« previous next »

Author Question: Muscle and bones develop during the embryonic period from cells contained in the ____ layer. a. ... (Read 100 times)

Medesa

  • Hero Member
  • *****
  • Posts: 507
on: Jun 22, 2018
Muscle and bones develop during the embryonic period from cells contained in the ____ layer.
 
  a. mesoderm
  b. endoderm
  c. placenta
 d. ectoderm

Question 2

Which factor seems to be most involved in timing of menarche in many industrialized nations over the past 150 years?
 
  a. Parenting skills
  b. Nutrition
 c. Education
 d. Genetics


dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 22, 2018
Answer to Question 1

a

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Medesa

  • Hero Member
  • *****
  • Posts: 507
Reply #2 on: Jun 22, 2018
Thank you


dellikani2015

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jun 22, 2018
No problem :)


« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Transfection in Eukaryotic Cells p2 Transfection in Eukaryotic Cells p2
Measuring the Activity of Feature Detection Cells Measuring the Activity of Feature Detection Cells
The muscle-spindle feedback circuit The muscle-spindle feedback circuit
Muscle weakness caused by myasthenia gravis is evident in the eyes of this patient. Muscle weakness caused by myasthenia gravis is evident in the eyes of this patient.
Embryonic Period - By the second day after fertilization Embryonic Period - By the second day after fertilization
miRNAs regulate embryonic stem cell differentiation miRNAs regulate embryonic stem cell differentiation
Video: Insulin (glucose uptake by body cells), glycogenesis and lipogenesis

For a complete list of videos, visit our video library