Which characteristic is not useful in the classification of igneous rocks?

Answers

Answer 1
Two main characteristics are used to classify igneous rocks: 1) texture (the size of the mineral grains in the rock; and 2) composition (often determined by what the actual minerals are).
Answer 2

Answer:

1,2,3

Explanation:

origin

texture

composition


Related Questions

which doesn't change the shape of a cell: (isotonic solution, hypotonic solution, or hypertonic solution)

Answers

isotonic solution. it means that the same is on the outside as it is inside

Isotonic solution doesn't change the shape of a cell. So, the correct option is A.

What is Solution?

A solution is defined as a special type of homogeneous mixture made up of two or more substances. In such a mixture, a solute is a substance dissolved in another substance which is also called as a solvent.

An isotonic solution is a type of solution that has the same osmolarity, or solute concentration, as another solution. If these two solutions are separated by a semipermeable membrane, water will flow from each solution in equal parts to the other solution. This solution doesn't change the shape of a cell.

Thus, Isotonic solution doesn't change the shape of a cell. So, the correct option is A.

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To maintain homeostasis what must follow the chemical decomposition of food for energy production?
A. removal of wastes
B. nervous impulses
C. muscle contractions
D. intake of water

Answers

A. removal of wastes
The answer is A. removal of wastes,

Photosynthesis uses which ingredients to produce cellular fuel

Answers

Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy. This energy is used to fuel growth and all of the normal cellular functions. Carbon dioxide and water are formed as by-products of respiration.
The two main ones is water and sunlight. Hope this helped.

What three types of information does laboratory analysis of blood, urine, or other body fluids or substances provide about a patient?

Answers

The three types of information that the laboratory analyses of blood, urine, and other body fluid or substance that they provide about the patient are the following;

-          Confirmatory of initial diagnosis

-          The dosage of medication

-          Monitoring in identification of illness or disease present

Final answer:

Laboratory analysis of blood, urine, or other body fluids can provide information about the composition, quantities, and characteristics of the fluids.

Explanation:

Laboratory analysis of blood, urine, or other body fluids can provide three types of information about a patient:

Composition of substances: Tests can determine which molecules or substances are present in the fluid or sample.Quantities of substances: Tests can measure the levels or concentrations of specific substances in the fluid or sample.Characteristics of the fluid: Tests can provide information about the physical and chemical properties of the fluid, such as pH, osmolarity, volume, and the presence of abnormal chemicals or cells.

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It represents the type of cell structures found in cam plants

Answers

Need more information to answer this question. 

However, an example of a cam plant is a cactus. They have CO2 -carbon dioxide- to produce acids. It stores the CO2 at night so it can be used during the day because cam plants are in extreme hot conditions. They release it during the day and it's formed in the Calvin cycle during photosynthesis to make glucose. 

15 POINTS!!!!!!!!


1. Carbon has _________ valence electrons allowing it to _________________ easily with other molecules.

2. ______________ is the ability of water to bond to itself.

3. ______________ is the ability of water to bond to other molecules.

Answers

1. four, bond
2. Cohesion
3. Adhesion is correct ... looked in my bio book sorry
1) Carbon has 4 valence electrons allowing it to covalently bond easily with with other molecules.
2) Cohesion is the ability of water to bond with other water molecules.
3) Adhesion is the ability of water to bond to other molecules.

** Both Cohesion and Adhesion are due to hydrogen bonding present because water is a polar molecule.

What term is used to describe the healthiest lake?

Answers

term  used to describe the healthiest lake  is oligotrophic

Answer: Eutrophic lakes

Explanation:

Eutrophic lakes are the lakes which are in high nutrient content. The high nutrient content supports the large diversity of aquatic plants, algae and aquatic animals. The substrate of the lake is soft and muddy. This provides the suitable environment for the survival of the organisms. The organisms are generally tolerant to the low oxygen and warm temperatures.

On the basis of the above description, eutrophic lakes can be a term used to describe the healthiest lake.

Briefly describe what happens during the light dependent reactions of photosynthesis

Answers

The light dependent reactions produce Oxygen Gas and convert ADP and NADP+ Into the energy carries ATP and NADPH.

Light energy is converted into chemical energy by light-dependent reactions. The goal of photosynthesis's light-dependent reactions is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then put to use in light-independent reactions.

What is photosynthesis ?

Photosynthesis is a process that plants and other organisms used to convert light energy into chemical energy that can then be released to fuel the organism's activities via cellular respiration.

The light-dependent reaction is a photochemical reaction that occurs in chloroplast thylakoid membranes and converts light energy into adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate(NADPH).

The photosynthesis process is divided into two stages: light-dependent reactions and the Calvin cycle. Chlorophyll absorbs energy from sunlight and converts it into chemical energy via the light-dependent reactions that occur at the thylakoid membrane.

Thus,  The goal of photosynthesis's light-dependent reactions is to collect energy from the sun and break down water molecules to produce ATP and NADPH.

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If a woman complains of back labor pain, what is the best suggestion by the nurse

Answers

She may suggest that the woman lean over a birth ball having her knees on the floor. (the hands-and-knees position, whether or not - using the ball should help with the back pain.)
Final answer:

A nurse can suggest changing positions, use of warm compresses, or relaxation techniques to a woman experiencing back labor pain. However, the doctor should be informed and further investigations might be needed to rule out serious ailments. The patient's health history should also be reconsidered.

Explanation:

In the case of a woman complaining about back labor pain, a nurse's suggestions can involve a few strategies. They could advise the woman to change her body position to one that feels more comfortable and lessens the pain such as kneeling or standing rather than lying flat. Warm compresses or taking a warm bath might also help. The nurse could also suggest some relaxation techniques like deep breathing or visualizing calming images. However, these are only possible immediate measures to ease the pain.

The nurse must also inform the patient's doctor about the severity and frequency of the pain. The doctor may then decide to conduct further investigations to rule out conditions such as appendicitis, urinary tract infection (UTI), or pelvic inflammatory disease (PID), especially if they are accompanied by other symptoms. A more thorough examination of the patient's medical history, including treatments like the one Marisa received for her compressed spinal cord, could be beneficial in determining the cause of the back labor pain.

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The human body burns about _______________ calories for each liter of oxygen consumed.

Answers

The human body burns about 5 calories for each liter of oxygen consumed. 

Describe how water's high specific heat is important to life on earth

Answers

the waters specific heat is able to absorb a lot of heat without a significant rise in the temperature. hope this helps and please rate below and please thank me on my profile page and i will do the same :)

The three main types of pollutants found in agricultural runoff are

Answers

The three main types of pollutants found in agricultural runoff are:
animal wastes, biocides, fertilizers

Hope this helps!

You are given an unknown cell to identify as a plant, animal, or bacteria cell. in a paragraph describe how you be able to use a compound microscope to identify what type of cell it is

Answers

  The cells all have different qualities. 
A plant cell will have a cell wall (the others don't have these) and so it will be kept in a rigid shape, unlike the others which are free to be blobby. Inside a plant cell, there is also a vacuole containing cell sap. The others don't have this. Plant cells also have chloroplasts, which look similar to mitochondria on a diagram. Chloroplasts contain chlorophyll, and this is used for photosynthesis. 

A plant cell will have a cell wall and so it will be kept in a rigid shape, unlike the others which are free to be bloating. Inside a plant cell, there is also a vacuole containing cell sap. Plant cells also have chloroplasts, which look similar to mitochondria on a diagram. Chloroplasts contain chlorophyll, and this is used for photosynthesis.

What is photosynthesis?

The process by which green plants prepare there own food in the presence of sunlight is known as photosynthesis and during the process of photosynthesis heat energy converted into chemical energy and the whole process is done in order to plant prepare food.

The food web is also known as consumer consuming system. The main advantage of food web is the organism present on top or the organisms who belongs to higher trophic level can provide food or feed the organisms from lower trophic level or from other food chain.

Therefore,A plant cell will have a cell wall and so it will be kept in a rigid shape, unlike the others which are free to be bloating. Inside a plant cell, there is also a vacuole containing cell sap.

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Why would a compound that interferes with bacterial cell wall synthesis be useful for treating a bacterial infection?

Answers

If a compound could interfere with bacterial cell wall synthesis, it would destroy the cell. The bacteria would not survive failure of the cell wall. This compound would be useful in the treatment of bacterial infection as it would destroy the infection on a cellular level.

This protective covering on the axon is formed by a type of neurglia called schwann cells.

Answers

Schwann cells produce the protective covering around certain nerve cells called myelin. 

It's most commonly found covering motor neurons in vertebrate animals. Myelin-covered neurons have a faster conduction velocity.

Traditionally, it is taught that the neuron is the functional unit of the nervous system. what do some neuroscientists suggest is a more accurate functional unit? why?

Answers

Neural networks, because even the most basic functions require circuits of neurons rather than just a single neuron.

Sometimes, in response to irritants, mucous cells secrete excess mucus. What symptoms might this produce if it occurred in the (a) digestive tract or (b) respiratory passageway? What is the purpose of the mucus production in this situation. Give an example to help support your answer.

Answers

The secretion of excess mucous in the digestive tract may result in loose stools or diarrhea. The purpose of the excess secretions is to lubricate the digestive tract so that food can pass through during digestion with greater ease. The secretion of excess mucous in the respiratory passageway could result in increased coughing as the body attempts to expel the mucous (and the offending irritants) from the lungs and bronchial tubes. This occurs when either physical debris (such as inhaled dust or dirt particles) or pathogens (such as bacteria and viruses) have entered the respiratory passageway and the body attempts to remove them; an example is the common cold.
Final answer:

Excess mucus production in the digestive tract can cause nausea and abdominal discomfort, while in the respiratory passageway it may lead to coughing and a runny nose. Mucus serves to protect the body, trapping pathogens and foreign particles. A typical example of this protective mechanism in action is the increased mucus seen during a common cold.

Explanation:

When mucous cells secrete excess mucus in response to irritants, it can lead to different symptoms depending on the location within the body. If this occurs in the (a) digestive tract, symptoms might include nausea, vomiting, abdominal pain, and diarrhea as the body attempts to expel the irritant. If it occurs in the (b) respiratory passageway, symptoms can include coughing, sneezing, a runny nose, and difficulty breathing due to the obstruction the excess mucus creates.

The purpose of mucus production in this situation is to protect the body by trapping pathogens and other foreign particles. For instance, in the respiratory tract, the mucociliary escalator sweeps mucus and trapped pathogens upward towards the throat to be swallowed or expectorated. Similarly, in the gastrointestinal tract, mucus serves as a lubricant and also contains antimicrobial agents that help protect the lining from irritation and infection.

An example that supports the protective role of mucus production is the common cold. During a cold, the body produces more mucus in the respiratory tract to trap and remove the cold virus. This results in the typical symptoms of a stuffed-up nose and the need to clear one's throat frequently.

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What molecule(s) does diffusion move?

Answers

I believe water molecules move by diffusion.

In the process of swallowing, food cannot normally enter the trachea because the

Answers

because the Epiglottis covers the Larynx

What was the first step of aerobic cellular respiration to evolve? What evidence is there to support this ?

Answers

The first step of aerobic cellular respiration to evolve is glycolysis, the evidence that there is to support this is with through the cytosol of the cytoplasm in which this stage takes place as this is the process where glucose has been split in two molecules by the enzymes.

After eating, _________ signals the hypothalamus to suppress appetite.

Answers

After eating, leptin signals the hypothalamus to suppress appetite. 

The membrane that lines the lumenal surfaces of the digestive, respiratory, urinary, and reproductive tracts consists of

Answers

The membrane that lines the lumenal surfaces of the digestive, respiratory, urinary, and reproductive tracts consists of epithelium and lamina propria.

What is cell membrane?

Cell membrane is defined as a wall that differentiate and protect the inner structure of cell from the outer environment. The main function of cell membrane is to keep away the toxic material out of the cell.

The cell membrane contain channels as well as receptors that give permission to only selective permeable membrane to enter into the cell.

Respiratory system is defined as the system that performs the function of gaseous exchange.During this process fresh air is inhaled and waste material in form of carbon dioxide is released out.

The main components of respiratory system are lungs, blood vessels, trachea and nassal passage. By combining all these components respiratory system of the body performs it's function properly.

Therefore, The membrane that lines the lumenal surfaces of the digestive, respiratory, urinary, and reproductive tracts consists of epithelium and lamina propria.

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Final answer:

The mucous membranes line the lumenal surfaces of several body tracts, with mucus secreted by exocrine glands providing protective and antimicrobial functions.

Explanation:

The membrane that lines the lumenal surfaces of the digestive, respiratory, urinary, and reproductive tracts consists of mucous membranes. These membranes are an assembly of connective and epithelial tissues known as mucosae. They are essential for protecting the internal layers of these tracts and serve as a barrier against the external environment. The mucous membranes are coated with mucus, which is secreted by exocrine glands within the epithelial tissue. This mucus is not only a lubricant but also serves to trap debris, particulate matter, and microbes, providing an additional antimicrobial barrier. The underlying connective tissue layer, called the lamina propria, provides support for the epithelial layer, allowing it to maintain its integrity against physical and biological stresses.

During which stage of mitosis are the chromosomes aligned on the equator (middle line) of the cell?

Answers

The chromosomes are lined up in the center of the cell during metaphase.

Over evolutionary time, photosynthesis has, in effect, introduced challenges to itself by producing an oxygen atmosphere because

Answers

In the process of photosynthesis, carbon dioxide is taken from the atmosphere and oxygen is realased. But now with the evolution, the atmosphere has much more oxygen than carbon dioxide. So the first step of absorbing carbon dioxide itself has been challenged by the process of photosynthesis.

Brekkies is releasing a new type of breakfast cereal that combines different grains and flavors. since brekkies is releasing a new product in the industry, brekkies will

Answers

they will make money cause its so GOOD

The likely result in the given scenario above is that the Brekkies will likely find or locate information in regards about the breakfast cereal demands from the consumers with the use of databases online in a way that will help them know if their product will be a hit and if it will sell.

In what way are mitochondria and chloroplasts similar to some prokaryotes cells

Answers

Even though both organelles are found in eukaryotic cells, both mitochondria and chloroplast have characteristics often found in prokaryotic cells. These prokaryotic cell characteristics include: an enclosed double membrane, circular DNA, and bacteria-like ribosomes.
Final answer:

Mitochondria and chloroplasts resemble prokaryotes in several important ways, hinting at a possible endosymbiotic origin. This includes their independent division process similar to bacterial binary fission, the presence of their own DNA and ribosomes, and structural similarities in size and shape to bacteria.

Explanation:

Mitochondria and chloroplasts show several similarities to prokaryotes, which include size and the presence of their own DNA and ribosomes. Both mitochondria and chloroplasts divide independently by a process similar to binary fission in prokaryotes. This supports the theory known as the endosymbiotic theory, proposing that these organelles were once free-living prokaryotes.

Mitochondria, often referred to as the powerhouses of the cell, share traits with alpha-proteobacteria. They carry their own genomes that bear resemblances to bacterial DNA, hold special ribosomes and transfer RNAs mirroring those found in prokaryotes, and show minor differences in the universal genetic code.

On the other hand, chloroplasts, which play a key role in photosynthesis in plant cells, are thought to have originated from an endosymbiotic relationship with photosynthetic cyanobacteria. Like mitochondria, they also contain circular genomes and show structural similarities to bacteria in terms of size and shape.

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Briefly describe what is meant by a pioneer species.

Answers

A pioneer species is the first species to arrive at an environment after primary or secondary succession occurs. 

why is nitrogen so important to plants

Answers

Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.
is because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (photosynthesis). It is also a major component of amino acids(protein), is the building blocks of proteins.

Name the different levels of body organization

Answers

Atom, Molecule, Organelle, Cell, Tissue, Organ, Organ System, Organism, Population, Community, Ecosystem, Biome, Biosphere

The primary __________ cortex contains a map of the body based not on the size of body parts, but on the complexity and precision of movement in the body parts.

Answers

Hello!
The correct answer should be the motor cortex!
Hope this helps! :)

Answer:

Motor

Explanation:

The primary motor cortex is located in the dorsal part of the frontal lobe.This region is mainly responsible for the planning and execution of the body movements along with other associated areas such as supplementary motor areas, posterior parietal cortex, etc.It is considered as the prime region for controlling the complexity and precision of the movement of the various body parts.
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