The increase in the number of surveys related to dogs in the period may have occurred due to the increase in the number of cases of non-elderly dog deaths.
First, an initial research was done to identify if there were any pathological or external agents, such as the weather, that explained the dogs' death. Once the causative agent is discovered, further research is commissioned to understand the mechanisms of action of the causative agent of death and ways to prevent such events from happening.
Answer:
Claim 2: Earthworms can respond to light.
Explanation:
Yes, earthworms do not have eyes. However, sensory organs of animals isn't restricted to the eyes alone. Other sensory organs include, ears for hearing, nose for smelling and so on. In terms of response to light, the eyes as a sense organ comes into play. However, the skin is also a sense organ which has the ability to feel the effect of a phenomenon such as as heat or respond to touch. Because light produces heat, earthworms can respond to light through their skin. With their skin they can measure the intensity of light falling in them and adjust depending on their current body temperature.
Therefore, earthworms can respond to light with their skin.
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