Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
I do believe the answer is B
Answer:
Its D, The cell membrane(also known a the plasma membrane) has a job in which it has to allow passage in and out of the cell. Therefore it can prevent harmful substances from entering the cell. Think of it as security, either allowing you access or denying you depending on if you're a threat
Answer:
The carrying capacity is a measure of how many individuals can a given ecosystem provide for. An individual and its population is dependent on various components of its ecosystem for necessities such as food, habitat, etc. An ecosystem can only successfully support a given population.
Explanation:
Nucleus, mitochondria, vacuole, cytoplasm,
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