Answer:
Nucleus
Explanation:
every cell has a nucleus kind of like a factory has a ceo, does this make sense to you?
Answer:
A fruit fly of 75h AEL is at larval stage.
Explanation:
The development of a Drosophilia starts from egg to larva to pupa then to adult. The full development at 25 degrees Celsius takes between 8.5 to 10 days. The higher the temperature, the faster the development of the Drosophilia.
The eggs hatch after 12-15 hours into larval stage which then lasts for 3-4 days(72-96 hours) then the pupal stage which also lasts for 3-4 days before it becomes a full adult.
Thus, 72 hours after egg laying would still be in larval stage. The larval stage ends after at leas 90 hours after egg laying.
The answer is that they have traits that enabled them to survive in a changing environment.
During the evolution of the Earth, and later during the evolution of life, the environment was not constant. Change in the environment could lead to an extinction of some species. But, some species were able to adapt or could tolerate a wide range of environmental factors. One of the explanation, why unicellular organisms did not evolve into complex multicellular organisms is because they have traits that help them to tolerate the wide range of factors, and thus, survive in changing environment.
I don't see the image but I'll just put input answers based on what I know.
Characteristics of an Earthworm.
1) From the Phylum Annelida
2) Displays Bilateral Symmetry, NOT RADIAL SYMMETRY
3) Has a true coelom
4) IS SEGMENTED
Answer:
The correct answer is - Observations generate a scientific question, leading to a hypothesis, which can be tested through an experiment.
Explanation:
In any scientific knowledge development process, scientists need to follow the scientific process in a particular sequence that helps in developing and testing a hypothesis.
The sequence has:
observation: Observation requires you to pay attention to occurrences around
Forming question: on the basis of observation form a question about why that occurrence happens.
Hypothesis formation: The hypothesis is your initial prediction on why that happens.
Experiment: The experiment is being done in order to collect data and analysis so you can test your hypothesis
