what are the two most abundant elements found in the earth's crust that combine form to minerals

The axial skeleton forms the central axis of the body, consisting of 80 bones that include the skull, spine, and thoracic cage, and is crucial for protection and supporting the head, neck, and back. The appendicular skeleton consists of 126 bones in the limbs and girdles, providing the necessary structure for movement and attaching limbs to the axial skeleton.

Difference Between Axial and Appendicular Skeleton

The human skeleton is primarily divided into two key parts: the axial skeleton and the appendicular skeleton. The axial skeleton is the central core of the human body and is comprised of 80 bones. It includes the skull, vertebral column (spine), and the thoracic cage (ribs and sternum).

The axial skeleton serves to protect the brain, spinal cord, and the organs in the chest. It also provides attachment points for muscles that move the head, neck, and back, and those involved in respiration.

The appendicular skeleton, on the other hand, consists of 126 bones and includes all bones of the upper and lower limbs, as well as the pectoral (shoulder) and pelvic girdles. This division of the skeleton is essential for movement, as it encompasses the bones that are responsible for locomotion and manipulation of the environment. The appendicular skeleton connects to the axial skeleton through the girdles.

The pectoral girdle anchors the upper limbs to the thoracic cage, while the pelvic girdle secures the lower limbs to the vertebral column. These girdles function as attachment points for the limbs and facilitate a wide range of motion.

The axial skeleton forms the central axis of the body, including the skull, vertebral column, and thoracic cage, and the appendicular skeleton includes the limbs and girdles that attach limbs to the axial skeleton.

The axial skeleton and the appendicular skeleton are two major divisions of the human skeletal system with distinctive functions and structures.

The axial skeleton forms the central axis of the body and primarily includes the skull, vertebral column, and thoracic cage. It supports the head, neck, back, and chest, thus forming the vertical axis of the body. The adult axial skeleton comprises 80 bones that are crucial for protecting the central nervous system and the organs in the chest.

The appendicular skeleton, on the other hand, consists of 126 bones. These include all the bones of the upper and lower limbs, in addition to the pectoral and pelvic girdles which attach the limbs to the axial skeleton. The bones in the pectoral girdle anchor the upper limbs to the thoracic cage, while the pelvic girdle attaches the lower limbs to the vertebral column.

Overall, these divisions allow the body to perform a wide range of movements and provide the necessary support and protection for various bodily functions.

During chemical reactions, the chemical bonds between the atoms in the reactants are transformed. Bonds are broken in the reactants and new ones are created in the products, leading to the transformation of substances.

During chemical reactions, the chemical bonds between atoms in the reactants undergo changes.

This occurs because chemical reactions involve processes that break down the bonds in the reactants and form new ones in the products.

This is important for the transformation of substances. For instance, water forms due to a chemical reaction where two hydrogen atoms bond with an oxygen atom.

Hence, chemical bonds play a critical role in the process of chemical reactions, facilitating the transformation of one chemical substance into another.

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Yes. It is known that Zika can be spread sexually. So, even infected people who do not have symptoms can pass it on to others.

Answer:

Yes, they should be very concern about Zika infection

Explanation: Because, It is known that Zika can be spread sexually. So, even infected people who do not have symptoms can pass it on to others.

rocks can become soil in multiple different ways one could be primary succession which means some algae or moss grows onto rocks with out soil then they slowly gain moisture which attracts some other plants like flowers which then breaks down the rock into smaller things then grasses come in and turns it into soil.

It is the chemical properties of a substance, which determines that how the substance will react when combined with other substance.  

The usual properties of a substance like density, color, and hardness are some of the illustrations of physical properties. The properties, which illustrates that how a substance modifies into a completely distinct substance are known as chemical properties.  

Some of the examples of chemical properties are oxidation, toxicity, the heat of combustion, and flammability, enthalpy of formation, radioactivity, and chemical stability under particular conditions.  

Answer:

It is the synthetic properties of a substance, which verifies that how the substance will respond when joined with other substance.  

Explanation:

The standard properties of a substance like thickness, shading, and hardness are a portion of the delineations of physical properties. The properties, which outlines that how a substance changes into a totally particular substance are known as compound properties.  A portion of the models of substance properties are oxidation, poisonous quality, the warmth of burning, and combustibility, enthrall of development, radioactivity, and compound strength under specific conditions.

Carbohydrates

Lipids

Nucleic Acids

Proteins

Carbohydrates, lipids, proteins and nucleic acids are the four classes of the organic molecules. The correct options are B, D, E, and G.

The organic molecules are the one having a carbon atom bonded with other molecules.

The four classes of the organic molecules include carbohydrates, lipids, proteins and nucleic acids.

Thus, the correct options are B, D, E, and G.

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Answer: B. Males of different, closely related species of fireflies signal for mates by flashing different light sequences.

Reproductive isolation refers to the inability of the members of a species to breed with members of other species. Behavioral isolation is a type of reproductive isolation, in which mating between the members of the species is facilitated by their behavior. It helps members of the same species to identity their mates. It prevents mating between population of distinct species.

Males of different, closely related species of fireflies signal for mates by flashing different light sequences is an example of behavioral isolation because flashing of light by fireflies is the behavioral characteristic which shows their desire for mating. The mates identify the light signals flashed by their partner belonging to the same species.

Answer:

b for test

Explanation:

i got it right

Living things are made of types of molecules, known as macromolecules.

There are four major classes of biological macromolecules:

carbohydrates

lipids

proteins

nucleic acids

Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules. In combination, these biological macromolecules make up the majority of a cell’s dry mass. (Water molecules make up the majority of a cell’s total mass.) All the molecules both inside and outside of cells are situated in a water-based (i.e., aqueous) environment, and all the reactions of biological systems are occurring in that same environment.

Answer: The use of ammonia as a refrigerant is a problem because it is toxic.

Explanation:

The use of ammonia as a refrigerant is a problem because it is toxic.

Ammonia may cause severe burns and migrates to moist areas of the body like skin, eyes, nose, throat etc due to its hygroscopic nature.

Ammonia has a much broader explosive range as it is toxic in nature.

so, use of ammonia in refrigerator is a problem.

Hence, Third option is correct.

Answer:

The answer is

D)Both erosion and lack of rock deposition

Explanation:

Answer:

Embedded proteins act as signalling molecules and as transport proteins.

Explanation:

Integral and transmembrane proteins are embedded proteins acting to transmit signals from outside the cell to the inside.

Others act as transport proteins that form channels that allow movement of molecules between the inside and outside the cell.  

Ribosomes - Make protein

Golgi Apparatus - Make, process, and package proteins

Nucleus - Stores the DNA and coordinates the cell's activities

Mitochondria - Make energy out of food

Vacuole - Storage for food and water

Lysosome - Contains digestive enzymes that help break down food

Plant cells (only) -

Cell wall - Protection and support

Chloroplast - Uses sunlight to create food using photosynthesis

I hope this helps :)

The answer is it's property.

Matter is defined as anything that has mass and occupies space. Particles, from smallest to largest and Amal is the greatest Subatomic particle.

butterflies and house flies.

Hope this helps!

Answer:

butterflies and house flies.

I belive the answer is C. 1s2 2s2 2p6 3s2 3p6 4s2

Electron configuration are used to tell the distribution of electrons of an atom or molecule. The electron configuration order should follow a specific path. You will found some similarity of the rule with the number of row in the periodic table. After the electrons fill 3P, the electron should fill 4S before it go to 3D.

Answer: Option (c) is the correct answer.

Explanation:

Calcium is a group 2 element and it lies in period 4 and group 2.

Atomic number of calcium is 20 and its electronic distribution is 2, 8, 8, 2. That is, in ground state there are 20 electrons present in a calcium atom.

It's electronic configuration is as follows.

                [tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}[/tex]

Thus, we can conclude that calcium's ground-state electron configuration is [tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}[/tex].

Photosynthesis occurs in the chloroplast of plant cells. Thylakoid is a membrane-bound compartment in the chloroplast, which is the site of the light-dependent reaction of photosynthesis.

Answer:

The light dependent reaction of photosynthesis takes place in the thylakoid membrane of the the organelles called chloroplast.

The light dependent reaction uses light energy( sunlight) to make molecules required for the process of photosynthesis. Out of two one is ATP molecule and the other one is NADPH.

These two molecules along with carbon dioxide and water starts the process of photosynthesis.

It's mitochondria :)

Answer:

c. mitochondria

Explanation:

viruses have no membrane bound organelles and this includes mitochondria

Answer: During transcription, adenine (A) is complementary to uracil (U) in RNA.

Answer:

C. Composite volcano

Explanation:

I pass the test :)

The kind of volcano which is most likely to form from this plate movement is a composite volcano. Thus, the correct option is C.

A Volcano may be defined as an opening of the earth's crust through which molten rock, hot gases, and other materials erupt drastically.

Convergent plate boundaries lead to the occurrence of a composite volcano. The movement of such plate boundaries creates the thick magma required for molten rock or magma for these eruptions.

Therefore, the correct option is C.

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13.8 billion years ago

I say 13.9 billion years ago

fluid part refers to the phospholipids of a cell membrane

mosaic part refers to proteins embedded in the phospholipid bilayer

The right option is; B. clearing and farming  

Tropical rainforests are forests located in tropical regions of heavy rainfall and are found in places such as Hawaii, Brazil, Africa and Indonesia. The heavy rainfall and the yearly high temperatures of tropical rainforests are good conditions for vegetation growth and it contains several species of wildlife and vegetation such as kapok tree, lianas, shrubs and ferns. Clearing and farming is a major problem caused by humans on the tropical rainforest that may make the forest not to return to its original climax community.  

A specialized protein complex that uses light energy to drive the transfer of electrons from water to plastoquinone, resulting in the production of oxygen and the release of reduced plastoquinone into the photosynthetic membrane.

Photosystem II (PSII) is a specialized protein complex that uses light energy to drive the transfer of electrons from water to plastoquinone, resulting in the production of oxygen and the release of reduced plastoquinone into the photosynthetic membrane.

Hi Oppisite

Question:According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?

Answer:B.Cells organized into tissues

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Hello...

According to evolutionary scientists, animals that arose later in evolutionary history share which characteristic?

Answer - B. Cells organized into tissues

A physical change occurred when a metal changed colonial because it reacted with another substance.  There are two types of change, out of which one is physical change. This change can be defined as a change in the form of any chemical substance and chemical composition is not affecting in this change.

For Question 1, Ideas that are Science based, are often testable, verifiable, can be falsified, and based on evidence.

Ideas that are non-science based are not testable, not verifiable, said to be infallible and are based on belief.

For Question 2,  The gravitational force increases as the size of an object increases. On the other hand, the strength of gravity is inversely related to the square of the distance between two objects.

For Question 3, The equation from density is mass over volume.

Changes volume it will change by a inverted proportion. Increases it will decrease the density, decreasing it wil increase the density.

Changes mass it will change directly. Increasing mass it will increase density and vice versa.

For Question 4, Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density.

For Question 5, I'd say it's for proof of their theory.

Hope this helped.

mutation-nomenclature

probably for sure

Thanks for this question. Please find the answer below:  

The sources of compost for a person living in Canada versus a person living in Arizona are as below:  

Canada:  

Arizona:  

For a person living in Canada, potential sources of compost include leaves, grass clippings, fruit and vegetable scraps, coffee grounds, eggshells, and garden waste. For someone in Arizona, composting materials might be similar, but there could be a greater use of dry leaves, straw, pine needles, and even manure from local ranches or farms due to the drier climate.

Composting is a biological process in which microorganisms, including bacteria and fungi, break down organic matter into simpler compounds. The environmental conditions in Canada and Arizona are different, which affects the types of organic materials that are readily available for composting. Canada's wetter and cooler climate may provide a more diverse range of green and brown materials for compost, such as grass clippings and fallen leaves. In contrast, Arizona's arid climate might limit the availability of green waste, making it important to balance the compost with appropriate brown materials like straw or sawdust to maintain proper moisture levels. Both regions can also utilize kitchen waste, but it is crucial to keep the compost well-aerated and balanced between green (nitrogen-rich) and brown (carbon-rich) materials for effective decomposition.

It is B the saturated triglyceride

Answer:

The correct answer would be B) a saturated triglyceride  

Triglycerides refer to the ester formed by three fatty acid chains and glycerol.

They are the main contributors for the body fats in animals, humans, and vegetable fat.

They can be of two types; saturated and unsaturated.

Saturated triglycerides are those in which there is no double or triple bonds are present in the fatty acid chains that are, they are saturated with hydrogen.

Unsaturated triglycerides are those in which double or triple bond is present in fatty acid chains.