North Carolina Science Grade 7

Chapter 11: Regulation and Reproduction

Regulation and Reproduction

1.
Which of these connects the uterus to the outside of a woman's body?
A)the seminal vesicle
B)the sperm duct
C)the ovary
D)the vagina
2.
The __________ response to a fearful situation is one function of the endocrine system.
A)passive
B)fight-or-flight
C)come-or-go
D)reproductive
3.
The average length of a human female menstrual cycle is __________.
A)less than 24 h
B)more than 45 years
C)about 28 days
D)nine months
4.
__________ is the process when an egg is release from an ovary.
A)chemosynthesis
B)meiosis
C)respiration
D)ovulation
5.
The mixture of sperm and fluid is called __________.
A)uterus
B)testes
C)semen
D)ovulation
6.
Which of these is a hormone produced in the pancreas?
A)sperm
B)uterus
C)ducts
D)insulin
7.
The scrotum is __________.
A)part of the cardiovascular system
B)part of the nervous system
C)an internal organ
D)an external organ
8.
Sperm production is more efficient __________.
A)when produced in the ovaries
B)at lower temperatures
C)at higher temperatures
D)when the organs are inside the body
9.
Which of these is true about adulthood?
A)The growth of the skeletal system stops.
B)Males usually start their growth spurts.
C)The growth of the muscular system begins.
D)Females usually begin to have menstrual cycles.
10.
Which of these is true?
A)The endocrine system doesn't react as quickly as the nervous system.
B)The nervous system doesn't react as quickly as the endocrine system.
C)The nervous system and the endocrine system have similar reaction times.
D)The endocrine system and the nervous system do not work together.
11.
__________ carries nutrients and oxygen to the developing embryo from its mother.
A)The endocrine glands
B)The menstrual cycle
C)The negative-feedback system
D)The umbilical cord
12.
__________ are produced by the endocrine system.
A)Blood cells
B)Tissues
C)Nerves
D)Hormones
13.
__________ controls the amount of hormones the endocrine system sends.
A)The placenta
B)A fight-or-flight response
C)The pelvis
D)A negative-feedback system
14.
After birth, the baby's umbilical cord is clamped then cut. The scar that forms is called __________.
A)the semen
B)the cervix
C)the ovary
D)the navel
15.
Hormones from the endocrine system get to the bloodstream __________.
A)through cell division
B)through ducts
C)directly from mucous secretions
D)directly from the glands
16.
Fraternal twins __________.
A)can be one boy and one girl
B)cannot be one boy and one girl
C)can be only two girls
D)can be only two boys
17.
Which of these is an organ in the female reproductive system?
A)the uterus
B)the scrotum
C)the eggs
D)the urethra
18.
What is the period of the first four weeks of a baby's life called?
A)the adolescence period
B)the neonatal period
C)the adulthood period
D)the fertilization period
19.
Which of these is true?
A)Identical twins are always the same gender.
B)Triplets can never be a combination of boys and girls.
C)Identical twins can be one boy and one girl.
D)Triplets are always three boys.
20.
The joining of an egg and a sperm creates __________.
A)the urethra
B)the cervix
C)the zygote
D)the ovary
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