Plant Reproduction
Which male reproductive part of a plant produces pollen grains containing male gametes.
a) Anther
b) Filament
c) Stigma
d) Ovary
a) Anther
What is the term for different forms of the same gene?
a) Chromosomes
b) Alleles
c) Phenotypes
d) Gametes
b) Alleles
Animals are primarily classified into which two main groups?
a) Mammals and reptiles
b) Birds and amphibians
c) Vertebrates and invertebrates
d) Arthropods and mollusks
c) Vertebrates and invertebrates
Which of the following best describes a habitat?
a) The specific diet of an animal
b) The natural environment where an organism lives, grows, and reproduces
c) The process of structural adaptation
d) The lifecycle of a plant species
b) The natural environment where an organism lives, grows, and reproduces
In a food chain, what role do plants typically play?
a) Primary consumers
b) Secondary consumers
c) Producers
d) Decomposers
c) Producers
A scientist discovers a plant that produces seeds without fertilization. Which method of reproduction might explain this?
a) Cross-pollination
b) Vegetative propagation
c) Self-pollination
d) Asexual reproduction via spores
d) Asexual reproduction via spores
Which Mendel's Law states that in a pair of alleles, the dominant allele masks the effect of the recessive allele.
Law of Dominance
Compare the reproductive methods of birds and mammals. What makes mammals' reproduction more resource-intensive?
a) Mammals lay eggs, which are more fragile than bird eggs.
b) Mammals give birth to live young and feed them milk.
c) Mammals must find nesting sites for protection.
d) Mammals' offspring do not require parental care.
b) Mammals give birth to live young and feed them milk.
Which habitat type would most likely contain organisms with adaptations for conserving water?
a) Tropical rainforest
b) Grassland
c) Desert
d) Freshwater lake
c) Desert
Which of the following animals would be classified as an omnivore?
a) Lion
b) Deer
c) Bear
d) Vulture
c) Bear
Which situation best illustrates asexual reproduction in plants?
a) A flower attracts bees for pollination.
b) A strawberry plant spreads through runners to produce new plants.
c) Pollen grains are transferred from one flower to another by wind.
d) A seed develops into a fruit after fertilization.
b) A strawberry plant spreads through runners to produce new plants.
Molecule carrying genetic information
a. DNA
b. Chromosomes
c. Genes
DNA
What characteristic distinguishes reptiles from amphibians?
a) Reptiles have dry, scaly skin.
b) Reptiles breathe through gills.
c) Reptiles live only in water.
d) Reptiles are warm-blooded.
a) Reptiles have dry, scaly skin.
Which of the following is NOT a type of terrestrial habitat?
a) Forest
b) Desert
c) Coral reef
d) Grassland
c) Coral reef
In the life cycle of a butterfly, what stage comes immediately after the larva (caterpillar)?
a) Adult
b) Egg
c) Pupa (Chrysalis)
d) Fledgling
c) Pupa (Chrysalis)
Why might plants that disperse seeds via animals have brightly colored fruits?
a) To aid in wind-based seed dispersal.
b) To attract animals that consume and disperse the seeds.
c) To protect the seeds from predators.
d) To enhance seed germination in specific soils.
b) To attract animals that consume and disperse the seeds.
Which of the following best describes the relationship between genotype and phenotype?
a) Genotype is the physical expression of genes, while phenotype is the genetic makeup
b) Genotype and phenotype are always identical
c) Genotype is the genetic makeup, while phenotype is the physical expression of genes
d) Genotype and phenotype are unrelated concepts
Genotype is the genetic makeup, while phenotype is the physical expression of genes
If a new animal species is discovered with characteristics of both vertebrates and invertebrates, how might it be classified?
a) Based on the presence or absence of a backbone.
b) By observing its habitat preferences.
c) By comparing its size with existing species.
d) Based on whether it has an exoskeleton
a) Based on the presence or absence of a backbone.
What is the primary function of decomposers in an ecosystem?
a) To produce energy through photosynthesis
b) To consume other animals
c) To break down dead matter and recycle nutrients
d) To regulate the population of herbivores
c) To break down dead matter and recycle nutrients
Which of the following represents the correct order of a typical food chain?
a) Producer → Primary Consumer → Secondary Consumer → Tertiary Consumer
b) Primary Consumer → Producer → Secondary Consumer → Tertiary Consumer
c) Tertiary Consumer → Secondary Consumer → Primary Consumer → Producer
d) Producer → Tertiary Consumer → Secondary Consumer → Primary Consumer
a) Producer → Primary Consumer → Secondary Consumer → Tertiary Consumer
Compare vegetative propagation and sexual reproduction in plants. Which aspect is unique to vegetative propagation?
a) Requires the fusion of male and female gametes.
b) Ensures genetic variation among offspring.
c) Produces offspring identical to the parent.
d) Relies on the process of pollination for reproduction.
c) Produces offspring identical to the parent.
If two heterozygous tall pea plants (Tt) are crossed, what is the probability of getting a short (tt) offspring?
a) 25%
b) 50%
c) 75%
d) 100%
a) 25%
Amphibians have moist skin for respiration. What might happen if their habitat becomes excessively dry?
a) They would rely solely on their lungs for respiration.
b) Their skin would adapt by becoming scaly.
c) They would migrate to colder regions to conserve moisture.
d) They would stop breathing altogether.
a) They would rely solely on their lungs for respiration.
Structural or behavioral changes that help plants and animals survive in their habitat
Adaptations
In a food chain, what would happen if all the primary consumers were removed?
a) The number of producers would increase dramatically
b) The secondary consumers would start eating producers
c) The tertiary consumers would become herbivores
d) The entire ecosystem would likely collapse
d) The entire ecosystem would likely collapse