I think the first option is the answer.
Answer:
How our body responds to light and how our body responds to danger.
Explanation:
External stimuli are changes that happen outside the body that our body's scenes can detect.
Answer:
Sunlight, Carbon dioxide, chlorophyll, and water are needed for photosynthesis to be carried out.
Explanation:
These 4 elements are essential to photosynthesis since they each allow the plant to grow and sustain homeostasis.
Gametes that are the same in size and shape. Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm. The female gonad in animals.