Q: Q: What kind of equal and opposite forces cancel one another out when they act on the same object? A:

OPTIONS:
- solid
- exact
- combined
- balanced

A: balanced

input: OPTIONS:
- shrimp
- spinefishes
- lumpfishes
- lungfishes Now, answer this question: Q: Name the closest living relatives of tetrapods? A:
A:
output: lungfishes

Q: Some sea anemones establish what kind of relationship with hermit crabs by attaching to the crab's shell? A:

OPTIONS:
- pathogenic
- parasitic
- predatory
- mutualistic

Answer: mutualistic

Problem: OPTIONS:
- oxygen
- brain
- System
- immune
Q: Q: Hypersensitivity may refer to a maladaptive response of what system toward a harmless foreign substance? A:
Answer: immune

Problem:OPTIONS:
- symmetrical
- hydroelectric
- horizontal
- longitudinal

Q: The waves on the strings of musical instruments are transverseso are electromagnetic waves, such as visible light. sound waves in air and water are this? A:
****
A: longitudinal

Problem:OPTIONS:
- free by natural selection
- changes by natural selection
- intelligent selection
- evolution by natural selection

Q: Which theory explains how populations of organisms can change over time? A:
****
A:
evolution by natural selection