« previous next »

Author Question: By 9 to 12 months, infants can pick up objects with their thumb and a single finger, called a. a ... (Read 134 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jun 22, 2018
By 9 to 12 months, infants can pick up objects with their thumb and a single finger, called
 
  a. a grasping reflex. c. directed reaching.
  b. prereaching. d. a pincer grasp.

Question 2

From an evolutionary perspective, precise hand control was probably the main advantage derived from
 
  a. upright walking. c. the transition from hunters to gatherers.
  b. increased brain size. d. constant movement from place to place.


gcook

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jun 22, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Mechanism of transport by a transporter, also called a carrier. Mechanism of transport by a transporter, also called a carrier.
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Finger cracking Finger cracking
Transferring Sterile Objects Using Transfer Forceps Transferring Sterile Objects Using Transfer Forceps
Pincement. Tapotement performed by gently picking up superficial tissues between the thumb and the ... Pincement. Tapotement performed by gently picking up superficial tissues between the thumb and the ...
Squeeze along the length of each finger from web to nail. First along top/bottom and then along the ... Squeeze along the length of each finger from web to nail. First along top/bottom and then along the ...
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library