Question
11. A cell that has half the usual number of chromosomes is called what? a. Haploid b. Diploid c. Homozygous d. Heterozygous 12. How long have Homo Sapiens lived on earth according to fossil record a. 3-4 Billion years ago b. 200,000-300,000 years ago c. 6-7 Million years ago d. 4.5 Billions years ago 13. What branch on the evolutionary tree did Humans evolve from? a. Cytolysis b. Monkeys c. Great Apes/Hominoids d. Archaea
Answer
4.6
(194 Votes)
Hazel
Master · Tutor for 5 years
Answer
Question 11: a. HaploidQuestion 12: b. 200,000-300,000 years agoQuestion 13: c. Great Apes/Hominoids
Explanation
## Question 11:A cell with half the typical number of chromosomes is known as haploid. These cells contain a single set of chromosomes. In human beings, for instance, our somatic (body) cells contain 23 pairs of chromosomes (46 in total), hence are diploid. However, only half of these, i.e., 23 individual unpaired chromosomes, are found in our gamete cells (sperm and egg cells), a significant characteristic of haploid cells in human beings.## Question 12:Human beings, Homo sapiens according to their scientific nomenclature, have not been around for a particularly long time when we consider the existence of life on this planet over the eons. According to the fossil record, Homo sapiens have populated the earth for about 200,000 to 300,000 years.## Question 13:We are, after all, part of the animal kingdom's primate order. Looking more closely, you'll notice we're part of the hominoids suborder (or apes). The hominoids split again about 14 to 16 million years ago, resulting in the family tree of "great apes," which contains the humans from the Homo genus. So, the Homo sapiens (read as: modern humans) have evolved from the Great Apes branch of the evolutionary tree.