The trait for a straight thumb (H) is dominant over the trait for a hitchhiker's thumb (h). Two people with heterozygous/hybrid genotypes for straight thumbs got married. What is the probability that these two people will have a child with a hitchhiker's thumb? *

25%

Explanation:

Punnett square:

      H       h

H | HH  |  Hh

h |  Hh  |   hh

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)