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WorksheetsWeek 5 Bio 111 Lecture Assignment
Total questions: 15
Worksheet time: 8mins
During a biology class, Ava asked her teacher why people have different skin colors. The teacher explained that skin color is due to a pigment called
Keratin
Melanin
Chromatin
Epithelium
Ethan noticed that when he exercises, he starts sweating to regulate his body temperature. This is an example of
negative feedback
positive feedback
a homeostatic imbalance
aging
These cells give the epidermis its protective properties.
keratinocytes
melanocytes
Langerhans' cells
Merkel Cells
Which letter refers to the hypodermis?
A
B
C
D
E
Which letter refers to the dermis?
A
B
C
D
E
Wrinkles are a result of
overstretching of the dermis.
sudden loss of adipose tissue.
breakage of collagen fibers in the dermis.
loss of elastin fibers in the dermis.
During a biology class, Mia noticed that she got goosebumps when the classroom got chilly. Goosebumps are caused by contractions of the ______ muscle.
Arrector pili
Apocrine
Eccrine
Sebaceous
The ____ is the largest organ of the body.
pancreas
skin
kidney
lung
Benjamin is studying the human body systems. What are the functions of the integumentary system? (mark all that apply)
Produce vitamin D
Regulate body temperature
Protect the body
Eliminate wastes
Break down food
Abigail is studying how organisms maintain homeostasis. She learns that the two types of feedback systems involved are:
positive and negative
receptor and effector
static and dynamic
minor and major
What is the point of a feedback loop?
To provide the body with more energy
To provide the body with more food
To make sure the conditions in the body are always changing
To make sure the conditions in the body remain stable
What type of feedback loop is shown?
negative
neutral
positive
