« previous next »

Author Question: If gastrulation was blocked by an environmental toxin, then A) cleavage would no (Read 705 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Oct 2, 2013
If gastrulation was blocked by an environmental toxin, then
A) cleavage would not occur in the zygote.
B) embryonic germ layers would not form.
C) fertilization would be blocked.
D) the blastula would not be formed.
E) the blastopore would form above the gray crescent in the animal pole.


clippers!

  • Hero Member
  • *****
  • Posts: 828
Reply #1 on: Oct 6, 2013
For sure it has to be B Mark as solved once you're done!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Blocked Artery Blocked Artery
Environmental Issues Environmental Issues
Environmental Challenges Environmental Challenges
Environmental policy Environmental policy
A company that makes environmental measuring devices has calculated their revenue and costs as ... A company that makes environmental measuring devices has calculated their revenue and costs as ...
Gastrulation summarized Gastrulation summarized
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

For a complete list of videos, visit our video library