The Following Questions Refer to the Data Shown Below Figure 421
-Which of the Following Is a Characteristic of Both

question 50

Multiple Choice

The following questions refer to the data shown below.
Blood entering a capillary bed of a vertebrate was measured for the pressures exerted by various factors.
$$\begin{array} { l c c } & \begin{array} { c } \text { Arterial End of } \\\text { Capillary Bed }\end{array} & \begin{array} { c } \text { Venous End of } \\\text { Capillary Bed }\end{array} \\\hline \text { Hydrostatic pressure } & 10 \mathrm {~mm} \mathrm { Hg } & 14 \mathrm {~mm} \mathrm { Hg } \\\text { Osmotic pressure } & 26 \mathrm {~mm} \mathrm { Hg } & 26 \mathrm {~mm} \mathrm { Hg } \\\mathrm { PO } _ { 2 } & 100 \mathrm {~mm} \mathrm { Hg } & 42 \mathrm {~mm} \mathrm { Hg } \\\mathrm { PCO } _ { 2 } & 40 \mathrm {~mm} \mathrm { Hg } & 46 \mathrm {~mm} \mathrm { Hg }\end{array}$$
Figure 42.1
-Which of the following is a characteristic of both hemoglobin and hemocyanin?

• A)found within blood cells
• B)red in color
• C)contains the element iron as an oxygen-binding component
• D)transports oxygen
• E)occurs in mammals

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Definitions:

Ecological Theory

A framework for understanding the complex interrelations between organisms and their environment, emphasizing reciprocal influences.

Environmental Factors

Aspects of the environment that can influence living organisms, including natural elements like climate and man-made changes, which can impact health, behaviors, and development.

Ethologist

A scientist who studies animal behavior in natural environments, focusing on instinctual or innate behaviors.

Well-Controlled Research Lab

A research setting where experiments are conducted with strict adherence to protocols to minimize variables and bias, ensuring reliable and valid results.