I'd say A. Because the only data we have is that at a 5.4 pH level, flies are not welcome.
Hope it helped!
Answer:
c) The presence of an ephiphyseal line
Explanation:
The options should be:
a) the presence of osteoblasts
b) the presence of osteons
c) The presence of an ephiphyseal line
d) the presence of hyaline cartilage on the ends of the bone
Explanation:
In vertebrates, the epiphyseal line is formed once the bone is completely grown. This occurs inside a plate known as the epiphyseal plate.
From the age of 18 to 21, the bone stops growing and the cartilage inside this plate gets replaced by bone. However, bones can keep growing in width until we are approximately 25 years old.
Therefore, the physical sign that indicates that a bone cannot continue longitudinal growth would be the presence of an ephiphyseal line.
Answer:
The scientist would be an ecologist i.e. an expert in ecology.
Explanation:
The scenario in question investigates the affect of a biotic factor (beaver population) on various abiotic factors such as water flow and soil nutrient content.
In this context, ecology is the scientific study of interactions between biotic and abiotic components of an ecosystem.
