A student conducts an experiment to determine how the amount of water given to a plant affects its growth. What is the dependent variable for this experiment? a. the amount of water b. the height of the plant c. the amount of sunlight d. the amount of soil Please select the best answer from the choices provided

Answers

Answer 1
Answer:

Answer: b. the height of the plant.

In an experimental set up an independent variable is the one which can be manipulated or change to observe the effects of such changes or manipulation on dependent variable. For example, plant growth is a dependent variable because it is dependent on independent variables such as amount of sunlight available, amount of fertilizers and water provided.

In this experiment, it is to be determined that how the amount of water given to a plant affects its growth. Here, water is an independent variable which can be change in the experiment and the affect of change can be observed on plant growth which is a dependent variable. A height represents the growth of the plant therefore, height of the plant is the dependent variable.

Answer 2
Answer: I think the answer to this is the height of the plant. The amount of water is the independent variable and the amount of sunlight and soil arent included in this experiment. 

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A characteristic which is influenced by genes and passed from parents to offspring is called heritable. Over many generations heritable adaptive traits become more common in a population. This process is called evolution by natural selection. Evolution by natural selection leads to adaptation within a population. The term evolution by natural selection does not refer to individuals changing, only to changes in the frequency of adaptive characteristics in the population as a whole. For example, for the mice that lived on tan sand, none of the mice had a change in the color of their fur; rather, due to natural selection, tan fur was more common for the pups than for the mother mice. In summary, a heritable characteristic that helps an animal or plant to have more offspring which survive to reproduce and will tend to become more common in a population as a result of evolution by natural selection. a. Explain why a heritable characteristic which helps an animal to live longer will generally tend to become more common in subsequent generations as a result of evolution by natural selection. b. Suppose an unusual heritable characteristic helped animals to live longer but made them sterile so they could not have any offspring. Explain why this heritable characteristic would not become more common in subsequent generations as a result of evolution by natural selection.

Explain the meaning of diffusion?

Answers

The meaning of diffusion is to spread something more widely, like a hole in a balloon.

Which of the following is not true about enzymes?They increase the \Delta G of reactions.
They are usually made of amino acids.
They lower the activation energy of chemical reactions.
Each one is specific to the particular substrate, or substrates, to which it binds.

Answers

Enzymes do not increase delta G of a reaction. Delta G remains the same in an enzymatic reaction. Enzymes fasten reactions by either decreasing the activation energy or by producing binding energy and in both of these cases there is no impact on delta G so it remains the same, that is why statement 1 is incorrect. Statement 2 is correct because most of the enzymes are made up of proteins which is a polymer of amino acids. Statement 3 is also correct because enzymes lower the activation energy as already mentioned. Statement 4 is correct too. Enzymes are very specific to the kind of substrate to which they bind. Enzymes are bond specific, stereo specific & group specific of the substrate to which they bind.

Final answer:

Enzymes are biological catalysts that lower the activation energy of reactions, are made of amino acids, and are specific to their substrates. They do not, however, increase the Gibbs free energy (ΔG) of the reactions they catalyze.

Explanation:

The statement 'they increase the ΔG of reactions' is not true about enzymes. Here 'ΔG' represents the change in Gibbs free energy. In a chemical reaction, enzymes function to lower the activation energy which speeds up the reaction, but they do not increase the ΔG of the reaction.

The other statements about enzymes made of amino acids, lowering the activation energy, and being substrate-specific are true. In essence, enzymes are biological catalysts that speed up reactions but do not change the overall energy change (ΔG).

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From the video “Clownfish and Sea Anemone Partnership” what relationship is being displayed and what are the indicators or factors that are evidence for your answer?Comensulism

Parasitic

Competition

Mutualism

Answers

Answer:   Comensulism

Commensalism is being displayed From the video Clownfish and Sea Anemone Partnership

Explanation:

From the video Clownfish and sea Anemone Partnership there is a significant relation that can be seen from the statement itself too and that is sign of symbolism.

The relation of symbol is used for the sea anemone. So, both Clown fish and Anemone are held to be very beneficial whenever these two fishes are kept together in presence of each other.

So, it can be said clown fish and sea anemone have a very deep relation between each other.

50 points and brainliest'!!!!!!!!!!!!!!!!!!!!!!!!Reliability and probability in forensic tests are important. When you look at matching a paint chip to a specific car, you are working to increase the probability that the right car matching your paint chip evidence will be found. Reliability means you have practiced and applied the correct procedures and processes for all your evidence testing, and you know you can trust the results. Some forensic tests are more reliable than others, and the best type of test or tests to use will usually depend on the kind of evidence that is present. If all types of evidence were present at a crime scene, which type of test would you choose based on its reliability and probability of accuracy? Identify which test you would choose and provide a detailed argument as to why you feel it has a high level of reliability in comparison to other types of evidence. Your answer should be at least two paragraphs in length and should include solid arguments for your choice. There is no wrong choice, just be sure to provide a convincing argument.

Answers

Answer:

Explanation:

everything must match up inorder to find anyone accountiable

Final answer:

For forensic science, the Gas Chromatography-Mass Spectrometry (GC-MS) is highly reliable and accurate for identifying specific materials. In a case involving a paint chip, it accurately identifies the various elements and compounds in the paint and discriminates between different paint brands and types.

Explanation:

In the entire arsenal of forensic tests, one test stands out for its high reliability and accuracy in identifying specific materials: the Gas Chromatography-Mass Spectrometry (GC-MS). It has two main components: Gas Chromatograph, which separates the different components in a substance, and Mass Spectrometer, which identifies each of these components.

The GC-MS test is particularly effective when analyzing biological materials like blood, saliva, and even paint fragments. When dealing with a case involving a paint chip, for instance, GC-MS can not only identify the various elements and compounds in the paint but can discriminate between different paint brands and types, thereby increasing the probability of accurately matching the paint chip to a specific car.

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Bill is trying to plan a meal to meet specific nutritional goals. He wants to prepare a meal containing rice, tofu, and peanuts that will provide 350 grams of carbohydrates, 311 grams of fat, and 168 grams of protein. He knows that each cup of rice provides 42 grams of carbohydrates, 0 grams of fat, and 1 grams of protein. Each cup of tofu provides 4 grams of carbohydrates, 11 grams of fat, and 23 grams of protein. Finally, each cup of peanuts provides 34 grams of carbohydrates, 75 grams of fat, and 35 grams of protein. How many cups of rice, tofu, and peanuts should he eat?

Answers

Final answer:

Bill needs to solve a system of linear equations based on the nutritional content of each food item in order to find out how many cups of rice, tofu, and peanuts he should consume to meet his specific nutritional goals. Keep in mind the caloric density of foods and the importance of a balanced diet.

Explanation:

To determine the number of cups he should eat, we would first need to set up a system of linear equations based on the nutritional content of each food item.

Let's denote R as the number of cups of rice, T as the number of cups of tofu, and P as the number of cups of peanuts. From the information given, we can create these equations:

42R + 4T + 34P = 350 (for carbohydrates)

0R + 11T + 75P = 311 (for fats)

1R + 23T + 35P = 168 (for proteins)

He needs to solve this system of equations to get the values of R, T, and P. Keep in mind, nutritional goals are important but it's also vital to consume foods high in micronutrients, fiber and have a balanced diet. Remember that fatty foods are calorie-dense compared to carbohydrates and proteins, meaning they have more calories per unit mass. This can be a healthy and sustainable meal plan for Bill if he also incorporates sufficient fruits, vegetables, and exercises regularly.

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Which of the following creatures does not gain energy from marine snow either directly or indirectly?a. rays
b. crustaceans
c. zooplankton
d. sponges

Answers

The creatures that do not gain energy from marine snow either directly or indirectly are known as Zooplanktons. Thus, the correct option for this question is C.

What are zooplanktons?

Zooplankton may be defined as an organism that is small floating or weakly swimming in nature anddrifting with water currents and, with phytoplankton, making up the planktonic food supply upon which almost all oceanic organisms are ultimately dependent.

The creatures of zooplankton are ultimately deriving their energy by consuming phytoplankton. So, among the options given, they are the creatures that do not gain energy from marine snow either directly or indirectly. While rays, crustaceans, sponges, etc. gain energy from marine snow either directly or indirectly.

Therefore, the creatures that do not gain energy from marine snow either directly or indirectly are known as Zooplanktons. Thus, the correct option for this question is C.

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The answer is D. Zooplankton