Author Question: A circadian rhythm: a. Is about a day long b. Varies from 1248 hours across individuals c. ... (Read 75 times)

ETearle

  • Hero Member
  • *****
  • Posts: 580
A circadian rhythm:
 
  a. Is about a day long
  b. Varies from 1248 hours across individuals
  c. Alters alertness but has little effect on hormonal levels
  d. Is shorter than an ultradian rhythm

Question 2

One of the two genes that have likely contributed to our greater brain size relative to chimpanzees is the ___ gene, responsible for ___.
 
  a. ASPM gene; myelination of the temporal lobe
  b. PACAP precursor gene; neurogenesis and neural signaling
  c. AMSP gene; synaptic formation
  d. PACAP precursor gene; locomotor performance



Shshxj

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

A

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

For a complete list of videos, visit our video library