Biologists find _____ useful because this scientific study gives them much information about an organism based on its classification.
What simple chemical test is useful in the identification of the mineral calcite or any of the minerals found in the carbonate group?
Final answer:
The identification of calcite and other carbonate minerals is typically done by applying a drop of dilute hydrochloric acid (HCl) to a specimen and observing whether it effervesces. Dolomite, another carbonate mineral, react more slowly and may require scratching the specimen to produce a powder. Vinegar and barium chloride solution can also be used for carbonate mineral tests.
Explanation:
A simple chemical test commonly used to identify the mineral calcite and other minerals in the carbonate group involves using dilute hydrochloric acid (HCl). When a drop of this acid is placed on a sample of calcite, it will typically effervesce or fizz. This reaction occurs because calcite, which has the chemical formula of CaCO3, reacts with the acid to produce carbon dioxide gas. If the sample does not fizz, it may be dolomite, another mineral in the carbonate group. In the case of dolomite, scratching the specimen to create a powder and then applying the dilute acid will often result in a slower, more gradual fizz, indicating the presence of this mineral.
Another option for testing is to use vinegar, which contains acetic acid. While the reaction will be less vigorous due to the weaker nature of acetic acid, it can still be used to test for the presence of carbonate minerals. This test is versatile and, in addition to field use by geologists, it is also used in mineral identification labs.
Additionally, magnetite can be identified by its magnetic properties, and distinguishing between sulfates and carbonates can be done by adding barium chloride solution to a test salt, where the formation of a white precipitate can indicate the presence of these groups.
Is a group of species that includes an ancestral species and all of its descendants?
How does the density of ice compare to that of liquid water and why is that property important to aquatic organisms
Answer:
B
Explanation: The density of ice is lower than that of liquid water, which means that ice forms from the top of lakes downward, protecting aquatic life in winter.
A nurse is caring for an older adult who was admitted to the hospital to be treated for dehydration. while the nurse is providing discharge teaching, the client says, "what should i do about my dry skin? it is so itchy." what is the best response by the nurse?
What protects most bacteria from swelling up and bursting in hypotonic solutions?
What is the difference between a producer and a consumer in a marine food chain?
A.) Producers break down dead organisms, whereas consumers eat other organisms.
B.) Producers eat other organisms, whereas consumers make their own energy. C.) Producers eat other organisms, whereas consumers break down dead organisms.
D.) Producers make their own organic molecules, whereas consumers have to eat other organisms.
Answer: D.) Producers make their own organic molecules, whereas consumers have to eat other organisms.
Explanation:
A food chain is a sequence of transfer of food and energy when one type of organism is eaten by another type of organism. A marine ecosystem typically comprises of aquatic plants and animals.
Among the options given, D.) Producers make their own organic molecules, whereas consumers have to eat other organisms. is the correct option this is because of the fact that producers are able to conduct the process of photosynthesis in order to produce their food in the form of organic molecules such as glucose to obtain energy. But consumers are incapable of producing their food hence, they are dependent on other organisms for obtaining their food like plants or other animals.
Producers (or autotrophs) in a marine food chain create their own energy, often through photosynthesis, while consumers (heterotrophs) rely on consuming other organisms for their energy and nutrients. Producers can include organisms like phytoplankton, while consumers can range from fish and seals to whales.
Explanation:In a marine food chain, the terms producer and consumer indicate the role organisms play in the energy flow of the ecosystem. Producers, also known as autotrophs, are organisms that can make their own energy or organic molecules, mainly through the process of photosynthesis. An example of a producer in a marine ecosystem is phytoplankton.
On the other hand, consumers, also known as heterotrophs, cannot make their own food. They rely on other organisms for their energy and nutrients. Consumers eat other organisms to gain energy. These may include herbivores, carnivores, and omnivores. Fish, whales, and seals are examples of consumers in marine ecosystems.
So, to answer the question, option D is correct. Producers make their own organic molecules, whereas consumers intake energy by eating other organisms.
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What is the difference between scientific knowledge and knowledge acquired "unconsciously"?
Why is a hypothesis called an educated guess?
The point of contact between a motor nerve and an individual muscle cell is called the ________.
Which of the following statements is true? a)During active transport, a material may be moved from an area of low concentration to an area of high concentration. b) During passive transport, energy is used to move material against a concentration gradient. c)During active transport, water is pumped across a membrane to equalize the concentration of salts on both sides. d)During passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.
Which of the following pairs share similar chemical properties?
Select one:
a. oxygen (O) and Chlorine (Cl)
b. Helium (He) and Hydrogen (H)
c. Fluorine (F) and Neon (Ne)
d. Bromine (Br) and Iodine (I)
Carbohydrates are an important type of
When is a model useful in scientific investigations?
discuss whether or not the steps of the scientific method must be carried out in a specific order and whether or not every scientific endeavor must include all seven steps
The unequal distribution of charges across the cell membrane results in the ______________.
How the process of natural selection canexplainhow evolution occurs?
Which best describes the modern classification system
Which unit of measurement is used in the metric system?
Tons
Kilograms
Miles
Gallons
Answer:
Killograms i believe anyway
Explanation:
Is it proper to put away cups and knives after you towel dry them?
Alison wants to construct the perpendicular bisector of mn¯¯¯¯¯¯¯. what should alison do for her first step?
Determine the relative ages of rocks based on a geologic cross section.
Hypersecretion of glucocorticoids, often caused by a tumor, results in ________.
The development of sensory and motor symptoms in multiple sclerosis is caused by
What is the name given to the branch of science that pertains to the composition of matter and the changes that matter undergoes?
a. biology
b. chemistry
c. physics
d. physical science?
A scientist agrees with the scientific consensus that dinosaurs have scaly skin. Then he discovers a new fossil that indicates a dinosaur had feathers. The scientist refuses to consider the new evidence because it does not agree with the accepted ideas. The scientist is
Someone who has broken an arm and has had a cast on it for months will notice a distinct shrinking of the arm once the cast is removed. why does this happen?
Which life process is classified as autotrophic in some organisms and heterotrophic in other organisms?
Answer:
Nutrition
Explanation:
(Marine science honors)
Explain why ocean acidification seems to be speeding up, give specific examples.
An olfactory stimulus travels from a receptor to the ________.
The olfactory stimulus travels from a receptor to the olfactory bulb, which is located at the tip of the frontal lobe. From there, the information is sent to regions of the limbic system and the primary olfactory cortex.
Explanation:The olfactory stimulus travels from a receptor to the olfactory bulb. The olfactory receptor neurons, located within the olfactory epithelium in the nasal cavity, send signals to the olfactory bulb which is a bulb-like structure at the tip of the frontal lobe where the olfactory nerves begin. From the olfactory bulb, information is sent to regions of the limbic system and the primary olfactory cortex.
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