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Author Question: For the first two weeks of a human pregnancy, the developing organism is referred to as a(n) a. ... (Read 67 times)

@Brianna17

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on: Jun 21, 2018
For the first two weeks of a human pregnancy, the developing organism is referred to as a(n)
 
  a. zygote.
 b. embryo.
 c. blastocyst.
 d. fetus.

Question 2

Muscle fibers contract when Z lines move _________ and the sarcomeres _________.
 
  a. farther apart; stretch
 b. farther apart; shorten
 c. closer together; stretch
 d. closer together; shorten


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14vl19

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Reply #1 on: Jun 21, 2018
Answer to Question 1

a

Answer to Question 2

d


@Brianna17

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Reply 2 on: Jun 21, 2018
Wow, this really help

amcvicar

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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