Answer;
Muscle cells in oxygen deprivation convert pyruvate to lactate, and in this step gain NAD+.
Explanation;
When oxygen is insufficient or not present the muscle cells for further oxidation of pyruvate and NADH produced in glycolysis, NAD+ is regenerated from NADH by reduction of pyruvate to lactate.
Pyruvate is converted to lactate by the enzyme lactate dehydrogenase.
Answer:
Plants, algae and photosynthetic bacteria provide an energy source for a majority of the worlds ecosystems.
Explanation:
Answer: D. increase surface area
Explanation:
- Microvilli are hairs that aid in absorption of nutrients. In the small intestine, these cells contain microvilli, which are tiny hair-like projections that increase nutrient absorption. These projections increase the surface area of the small intestine allowing more area for nutrients to be absorbed.
Answer:
Codominance
Explanation:
In some examples, one allele is dominant to another one. This means that it will be expressed over its recessive counterpart. So if an individual carries a dominant and a recessive allele, they will show the dominant phenotype. To display the recessive phenotype, the genotype must not have the dominant allele, and have 2 copies of the recessive gene instead.
In this case, heterozygotes express both alleles. This is an example of codominance. In codominance, neither allele is dominant/recessive, and the phenotypes of both alleles are expressed in heterozygotes
Nanotechnology is in fact effective at helping clean up PCB’s or polychlorinated biphenyls and
similar compounds with the use of nanoparticles. Aside from this, it also <span>protect workers exposed to pesticides occupationally by regulating
pesticide use. </span>
<span>In addition, it reduces
the concentration of pesticides found in watersheds. Therefore, the answer is
A. only promote pesticide use in rural environment. </span>
