"dr. goddard is studying the behavioral effects of mdma (ecstasy) using a rat model. he would measure increased release of which hormones in response to mdma treatment? "

The correct answer is serotonin and oxytocin.

MDMA (amphetamine) enhances the release of  serotonin,  and/or blocks its reuptake. As a result neurotransmitter levels within the synaptic cleft are increased. Because serotonin regulates the mood, sleep, pain, its elevated levels causes the mood-elevating effects people experience.

Elevated levels of oxytocin ("the love hormone" ) increase trust, promote social bonding, and foster compassion.

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)

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics