One Hypothesis Explaining Animals' Abilities to Detect a Magnetic Field

question 44

Multiple Choice

One hypothesis explaining animals' abilities to detect a magnetic field and use it to navigate is that sensory cells detect electrical fluctuations influenced by Earth's magnetic field. Which evidence, if it were true, would support this hypothesis?

• A) Sensory cells of an organism known to use magnetic fields to navigate show an increase in action potential firing when in the presence of electrical fluctuations.
• B) Sensory cells of an organism known to use magnetic fields to navigate show a decrease in action potential firing when in the presence of electrical fluctuations.
• C) Sensory cells of an organism known to use magnetic fields to navigate show a greater density of negative ions on the outside of its plasma membrane.
• D) Sensory cells of an organism known to use magnetic fields to navigate produce greater amounts of enzymes sensitive to electrical fluctuations.

Understand the new accounting standards for leases (AASB 16/IFRS 16) and their requirements.

Calculate lease receivable amounts at the inception of a lease.

Determine the present value of lease payments under finance lease agreements.

Identify the scope and exclusions of AASB 16/IFRS 16 regarding lease agreements.

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Definitions:

Peripheral Membrane Proteins

Proteins that are attached either temporarily or permanently to the outer or inner surface of the cellular membrane, often involved in signaling or structural roles.

Integral Proteins

Proteins that are permanently attached to or span the membrane of cells, playing crucial roles in transport and signaling.

Plasma Membrane

The lipid bilayer membrane that encases a cell, providing structural support, protection, and the ability to communicate with the external environment.

Turgor Pressure

(turgor) Hydrostatic pressure that develops within a walled cell and presses outward against the plasma membrane.