Podcast
Questions and Answers
The nervous system is the ________ messaging system of the body that reacts to immediate stimuli; the endocrine system is the ________ messaging system that secretes hormones that travel to target cells and tissues.
The nervous system is the ________ messaging system of the body that reacts to immediate stimuli; the endocrine system is the ________ messaging system that secretes hormones that travel to target cells and tissues.
- short; long
- fast; slow (correct)
- long; short
- slow; fast
What process is primarily illustrated by the image?
What process is primarily illustrated by the image?
- Hormones are released from endocrine glands.
- The pituitary gland coordinates the release of hormones.
- Nerve impulses travel and neurotransmitters deliver messages. (correct)
- The blood maintains homeostasis.
Which subdivision of the Peripheral Nervous System (PNS) is responsible for involuntary control of body movements?
Which subdivision of the Peripheral Nervous System (PNS) is responsible for involuntary control of body movements?
- Sensory (afferent) division
- Motor (efferent) division
- Autonomic Nervous System (ANS) (correct)
- Somatic Nervous System (PNS)
What critical role does the scrotum play in the male reproductive system?
What critical role does the scrotum play in the male reproductive system?
Which of the following is NOT a primary function of the female reproductive system?
Which of the following is NOT a primary function of the female reproductive system?
Which gland, located behind the sternum and between the lungs, is active until puberty and stimulates the development of disease-fighting T cells?
Which gland, located behind the sternum and between the lungs, is active until puberty and stimulates the development of disease-fighting T cells?
Which condition indicates that a woman is in the secretory/luteal phase of her menstrual cycle?
Which condition indicates that a woman is in the secretory/luteal phase of her menstrual cycle?
Which statement accurately describes menstruation?
Which statement accurately describes menstruation?
A 48-year-old woman stops having menstrual periods and suspects she might be pregnant. What is another likely explanation for this?
A 48-year-old woman stops having menstrual periods and suspects she might be pregnant. What is another likely explanation for this?
Which hormone primarily stimulates the development of an egg follicle in the ovary?
Which hormone primarily stimulates the development of an egg follicle in the ovary?
Which of the following demonstrates the correct complementary base pairing in DNA?
Which of the following demonstrates the correct complementary base pairing in DNA?
During DNA replication, a DNA strand with the sequence CTAGGT will produce a complementary strand with which of the following sequences?
During DNA replication, a DNA strand with the sequence CTAGGT will produce a complementary strand with which of the following sequences?
Which of the following mRNA sequences corresponds to the DNA segment TATCAGGAT?
Which of the following mRNA sequences corresponds to the DNA segment TATCAGGAT?
What is the correct sequence of events in the central dogma of molecular biology?
What is the correct sequence of events in the central dogma of molecular biology?
Which type of RNA carries genetic information from the DNA in the nucleus to the ribosomes for protein synthesis?
Which type of RNA carries genetic information from the DNA in the nucleus to the ribosomes for protein synthesis?
Each nucleotide triplet in mRNA that codes for a specific amino acid is called a(n) ________.
Each nucleotide triplet in mRNA that codes for a specific amino acid is called a(n) ________.
Structures with similar origins adapted for different purposes are known as:
Structures with similar origins adapted for different purposes are known as:
How do convergent and divergent evolution differ?
How do convergent and divergent evolution differ?
What method is predominantly used to determine the actual age of fossils?
What method is predominantly used to determine the actual age of fossils?
An image showing the bone structure of a whale's flipper, a bat's wing, and a human arm, is most likely illustrating what evolutionary concept?
An image showing the bone structure of a whale's flipper, a bat's wing, and a human arm, is most likely illustrating what evolutionary concept?
Darwin observed finches on the Galapagos Islands with variations in their beaks. What primary advantage did these beak variations provide?
Darwin observed finches on the Galapagos Islands with variations in their beaks. What primary advantage did these beak variations provide?
Which statement reflects Charles Darwin's concept of genetic variation within a population?
Which statement reflects Charles Darwin's concept of genetic variation within a population?
Lamarck's "Inheritance of Acquired Characteristics" is to Darwin's concept of:
Lamarck's "Inheritance of Acquired Characteristics" is to Darwin's concept of:
What term defines the variety of life forms within a particular ecosystem?
What term defines the variety of life forms within a particular ecosystem?
The monkey-eating eagle (Pithecophaga jeffreyi) is considered an endangered species. What does this indicate about the birth rate (BR) and death rate (DR) of the monkey-eating eagle population?
The monkey-eating eagle (Pithecophaga jeffreyi) is considered an endangered species. What does this indicate about the birth rate (BR) and death rate (DR) of the monkey-eating eagle population?
Which factor best explains the rapid growth of the human population over the last 1000 years?
Which factor best explains the rapid growth of the human population over the last 1000 years?
An ecologist is researching the impact of high population density on a local habitat. What is the primary characteristic of a population with extremely high density?
An ecologist is researching the impact of high population density on a local habitat. What is the primary characteristic of a population with extremely high density?
A population biologist is studying a graph showing population size over time. The graph shows an initial rapid increase in population size, resembling a 'J' shape. What does this J-shaped curve typically indicate?
A population biologist is studying a graph showing population size over time. The graph shows an initial rapid increase in population size, resembling a 'J' shape. What does this J-shaped curve typically indicate?
A biologist is studying a population that has reached its carrying capacity. She observes that the population size slows down and eventually stabilizes over time. Which population growth model best illustrates this pattern?
A biologist is studying a population that has reached its carrying capacity. She observes that the population size slows down and eventually stabilizes over time. Which population growth model best illustrates this pattern?
What is a key difference between exponential and logistic population growth models?
What is a key difference between exponential and logistic population growth models?
Which of the following factors is a density-dependent limiting factor on population growth?
Which of the following factors is a density-dependent limiting factor on population growth?
A population of deer is introduced to an island with abundant resources and no predators. Initially, the population grows rapidly. However, after several years, the growth rate slows down and the population size stabilizes. What is the most likely explanation for this change in growth pattern?
A population of deer is introduced to an island with abundant resources and no predators. Initially, the population grows rapidly. However, after several years, the growth rate slows down and the population size stabilizes. What is the most likely explanation for this change in growth pattern?
Flashcards
Nervous vs Endocrine System
Nervous vs Endocrine System
The nervous system is the fast messaging system; the endocrine system is the slow messaging system that uses hormones.
Autonomic Nervous System
Autonomic Nervous System
A subdivision of the Peripheral Nervous System that controls involuntary body movements.
Function of Scrotum
Function of Scrotum
The scrotum maintains thermoregulation for the testis, aiding sperm development.
Functions of Female Reproductive System
Functions of Female Reproductive System
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Thymus Gland
Thymus Gland
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Menstrual Cycle Phases
Menstrual Cycle Phases
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Menstruation Facts
Menstruation Facts
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Hormone Production Stages
Hormone Production Stages
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Menstruation phases
Menstruation phases
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Menstrual duration
Menstrual duration
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Hormone stimulating egg development
Hormone stimulating egg development
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Complementary base pairing in DNA
Complementary base pairing in DNA
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DNA replication complementary strand
DNA replication complementary strand
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Central dogma sequence
Central dogma sequence
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Codon definition
Codon definition
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Down's Syndrome characteristic
Down's Syndrome characteristic
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Homologous structures
Homologous structures
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Convergent evolution
Convergent evolution
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Divergent evolution
Divergent evolution
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Carbon dating
Carbon dating
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Natural selection
Natural selection
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Biodiversity
Biodiversity
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Extinction risk
Extinction risk
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Vestigial structures
Vestigial structures
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Endangered Species
Endangered Species
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Human Population Growth
Human Population Growth
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High Population Density
High Population Density
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Population Growth Graph
Population Growth Graph
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Carrying Capacity
Carrying Capacity
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Logistic Growth Model
Logistic Growth Model
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Exponential Growth Model
Exponential Growth Model
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Dismal Effect Theory
Dismal Effect Theory
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Study Notes
Nervous and Endocrine Systems
- The nervous system responds to immediate stimuli, while the endocrine system releases hormones that travel to target cells.
- Nerve impulses travel quickly; hormones travel slower.
Peripheral Nervous System
- The autonomic nervous system controls involuntary bodily functions.
Male Reproductive System
- The scrotum regulates testis temperature for sperm development.
Female Reproductive System
- The female reproductive system maintains the reproductive cycle via hormones, produces eggs, and nurtures embryos.
Endocrine Glands
- The thymus gland, located between the lungs, is active until puberty, and is larger in infants.
- The pineal gland is behind the sternum and between the lungs.
Menstrual Cycle
- The secretory/luteinizing phase is characterized by falling estrogen and progesterone levels, and regression of the uterine lining.
- Estrogen and LH levels rise during the follicular phase, preparing the endometrium for potential implantation.
Menopause
- Menopause is a natural biological event marking the cessation of menstrual cycles, occurring during a woman's late 40s, 50s.
DNA Structure and Replication
- Complementary base pairing: Adenine (A) with Thymine (T), Cytosine (C) with Guanine (G).
- DNA replication produces a strand identical to the original.
Protein Synthesis
- The central dogma involves DNA to RNA to protein.
- mRNA carries genetic information from DNA in the nucleus to the ribosomes (protein manufacturing sites).
Evolution
- Convergent evolution describes similar traits in different lineages due to similar environmental pressures.
- Divergent evolution results in distinct traits among lineages as they adapt to distinct environmental pressures.
Fossils and Dating
- Relative dating provides a sequence of the order of fossils.
- Sedimentary dating estimates fossil ages based on rock layers.
Population Growth
- A population reaches its carrying capacity when the birth rate equals the death rate.
- The logistic growth model describes this pattern where population growth slows as a population nears its carrying capacity.
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Description
Overview of the nervous and endocrine systems, focusing on their roles and differences. Includes details on the peripheral nervous system, male and female reproductive systems, endocrine glands, and the menstrual cycle.
