Metabolic Rates and Biological Hierarchy

List the hierarchy of life (cell to organism)

Answer explanation

Cell,tissue,organ,organ system,organism

What is the overall function of the digestive system?

Answer explanation

To break down food into smaller, absorbable nutrients that can be used by the body for energy, growth, and cell repair

Basal Metabolic Rate (BMR) is measured in

Standard Metabolic Rate (SMR) is measured in…

What is the basal metabolic rate?

Answer explanation

The amount of calories expended each day just to stay alive

Between males and females, _____ have a higher BMR (Basal metabolic rate)

Why do males have a higher BMR (basal metabolic rate) than females?

What is the difference of the BMR (basal metabolic rate) of a human male to the SMR (standard metabolic rate) of an alligator?

How does the process of diffusion limit the size of the cell?

Answer explanation

Diffusion is only efficient over short distances, so as a cell gets bigger, it takes too long for nutrients and waste to move in and out. This is why cells stay small or change shape to maintain a high surface area-to-volume ratio for efficient transport.

List at least three factors that can limit the size and shape of an animal

Answer explanation

Some reasons: Drag through the water for aquatic animals, gravity for terrestrial animals, if they have an exoskeleton or endoskeleton, if the organism was unicellular or multicellular, energy requirements related to environment or activity level, the effectiveness of diffusion