The answer is D. in animal cells, the cell membrane allows materials in and out of the cell, while the mitochondria uses nutrients to make energy (ATP) for the cell.
Rarefaction in terms of ecology can be defined as a technique used to assess species richness from the results of sampling.
It allows the calculation of richness of a particular species for a given number of individual samples, and these are based on the construction of rarefaction curves.
Hence, the correct answer is: option A-Creating a representative sample
Answer:
The answer is scientific method.
Explanation:
The Scientific Method:
The Scientific Method is the standard process of experimentation and inquiry used to test hypothesis and answer scientific questions.
Every scientific question requires a specific form of the scientific method, with the variations ranging from the scope of the hypothesis to the experimental design and data analysis methods.
The steps of the scientific method are as follows:
1. Observation/Question
2. Hypothesis
3. Experimentation
4. Data analysis
5. Conclusion
The conclusion includes analysing the results and developing further hypotheses and testing them. If the hypothesis remains irrefutable, it becomes a theory. If the theory remains irrefutable after rigorous experimentation in various studies by multiple scientists, the theory becomes a law.
Answer:
Predator prey
Explanation:
Animals that feed on other animals are called predators and the animals they eat are called prey. All predators have specific interactions with their prey as they are locked in an evolutionary "arms race". The prey will try to develop novel traits to survive as the predators will try to adapt to these. This is not a conscious process, but rather an evolutionary one, where prey individuals that have a survival advantage will survive and thus reproduce more.
The second image illustrates a predator-prey cycle where an increase in the prey numbers will lead to an increase in the predator numbers. This in turn will lead to a decrease in the prey number which in turn will also lead to a decrease in the predator's numbers.
The third image is a trophic or ecological pyramid in which X are the primary producers (ex. plants), Y are the animals that feed on these (prey) and Z are the predators that feed on Y. In general, top predators are not hunted and eaten by other species which is why they are at the top of the pyramid.
