Final answer:
The mass of the Monarch butterflies in standard notation is 5,000,000 grams, which corresponds to answer choice A (5000000 g).
Step-by-step explanation:
The mass of one roosting colony of Monarch butterflies in Mexico was estimated at 5 x 106 grams. In standard notation, this mass is 5,000,000 grams, which corresponds to answer choice A) 5000000 g.
Monarch butterflies exhibit a fascinating behavior where they migrate up to 3,000 miles from their summer habitats in North America to their winter habitats in Mexico. This migration occurs in large groups, and it's a cycle that repeats annually with Monarch butterflies returning north in the spring.