_____ are usually caused by overuse or improper conditioning of the leg muscles

Answer:

33 joints, 26 bones, and more than a hundred muscles

That's how many bones joints and muscles a human foot have

Answer:

The cell membrane is composed of a fluid mosaic model

fluid refers to the phospholipid bilayer

phospholipid consists of a hydrophilic head (water-loving) and hydrophobic tail (water-hating), hence the hydrophilic heads should be facing outside in contact with the body fluids, and the hydrophobic tails are concentrated in the core part of the phospholipid bilayer

mosaic refers to the proteins embedded onto the cell membrane

there are three types in total

1. Channel proteins 2. Carrier proteins 3. Enzymes (which facilitate digestion)

hope this helps!!!!

Phospholipids, glycolipids, protein, and cholesterol play important roles in the cell layer.

Phospholipids are phosphorus-containing lipids. Glycolipids are lipids that include sugar. The last option is only found on the cell film's exterior surface, acting as separate surface identifiers for the cell and afterwards helping in cell recognition and cell-to-cell connection. Sphingolipids are phospholipids or glycolipids that include sphingosine, an unsaturated amino liquor, rather than glycerol.

The phospholipids form a lipid bilayer or film in which the hydrophobic tails all line up to keep water out of the cell while the hydrophilic heads showcase the water. The phospholipid bilayer provides two important functions. It separates the cell material from the surrounding environment.

Because the interior of the phospholipid bilayer is nonpolar, only small uncharged particles such as oxygen, carbon dioxide, and water may pass freely through the film via dispersion or osmosis. The phospholipid bilayer prevents large atoms from passing through. Lipids are excellent energy reservoirs. It is built of long chains of unsaturated fat, such as C-H bonds, which break to release a lot of energy.

To learn more about lipid bilayer, here

https://brainly.com/question/29023313

#SPJ4

Oceans are considered a large carbon sink mainly because they absorb large amounts of carbon dioxide directly from the atmosphere through diffusion. In addition, phytoplankton and other marine organisms also reduce atmospheric CO2 by using it for photosynthesis.

The oceans are considered a large carbon sink because they have the ability to absorb large quantities of carbon dioxide (CO2) directly from the atmosphere. This process occurs through diffusion, which is why option D is correct. The water's surface is constantly in contact with the atmosphere, allowing it to absorb CO2. This ability to take in carbon dioxide helps to moderate global climate change as excess carbon dioxide can lead to global warming.

Moreover, phytoplankton and other marine organisms also contribute to the carbon sink nature of the ocean. These organisms undergo photosynthesis, which requires carbon dioxide, therefore helping to further reduce the amount of CO2 in the atmosphere. This explains why option B also contributes to the idea of oceans as a carbon sink, but it is not the main reason.

The decomposition rates in water (option C) and carbon transfer among the organisms of the food chain (option A) do not significantly contribute to why oceans are considered a large carbon sink.

https://brainly.com/question/34142011

#SPJ1

Pepper is actually a fruit in plant biology.

The flowering plant known as black pepper (Piper nigrum), which belongs to the Piperaceae family, is grown for its peppercorn-shaped fruit, which is often dried and used as a spice and condiment. The fruit is a drupe (stonefruit), and it is dark red, about 5 mm (0.20 in) in diameter when it is fresh and fully grown, and it has a stone within that carries a single pepper seed. Simply called pepper, peppercorns and the ground pepper made from them can also be more specifically referred to as black pepper (cooked and dried unripe fruit), green pepper (dried unripe fruit), or white pepper (ripe fruit seeds). The Malabar pepper is widely grown there and in other tropical areas. Black pepper is a native of India's Malabar Coast.

To know more about Fruit

brainly.com/question/1621791

#SPJ4

Organisms do not possess defenses against oxidative damage, such as catalases and superoxide are Obligate anaerobes.

An organism that needs oxygen to grow is said to be an obligatory aerobe. These organisms use oxygen during cellular respiration to metabolise materials like carbohydrates or fats in order to produce energy. The electron transport chain's terminal electron acceptor in this type of respiration is oxygen. Compared to fermentation or anaerobic respiration, aerobic respiration has the advantage of producing more energy (adenosine triphosphate, or ATP), but obligate aerobes are vulnerable to high levels of oxidative stress.

Oxidative stress is a result of an imbalance between a biological system's capacity to quickly detoxify reactive intermediates or repair the harm they have caused and the systemic manifestation of reactive oxygen species.

Learn more about Obligate anaerobes:

https://brainly.com/question/24203939

#SPJ4

Answer: lots of things

Explanation: Hyperglycemia (high blood glucose) means there is too much sugar in the blood because the body lacks enough insulin. Associated with diabetes, hyperglycemia can cause vomiting, excessive hunger and thirst, rapid heartbeat, vision problems and other symptoms. Untreated hyperglycemia can lead to serious health problems.

B) only in the presence of oxygen. Fermentation is a metabolic process that occurs in the absence of oxygen and allows bacteria to obtain energy by breaking down sugars or other organic compounds. In contrast, aerobic respiration requires oxygen and produces more energy than fermentation, but some bacteria are not able to perform it.

Bacteria that only have the ability to ferment obtain energy by this process and are called anaerobic bacteria. They are adapted to grow in environments where oxygen is not available, such as in soil, water, or in the gut of animals. Fermentation is a metabolic process that allows microorganisms such as yeast and bacteria to produce energy by breaking down sugars or other organic compounds in the absence of oxygen. This process produces alcohol, lactic acid, and other by-products, depending on the type of microorganism and the substrate being used. Fermentation is used in many food and beverage production processes, such as the production of bread, beer, and cheese. It is also used in the production of biofuels, such as ethanol, and in the generation of industrial chemicals.

Learn more about fermentation:

brainly.com/question/13050729

#SPJ4

The class of neurotransmitters called neuropeptides include which neurotransmitter(s) is Enkephalins and substance P

Numerous peptide molecules that function as neurotransmitters in the nervous system are members of the class of neurotransmitters known as neuropeptides. A few instances of neuropeptides are as follows:

Substance P

Oxytocin

Vasopressin

Enkephalins

Dynorphins

Endorphins

Ghrelin

The perception of pain, the control of the autonomic nervous system, and the regulation of mood and behaviour are just a few of the physiological processes in which these neuropeptides are crucial players. To control intricate brain processes, they frequently cooperate with more established neurotransmitters like dopamine, serotonin, and norepinephrine.

Learn more about neurotransmitters here :

brainly.com/question/28101943

#SPJ4

The class of neurotransmitters called neuropeptides include which neurotransmitter(s)?:

A. Dopamine and serotonin

B. Enkephalins and substance P

C. Acetylcholine

D. Norepinephrine

35000 cells/ mL be the bacterial count from the original solution

Given:

That ther are 35 cells but volume is not mentioned so let's assume 35 cells are present in 1 mL.

Total dilution factor = product of all individual dilution factors

Total dilution factor= 10×10×5×2=1000

Bacterial count in the original solution = bacterial count in diluted sample × dilution factor= 35×1000=35000 cells/ mL

Bacteria are prokaryotes with chromosomes made up of a single closed DNA circle and no well-defined nuclei or membrane-bound organelles. They appear in a variety of forms and sizes, including minute spheres, cylinders, and spiral threads, as well as flagellated rods and filamentous chains.

Prokaryotic cells (Bacteria and Archaea) differ fundamentally from eukaryotic cells that comprise other forms of life. Prokaryotic cells are distinguished by a more simpler architecture than eukaryotic ones.

Learn more about bacterial cell

https://brainly.com/question/21141798

#SPJ4

The specific characteristic unique to an individual is b. the sequence of DNA nucleotides in the cells.

The sequence of DNA nucleotides in the cells is unique because ti dictates the different proteins that may synthesize an organism and it is inherited by the parental lines after the process of fecundation or asexual reproduction.

Therefore, with this data, we can see that the sequence of DNA nucleotides in the cells is unique for organisms and it can be inherited as a copy or mixed in the case of fecundation.

Learn more about DNA inheritance here:

https://brainly.com/question/18859449

#SPJ1

DNA damage. DNA repair mechanisms are processes that cells use to fix or repair any damage or errors in the DNA molecule. The DNA damage can be caused by various factors, such as exposure to ionizing radiation, chemical mutagens, and normal cellular metabolic processes. If the DNA damage is not repaired, it can lead to mutations, genomic instability, and cell death. DNA repair mechanisms play a crucial role in maintaining the integrity of the genetic material and preventing diseases such as cancer and aging.

Base Excision Repair (BER): This mechanism repairs damaged bases in the DNA molecule by removing them and replacing them with the correct base, Nucleotide Excision Repair (NER): This mechanism removes large sections of damaged DNA and replaces them with new nucleotides, Double-Strand Break Repair: This mechanism repairs double-stranded breaks in the DNA molecule, which can be caused by exposure to ionizing radiation or other sources of DNA damage. Mismatch Repair: This mechanism corrects errors that occur during DNA replication, where a wrong nucleotide is incorporated into the DNA strand. Overall, DNA repair mechanisms help to maintain the integrity of the genetic material and prevent the harmful effects of DNA damage.

Learn more about DNA:

brainly.com/question/264225

#SPJ4

When a population reaches Hardy-Weinberg equilibrium for a gene, it stops evolving and allele frequencies remain constant across generations. Hardy-Weinberg assumptions include no mutation, random mating, no gene flow, infinite population size, and no selection.

EXPECTATIONS FOR HARDY

EVOLUTIONARY CONDITIONS-

To know more about Hardy Weinberg’s equilibrium click here,

https://brainly.com/question/16823644

#SPJ4

The part whose main job is to sort and package proteins and other substances in plant cells is the golgi body.

The cell is the smallest unit of living organisms that carries out the functions of life. Inside the cell there are various organelles, cytoplasm, and the cell nucleus and the outermost layer of the cell is the cell membrane. In plant cells there is a cell wall composed of pectin for young cells and when mature it is formed from cellulose.

The golgi apparatus is a group of flattened sacs surrounded by a membrane and is present in nearly all eukaryotic cells. These organelles are built by a membrane which is in the form of cisterns, tubules, and vesicles. From the tubules are released small bags that contain materials needed by the enzymes or forming the cell wall. These materials for plant cells can be in the form of protein or other substances such as to form plant cells.

Learn more cell wall at:

https://brainly.com/question/20488420

#SPJ4

A dihybrid cross is a mating experiment between two organisms that are genetically identical in two ways. The genotypic ratio of a dihybrid cross between a tall green plan (TTGG) and a short white plant (ttgg) is 1:2:2:4:1:2:1:2:1.

Any trait has two alleles/genes dominant and recessive. The dominant allele is the one that can be expressed in both homozygous as well as heterozygous conditions of the gene. At the same time, the recessive gene is only expressed when it is present in the homozygous state.

A dihybrid cross is a cross between two people who have two observed traits that are controlled by two different genes. Gregor Mendel developed the concept of a dihybrid cross after observing pea plants that were either yellow or green, round or wrinkled.

The dihybrid cross between a tall green plan (TTGG) and a short white plant (ttgg) iyields the following nine genotypes: TTGG (1), TTGg (2), TtGG (2), TtGg (4), TTgg (1), Ttgg (2), ttGG (1), ttGg (2), and ttgg (1).

To know more about dihybrid cross click here,

https://brainly.com/question/14107890

#SPJ4

A modern understanding of the role of genes in psychology suggests that most psychological traits are influenced by multiple genes, with the exact number varying depending on the trait in question. This is because many traits are polygenic, meaning they are influenced by the combined effects of many genes, each of which may have a small effect.

The exact number of genes that influence a specific psychological trait is not known. Psychological traits are thought to be influenced by a complex interaction of many genes, each with a small effect, as well as environmental factors. The idea that a single gene determines a psychological trait has been largely discredited and replaced with the concept of polygenic inheritance. It is estimated that many psychological traits are influenced by hundreds or thousands of genes.

To learn more about genes, click on https://brainly.com/question/29617836

#SPJ4

The scientist should add the bacteria to the surface spill regions to maximize their effectiveness in consuming the oil.

The most sensible and efficient course of action by scientist is to introduce the bacteria to the region where the spill has happened since they are being used to clean up an oil spill. The bacteria will be able to directly contact with the oil and begin the process of breaking it down into less toxic compounds by being added to the surface spill areas.

The surrounding environment may suffer less from the addition of the bacteria around the fish to protect animal life, but it may not always be the most efficient technique to clean up the oil spill. It is not possible to transport the bacteria to the ocean floor and deposit them there since it would be challenging to manage the bacterium's spread there. Spraying

To know more about scientist, click here,

brainly.com/question/28416408

#SPJ4

The correct pairing of an enzyme and the host tissue it acts upon is A. Hyaluronidase; ground substance of cells. By hydrolyzing hyaluronic acid, a polysaccharide present in the connective tissue's intercellular ground substance as well as in some specialized tissues like the umbilical cord and vitreous humor.

Hyaluronidase is a spreading or diffusing substance that modifies the permeability of connective tissue. Hemolytic streptococci of type A and C have capsules that also contain hyaluronic acid. By cleaving the glucosaminidic connection between the N-acetylglucosamine moiety's C1 and the glucuronic acid moiety's C4, hyaluronidase hydrolyzes hyaluronic acid. This facilitates the absorption of injected fluids or localized transudates or exudates by momentarily reducing the viscosity of the cellular cement and promoting diffusion of these substances.

To know more about hyaluronidase visit

https://brainly.com/question/14032556

#SPJ4

Based on the OD420 values indicating similar concentrations of b-galactosidase in both cultures, you can conclude that the b-galactosidase activity is similar in both E. coli cultures.

The enzyme -galactosidase activity in a culture is determined using the ONPG (o-nitrophenyl-D-galactopyranoside) assay. The test is based on the transformation of the substrate ONPG into o-nitrophenol, a yellow product that absorbs light at 420 nm. The amount of product produced is inversely related to the level of -galactosidase activity in the sample. The concentration of b-galactosidase in the sample can be calculated using the OD420 values obtained from the test.

In this instance, the OD420 values show comparable b-galactosidase concentrations in both E. coli cultures, indicating that this enzyme's activity is comparable in both cultures. However, measuring OD420 does not reveal the rate of development or general wellbeing of the cultures; it simply reveals the activity of b-galactosidase.

To know more about culture, click here,

brainly.com/question/30372064

#SPJ4

C. Golgi stain (light microscopy) The Golgi stain (light microscopy) was the first technique that produced unequivocal support for the neuron doctrine of the nervous system.

The Golgi stain allowed researchers to visualize individual neurons in their entirety, demonstrating that they were distinct, discrete cells rather than a continuous network of cells as suggested by the nervous system theory. The Golgi stain uses a special silver impregnation technique that stains only a small proportion of neurons in a given sample, making it possible to see individual neurons in great detail. This technique provided the first clear evidence for the existence of individual neurons and was crucial in establishing the neuron doctrine as the prevailing theory of the organization of the nervous system. The Golgi stain remains an important tool for studying the anatomy of the nervous system and is still widely used in contemporary neuroscience research.

Learn more about nervous system here:

https://brainly.com/question/16332322

#SPJ4

The most likely reason for developing this type of transportation technology Energy from solar cars is non-exhaustible.

Solar energy is used to generate electricity for solar cars. The solar panels are attached to the vehicle's surface, typically it's top. Solar energy is converted directly into electrical energy by photovoltaic (PV) cells. Material made of semiconductors makes up the PV cell; The term "semi" refers to its ability to conduct electricity more effectively than an insulator, but not as effective as a metal. PV cells make use of a variety of different semiconductor materials. There are many great advantages to using solar energy to power cars:

Know more about PV cell here: https://brainly.com/question/82317

#SPJ4

The percentage of the offspring that will be both orange and green if green in codominance is 100 percent since codominance is a type of allele interaction that produces a new non-mixed phenotype.

The phenomenon of codominance is a genetic allele interaction where both alleles are expressed in the same cell, thereby there is no dominant allele.

Therefore, with this data, we can see that codominance genetic allele interaction leads to the expression of both alleles for a given gene locus and a new phenotype.

Learn more about codominance genetic interaction here:

https://brainly.com/question/8428584

#SPJ1

It is important for conducting arteries to maintain elasticity because their recoil helps maintain blood pressure between heartbeats, their expansion reduces systolic stress on smaller arteries, and their expansion and recoil helps keep the blood flowing during diastole.

Blood flow control in the body is greatly influenced by the vasculature. Blood pressure typically drops from arteries to veins as a result of the pressure overpowering the vessels' resistance. The loss of pressure at any given place in the vasculature is inversely correlated with the magnitude of the change in resistance. Blood pressure (BP), which aids in the movement of blood through the body, is the force that blood applies to the walls of blood vessels. The amount of pressure that blood places on arteries while the heart is pumping is measured by systolic blood pressure. Systolic blood pressure should be 120 mmHg or less. The pressure in the blood arteries between heartbeats is measured by diastolic blood pressure. 80 mmHg is the ideal diastolic blood pressure.

To learn more about systolic from the given link: https://brainly.com/question/15175692

#SPJ4

The complete question is:

Select all that apply. Why is it important for conducting arteries to maintain elasticity?

Their recoil helps maintain blood pressure between heartbeats.

Their expansion reduces systolic stress on smaller arteries.

Their expansion and recoil helps keep the blood flowing during diastole.

Their recoil ensures that blood pressure is higher during diastolic than during systole.

The methods viruses employ to grow inside the host cell are similar in both bacterial and animal viruses. While there are distinctions in the many methods of action each process employs.

The animal virus viral protein breakdown by enzymes Synthesis In the cytoplasm, a bacteriophage. Synthesis by bacteria stopped. Formation of viral mRNA from viral DNA or RNA replication. synthetic components of viruses. Animal virus: RNA or nucleus in the cytoplasm (DNA). Synthesis of host cells stopped. replication of viral DNA or RNA, creation of viral RNA. Attachment - The bacterial virus enters the host with the aid of the tail fibers' attachment to the cell wall protein. Multiplication - Both the animal and bacterial viruses replicate inside a host cell. Animal viruses, on the other hand, get access to the host by capsid attachment to plasma membrane proteins.

Learn more about here:

https://brainly.com/question/30046398

#SPJ4

False. The kidneys are not fully enclosed by the ribs for protection. The kidneys are located in the abdomen, not the thorax, and are partially covered by the ribcage.

The right kidney is located slightly lower than the left kidney, and both are situated just below the diaphragm, the muscle that separates the thorax from the abdomen. The lower part of each kidney is covered by a layer of fat, which helps to protect it, but the ribcage does not fully enclose the kidneys.

Instead, the ribs provide some indirect protection to the kidneys by helping to protect the lower back and spine, which is where the spinal column is located. This helps to prevent injury to the kidneys in case of a fall or other traumatic event.

However, it is not the primary role of the ribcage to protect the kidneys, and the kidneys are not fully enclosed by the ribs. The main function of the ribs is to protect the lungs, heart, and other important organs in the thorax.

Learn more about ribs here: brainly.com/question/1916207

#SPJ4

This is true that the rami communicantes enable sympathetic information coming from the thoracolumbar region to be distributed throughout the body because they connect to all spinal nerves.

Spinal nerves are assorted nerves that communicate straightforwardly accompanying the sleep-inducing or numbing drug cord to harmonize engine and sensual facts from the body's outskirts. Each nerve forms from nerve fibers, famous as fila radicular, reaching from the posterior (back) and anterior (first) ancestries of the spinal cord.

Think of the spinal nerve as the body of a wood - complete ramus resources branch in Latin, so the basic rami are the arms of a sleep-inducer nerve, inasmuch as the roots combine to form the sleep-inducing or numbing drug nerve. These agreements are very smooth to confuse. The basic rami are assorted extreme anxiety winning both engine and auditory fibers.

To know more about spinal cord refer to: https://brainly.com/question/29411596

#SPJ4

Answer:

RNA is a single-stranded polymer of

nucleotides. It also differs from DNA in

that it contains the sugar ribose, rather

than deoxyribose, and the nucleotide

uracil rather than thymine.

Consider the first copy of an allele for insecticide resistance that arises by mutation in a population of insects exposed to an insecticide, the resistance we get after few generation is due to adaptation.

In biology, there are three related definitions of adaptation. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a state that the populace has attained throughout that process. Thirdly, it is a phenotypic trait or adaptive trait that has been preserved and has evolved through natural selection and has a functional role in each individual organism.

Most insecticides have been successfully adapted to by insects, who have developed resistance to them. This adaption, which is recent and has rapidly and independently evolved in many different species, is extremely significant from an economic and medical standpoint. Resistance is thought to be pre-adaptive and to develop through recurring mutation of pre-existing alleles, while its exact origins are yet unknown.

Learn more about Adaptation:

https://brainly.com/question/18296460

#SPJ4

The plasma membrane protects the cell from its outside environment. It mediates cellular transport and transmits cellular signals.

The plasma membrane provides protection for a cell. It protects the cell by acting as a barrier that separates the interior of all cells from the outside environment. The plasma membrane provides a fixed environment inside the cell.

Plasma membranes are selectively permeable, meaning that only certain molecules can pass through them.

The plasma membrane transports nutrients into the cell and also transports toxic substances out of the cell. Hence, regulates the transport of substances in and out of the cell.

The plasma membrane receives chemical messengers from another cell as it facilitates communication and signaling between cells. It does it through various proteins and carbohydrates in the membrane. Hence, it also acts as a receptor.

To learn more about Plasma membrane, click here:

brainly.com/question/734740

#SPJ4

A hormone that is to be secreted, or released, from a cell is most likely to be found in the bloodstream.

Hormones are released into the bloodstream by endocrine glands. Six hormones are produced by cell clusters in the anterior pituitary and released into the bloodstream.

Hormones produced and released by various cell cluster types include: Adrenocorticotrophic hormone is produced by corticotrophs (ACTH), and the thyroid-stimulating hormone (TSH) is produced by Thyrotrophs.

Therefore, blood is responsible for the movement of the hormone throughout the body.

Learn more about hormones, here;

https://brainly.com/question/12872326

#SPJ1