The answer that best fits the blank is "RELIABLE, BUT NOT A VALID". Sir Francis Galton is a known anthropologist and eugenicist, and for him, skull size in relation to intelligence might be reliable, but this do not have any evidence to be considered valid.
Answer:
Natural selection is defined as what?
Natural selection entails the ability of an organism to adapt to an environment and such adaptive traits are passed from parents to offspring
Explanation:
The law of natural selection was propounded by Charles Darwin which entails the survival of an organism by adapting to an environment and such adaptive trait is passed to offspring
Answer:
Cerebellum
Explanation:
The cerebellum is a region of the brain whose main function is to integrate the sensory and motor pathways. There is a large number of nerve bundles that connect the cerebellum with other brain structures and with the spinal cord. The cerebellum integrates all the information received to specify and control the orders that the cerebral cortex sends to the musculoskeletal system through the motor pathways. It is the regulator of physiological tremor.
Are you looking for the word "species" maybe?