A new sunscreen has been developed that is supposed to be more effective at preventing sunburn. 30 participants spray one arm with the new formula and spray the other arm with the leading formula. After 4 hours in the sun, their skin is evaluated for any redness.What is the Independent Variable?a. the 30 arms with the old formulab. the 30 arms with the new formulac. Amount of rednessd. Type of sunscreene. the 15 arms with the new formula

Answer:

C. observation, question, hypothesis, prediction, experiment/observation, conclusion

Explanation:

Answer:

3 FACTS ABOUT PHOTOSYNTHESIS:

Hope this helps!

Answer:

The ridges of tissue on the convoluted surface of the cortex are called. gyri.

Genes and the environment both contribute to a person's characteristics. A person's characteristics are not solely determined by genes but the environment also has an impact on who someone becomes. Two examples discussed in class or the textbook that support this point are intelligence and obesity.

The development of intelligence is influenced by both genes and the environment. Studies have shown that the genetic influence on intelligence increases with age. However, the environment is also crucial in developing intelligence. Studies have also shown that children who are raised in a stimulating environment, which includes exposure to language, reading, and other educational materials, have higher intelligence scores than children who are raised in a less stimulating environment.

Obesity is another example of how genes and the environment interact. Some people are more likely to become obese due to their genes. However, the environment also plays a significant role in determining whether someone becomes obese. For example, if someone with a genetic predisposition to obesity lives in an environment with limited access to healthy food and opportunities for physical activity, they are more likely to become obese than someone with the same genetic predisposition who lives in an environment that promotes healthy eating and physical activity.

In conclusion, the interaction of genes and the environment is an essential aspect of understanding human characteristics. DNA is not destiny, and the environment plays a significant role in shaping who someone becomes.

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Answer:

D. Solid Ice Crystals

Explanation:

"Cirrus clouds are wispy, curly, or stringy. They are found high in the atmosphere—typically higher than 6,000 meters (20,000 feet)—and are usually made of ice crystals." -National Geographic

Answer:

1200

Explanation:

Do you the height and age??

Answer:

Your atomic mass is 65 and atomic number 30. With this information, you'll find that this element happens to be Zinc, with 30 protons, 30 electrons and 35 neutrons on a stable level. There is also 4 energy levels. Hopefully this helps. Good Luck!

When a small subgroup migrates from a population, the allele frequency of the overall population may change. The effect of this change depends on several factors, including the size of the subgroup, the genetic makeup of the subgroup, and the characteristics of the overall population.

If the subgroup has a different allele frequency than the overall population, the migration can result in an increase or decrease in the frequency of that allele in the larger population. This can lead to changes in the genetic diversity and variability of the population, which can have significant consequences for the adaptation and evolution of the species. Additionally, if the subgroup is small enough, the migration can result in genetic drift, where chance events play a larger role in determining the frequency of alleles in the population.

Ultimately, the effect of migration on allele frequency depends on a variety of factors and can have complex and unpredictable outcomes.

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In the diagram, the lungs are labeled as X. Hence, oxygen gets mixed and carbon dioxide eliminates from the blood.

A specific type of bodily fluid is blood. Plasma, red blood cells, white blood cells, and platelets are its four main constituents.

All of the body's components can continue to function by receiving oxygen and nutrition through the blood. The lungs, kidneys, and digestive system use the blood to transport carbon dioxide and other waste products for elimination from the body.

Hence, when blood flows through the lungs, oxygen gets added, and carbon dioxide gets eliminated.

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Answer:

the different eras in the geologic time are the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era.

Influenza viruses journey thru the air in droplets when someone with the contamination coughs, sneezes or talks. You can inhale the droplets directly. Or you can pick up the germs from an object — such as a smartphone or laptop keyboard — and then transfer them to your eyes, nostril or mouth.

Flu is a contagious respiratory illness triggered by means of influenza viruses that infect the nose, throat, and once in a while the lungs. It can cause mild to extreme illness, and at times can lead to death.

Influenza A viruses are the only influenza viruses regarded to motive flu pandemics (i.e., world epidemics of flu disease). A pandemic can happen when a new and extraordinary influenza A virus emerges that infects people, has the capacity to spread efficaciously among people, and towards which humans have little or no immunity.02

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Answer:

Probably the which drink tastes better

Explanation:

I hope that helps.

Answer: The answer is C

Explanation: It does not require any sort of scientific thinking or method to solve.

Answer:

Amontons’s law. If the temperature is increased, the average speed and kinetic energy of the gas molecules increase. If the volume is held constant, the increased speed of the gas molecules results in more frequent and more forceful collisions with the walls of the container, therefore increasing the pressure

The mass of the wax after the melting would still be exactly 50 g

A cornerstone of physics and chemistry is the law of conservation of mass, commonly referred to as the principle of mass conservation. It asserts that mass cannot be created or removed in a closed system.

In other words, the total mass of a closed system remains constant over time, regardless of any physical or chemical changes that may occur within the system.

Since the mass of the wax would not change, it would be right to say that by this law, the melted wax would stull weigh 50g

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These are the 9 main life processes of an animal and how hydra accomplish each of them:

Respiration: Hydras respire through their skin. The skin is thin and allows oxygen to diffuse into the body. Carbon dioxide diffuses out of the body in the same way.

Nutrition: Hydras are carnivores and feed on small animals, such as plankton and insects. They capture their prey with their tentacles and inject it with a paralyzing venom. The venom paralyzes the prey and makes it easier for the hydra to digest.

Excretion: Hydras excrete waste products through their skin. The waste products diffuse out of the body in the same way that oxygen diffuses in.

Sensitivity: Hydras are sensitive to touch, light, and chemicals. They use these senses to find food, avoid predators, and reproduce.

Movement: Hydras can move by contracting their body. They can also move by extending their tentacles.

Growth: Hydras grow by cell division. The cells at the tip of the body divide and create new cells. These new cells are added to the body of the hydra, making it grow longer.

Reproduction: Hydras can reproduce sexually or asexually. Sexual reproduction involves the fusion of two gametes, each from a different hydra. Asexual reproduction involves the budding of a new hydra from the body of an existing hydra.

Development: Hydras develop from a fertilized egg. The egg divides into two cells, then four cells, and so on. The cells eventually form a blastula, which is a ball of cells. The blastula then forms a gastrula, which is a cup-shaped organism with two layers of cells. The gastrula eventually develops into a hydra.

Death: Hydras can die from a variety of causes, including starvation, predation, and disease.

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Working with salamander embryos, Hans Spemann concluded that the transplanted tissue formed Neural tissue.

The cleaving salamander egg was divided into two pieces in 1903 by Hans Spemann using a baby-hair loop from his own daughter. The half-embryo would have generated a perfectly proportioned tadpole if it had included some of the future blastopore dorsal lip, where mesoderm involution begins. Spemann came to the conclusion that the dorsal lip region's mesoderm is crucial. It prevents the neural tube from developing if it is removed.

Hans Spemann, a German embryologist, won the 1935 Nobel Prize for medicine or physiology for his discovery of the phenomenon known as Embryonic induction, which refers to the control that various embryonic components exert over the development of cells into specific tissues and organs.

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The following is not a function of lysosomes : forming acid hydrolases which are necessary to help form cell membranes.

Lysosomes serve as the digestive system of the cell, breaking down materials ingested from outside the cell and digesting old components of the cell itself.

Lysosomes are organelles that accommodate hydrolytic enzymes. Hydrolases can break down unwanted components of cells, such as proteins, lipids, and carbohydrates that form cell debris. Cellular components that are not required for other cellular functions move to lysosomes, where they are degraded.

Lysosomes have three main functions: Breakdown/digestion of macromolecules (carbohydrates, lipids, proteins, nucleic acids), repair of cell membranes and response to foreign substances such as bacteria, viruses and other antigens. An important function of lysosomes is the digestion and removal of waste. Cellular debris or foreign bodies are drawn into cells through the process of endocytosis.

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Complete question :

Which of the following is NOT a function of lysosomes?

A) forming acid hydrolases which are necessary to help form cell membranes

B) degrading worn-out or nonfunctional organelles

C) breaking down bone to release calcium ions into the blood

D) digesting particles taken in by endocytosis

Answer

the answer is...

electrical energy is converted to chemical energy

i hope i helped :)

Answer:

D: Electrical energy is transformed to chemical energy.

Explanation:

The episcleral or periscleral space is a narrow area located between the sclera, the tough outer layer of the eye, and the conjunctiva, the thin layer of tissue that covers the sclera and lines the inside of the eyelids.

The periscleral space contains a small amount of fluid called the episcleral or periscleral fluid, which is important for maintaining pressure within the eye.

This pressure, known as intraocular pressure (IOP), is necessary to maintain the shape of the eye and to provide the nutrients and oxygen necessary for the health of the eye's tissues.

The periscleral space is also important for the drainage of aqueous humor, a clear fluid that fills the front of the eye and helps to maintain the IOP.

Aqueous humor is produced in the ciliary body and flows through the pupil into the anterior chamber of the eye, where it is drained out of the eye through the trabecular meshwork and into the periscleral space.

From there, it is absorbed into the bloodstream or the lymphatic system.

Disorders of the periscleral space, such as increased IOP or obstruction of aqueous humor drainage, can lead to conditions such as glaucoma, which can cause damage to the optic nerve and potentially lead to vision loss.

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Answer:

the direction of blood droplets can be determined from the shape of that it formed when they hit the flat surface. the tail of the elongated drop points to the travel Direction.this droplet was traveling from bottom left and upper right the victim may be somewhere in the lower left.

Explanation:

Answer:

Not really sure about this question but what I think is,

So for example, metal..Metal has a very low specific heat capacity, but we use it pretty much in all our lifetime right? Things that have low heat capacity have very high capacity if that makes sense. Things like water and oil, they take more energy to get heat up or get hot. Its funny because its what makes our planet survivable. 70% of our planet is of course water and radiation (light and heat) from the sun strikes 70% of water. Meaning its not heating anything up so quickly. Hope this somewhat helps you out and gives you an idea on what the question is talking about :) Enjoy!

Explanation:

Answer:bsna

Explanation:

The cerebral cortex has bumps and folds called gyri (bumps) and sulci (folds). These structures increase the surface area of the brain, allowing for more neural connections. The lobes of the cerebral cortex are located in distinct regions of the brain: the frontal lobe is at the front, the parietal lobe is near the top and middle, the temporal lobe is on the sides, and the occipital lobe is at the back.

The bumps and folds on the surface of the cerebral cortex are called gyri and sulci, respectively. The lobes of the cerebral cortex are named after the bones that overlay them, and they are located in the outermost layer of the brain. The four lobes are the frontal lobe, located in the front of the brain, the parietal lobe, located on the top and back of the brain, the temporal lobe, located on the bottom and side of the brain, and the occipital lobe, located at the back of the brain. Each lobe has specific functions related to sensory perception, motor control, language, and cognitive processing.

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Proteins are composed of amino acids that differ from one another, unlike carbohydrates, which have the same repeating units.Twenty different types of naturally occurring amino acids are combined in various patterns to create the various proteins.

Amino acids make up the macromolecules known as proteins. Amino acids are frequently referred to as the building blocks of protein for this reason. There are 20 different amino acids, and our bodies need each one in order to create the wide variety of proteins that are found there.

For life to be nourished, renewed, and sustained, proteins are essential. Proteins are the only macronutrients with nitrogen in their fundamental structure in addition to the elements carbon, hydrogen, and oxygen that they share with carbohydrates and lipids.

The elements are organized into a certain shape in each amino acid, with a central carbon bonded to the following four substances:

i)hydrogen

ii)nitrogen-containing amino group

iii) carboxylic acid group (hence the name “amino acid”)

iv)side chain

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The terrestrial invertebrate that is the tube-like organism and belongs to phylum Annelida are called earthworms.

The earthworm has a closed circulatory system and has vessels spread all over its body. The blood circulation and transport of oxygen occur through blood vessels.

The digestive system starts from its mouth towards the end till the anus. The intestine of earthworms has blood vessels that aid in absorption and in transporting nutrients and food in body parts.

The nutrients and food produced in the crop and intestine get absorbed in the vessels of the circulatory system that are present in the digestive organs.

In this way, the digestive and circulatory system interacts with each other.

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Answer:

The hotter the water, the better the solvent

Explanation:

The higher, the better

Answer:

\(NH_{4} ^{+}, NO_{3} ^{-}, CO_{3} ^{2-}\)

Explanation:

A molecule is a chemical species containing at least two chemically-bonded atoms while an ion is a charged chemical species.

Hence, a molecular ion must be a molecule and must carry a charge (positive or negative).

Given the two criteria above, then \(NH_{4} ^{+}, NO_{3} ^{-}, CO_{3} ^{2-}\) are all molecular ions. \(NaCl\), although a molecule, is not a molecular ion because it is not charged.

The following are simple molecular ions NH₄⁺, NO₃⁻, and CO₃²⁻. The correct options are a, c, and d.

Molecular ions are the name given to molecules and elements that are charged either positively or negatively. Many elements participate in chemical reactions and form bonds with each other's atoms. Those elements that have a charge on them are known as molecular ions.

These elements or compounds taking part in bond formation are called ions because when they donate or get electrons, they acquire a charge, positive or negative.

In the following, NH₄⁺, NaCl, NO₃⁻, and CO₃²⁻. All are simple molecules, but NaCl is not considered an ion because it does not contain any charge. So this will not be an ion.

Thus, the options are a. NH₄⁺, c. NO₃⁻, and d. CO₃²⁻.

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i) Amino acids

ii) Phosphorus

Proteins are macromolecules whose building units are amino acids. In other words, proteins are polymers whose monomers are amino acids.

Since the antibiotics work by breaking down the cell wall proteins of the bacteria according to the passage, it means that the proteins will be broken down to their component amino acids.

Thus, the monomers that the researchers should be looking for in the phagocyte should be amino acids.

Amino acids are themselves made from elements such as nitrogen, oxygen, hydrogen, and carbon. Thus, the only element the researchers are not expected to find if they examine the monomers will be phosphorus.

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Answer:

False.

Explanation:

Answer:

Antagonist drugs block a chemical response at a neurotransmitter receptor. Opiate painkillers, including morphine and codeine, are examples of agonist drugs that bind to and activate neurotransmitter receptors, producing feelings of pain relief.

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