« previous next »

Author Question: Internal and external fertilization both A) produce single-celled zygotes. B) oc (Read 502 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Sep 28, 2013
Internal and external fertilization both
A) produce single-celled zygotes.
B) occur only among invertebrates.
C) occur only among terrestrial animals.
D) depend on the use of intromittent copulatory organs.
E) occur only among birds.


coco

  • Hero Member
  • *****
  • Posts: 739
Reply #1 on: Sep 30, 2013
For sure it has to be A 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?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

External intercostals External intercostals
Internal and External Environment Internal and External Environment
Development of the External Genitalia Development of the External Genitalia
Internal Anatomy of the Nose Internal Anatomy of the Nose
Multiple origins of replication on a single chromosome from Drosophila melanogaster Multiple origins of replication on a single chromosome from Drosophila melanogaster
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library