Sodium, potassium, chloride and calcium ions are important for establishing the resting potential of the cell. The sodium-potassium gradient is maintained by a pump which transports 2 potassium inside the cell and 3 sodium ions outside the cell.
Answer:

Explanation:
All the sensory information through sensory neurons must pass through the thalamus.
<u>Thalamus:</u>
- connects cerebral cortex and midbrain.
- collects information from the midbrain and passes it to the cerebral cortex.
- is involved in more functions such as; detects sensations of visual, auditory, and gustatory systems.
- is concerned with memory, emotions.
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Answer: A semi-permeable membrane is that which only allows certain
substances to pass through.
Women have XX chromosomes and Men have XY
BLANK 1: Male
BLANK 2: Female
Answer: D. Extinctions occur at higher rates during times of ecological stress when populations and species are poorly adapted.