« previous next »

Author Question: What were the factors that made it difficult for animals to adapt to land? What will be an ideal ... (Read 128 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Jul 15, 2018
What were the factors that made it difficult for animals to adapt to land? What will be an ideal response?

Question 2

How do you think the evolution of jawed fishes and other predatory creatures affected the marine
  ecosystem? What will be an ideal response?



rnehls

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 15, 2018
Answer to Question 1

On land, animals had to worry about reproduction, desiccation, gravity, and the extraction of oxygen
from the atmosphere.



Answer to Question 2

The development of predators had a major impact because organisms that had previously not needed
defense mechanisms either developed defense systems or suffered great population losses.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

The fruits of DNA technology, made possible by bacterial genetics The fruits of DNA technology, made possible by bacterial genetics
An experimentally made Oldowan type core. An experimentally made Oldowan type core.
“To confess my weakness,” Hamilton wrote when he was only fourteen, “my ambition is prevalent.” This “To confess my weakness,” Hamilton wrote when he was only fourteen, “my ambition is prevalent.” This
A technician-made adapter used to test exhaust system back pressure. A technician-made adapter used to test exhaust system back pressure.
Structures of four common types of DNA-binding motifs from eukaryotic transcription factors Structures of four common types of DNA-binding motifs from eukaryotic transcription factors
Other Factors Affecting Pulmonary Ventilation Other Factors Affecting Pulmonary Ventilation
Video: Male Reproductive System - Testosterone

For a complete list of videos, visit our video library