This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Seth and Zack are twin brothers; Seth is tall with blue eyes and brown hair and Zack is short with ... (Read 247 times)

jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
on: Jun 18, 2018
Seth and Zack are twin brothers; Seth is tall with blue eyes and brown hair and Zack is short with brown eyes and red hair. How were they most likely conceived?
 
  a. One sperm fertilized one egg, which then split into two, early on in development.
  b. Two sperm fertilized one egg, which split into two, early on in development.
  c. One sperm fertilized two separate eggs.
  d. Two sperm fertilized two separate eggs.

Question 2

What is a typical change that occurs in the circulatory system during pregnancy?
 
  a. A woman's blood volume decreases up to 50.
  b. A woman's blood volume increases up to 50.
  c. The speed of blood flow decreases up to 50.
  d. The speed of blood flow increases up to 50.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jun 18, 2018
Answer to Question 1

ANS: D

Answer to Question 2

ANS: B


jilianpiloj

  • Member
  • Posts: 521
Reply 2 on: Jun 18, 2018
Gracias!

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

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?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Human Hair Human Hair
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Why is the sky blue? Why is the sky blue?
Brown teeth Brown teeth
A photograph of Commodore Matthew Perry in 1855 juxtaposed with a Japanese portrait of him. When Per A photograph of Commodore Matthew Perry in 1855 juxtaposed with a Japanese portrait of him. When Per
Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap Dred Scott and his wife and children are featured on the cover of Frank Leslie’s Illustrated Newspap
Video: Mendel's pea plant, Pisum sativum experimental

For a complete list of videos, visit our video library