1)When evolution was first proposed, which of the following was used as evidence to support the idea? (1 point)
A)observations of nature***
B)laboratory experiments
C)extensive fossil collections
D)genetic sequences
2)How did Darwin and Lamarck differ in their thinking about change in species? (1 point)
A)Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism’s environment.
B)Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.***
C)Darwin thought that genes controlled a species’ ability to survive, while Lamarck thought that genes were only one part of a species’ ability to adapt.
D)Darwin thought that organisms had to struggle to survive, while Lamarck thought that organisms could make adjustments when conditions became difficult.
3)Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers (the part of the root that people eat) of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato blight that had wiped out the potato crops in Ireland in the mid-1800s. How did Burbank’s process in developing this potato compare to the process of natural selection? (1 point)
A)Burbank’s process was slower.
B)Burbank’s process did not affect the genetic makeup of the potato.***
C)Burbank’s process did not place the potato plant under any type of selection.
D)Burbank’s process did not involve environmental pressures to shape the outcome.
4)Very few fossils of jellyfish or their close relatives have been found. This makes it hard to trace the evolutionary history of jellyfish using the fossil record. What explains this? (1 point)
A)Jellyfish fossils are buried deep under the ocean floor, not in land areas where scientists hunt for fossils.
B)Jellyfish have soft bodies that decay completely before fossilization can occur.***
C)Jellyfish are a relatively new species in the history of living things on Earth and do not have ancient ancestors.
D)Jellyfish fossils are likely more fragile than other types of fossils and so they degrade before they can be examined.
5)Suppose some natural disaster occurs and a species of finch is forced to relocate from its original island where it dined on cactus flowers to an adjacent island with many fewer cacti but an overabundance of orchids. What would be the immediate consequences to the species in the first month of the change? (1 point)
A)The species would change its eating habits to feed on orchids.
B)All of the members of the species would make do with the existing cacti on their new island.
C)The entire species would go extinct.
D)Most of the members of the species would die but some would survive.***
6)What evidence was found from soft tissue samples of a remarkably well-preserved Tyrannosaurus rex that provided molecular evidence linking T. rex to a chicken? (1 point)
A)Antibodies that react in a specific way with chicken proteins reacted in the same way with T. rex proteins.***
B)Oxygen was found to be essential to T. rex’s survival in the same way that it is essential to a chicken’s survival.
C)T. rex cell structure was found to be similar to the cell structure of chickens.
D)T. rex cells were found to use glucose as a source of energy just like a chicken’s cells use glucose.
1.A
2.D
3.A
4.D
5.D
6.B
7.D
8.D
9.A
10.D
11.B
12.C
13.C
14.B
15. common ancestor
16. punctuated equilibrium
17. adaptation
18. overproduction
19. body
20. artificial selection
21. inheritance
22. homologues structures
23. older
trust me i got a hundred!!!!! CA
is boo right?
these are just a few of my homework questions, i have 50 more i just need some help with these ones. i would be so happy for any help that you can give me!!!
1.C
2. D
1) To determine which of the options were used as evidence to support the idea of evolution, you can analyze the historical context when the concept of evolution was first proposed. Charles Darwin, who is often credited with proposing the theory of evolution, based his ideas on extensive observations of nature, particularly during his voyage on the HMS Beagle. He observed various organisms and their adaptations to different environments, which gave him insights into the process of natural selection. Therefore, the correct answer is A) observations of nature.
2) To understand how Darwin and Lamarck differed in their thinking about change in species, you need to examine their respective theories of evolution. Charles Darwin proposed the theory of natural selection, which suggests that species change over time through a gradual process of adaptation to their environment. He thought that change could occur in individual organisms through a process called variation, and those individuals with favorable traits would be more likely to survive and reproduce, passing their traits to the next generation. In contrast, Jean-Baptiste Lamarck proposed the theory of inheritance of acquired characteristics, which suggested that changes acquired by an organism during its lifetime could be passed on to its offspring. However, Lamarck's theory has been largely discredited by modern genetics and evolutionary biology. Therefore, the correct answer is B) Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.
3) To compare Luther Burbank's process of developing a strain of potato to the process of natural selection, you need to consider the key principles of natural selection. Natural selection involves the differential survival and reproduction of individuals with advantageous traits, leading to changes in a population over time. Luther Burbank's process, however, does not involve genetic changes in the potato plant. Instead, it focuses on selectively breeding plants with desirable traits, such as increased tuber production and resistance to potato blight. While his process may result in improved potato plants, it does not involve the genetic variation and selection pressures associated with natural selection. Therefore, the correct answer is B) Burbank's process did not affect the genetic makeup of the potato.
4) To understand why few fossils of jellyfish or their close relatives have been found, you can consider the unique characteristics of jellyfish and the fossilization process. Jellyfish have soft bodies, lacking hard structures such as bones or shells that are more likely to fossilize. Soft-bodied organisms are generally less likely to leave a fossil record because they decay rapidly after death. Therefore, the correct answer is B) Jellyfish have soft bodies that decay completely before fossilization can occur.
5) To determine the immediate consequences to the species of finch forced to relocate to an adjacent island with fewer cacti and an overabundance of orchids, you can analyze the available options. A natural disaster has occurred, and the birds' preferred food source, cactus flowers, is no longer available. In such a scenario, the immediate consequences would likely include a scarcity of food, which could lead to increased competition among the finches. Some members of the species may die due to the lack of suitable food, but others may survive by adjusting their feeding habits to consume available resources like orchids. Therefore, the correct answer is D) Most of the members of the species would die, but some would survive.
6) To identify the evidence found from soft tissue samples of a remarkably well-preserved Tyrannosaurus rex that provided molecular evidence linking T. rex to a chicken, you can analyze the options. Soft tissue samples from the T. rex provided an opportunity to extract molecular information and analyze it. The evidence that linked T. rex to a chicken comes from the discovery that antibodies that react in a specific way with chicken proteins also reacted in the same way with T. rex proteins. This similarity in protein reactivity provides molecular evidence supporting the evolutionary relationship between these two species. Therefore, the correct answer is A) Antibodies that react in a specific way with chicken proteins reacted in the same way with T. rex proteins.