Answer:
b
Explanation:
mutations in an amino acid sequence affect the function of its protein
Answer:
C) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere.
Explanation:
Electromagnetic waves do not require a medium to travel. they can travel through vacuum also. for example:- light wave is an electromagnetic wave and it can travel through vacuum also.
On the other hand, sound wave require a medium to travel. sound waves can not travel through vacuum.
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Physical exercise preserves bone mass. Measurements of bone biomarkers may reflect the events in bone during exercise. Fifteen healthy, well-trained individuals (7 men and 8 women) performed a running test for 21 min until exhaustion. Venous blood samples were drawn before and 30 min after the exercise to measure the levels of osteocalcin, the carboxyterminal propeptide of type I procollagen (PICP) and the carboxyterminal cross-linked telopeptide of type I collagen (ICTP). After exercise, the women had a marked increase in serum osteocalcin concentrations (from 7.5±5.0 μg/1 to 11.5±3.0 μg/1), whereas the level was unaffected in the men (from 14.5±3.0 μg/1 to 13.5±4.6 μg/l). In the men there was a marked increase in PICP (from 240±47 μg/1 to 268±56 μg/1) that was not seen in the women (from 244±70 μg/1 to 253±60 μg/1). In neither group did ICTP levels change. In conclusion, significant responses were seen in PICP and osteocalcin during exercise, indicating that such measurements may be valuable for the further delineation of the effects of physical activity on bone. Furthermore, the different responses in men and women point to interesting areas for future studies.
Answer:
Explanation:
The reactants for cellular respiration are the products of photosynthesis. The products of cellular respiration are the reactants in photosynthesis.
- During photosynthesis, green plants manufacture their food using sunlight to synthesize glucose from water and carbon dioxide.
- The other product of the process is oxygen gas.
- During cellular respiration, the glucose is combined with oxygen to produce energy, carbon dioxide and water.
