Answer:
d. 28,650 years
Explanation:
Since 14C has a single half-life of 5,730 years
The number of years that is going to make up 5 half-lives for 14C will be;
5,730 years × 5 = 28,650 years
The statement that when consumed together, grains and legumes are good complementing protein sources is true.<span>
</span><span>Legumes are plants that include beans, lentils, peas and peanuts, while grains are </span><span>wheat, oats, corn, rice..</span><span>
They are less expensive than meat, poultry and fish.
</span>When eaten together provide a complete protein essential for health.
What are the other choices ????
Dinoflagellates are large group of flagellate eukaryotes (multicellular organisms) that constitute the group dinoflagellata. Red tides is a common name for alga bloom (large concentrations of aquatic microorganisms ) which when caused by a few species of dinoflagellate and the bloom takes on a red or brown color. Therefore, the answer to the question is red tides.
<h3><u>Answer;</u></h3>
D) Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
<h3><u>Explanation;</u></h3>
- <em><u>Mutations are sudden, random changes that occur spontaneously in the genetic make up of an organism.</u></em> Mutation are caused by various factors which includes errors in meiosis, and other factors such as chemical mutagens.
- <em><u>Mutations may be beneficial and may play an important role in evolution as they are raw material of genetic variation</u></em>. <em><u>Mutations may lead to genetic variations in the genetic make up of an organism . Therefore mutations are important to mutation since they create new DNA sequences for a given gene and thus resulting to new alleles.</u></em>
