2.
What is natural selection?
Correct Answer
A. The mechanism by which individuals with favorable traits survive and reproduce more successfully.
Explanation
Natural selection is the process by which individuals with traits that are advantageous for survival and reproduction are more likely to pass those traits on to the next generation. Over time, these favorable traits become more common in the population, leading to evolutionary changes. Natural selection is driven by environmental pressures that favor certain traits over others, resulting in the adaptation of species to their habitats. This mechanism was a key concept in Charles Darwin's theory of evolution, explaining how species evolve over time through the differential survival and reproduction of individuals with beneficial traits.
3.
A well-supported testable explanation of phenomena that have occurred in the natural world is a ____________________.
Correct Answer
theory
Explanation
A theory is a well-supported and testable explanation that is based on evidence and observations from the natural world. It is a comprehensive framework that helps to explain a wide range of phenomena and has been repeatedly tested and confirmed through experimentation and observation. Theories are essential in scientific research as they provide a foundation for understanding and predicting natural phenomena. They are constantly evolving and subject to revision as new evidence emerges.
4.
Nature provided the variation and humans selected the useful ones is called __________ ___________
Correct Answer
artificial selection
Explanation
The process described in the question, where nature provides the variation and humans select the useful ones, is known as artificial selection. This is a deliberate process where humans intentionally choose certain traits or characteristics in plants or animals through breeding, resulting in desired offspring. It is commonly used in agriculture and animal husbandry to enhance specific traits such as yield, size, or resistance to diseases. Artificial selection is different from natural selection, where the environment selects the fittest individuals based on their advantageous traits.
5.
What book did Darwin published with his ideas on evolution?
Correct Answer
A. On the origin of species
Explanation
"On the Origin of Species" is the correct answer because it is the book that Darwin published with his ideas on evolution. This groundbreaking work, published in 1859, presented Darwin's theory of natural selection and provided evidence for the process of evolution. It revolutionized the scientific understanding of life on Earth and had a profound impact on various fields, including biology, anthropology, and philosophy.
6.
What animals did Darwin observe that contributed to his theory of evolution?
Correct Answer
A. Finches and tortoises
Explanation
Charles Darwin observed finches and tortoises during his visit to the Galápagos Islands. The differences in the beaks of finches and the shells of tortoises across the various islands provided key evidence for his theory of evolution by natural selection. Darwin noticed that the finches' beak shapes were adapted to their specific feeding habits, while the tortoises' shell shapes varied based on the vegetation available on their respective islands. These observations were crucial in helping Darwin formulate his ideas on how species adapt to their environments over time.
7.
Structures that have different mature forms but develop from the same embryonic tissue are called:
Correct Answer
homologous structures
Explanation
Homologous structures refer to anatomical features in different organisms that have a similar structure and origin, indicating a common evolutionary ancestry. These structures may have different mature forms in different organisms, but they develop from the same embryonic tissue. This suggests that these organisms share a common ancestor and have diverged over time, resulting in variations in the mature forms of these structures. Homologous structures provide evidence for evolution and the relatedness of different species.
8.
What did Lyell and Hutton help scientists recognize?
Correct Answer
A. Earth is millions years old and the processes that changed earth in the past are still operating
Explanation
Lyell and Hutton helped scientists recognize that the Earth is millions of years old and that the processes that changed the Earth in the past are still operating. This concept is known as uniformitarianism, which suggests that the same geological processes that occurred in the past, such as erosion and volcanic activity, continue to shape the Earth's surface today. This understanding of Earth's history and ongoing processes has been crucial in the field of geology and has greatly contributed to our knowledge of the Earth's formation and development over time.
9.
What did Lamarck's evolution hypothesis suggest?
Correct Answer
A. Selective use or disuse for a body part change lead to change in that organ when its passed on to the offspring
Explanation
tendency toward perfection, use and disuse, inheritance of acquired traits, organism are adapted to their environment
10.
What is evolution?
Correct Answer
A. Change over time where modern organisms have descended from ancient organism
Explanation
The correct answer is "change over time where modern organisms have descended from ancient organisms". This explanation states that evolution refers to the process of change occurring over time, where modern organisms have descended from ancient organisms. It implies that species have gradually developed and adapted to their environment through inherited characteristics, resulting in the diversity of life forms we observe today.
11.
What is fitness?
Correct Answer
A. The ability to reproduce and survive
Explanation
Fitness refers to the ability of an organism to reproduce and survive. This includes the organism's capacity to pass on its genetic material to the next generation and its ability to adapt to its environment. In the context of evolution, fitness is a measure of how well an organism is adapted to its environment and how successful it is in reproducing and passing on its genes. Organisms with higher fitness are more likely to survive and reproduce, leading to the propagation of their advantageous traits in future generations.
12.
Fitness is a result of
Correct Answer
A. Adaptation
Explanation
Adaptation refers to the process by which organisms adjust to their environment in order to survive and reproduce. It involves the development of traits that enhance an organism's fitness, or its ability to successfully pass on its genes to future generations. Through adaptation, organisms can better exploit available resources, avoid predators, or withstand environmental pressures. Homologies and common descent, on the other hand, are related to the evolutionary history and relationships between species, while variation is the raw material upon which adaptation acts. Therefore, adaptation is the most direct and applicable explanation for fitness.
13.
Differences among individual of a species are referred to as
Correct Answer
A. Natural variation
Explanation
Natural variation refers to the differences among individuals of a species. These differences can be in terms of physical characteristics, genetic makeup, or behavior. Natural variation is a result of genetic mutations, recombination, and environmental factors. It is an essential component of evolution as it provides the raw material for natural selection to act upon. Natural variation allows individuals to have different traits, which can lead to differences in survival and reproduction rates. Therefore, natural variation is the correct term to describe the differences among individuals of a species.
14.
During his travels, darwin made numerous _________ and collected _________ that led him to propose a revolutionary hypothesis about the way _____ changes over time.
Correct Answer
A. Observations, evidence, life
Explanation
During his travels, Darwin made numerous observations and collected evidence that led him to propose a revolutionary hypothesis about the way life changes over time. This explanation fits with Darwin's role as a naturalist and his famous work on evolution through natural selection. By observing various species and collecting evidence in the form of specimens, Darwin was able to develop his theory on the evolution of life.
15.
These changes over time increase the _________ of a species in its environment
Correct Answer
fitness
Explanation
As the question states that "these changes over time increase the fitness of a species in its environment," it implies that the changes occurring in the species over time lead to an improvement in its ability to survive and reproduce in its environment. This increased fitness enables the species to adapt better to its surroundings, compete with other organisms, and pass on its advantageous traits to future generations.
16.
What is speciation?
Correct Answer
A. The process by which new species arise from existing species.
Explanation
Speciation is the evolutionary process by which new species arise from existing species. This process can occur through mechanisms such as geographic isolation, where populations are separated and evolve independently, or through reproductive isolation, where genetic differences prevent interbreeding between populations. Over time, these isolated populations accumulate enough genetic changes to become distinct species, unable to interbreed successfully. Speciation is a fundamental aspect of evolutionary biology and helps explain the diversity of life on Earth. It involves the development of reproductive barriers and can be driven by various factors such as natural selection, genetic drift, and environmental changes.
17.
What are the three ideas of evolution?
Correct Answer
A. Struggle for existence, survival of the fittest, and descent with modification
Explanation
The correct answer is "struggle for existence, survival of the fittest, and descent with modification." These three ideas of evolution are key concepts in Charles Darwin's theory of natural selection. The struggle for existence refers to the competition among individuals for limited resources, which drives the process of natural selection. Survival of the fittest means that individuals with advantageous traits are more likely to survive and reproduce, passing on their traits to future generations. Descent with modification refers to the idea that species evolve over time through gradual changes in their traits and characteristics.
18.
What was the name of the name of Darwin's voyage called?
Correct Answer
H.M.S. Beagle, HMS Beagle
Explanation
Darwin's voyage was famously known as the H.M.S. Beagle. This was the name of the ship that Darwin sailed on during his expedition, which lasted from 1831 to 1836. The voyage took Darwin to various locations, including the Galapagos Islands, where he made important observations and collected evidence that would later contribute to his theory of evolution by natural selection. The H.M.S. Beagle played a crucial role in Darwin's scientific journey and is often associated with his groundbreaking work.
19.
Who is another scientist who presented the idea of evolution around the same time as Darwin?
Correct Answer
A. Alfred Wallace
Explanation
Alfred Wallace is another scientist who presented the idea of evolution around the same time as Darwin. He independently developed a theory of evolution through natural selection, which closely resembled Darwin's ideas. Wallace's work on the subject was published jointly with Darwin's in 1858, leading to the recognition of both scientists for their contributions to the theory of evolution.
20.
Over time natural selection results in _____ in the ________ characteristics of a population
Correct Answer
changes, inherited
Explanation
Over time, natural selection leads to changes in the inherited characteristics of a population. This means that certain traits that are advantageous for survival and reproduction become more common in the population, while traits that are disadvantageous become less common. These changes occur because individuals with advantageous traits are more likely to survive and pass on their genes to the next generation, while individuals with disadvantageous traits are less likely to reproduce. As a result, the population as a whole becomes better adapted to its environment over time.
21.
What islands did Darwin visit that had the most changes?
Correct Answer
Galapagos islands
Explanation
Darwin visited the Galapagos Islands, which had the most changes. The Galapagos Islands are known for their unique and diverse ecosystems, which played a crucial role in Darwin's development of the theory of evolution. The isolated nature of the islands allowed for the development of distinct species and variations, leading to significant changes that caught Darwin's attention and contributed to his understanding of natural selection.
22.
Separate answers with a comms
Malthus reasoned that if the __________ p___________ continued to ________ unchecked, sooner or later there would be ____________ living __________ and __________ for everyone.
Correct Answer
human, population, grow, insufficient, space, food
Explanation
Malthus reasoned that if the human population continued to grow unchecked, sooner or later there would be insufficient space and food for everyone. Malthus believed that population growth would outpace the ability to produce enough resources, leading to a scarcity of space and food for the growing population. This theory is known as Malthusianism and suggests that population growth should be controlled to avoid resource depletion and overcrowding.
23.
Which three observations about animals in South America on the Galápagos Islands did Darwin make? (Select all that apply.)
Correct Answer(s)
A. Variation in Finches
A. Tortoise Shell Shapes
A. Marine Iguanas
Explanation
Darwin's observations on the Galápagos Islands included the variation in finches' beak shapes, which suggested adaptation to different food sources; the distinct shell shapes of giant tortoises, which indicated adaptation to different habitats; and the unique marine iguanas, which had adapted to a marine lifestyle. These observations supported the idea of natural selection and adaptation driving evolutionary changes.
24.
What are fossils?