Answer:
Tubercle: allows tendons to attach to bone
Foramen: Allows blood vessels and nerves to travel through bone.
Fossa: Allows to bones to form a joint.
Explanation:
The tubercle or tuberosity in the human seletal system, is a protrusion that allows for attachment of skeletal muscles. The muscles attach by tendons, where the enthesis is the connective tissue between the tendon and bone.
Foramina inside the body of humans and other animals typically allow muscles, nerves, arteries, veins, or other structures to connect one part of the body with another.
The answer is D since organism x has a n optimal temperature of 37 degrees Celsius and when organisms y enzyme gets incorporated with enzyme x it will increase enzyme’s x temperature therefore enzyme x will denature meaning it will unfold and it will loose its properties hence loosing its activity because its temperature has been altered.
The hormone calcitonin, which is produced by the parafollicular or C cells of the thyroid, has the opposite effect on blood calcium levels as does PTH. I hope this helps! : )
