I think it's a word within a word...
Answer:
Some of the questions are unclear.
4. ... money in my pocket because I am afraid <u>of losing it. </u>
5. ... finish on time <u>in spite of</u> our best efforts.
6. Help <u>yourself </u>to some cookies!
7. Helen's never late so she<u> must </u>be held up in traffic.
8. Randy succeeded<u> in qualifying</u> for the 100 m sprint.
9. Northern Europe's economies are heavily<u> dependent on</u> natural resources.
10.<u> At first I</u> didn't look forward to exercising at the gym, but now I really enjoy it.
11. If you'd been more attentive, you <u>would have heard</u> what the teacher was saying.
12. As soon as Sarah<u> comes </u>in, ask her to help you.
Answer:
Both explain why the Sumatran tiger is an endangered species.
One of the benefits of asexual reproduction is that only individual parents are demanded. When the living thing is prepared to generate offspring, it could do so accordingly without procrastinating for a sufficient comrade.