Question

1. ___________ structures are similar adaptive structures found in species that evolved in similar environments but...

1. ___________ structures are similar adaptive structures found in species that evolved in similar environments but do not have the same origin.?

homologous

analogous

2. When you sprint to catch the bus, your breathing rate increases. With respect to blood O2 concentrations, this process represents:

positive feedback

feedback inhibition

negative feedback

3._____ structures are found in species that evolved in different environments but have an underlying similarity in pattern and logic because they are modifications of an original ancestral structure.

homologous

analogous

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Answer #1

1. Analogous structures are similar adaptive structures found in species that evolved in similar environments but do not have the same origin. This is due to

2. This is a negative feedback process because when the blood oxygen level decreases it will stimulate the brain stem to increase the breathing rate.

3. Homologous structures are found in species that evolved in different environments but have an underlying similarity in pattern and logic because they are modifications of an original ancestral structure.

Thank you...:)

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