The enzyme pepsin functions with a very low pH of around 2. It is found in the stomach, with the acidity coming from the hydrochloric acid present there. it breaks proteins into amino acids.
Answer:
2, 3, 1
Explanation:
For logistic population growth, the initial growth is slow while the population is trying to get acclimatized to the environment but the growth increases exponentially once it is done acclimatizing. The exponential growth continues until the carrying capacity is reached and then starts to fluctuate around the carrying capacity.<u> The carrying capacity signifies the maximum size of the population that the environment can support based on the resources that it has.</u> Hence, the logistic population growth curve forms a S shape.
In summary, the correct order of events is:
- <em>The population increase begins to slow</em>
- <em>The population increases exponentially</em>
- <em> The population fluctuates near carrying capacity</em>
Therefore, the order is 2, 3, 1.
Answer:
Genetic diversity is important because it could ensure that certain groups of individuals, species, or populations will be able to adapt to certain environmental factors. Besides having to deal with environmental conditions, genetic diversity renders them the ability to resist emerging diseases and epidemics.
Answer:
FALSE
Explanation:
But carbon-14 dating won't work on dinosaur bones. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old. Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old. To determine the ages of these specimens, scientists need an isotope with a very long half-life. Some of the isotopes used for this purpose are uranium-238, uranium-235 and potassium-40, each of which has a half-life of more than a million years.
