PLEASE HELP Henry is digging in a shale formation in Kentucky and finds a brachiopod. He continues digging deeper and finds a trilobite. Which of the following statements correctly relate the brachiopod and the trilobite?
a- The brachiopod is smaller than the trilobite
b- The trilobite is smaller than the brachiopod.
c- The brachiopod is older than the trilobite,
d-The trilobite is older than the brachiopod.

What are the types of mutations, and how does each alter the encoded protein? college level answer

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

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?