X is mathematically an unknown.
As viruses cannot reproduce by themselves, they depend on the host cells that they infect to reproduce
Answer:
The whelk population would likely increase since there would be more mussels and limpets available due to the decrease in crabs.
Explanation:
Answer:
1-f; 2-e; 3-a; 4-b; 5-c; 6-d.
Explanation:
Integumentary System - Regulates body temperature, houses cutaneous receptors and synthesizes vitamin D
Nervous System - Responsible for consciousness and memory
Endocrine System - Secretes hormones
Lymphatic System - Transports and filters lymph fluid
Urinary System - Filters and removes waste products from blood
Respiratory System - Responsible for gas exchange between blood and air
