Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a a tropical rainforest b temperate rain forest c desert d tundra

Answer:

Cushing's syndrome

Explanation:

Cushing's syndrome or hypercortisolism is a syndrome caused by high levels of the hormone cortisol in the body.

The prolonged exposition to high levels of glucocorticoids such as cortisol has been associated with the occurrence of this syndrome

Answer:

Explanation:

Based on the scenario being described within the question it can be said that the best course of action would be to place a high flow of O2 and rapid transportation if the patient appears to be going into anaphylaxis. Mainly because this is a severe life threatening allergic reaction, that occurs at a moments notice and closes the individuals airway causing breathing to become very difficult.

Answer:

Common symptoms of musculoskeletal disorders include pain, weakness, stiffness, joint noises, and decreased range of motion. Inflammation may cause pain, swelling, warmth, tenderness, impaired function, and sometimes redness of the overlying skin.

Includes Diseases: Rheumatoid arthritis

Explanation:

Answer:

Common symptoms of musculoskeletal disorder includes pain, stiffness, weakness, swelling, and motion range decreases.

Explanation:

Musculoskeletal disorder is combination of Muscles and skeleton.

It is a disorder that affect the body movement.

For e.g. tendon strain (disease) is an example.

Answer:

tsunami

Explanation:

A tsunami is an example of a short-term environmental change.

A short-term environmental change is a change in the environment that occurs over a relatively brief period of time. Out of the examples given, the tsunami would be considered a short-term environmental change. Tsunamis are powerful ocean waves caused by movements in the seafloor. They often result from earthquakes, volcanic eruptions, or large underwater landslides. While tsunamis can have devastating effects, their impact on the environment is relatively short-lived compared to other examples like global warming or ice ages.

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Answer:

Explanation: Scientists believe that Archaebacteria are the survivors of an ancient group of organisms that bridge the evolutionary gap between prokaryotes and eukaryotes. Eukaryotes are the true evolved cells and they differ from prokaryotes

Explanation:

Answer: B) are excited by light that falls in the center of their receptive field.

Explanation:

There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.

If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.

Hence, the correct option is B.

Final answer:

On-center cells are excited by light that falls in the center of their receptive field. These cells are part of the retina's ganglion cells, which are connected to the photoreceptors through the bipolar cells and contribute to visual contrast and sharpness.

Explanation:

A student asked whether on-center cells are excited by light that falls in the periphery of their receptive field, in the center of their receptive field, or across their entire receptive field, or if they are inhibited by light that falls in the center of their receptive field. The answer to this question is: B. are excited by light that falls in the center of their receptive field.

In the visual system, particularly the retina, there are photoreceptors like rods and cones that respond to light. These photoreceptors connect to bipolar cells, which in turn connect to ganglion cells. These ganglion cells have receptive fields with distinctive on-center and off-center characteristics. On-center cells become excited when light stimulus is applied to the center of their receptive field and become inhibited when the light stimulus is applied to the periphery of the receptive field. This process is part of a complex neural circuitry including photoreceptors, horizontal cells, bipolar cells, and amacrine cells, which helps to enhance the visual contrast and sharpness of the image.

Answer:

Mars

Explanation:

Proccess of elimination:

Mars is the only terrestrial planet of the 4 options; the rest are Jovian Planets

Answer: I believe it’s Mars

Explanation:

Answer:

The correct answer is embryo

Explanation:

Answer: Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs.

Explanation:

After the first 12 hours, the body loses about 0.39°C (0.7°F) per hour. than 12 hours. you use the rate of 0.78°C per hour to estimate the time of death. Temperature of dead body is 32.2°C (90°F)

Explanation:

This phase is known as algor mortis, or the death chill. Each hour, the body temperature falls about 1.5 degrees Fahrenheit (0.83 degrees Celsius) until it reaches room temperature. At the same time, without circulation to keep it moving through the body, blood starts to pool and settle.

he decrease in body temperature follows a somewhat linear progression: 3  two degrees Celsius in the first hour; one degree each hour thereafter.

Answer:

one cell with two identical copies of DNA

Explanation:

Meiosis produces genetically unique and haploid daughter cells for sexual reproduction, while mitosis produces genetically identical and diploid daughter cells for growth and development.

Meiosis results in genetically unique and haploid daughter cells, which are involved in sexual reproduction. It involves two rounds of nuclear division, resulting in four daughter nuclei. Mitosis, on the other hand, produces genetically identical and diploid daughter cells that are used for growth, development, and tissue repair. It is a single nuclear division process.

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Final answer:

The results can be explained by incomplete dominance, where neither allele is dominant and the heterozygous individual displays an intermediate phenotype.

Explanation:

The kind of genetic inheritance that can explain the results of crosses between roan cattle is incomplete dominance. In incomplete dominance, neither allele is dominant over the other, and the heterozygous individual displays an intermediate phenotype. When red cattle (RR) are crossed with white cattle (WW), the offspring have a genotype of RW, resulting in the roan phenotype, which is a mix of red and white hairs.

This type of inheritance is similar to what is observed in snapdragons, where a cross between a homozygous parent with white flowers (CWCW) and a homozygous parent with red flowers (CRCR) produces offspring with pink flowers (CRCW). In both cases, the heterozygous genotype produces an intermediate phenotype.

Answer: Cells? If not this, then probably atoms, but most likely cells.

Explanation: Everything in the human body is made of cells. All cells are made of atoms.

The process of water vapor moving out of the leaves is known as transpiration. Transpiration is a vital physiological process in plants, whereby water is absorbed by the roots from the soil and transported upwards through the plant's vascular system (xylem) to the leaves. Once in the leaves, water molecules evaporate from the surfaces of specialized cells called stomata into the surrounding air as water vapor.

Transpiration serves several essential functions in plants. Firstly, it facilitates the uptake of water and minerals from the soil, providing necessary nutrients for growth and metabolism. Additionally, transpiration helps to cool the plant by dissipating heat through the process of evaporation. This cooling effect is particularly crucial for plants growing in hot environments, as it helps prevent overheating and maintains optimal physiological conditions.

Stomata, small pores located primarily on the undersides of leaves, control the rate of transpiration. These pores are surrounded by specialized guard cells that can open and close to regulate the movement of gases, including water vapor, into and out of the leaf. When stomata are open, water vapor diffuses out of the leaf into the surrounding air, driven by differences in water vapor pressure between the leaf interior and the external environment.

Factors such as light intensity, temperature, humidity, and wind speed influence the rate of transpiration. Higher light intensity and temperatures generally increase transpiration rates, as they enhance the evaporation of water from the leaf surfaces. Conversely, high humidity levels reduce transpiration rates, as the concentration gradient for water vapor between the leaf and the air is diminished.

Overall, transpiration plays a crucial role in plant water balance, nutrient uptake, and temperature regulation, making it a fundamental process in the physiology and ecology of plants.

Answer:

Takes the shape of the container

Answer:

A. double-blind

Explanation:

Based on the scenario being described within the question it can be said that the type of trial that she has joined is known as a double-blind study. This is a type of study in which individuals are chosen randomly for each clinical intervention and the results are not given to the researchers until after the trial. This also includes any and all information that may influence the researchers behavior or thoughts on the study.

Answer:

A. double-blind

Explanation:

In Medicine, Double-blind study is a type of trial in which neither the patient nor the doctor running the trial will know until the process has been completed.

It is usually aimed at preventing bias in a scientific research or experiment to the placebo effect.

Answer:

a surrounding membrane or membrane-like structure

Explanation:

A protocell (or protobiont) is a self-organized, endogenously arranged, spherical array of lipids suggested as a step-stone in the direction of life's origin.  

Protocells are thought to have enabled the reproduction of RNA and hence the exchange of genetic information at a time prior to the advent of DNA and proteins (the world RNA hypothesis).

A common characteristic common in all the protocells is the surrounding membrane through which the exchange of genetic information or proteins takes place.

Protocells, the precursors to modern cells, primarily share two key characteristics: maintaining an internal chemical environment and carrying out fundamental metabolism. This was enabled by their lipid bilayer makeup.

A defining characteristic that all protocells shared is their capacity to maintain a separate internal chemical environment and to carry out primitive forms of metabolism. This was made possible because protocells were likely composed of a lipid bilayer, which allowed them to maintain a separate internal environment from the surrounding medium. Furthermore, they are also believed to have the ability to carry out basic metabolic processes.

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Answer:

True.

Explanation:

Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.

Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.

Enkephalins and endorphins act on the  mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.

Hence, Enkephalins and endorphins are peptides that act like morphine.

Answer:

True

Explanation:

Endorphins are hormones of the body that are internally derived. They are opioid neuropeptides produces in humans and some other animals and are able to bind to opiate receptors. These endogenous peptides are similar to opiod drugs e.g morphines, they help to relieve pain and stress. It can also be referred to as the happy hormone.

Also, enkephalins are endogenous hormones produced in the body. They are opioid pentapeptides and are similar to morphines as they are able to bind opiate receptors. They also help in relieving stress.

Answer:

The given statement is true.

Explanation:

Glucose is a simple sugar or monosaccharide.

Answer:

your heart

Explanation:

Answer:

The correct answer is an eukaryote.

Explanation:

The DNA present in eukaryotes comprises chromosomes bundles, these bundles contain molecules of linear DNA, which is wrapped around the protein, that is, alkaline known as histones. These histones help the DNA to turn into a more composite composition.  

The DNA present in a eukaryote may comprise more than two billion base pairs, and because of the linear characteristic, the DNA within a eukaryote comprises sequences of non-coding DNA known as telomeres found on each terminal of the chromosomes.  

Answer: 3.

Explanation:

The concept is based on sexual imprinting which results from selection for recognition of conspecifics.

Sexual imprinting is the mechanism by which a young animal discovers the properties of a desired mate. Male zebra finches, for example, tend to favor mates with the presence of the female bird rearing them, rather than that of the birth parent when they're special.

A female zebra finch select a male that resembels her father with a red feather taped to his head for reprodcution because there are sufficient opportunity of sexual imprinting.

Hence, the correct option is 3.

Answer:

Increase of protons (H+) in the blood causes acidosis. These effects decrease hemoglobin’s affinity for oxygen and weakens its capacity to bind and increasing the haemoglobin dissociation.

Loss of bicarbonate stores by diarrhoea or tubular renal waste results in a state of metabolic acidosis leads increased concentration of plasma chloride and decreased concentration of plasma bicarbonate. Decrease in plasma bicarbonate leads to increase in H+ ions causing acidosis.

Answer:

d.

Explanation:

Based on the scenario being described within the question it can be said that this tissue would most likely come from tissue that separates skin from underlying muscle. Also known as the superficial fascia, this is the main coating beneath the skin that is mainly made up of different amount of fat, which also surrounds the bodies organs.

Answer:

C. Beach nourishment

Explanation:

Beach nourishment the process by which sand lost through erosion or longshore drift is replace by other sources.

Its also known as beach renourishment or replenishment.

Answer:

The animal was most likely an omnivore.

Explanation:

From the dentition, the animal is most likely an omnivore. Carnivores have large and sharp canines for tearing of flesh while most herbivores lack canines altogether.

Answer:

The feeding behavior of this organism is omnivorous.

Explanation:

Omnivorous are those organisms which feed on both plants and animals for the uptake of energy. There are various types of teeth are present in the jaw of omnivorous organisms such as incisors, canines, premolars and molars. Every teeth have a specific function i . e.  incisors helps in cutting of food, the canines helps in tearing and the molars and premolars is responsible for crushing the food materials.

Answer:

Explanation:

Answer:

The preferable option will be - A.

A. The population will eventually become monomorphic for one of the two alleles.

Explanation:

The population will eventually become monomorphic for one of the two alleles because  -