Both plants and animals have organs and tissues.

Arachnoid mater

A) Functional unit of the nervous system
B) Most superficial and thickest meninx
C) The middle meninx
D) The meninx bound tightly to brain and spinal cord
E) Separates dura mater from periosteum

All cardiac veins empty into the ________, which then empties into the ________.

A) coronary sinus; left atrium
B) coronary sinus; right atrium
C) great cardiac vein; right atrium
D) great cardiac vein; superior vena cava
E) inferior vena cava; left atrium

Nutrition includes the study of

A) the nutrients in foods.
B) the body's utilization of nutrients.
C) how nutrients play a role in your body's health.
D) digestion, absorption, and transportation of nutrients.
E) All of these choices are correct.

The secretion of which hormone decreases when calcium blood levels increase?

A) Calcitonin
B) Parathyroid hormone
C) Thyroid hormone
D) Epinephrine
E) Norepinephrine

A _______________________________ clause defines the workers' obligations to pay dues and union membership rules .

Species richness is a measure of both the number of species and the relative importance of each species based on its abundance, productivity, or size.

Which is a type of neuroglial cell?

A) astrocyte
B) lacunae
C) dendrocytes
D) osteocytes
E) myelin

Which of the following is the correct order of vertebrae from the neck downwards?

A) thoracic → lumbar → sacrum → cervical → coccyx
B) cervical → lumbar → sacrum → thoracic → coccyx
C) cervical → thoracic → lumbar → sacrum → coccyx
D) lumbar → sacrum → cervical → thoracic → coccyx
E) sacrum → cervical → thoracic → lumbar → coccyx