« previous next »

Author Question: If humans had been present to build log structures during the Carboniferous peri (Read 1815 times)

Sandstorm

  • Sr. Member
  • ****
  • Posts: 268
on: Jul 22, 2013
If humans had been present to build log structures during the Carboniferous period (they weren't), which plant types would have been suitable sources of logs?
A) whisk ferns and epiphytes
B) horsetails and bryophytes
C) lycophytes and bryophytes
D) ferns, horsetails, and lycophytes
E) charophytes, bryophytes, and gymnosperms


Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
Reply #1 on: Jul 24, 2013
Try D, I remember this on my test last week. I'm sure I got it right ;)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Sandstorm

  • Sr. Member
  • ****
  • Posts: 268
Reply #2 on: Jul 31, 2013
Big respects :D Best homework site every.


« previous next »
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

A molecular model showing chromosome territories in the cell nucleus of humans A molecular model showing chromosome territories in the cell nucleus of humans
Reconstruction of a Carboniferous (Coal Age) forest. Reconstruction of a Carboniferous (Coal Age) forest.
Comparison of the structures of myoglobin (PDB ID 1MBO) Comparison of the structures of myoglobin (PDB ID 1MBO)
Internal structures at the back of the eye. Internal structures at the back of the eye.
The Structures of the Retina The Structures of the Retina
Structures of the Human Eye Structures of the Human Eye
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library