Author Question: Briefly state some of the problems that plants had to overcome as they adapted to land and how they ... (Read 62 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667

Briefly state some of the problems that plants had to overcome as they adapted to land and how they
  did that. What will be an ideal response?



Question 2

Briefly state why the development of the amniote egg was so significant in the evolution of the
  reptiles. What will be an ideal response?




Mholman93

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

Plants had to solve some of the same problems that animals did by dealing with the effects of
desiccation, gravity, and reproduction. Vascular plants have a tissue system for the movement of water
and nutrients, and for support. The development of seeds allowed plants to reproduce without
problems of drying out.



Answer to Question 2

Amphibians were limited in colonizing land because they had to return to water to lay their gelatinous
eggs. Reptiles developed amniote eggs in which the developing embryo is surrounded by a liquidfilled
sac and provided with food and a waste sac. This egg allowed reptiles to colonize all parts of the
land.




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

For a complete list of videos, visit our video library