Question

directions: study the infographic, and answer the questions.
life cycle of the frog

1. eggs (day 1)
2. tailbud (day 2–4)
3. tadpole (day 5–69)
4. tadpole with hind legs (day 70–83)
5. tadpole with forelegs (day 84–89)
6. adult frog (day 90+)
7. how can you tell when a frog is an adult?

a. it has a large tail.
b. it has a small tail.
c. it has no tail.
d. it has legs.

1. how long does it take a frog to develop from an egg to an adult?

a. about one week
b. about three weeks
c. about three months
d. about a year

1. describe the differences between stages 2 and 5 in frog’s life cycle.

Explanation:

Question 1

To determine when a frog is an adult, we analyze the life cycle stages. The adult frog (stage 6) has no tail, while tadpole stages (2 - 5) have tails. Option a is incorrect as adults don't have large tails. Option b is incorrect as adults have no tail, not a small one. Option d is incorrect because earlier tadpole stages (like stage 3) also have legs (hind legs develop later, but the key for adulthood is no tail). So the correct option is c.

The egg stage is day 1, and the adult frog is day 90+. 90 days is approximately 3 months. Option a (one week) is too short, option b (three weeks) is also too short, and option d (about a year) is longer than 90+ days. So the correct option is c.

Stage 2 (Tailbud, day 2 - 4) is an early developmental stage with an embryo - like form inside the egg (or just hatched) with a tailbud, no legs, and is very small. Stage 5 (Tadpole with forelegs, day 84 - 89) is a more developed tadpole with forelegs (in addition to hind legs that developed earlier), a long tail (but will lose it later), and is larger in size, closer to the adult form in body structure (has legs) compared to stage 2.

Answer:

c. It has no tail.

Question 2