Two students are comparing scientific experiments to investigations. They came up with the following ideas.
Student A: Testing plant growth in different types of soils
Student B: Comparing the water level in a lake during different times of the year
One student gave an example of an Avestigation and the other gave an example of an experiment. Which student gave an example of a
scientific investigation? (5 points)

A. Student A because it requires a hypothesis
B. Student B because it requires a hypothesis
C. Student A because it can be done in natural settings
D. Student B because it can be done in natural settings

Answer:

Explanation:

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows.

Answer:B

Explanation: Because if u Look at Protein Carbohydrates Nucleic acid and fatty acid actually they are polymers made up of small units called monomers.Option C is incorrect because these are organic molecules containing carbon so we cannot say that it will form an inorganic structures and the other option says about genetic information so genetic information is only determined by Nucleic acids not fatty acid, Protein or Carbohydrates and last option D is incorrect because nuclei acid didn't provide energy.

The statement which describes starches, fats, proteins and nucleic acids is they are complex molecules made from smaller molecules. So, the correct option is (B).

Nucleic acids are naturally occurring chemical compounds that break down to form a mixture of phosphoric acid, sugars, and organic bases (purines and pyrimidines). Nucleic acids are essential data-transmitting molecules of the cell, and, as they also direct the course of protein synthesis, they control the inherited characteristics of living things.

The two essential categories of Nucleic acids are Deoxyribonucleic acid (DNA) and Ribonucleic acid (RNA). DNA is the master prototype for life and contains genetic material in all free-living organisms and various viruses.

RNA is the genetic material of some viruses. It is also found in all living cells which plays an important role in certain processes like making proteins.

Thus, the statement which describes starches, fats, proteins and nucleic acids is they are complex molecules made from smaller molecules. So, the correct option is (B).

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Answer:

I think its great that farmland is being converted to wetlands, wetlands reduce the amount of co2 in the air and prevent floods. Some factors scientist need to consider is how wetlands can affect civillians as wetlands can lure dangerous animals such as alligators. Converting farmland to wetland would be successful due to the fact that wetlands can provide shelter to animals and can reduce co2 in the air, I recommend researching the topic further and to take my word with a grain of salt.

Explanation:

The bottom explanation might be a little worse due to the fact that I want it to be somewhat different from the top one, both explanations work fine in my opinion but the top one is better.

Another great explanation is: I believe wetlands are amazing for the enviroment as they prevent floods and give shelter to animals, wetlands can't really affect civillians negatively other then dangerous animals. I would most likely moniter its success by seeing how much water the wetland can hold, if it can hold an average amount then I would say the restoration was successful.

1. Consumers and producers both need nutrients to carry our life functions. On the other hand, producers are organisms that make their own food. Consumers are organisms that need to eat other organisms to obtain energy.

2. Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers. Mold plays a big part in material biodegradation, enabling decay and rot necessary in all ecosystems.

3. The form of energy entering the food chain is sunlight, which is being taken by plants to produce glucose as their food energy. When it leaves the food chain, the energy is then heat.

4. The percentage of the energy stored by the grass that is passed onto the hawk is 1%

5. B because you can get more production from the cow's milk and meat.

Answer:

1.)     Producers are organisms that are usually autotrophs and make their own food in the ecosystem by the process of Photosynthesis, using sunlight, to provide energy to themselves and later to consumers in the environment. Consumers on the other hand are organisms in an ecosystem that don't make their own food and get the energy from consuming producers, primary consumers or secondary consumers. There are 3 different types of consumers, herbivores, carnivores and omnivores.

2.)    The roles of decomposers in an ecosystem is very crucial, they feed on dead and decaying bodies. Therefore these decomposers are in-charge or removing dead matter from ecosystem as well as giving energy back to the ecosystem, as where it started from.

3.)    Energy enters a food chain in the form of sunlight, and leaves the food chain in the form of heat.

4.) grass = 100%; rabbit = 100% x 0.10 = 10%; hawk = 10% x 0.10 = 1%

5.) Option B, since receiving meat and milk and other dairy products would be more nutritious to the farmer's family than to eat corn most of the time

Hope this helps!

Answer:

Because if you take a drug normally without any side affects, you might get VERY sick.  ( DON''T TAKE DRUGS UNLESS YOUR DOCTOR GIVES YOU SOME)

Explanation:

Answer:

animal

Explanation:

Answer:

The population frogs in the brown hill will have more changes because they cannot camouflage to free in the brown hill,they will have to develop some traits or features that will help them adapt and live comfortably in the brown hill.

Population refers to a group of living organisms of a particular species that can interbreed, living and interacting together at the same time in the same area.

Therefore, The population of frogs in the brown hill will have more changes because they cannot camouflage to free in the brown hill, they will have to develop some traits or features that will help them adapt and live comfortably in the brown hill.

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The wo differences between the hand bones of human and cat limbs are- Number of digits: Human hands have five digits (four fingers and a thumb), while cat paws have four digits. This difference in digit number is due to evolutionary adaptations that have occurred in the two species over time.

Limbs are the appendages of the body that are used for movement and manipulation. In humans and most animals, limbs typically consist of bones, muscles, tendons, ligaments, and other connective tissues that work together to produce a wide range of movements and actions.

Shape and size of bones: The bones in human hands are relatively long and slender, with distinct shapes and sizes for each digit. In contrast, the bones in cat paws are shorter and thicker, and the digits are more uniform in shape and size.

This difference in bone structure reflects the different functions of human hands and cat paws, as human hands are adapted for manual dexterity and fine motor control, while cat paws are adapted for hunting and climbing.

It's important to note that there are many other differences between human and cat limbs, including the structure and function of muscles, tendons, and ligaments, as well as the range of motion and flexibility of the joints.

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Answer:

The sunflower is intolerant to shade exposure and needs full sun exposure. It has adapted to this necessity by having a heliotropic head which rotates to follow the sun, hence the name sunflower. The heads of the sunflower are heliotropic, meaning movement of the head in response to the direction of the sun.

Explanation:

Answer:

23- Vacuole

24-Centrosome

25-Nucleus

26-Cytoplasm

27-Chloroplast

28-Cell wall

29-Cell membrane