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Questions and Answers
Considering the seasonal diet of a bear, which consists of small fish in spring and winter, and is 50% fruit in summer and autumn, how would you classify its dietary habit?
Considering the seasonal diet of a bear, which consists of small fish in spring and winter, and is 50% fruit in summer and autumn, how would you classify its dietary habit?
- Zoophagous
- Omnivorous (correct)
- Insectivorous
- Carnivorous
- Herbivorous
Which components correctly describe an RNA nucleotide?
Which components correctly describe an RNA nucleotide?
- Phosphate group, ribose sugar, and nitrogenous base (A, C, G or U) (correct)
- Phosphate group, deoxyribose sugar, and nitrogenous base (A, C, G or T)
- Phosphate group, deoxyribose sugar, and nitrogenous base (A, C, G or U)
- Phosphate group, deoxyribose sugar, and nitrogenous base (A, T, G or U)
- Phosphate group, deoxyribose sugar, and nitrogenous base (T, C, G or U)
After fertilization in a flowering plant, which part of the flower develops into the fruit?
After fertilization in a flowering plant, which part of the flower develops into the fruit?
- Stamens
- Ova
- Sepals
- Ovary (correct)
- Petals
A technician observes dividing cells and notices the chromosomes aligned in the middle of the cell. Which phase of cell division is the technician observing?
A technician observes dividing cells and notices the chromosomes aligned in the middle of the cell. Which phase of cell division is the technician observing?
Two experiments were conducted on mice to determine the role of the thyroid gland. Mouse 1 had its thyroid removed and showed no growth. Mouse 2 had its thyroid removed then grafted back in a different location, resulting in normal growth. What do these results suggest about the thyroid gland?
Two experiments were conducted on mice to determine the role of the thyroid gland. Mouse 1 had its thyroid removed and showed no growth. Mouse 2 had its thyroid removed then grafted back in a different location, resulting in normal growth. What do these results suggest about the thyroid gland?
In green beans, the tall allele (T) is dominant over the dwarf allele (t). If half of the offspring are tall and half are dwarf, what are the genotypes of the parents?
In green beans, the tall allele (T) is dominant over the dwarf allele (t). If half of the offspring are tall and half are dwarf, what are the genotypes of the parents?
A bird's germ cell has 80 chromosomes. After meiosis I, how many chromosomes are in each daughter cell, and how many chromatids make up each chromosome?
A bird's germ cell has 80 chromosomes. After meiosis I, how many chromosomes are in each daughter cell, and how many chromatids make up each chromosome?
Which correctly describes the relationship between a bird's wing and a bee's wing, and between a monkey's arm and a whale's flipper?
Which correctly describes the relationship between a bird's wing and a bee's wing, and between a monkey's arm and a whale's flipper?
During intense exercise in a poorly ventilated gym, an athlete's body struggles to supply enough oxygen. What cellular mechanism is most likely to occur in the athlete's cells?
During intense exercise in a poorly ventilated gym, an athlete's body struggles to supply enough oxygen. What cellular mechanism is most likely to occur in the athlete's cells?
When humans experience fear or stress, their breathing rate increases. Which part of the brain primarily controls this response?
When humans experience fear or stress, their breathing rate increases. Which part of the brain primarily controls this response?
Flashcards
Omnivore
Omnivore
An organism that consumes both plants and animals.
RNA nucleotide components
RNA nucleotide components
A nucleotide made of a phosphate group, ribose sugar, and a nitrogenous base (Adenine, Cytosine, Guanine, or Uracil).
Flower part becoming fruit
Flower part becoming fruit
The ovary develops into the fruit after fertilization.
Metaphase
Metaphase
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Thyroid gland function (mice)
Thyroid gland function (mice)
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Parents' Genotype: Half Tall, Half Dwarf
Parents' Genotype: Half Tall, Half Dwarf
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Chromosome number after meiosis I (bird)
Chromosome number after meiosis I (bird)
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Analogous vs. Homologous Structures
Analogous vs. Homologous Structures
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Lactic Acid Fermentation
Lactic Acid Fermentation
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Breathing Rate Control
Breathing Rate Control
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Study Notes
Bear Diet
- Bears eat mostly small fish in spring and winter due to fruit scarcity.
- In summer and autumn, fruit comprises 50% of their diet.
- Bears are omnivorous because their diet varies seasonally between animals and plants.
RNA Nucleotide Composition
- RNA nucleotides consist of a phosphate group, ribose sugar, and a nitrogenous base (A, C, G, or U).
Flower Fertilization
- Following fertilization, the ovary of a flower transforms into fruit.
Cell Division
- Chromosomes aligned in the middle of the cell indicates the metaphase stage of cell division.
Thyroid Gland Function
- The thyroid gland is responsible for the growth of mice.
- Communication between the thyroid and the organism occurs through the blood.
- Removing the thyroid gland stops growth.
- Grafting a vascularized thyroid gland restores normal growth.
Green Bean Genetics
- In green beans, tall (T) is dominant over dwarf (t).
- If half the offspring are tall and the other half are dwarf, the parents' genotype is Tt x tt.
Bird Germ Cell Meiosis
- A bird germ cell has 80 chromosomes.
- After meiosis I, each daughter cell has 40 chromosomes made up of 2 chromatids.
Evolutionary Structures
- Bird wings and bee wings are analogous structures.
- Monkey arms and whale flippers are homologous structures.
Cellular Respiration
- During strenuous exercise with a lack of oxygen, lactic acid fermentation occurs at the cellular level.
Human Breathing Control
- The medulla oblongata primarily controls the increase in breathing rate when humans are afraid and stressed.
Mouse Inheritance
- When a black mouse is crossed with a white mouse and all offspring are black, it demonstrates the law of dominance.
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