Of the many hominim species that preceded present day humans, which one does current evidence indicate...
Homework Answers
The first hominim to leave Africa was homoerectus. Homoerectus went from Africa to Asia approx. 1.9 to 100ybb
•Considered the first homonim in Asia
•First homonim to leave Africa → approx. 1.9 - 1.0 ybp left
Africa
•Discovered by Eugene Dubois
•Thought to be the 1st to control fire
•Existed during Middle Pleistocene (c. 750,000-128,000 ybp)
•Originated 1.9-.3 million ybp
•Associated with stone tools in the Philippines
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Of
the many hominim species that preceded present day humans, which
one does current evidence indicate...
Which statement about Neanderthals is false? Neanderthals a. share a common ancestor with humans that lived...
Which statement about Neanderthals is false? Neanderthals a. share a common ancestor with humans that lived about 500,000 years ago. b. did probably interbreed with humans and genetic exchange left many of us with genomes that are roughly 3% Neanderthal. c. were the first hominin to extend its range beyond Africa, about 1.8 million years ago. d. had brains larger than modern humans
Humans and Chimps share a 9,826 nucleotides out of 10,000 in sequences. Therefore, the Human and...
Humans and Chimps share a 9,826 nucleotides out of 10,000 in
sequences. Therefore, the Human and Chimp nucleotide difference out
of 10,000 is 174. Gorillas and my new species differ by only 165
nucleotides. A) K=(-3/4)In(1-(4(0.0174)/3))=0.0176050171.
L=K/2t=0.0176050171/2(6600000)=1.33x10^-9. B)
K=(-3/4)In(1-(4(0.0165)/3))=0.0166842067. t=K/2L=0.0166842067. That
is 6.2x10^6 years ago. By using the molecular clock method to
estimate the two species, we can say that the species most likely
diverged nearly 6 million years ago. C) I am uncertain what to
write here but I...
The group of organisms humans belong to is relatively small. All living organisms share a common...
The group of organisms humans belong to is relatively small. All living organisms share a common ancestor, as evidenced by the commonality of DNA and ribosomes. Humans are not a unique form of life. Our ability to learn about the natural world does provide us an advantage over many species, especially if we use this advantage wisely. Antibiotics are prevalent in bacteria and fungi, whereas other drugs are derived from plants. Humans are not the most common species on Earth....
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The...
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The moa, a giant flightless bird, was hunted to extinction on New Zealand in the early 1400s. The human population of New Zealand was no more than 2,500 at the time when the moa went extinct. We can make some simplified calculations to see how many moas were hunted per year (a) Humans first settled New Zealand and began hunting moas in 1314. The last...
All of the features below are features that characterize humans, though very few of them are...
All of the features below are features that characterize humans,
though very few of them are unique to humans. Rather, most of them
are present in our species because of our evolutionary history
(they were present in an ancestral species at some point in time,
and eventually passed on to us). For example, the bilateral
symmetry that characterizes the human body plan is a feature that
evolved in a primitive animal species that lived hundreds of
millions of years ago;...
Until recently, there were two competing theories about the origin of our species- "modern Homo sapiens"....
Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
9. What does the evidence from hyperinflations indicate with respect to the quantity theory of money?...
9. What does the evidence from hyperinflations indicate with respect to the quantity theory of money? (1 mark) a. Evidence shows that money growth and inflation moved together, which supports the quantity theory. b. Evidence shows that money growth and inflation moved together, which does not support the quantity theory. c. Evidence shows that money growth and inflation did not move closely with each other, which supports the quantity theory. d. Evidence shows that money growth and inflation did not...
Bats are nocturnal mammals, feeding on insects at night and sleeping during the day. Many species...
Bats are nocturnal mammals, feeding on insects at night and sleeping during the day. Many species of bats use bridges as daytime sleeping places. Their choice of daytime position on the undersurface of a bridge appears to be non-random. One theory is that the bats choose locations that will keep them safer from predators. The beams that support a bridge create two kinds of spaces: wide (approximately 55 cm) and narrow (approximately 17 cm); biologists believe the narrow spaces provide...
Bats are nocturnal mammals, feeding on insects at night and sleeping during the day. Many species...
Bats are nocturnal mammals, feeding on insects at night and sleeping during the day. Many species of bats use bridges as daytime sleeping places. Their choice of daytime position on the undersurface of a bridge appears to be non-random. One theory is that the bats choose locations that will keep them safer from predators. The beams that support a bridge create two kinds of spaces: wide (approximately 55 cm) and narrow (approximately 17 cm); biologists believe the narrow spaces provide...
1. Let's explain the current distribution of hominins on planet earth A. Which hominin species are...
1. Let's explain the current distribution of hominins on planet earth A. Which hominin species are now alive? B. Please list their ancestors beginning about 4 million years ago 1. We define living taxonomic groups based on suites of shared derived features. But all creatures, living or extinct, have to fit into our phylogenetic classification systems. A. We discussed some derived features of hominins that set us apart from the other living great apes. What is the characteristic trait that...
Humans and Chimps share a 9,826 nucleotides out of 10,000 in
sequences. Therefore, the Human and Chimp nucleotide difference out
of 10,000 is 174. Gorillas and my new species differ by only 165
nucleotides. A) K=(-3/4)In(1-(4(0.0174)/3))=0.0176050171.
L=K/2t=0.0176050171/2(6600000)=1.33x10^-9. B)
K=(-3/4)In(1-(4(0.0165)/3))=0.0166842067. t=K/2L=0.0166842067. That
is 6.2x10^6 years ago. By using the molecular clock method to
estimate the two species, we can say that the species most likely
diverged nearly 6 million years ago. C) I am uncertain what to
write here but I...
The group of organisms humans belong to is relatively small. All living organisms share a common ancestor, as evidenced by the commonality of DNA and ribosomes. Humans are not a unique form of life. Our ability to learn about the natural world does provide us an advantage over many species, especially if we use this advantage wisely. Antibiotics are prevalent in bacteria and fungi, whereas other drugs are derived from plants. Humans are not the most common species on Earth....
EXERCISE 18.6 How Quickly Can Humans Hunt a Species to Extinction? Name: Course: Section: Date: The moa, a giant flightless bird, was hunted to extinction on New Zealand in the early 1400s. The human population of New Zealand was no more than 2,500 at the time when the moa went extinct. We can make some simplified calculations to see how many moas were hunted per year (a) Humans first settled New Zealand and began hunting moas in 1314. The last...
All of the features below are features that characterize humans,
though very few of them are unique to humans. Rather, most of them
are present in our species because of our evolutionary history
(they were present in an ancestral species at some point in time,
and eventually passed on to us). For example, the bilateral
symmetry that characterizes the human body plan is a feature that
evolved in a primitive animal species that lived hundreds of
millions of years ago;...
Until recently, there were two competing theories about the
origin of our species- "modern Homo sapiens". The first (single
African origin) is that all modern humans descended from a recent
ancestor in Africa, less than 200,000 years ago, and that our
ancestors replaced the archaic human species they found in their
migrations, including Neanderthals and Denisovans. (In the last few
years evidence from nuclear genomes of fossil humans has indicated
that there was limited interbreeding between the ancestors of
modern...
1. Let's explain the current distribution of hominins on planet earth A. Which hominin species are now alive? B. Please list their ancestors beginning about 4 million years ago 1. We define living taxonomic groups based on suites of shared derived features. But all creatures, living or extinct, have to fit into our phylogenetic classification systems. A. We discussed some derived features of hominins that set us apart from the other living great apes. What is the characteristic trait that...
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