frequently discovered alongside macro- and trace fossils. As wrinkled surface textures on bedding planes or, less frequently, as preserved collections of small pyritized filaments covering macrofossil surfaces, mats can be identified. Due to its cracked and wrinkled look, the "elephant skin" texture of MISS is arguably the most identifiable kind. Thin sections cut through bedding planes can also be used to identify microbial mats. They can be recognized by the distinctive orientation of the sediment grains or, on rare occasions, by the presence of microfossils of the original bacteria. Jim Gerling postulated in 1999 that Australia's vast microbial mats may have been crucial to the preservation of Ediacaran macrofossils.

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Answer:insulin

Explanation:

When blood glucose levels rise, your pancreas releases a hormone called insulin into your blood to help transport glucose to cells.

Insulin is a hormone produced by the beta cells in the pancreas. It plays a crucial role in the regulation of blood sugar levels by facilitating the movement of glucose from the bloodstream into cells, where it can be used as a source of energy.

When blood sugar levels are high, the pancreas releases insulin, which binds to receptors on cells and signals them to take up glucose from the bloodstream. This helps to lower blood sugar levels and keep them within a healthy range.

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Scavengers are organisms that eat other living things after they have died. The majority of scavengers are drawn to flowers that smell foul.

A scavenger is an organism that primarily consumes decomposing biomass in an ecosystem, such as animal carcasses or rotting plant matter. Carnivores include many types of scavengers. An organism that consumes meat is a carnivore.

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