1 Which of the following is a question about physiology? ( Concept 40.0)
SHOW HINT
Do salamanders and frogs have the same number of toes on their front feet?
Thing
Are there any living birds with claws on the ends of their wings?
How is blood pressure affected by physical activity?
Do baleen whales have teeth?
Is it true that apes do not have fleshy tails like monkeys?
2
Most cells are microscopic because at this small size,
Concept
40.1)
SHOW HINT

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms