I would go with A, they inherited the wings even though they don't need them today, since evolution has changed the Ostrich in some way.
Answer:
Mechanical digestion
Chemical digestion
Explanation:
Food is physically broken into smaller parts. For instance, by chewing.
Food is broken down by acids and enzymes into its basic units.
Is heritable. Evolution is the change in allele frequency over a certain number of generations.
Answer:
b. Nitrification
Explanation:
Nitrifying bacteria are present in the soil that help in the oxidation process of ammonia that liberates the nitrite (NO2-) and nitrate (NO3-) compounds. These resulting compounds are captured by plants and this process is called nitrification. In the nitrification stage there are two chemical processes. That are:
• Nitrous: is the oxidation of ammonia (NH3) that results in the nitrite chemical compound (NO2-).
• Nitration: It is the oxidation of ammonia (NH3) that results in nitrate (NO3-).
Answer:
long tail for increased chance against predators - structural
vibrant tails to discourage predation - structural
external gills on head to filter out water - structural
certain types have upturned mouths to help eat from the surface of the water (e.g. tadpoles of Asian Horned Frog) - structural
the Honduran tadpole has a behavioral adaptation wherein it turns it's body upside down to reach the surface
Explanation:
