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The Harlow (1958) study concluded that contact comfort is more important for attachment than feeding.  What evidence was used to support this conclusion?

According to Lawrence Kohlberg, moral development proceeds from

After the age of 80, the majority of elderly adults are

By measuring the ratio of light and heavy oxygen isotopes (16O:18O) in deep sea cores, scientists can do which of the following? 

Occipital lobe is to _______ as temporal lobe is to _______.

Big brains evolved before bipedalism.

How many chromosomes are found in a genetically normal human?

Sarah is about to deliver a baby. Her husband is driving her to the hospital at 80 miles per hour. Their children are also in the car. Billy says, “Daddy, it’s against the law to go this fast.” Mandi says, “It’s all right, Billy.  Daddy has to get Mommy to the hospital quickly. This car is like an ambulance.” At which moral level will a law be broken, but only for a greater good?

Only about .1% of the animals that have ever lived are preserved in the fossil record.

According to they phylogenetic tree in the image below, which statement about evolutionary relationships is correct?