The presence of limestone<span> and other calcium carbonate rock in </span>lakes<span> and streams helps to maintain a constant pH </span>because<span> the minerals react with the excess </span>acid<span>. However, </span>acid rain<span> eventually can overcome the buffering capacity of the surface water.
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Answer:
Genotype of Parent 1: Aa
Genotype of Parent 2: aa
Probability of offspring having freckles: 50%
Explanation:
The genotypes of the parents are actually given in the Punnett Square. And, since out of 4 options 2 are all freckles, probability is 50%.
Answer:
Digestive enzymes
Explanation:
Digestive enzymes are substances that helpbreak down macronutrients into smaller compounds to promote their absorption.
Answer:Different species are connected by the space in which they live, but also by the food web.
Explanation:
There are many areas inhabited by different plant and animal species. What is common to all species is the space they inhabit. In addition to the many animal species that are different from one another, they are connected by a food web. For example, the area occupied by hyena, cheetah, crocodile and antelope, the last on this list will be food for all other species and if different from one another.
