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Which of the following is the best definition of life span?

What is the common name for the insect shown below: (Fill-in-the-blank)

Anemia can result from a deficiency of

What is the scientific family name for the taxon shown below? (Fill-in-the-blank)

What is the common name for members of the family Psychodidae? (Fill-in-the-blank)  

Eastern gray squirrels are one of the few mammals that can descend a tree head-first.

What animal is recognized as the most prodigious and ecologically essential natural forest regenerator? (Fill-in-the-blank)

What does the the family name Gryllotalpidae translate as:

What makes a sand pear so gritty?

What is the family name for the sphinx moths?