30 Questions
What do osmoreceptors in the brain detect?
Changes in the total solute concentration of the blood
What type of receptors do sharks have in their snouts?
Electroreceptors
What is the function of the semicircular canals in the human ear?
To maintain balance
What is the main function of photoreceptors?
To detect energy in the form of light
What is the role of the Eustachian tube or auditory tube?
To connect the ear to the pharynx and maintain equal air pressure
What is the combination of senses that makes sharks highly efficient predators?
Electroreception, sense of smell, and lateral line system
What percentage of all plant species are angiosperms?
90%
What is the primary advantage of flower reproduction in plants?
Increased seed dispersal
Which part of a plant's root prevents the passage of water and solute particles via the apoplast route?
Casparian strip
Why are tomatoes and squash classified as fruits?
Because they are derived from the ovary of a flower
What is the main function of plant cells regulating the intake of nutrients from other cells?
To regulate the intake of nutrients from other cells
What is the primary difference between an epiphytic and a parasitic plant?
Their dependence on other plants
What would you expect to observe in plants grown in the absence of light?
Yellow leaves and short internodes
What is the primary purpose of a flower dissection?
To study the reproductive cycle of a plant
Which plant organs are responsible for photosynthesis?
Leaves
What is the effect of the 10^-8 molar solution of IAA on the growth of oat shoots and roots?
It stimulates growth in shoots and inhibits growth in roots
What is a characteristic of a student's work that demonstrates 'evident pre-collegiate surgical skills'?
Good motor skills
How many points are possible for the execution of dissection in the grading rubric?
15
What is the characteristic feature of the rafflesia, the world's largest single flower?
Its strong, unpleasant odor
Which of the following statements about meristems is true?
They are absent from animals and provide cells for increase in diameter of stems
What is a practical application of the plant growth substance IAA?
As a rooting powder to promote root growth
What is the average diameter of the rafflesia, the world's largest single flower?
1 meter
What is a function of auxin (IAA) in plant growth?
To stimulate growth in stems and roots
What is the characteristic feature of eudicot plants in terms of their leaves?
They have leaves with multiple veins
What is the function of a hydrostatic skeleton?
To provide support for muscle action and cushioning of body parts from shocks
What is characteristic of the phylum Arthropoda?
Having an exoskeleton
What is the function of the knobs and plates on the inner surfaces of an exoskeleton?
To provide a surface for muscle attachment
Why does an arthropod need to molt?
To allow for growth by replacing the exoskeleton with a larger one
How many times do most insects shed their exoskeleton before reaching adulthood?
4-8 times
What is the main component of an exoskeleton?
Proteins and chitin
Assess your flower dissection skills with this grading rubric. Evaluate your execution, task completion, and content communication to improve your biology lab skills.
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