Harry wrote the following examples of homeostasis: Example 1: An electric blanket provides warmth when it's cold
Example 2: The kidney and other organs remove waste from the human body
Example 3: Some animals migrate to find food
Example 4: Power plants provide electricity for homes

Which of these is a correct example of homeostasis?

Example 1
Example 2
Example 3
Example 4

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Which of the following are responsible for sending messages from the hypothalamus to the thalamus?

There are two tomato plantlets one of them is kept in an oxygen chamber with a light source and another is kept in sunlight. both of them are watered regularly what will be the observation after two weeks