Question 1

Imagine that you and Charles Darwin are looking at a newborn litter of kittens,and the kittens are all a bit different from one another.As you observe the kittens,you ask Mr.Darwin which of the kittens will be most "fit" in terms of natural selection.What would Mr.Darwin be most likely to say in response to your question

Accepted Answer

Darwin's concept of fitness in terms of natural selection refers to an organism's ability to survive to reproductive age, find a mate, and produce offspring. The measure of an organism's fitness is how well it can pass its genes on to the next generation. Therefore, the kitten that has the most kittens of its own would be considered the most "fit" according to Darwin's principles of natural selection.

Question 2

Which statement does NOT accurately describe Charles Darwin and the theory of evolution

Accepted Answer

Charles Darwin was not the first person to describe the process of evolution. The concept of evolution had been proposed by earlier scientists such as Jean-Baptiste Lamarck and Alfred Russel Wallace. However, Darwin's theory of natural selection is considered the most influential and widely accepted explanation for the process of evolution.

Question 3

Which comparison group has a significant similarity with adopted children,based on research on adopted children and intelligence

Accepted Answer

The answer of Which comparison group has a significant similarity...

Question 4

If you are working on the Human Genome Project,which type of traits are you most likely to be able to map

Accepted Answer

Dichotomous traits that are either present or absent are often easier to map because they are typically influenced by a single gene or a small number of genes, making it simpler to identify the genetic basis.

Question 5

What makes a behaviour adaptive,according to evolutionary theory

Accepted Answer

According to evolutionary theory, a behavior is adaptive if it aids the survival or reproduction of an organism and its offspring. This means that the behavior increases the chances of the organism passing on its genes to the next generation, ensuring the continuation of the species. Other choices do not necessarily describe the criteria for adaptive behavior.

Question 6

Which feature do all the studies highlighting the possible importance of early experience in animals have in common

Accepted Answer

All the studies highlighting the possible importance of early experience in animals have in common the use of extreme conditions to make their comparisons. These extreme conditions could include sensory deprivation, social isolation, or manipulations of early experience in a way that is not reflective of typical developmental circumstances. This approach allows researchers to identify the potential impact of early experiences on brain development and behavior in a more controlled manner.

Question 7

In your text,we saw that schizophrenia may be a function of abnormalities in neurotransmitter activity,structural defects in the brain,and genetic vulnerability.Which unifying theme of your text do these findings support

Accepted Answer

The findings that schizophrenia may be caused by abnormalities in neurotransmitter activity, structural defects in the brain, and genetic vulnerability suggest that multiple causes are involved in shaping behavior, supporting the unifying theme that behavior is determined by multiple causes.

Question 8

Which statement best reflects the roles of heredity and environment in shaping our behaviour

Accepted Answer

Heredity influences our physiology, which interacts with our environment to shape our behavior. This suggests that both heredity and environment play a role in shaping behavior, but heredity's impact is indirect.

Answer: B 
 This statement is too broad and oversimplifies the complexity of the nature-vs-nurture debate. It is not accurate to say that heredity only affects physical behavior and that environment only affects psychological behavior.

Answer: C 
 This statement is also too extreme and not supported by current research. While genes do play a role in behavior, environmental factors can modulate gene expression and affect behavior.

Answer: D 
 This statement is also not supported by current research. Genetic factors do contribute to behavior, but it is also influenced by various environmental factors.

Question 9

Kim is good at reading maps and enjoys listening to music.What would some researchers suggest about Kim,according to the Personal Application,Evaluating the Concept of "Two Minds in One"

Accepted Answer

Researchers who suggest the concept of "two minds in one" often associate someone who is good at reading maps (spatial ability) and enjoys listening to music (creativity) with being "right-brained." This means that the individual may have a dominant right hemisphere in their brain, which is associated with creativity, intuition, and holistic thinking.

Question 10

What can we conclude about the heritability of intelligence,based on adoption studies

Accepted Answer

Adoption studies have consistently shown that both genetics and environmental factors play a role in determining intelligence. Children who are adopted into families with higher socioeconomic status tend to have higher intelligence scores, suggesting the importance of environmental factors. However, studies also indicate that genetic factors are important, as children tend to have higher intelligence scores if their biological parents have higher scores than their adoptive parents. These findings suggest that intelligence is a complex trait influenced by both genetic and environmental factors.

Question 11

What do we know about the heritability of schizophrenia

Accepted Answer

There is strong evidence to suggest that schizophrenia has a genetic component, but it is not caused by a single gene. Rather, it is likely the result of multiple genes interacting with environmental factors. This suggests that schizophrenia is the result of an inherited vulnerability that interacts with experience.

Question 12

Why is it more difficult to study the evolution of behaviour compared to studying the evolution of physical traits

Accepted Answer

Behaviours may occur infrequently and may not last very long, making them difficult to observe and study over time. This is in contrast to physical traits that can be easily observed and measured.

Question 13

In the Personal Application,Evaluating the Concept of "Two Minds in One," what was the conclusion regarding left-brain and right-brain thinking

Accepted Answer

The conclusion of the Personal Application evaluating the concept of "Two Minds in One" was that the link between hemispheric lateralization (left-brain and right-brain thinking) and ability is speculative and unsupported. Therefore, option D is the correct answer. The article suggests that there is no scientific evidence to support the idea that people have a dominant side of the brain and that different kinds of thinking are linked to different sides of the brain. Instead, research suggests that both hemispheres of the brain are always working together to handle most mental tasks.

Question 14

Much of what we know about left brain/right brain differences would not be known without systematic research and analysis.The current interest in the right brain/left brain phenomenon highlights the importance of approaching topics such as this from which point of view

Accepted Answer

Systematic research and analysis are necessary to understand left brain/right brain differences because it requires empirical evidence. Conjecture, anecdotal evidence, and subjective perceptions alone would not provide reliable information.

Question 15

What do we call the process by which genes that lead to a survival or reproductive advantage become more frequent in the next generation

Accepted Answer

This is the definition of natural selection, where certain genes are favored in a population due to their ability to aid in survival and reproduction. Over time, these genes become more prevalent in the population.

Question 16

If our planet were a place where each individual has the opportunity to acquire all necessary resources,and each individual produces exactly one offspring in his or her lifetime,what impact would this have on the process of evolution by natural selection

Accepted Answer

Evolution by natural selection occurs when certain traits provide an advantage for survival and reproduction, leading to those traits being passed on more frequently. However, if every individual has equal access to resources and produces only one offspring, there would be no opportunity for certain traits to provide an advantage and be selected for. Therefore, evolution by natural selection would not occur.

Question 17

Humans' taste preferences for fatty substances would have conferred a survival advantage for our ancestors,but in our modern environment,where we have an overabundance of food,that preference can end up causing obesity and illness.What would an evolutionary psychologist say about this trend

Accepted Answer

An evolutionary psychologist would likely view the preference for fatty substances as an adaptation that conferred a survival advantage for our ancestors, as it provided a reliable source of energy and helped them survive food scarcity. However, in our modern environment where food is abundant, this preference becomes a liability and can lead to obesity and illness. This is an example of an adaptation that has become maladaptive in our current environment.

Question 18

What is the key factor in evolutionary change,according to Darwin's theory of evolution

Accepted Answer

According to Darwin's theory of evolution, the key factor in evolutionary change is variations in reproductive success. This means that individuals with traits that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. Over time, these advantageous traits will become more common in the population, leading to evolutionary change. The interaction of heredity and environment and genetic transmission of learned behavior may also play a role in evolution, but the most important factor is variations in reproductive success. The relative success of aggressive predators is not necessarily a driver of evolutionary change, as it depends on the specific environmental context.

Question 19

Dean is conducting a study in which he exposes rats to different amounts of noise to cause different amounts of stress.He then evaluates whether the offspring of those rats have different reactions to stress.What sort of study is Dean conducting

Accepted Answer

Dean's study involves exposing rats to different environmental factors (noise) to produce different levels of stress, which may affect how certain genes are expressed (epigenetics). Dean is then examining whether these epigenetic changes affect the behavior and stress response of offspring. Therefore, the best choice would be A) epigenetic study.

Question 20

What do we call an inherited characteristic that solves a survival problem

Accepted Answer

An adaptation is a characteristic that has evolved over time and provides an advantage for survival in a particular environment. It is not necessarily dominant or due to a genetic mutation, although those factors may contribute to the development of the adaptation. Fitness refers to the ability of an organism to survive and reproduce in a specific environment, but does not specifically refer to an inherited characteristic.

Quiz 3: A: The Biological Bases of Behaviour