On a very hot day in summer, you go outside and take your temperature, it is 37 degrees Celsius. On another day, this time a very cold day in winter, you go outside and take your temperature, again it is 37 degrees Celsius.
This example illustrates
a. adaptation.
b. cellular reproduction.
c. respiration.
d. homeostasis.
e. digestion.
Answer d. homeostasis.
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The following question(s) relate to the data table below, showing typical fluctuating pH and dissolved oxygen levels in a fish pond with a heavy concentration of algae over a 24-hour period.TimeOxygen (ppm)pH2 a.m.4.57.74 a.m.2.87.26 a.m.2.26.88 a.m.2.56.810 a.m.3.97.2Noon6.57.72 p.m.10.08.34 p.m.12.18.86 p.m.13.19.28 p.m.13.09.210 p.m.12.08.8Midnight10.88.3In such a pond that contains algae and fish, what processes are happening?
A. Only cellular respiration is happening, carried out by both the algae and the fish B. Only photosynthesis is happening, carried out by the algae C. Both photosynthesis (carried out by the algae) and cellular respiration (carried out by the fish) are happening D. Both photosynthesis (carried out by the algae) and cellular respiration (carried out by both the algae and the fish) are happening
What is an ecotone?
a. a parasite that is external to the body b. a parasite that is internal to the body c. an example of an individualistic hypothesis d. a zone between two communities
e. the combination of species in an environment that is constantWhich of the following human syndromes is a monosomy?
a. Turner syndrome b. Klinefelter syndrome c. Down syndrome d. Barr body syndrome
Mitochondria differ from hydrogenosomes in that ________.
A. pyruvate is catabolized as a continuation of the respiratory pathway in mitochondria, whereas in hydrogenosomes, fermentation takes place B. mitochondria have a double membrane system, whereas hydrogenosomes have only a single membrane C. mitochondria are found in eukaryotic cells, whereas hydrogenosomes are found in bacteria and archaea D. mitochondria generate ATP, whereas hydrogenosomes generate NADH