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SECONG PART TO THE WORKSHEET HERE!!!!!13. The different functions of the skeletal system include all of the following EXCEPT: *a) Forms blood cellsb) Protects internal organsc) Stores hormonesd) Assists movement14. Which type(s) of muscle can contract without stimulation from the nervous system? *a) skeletal onlyb) skeletal and smoothc) smooth and cardiacd) cardiac only15. Which division of the nervous system speeds up your heart rate? *a) somaticb) autonomicc) centrald) brain and spinal cord16. True or false. The pregnancy timeline begins on the first day of a women's menstrual cycle. *a) Trueb) False17. Which of the following are events following fertilization? (Check all that apply. There may be more than one answer). *a) Embryo develops into the fetusb) Zygote cell rapidly dividesc) Embryo embeds into uterine walld) Zygote travels down the fallopian tube toward the uterus18. Human development occurs in a series of stages, or processes. Which of the following best describes the key events that occur during gastrulation? *a) The blastocyst attaches to the wall of the uterus and cells begin differentiating.b) Cells migrate from the ectoderm to form the mesoderm; resulting resulting in the formation of three cell layers.c) A sperm and egg fuse producing a fertilized egg.d) Mesodermal tissue differentiates into the notochord and the nervous system develops.19. How do endocrine glands send messages to other organs? (Select the best answer.) *a) They release impulses that travel in the bloodb) They release hormones that travel in the bloodc) They release insulin that travels in the bloodd) They release action potentials that travel in the blood20. All of the following are true about the integumentary system EXCEPT: *a) It forms vitamin Eb) It is a barrier against infection and injuryc) It removes wastesd) It gathers information and regulates body temperature21. The brain forms in which stage / trimester? *a) Blastula stageb) Trimester 1c) Trimester 2d) Trimester 3