Blood is returned to the heart of a fish from the tail fin through a vessel known as the:

CO2 is removed from various molecules by the process:
decarboxylation

What cells control the opening and closing of the stomata in leaves?
guard cells

The grasshopper breathes by means of:
a tracheal system

The garden snail breathes using:
lungs

What is the function of the KOH in the respirometer?
to absorb CO2

Air enters the snail through the:
respiratory pore

Tracheids:
join to form xylem

The plant to be used to measure transpiration in this exercise is:
ivy

Blood is returned to the heart of a fish from the tail fin through a vessel known as the:
posterior vena cava

The tracheophytes are commonly known as:
vascular plants

Diffusion is a(an):
slow process

Transport systems beyond simple mechanisms such as cyclosis are needed by:
large multicellular organisms

Term that refers to when an enzyme is irreversibly damaged
denature

In the experiment examining the effect of temp. on enzyme activity:
saliva contains the enzyme
starch is the substrate

How is the digestive tract of Rotifera different from that of Hydra?
more complex than hydra
has more openings than hydra

When chlorophyll extract in a test tube is exposed to light, it will:
emit red light
use light energy to excite electrons

Why was a heat shield used for study of light intensity vs. rate of photosynthesis?
heat affects enzyme activity
Elodea is a water plant and is not used to warm temperatures
to reduce confounding factors