First blank: The mobility of their hosts same goes for the second one :)
ANSWER:
The effects can be beneficial, harmful, or neutral.
Explanation:
Answer:
C. internal fertilization
Explanation:
The release of eggs and sperm into the water is known as spawning.
Neurons function to process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord, and peripheral nerves.