Viviparity refers to the reproductive strategy in which
- A. Offspring are produced by internal fertilization
- B. Offspring are produced by external fertilization
- C. Offspring develop and are nourished inside the female's body
- D. Offspring develop and are nourished outside the female's body
Which of the following statements is true about the kingdom Fungi?
- A. Fungi obtain nutrients by absorbing organic matter
- B. Fungi are photosynthetic organisms
- C. Fungi are multicellular organisms
- D. Fungi reproduce through the formation of seeds
Which of the following is NOT a method of reproduction in animals?
- A. Asexual reproduction
- B. Budding
- C. Sexual reproduction
- D. Sporulation
Which of the following factors primarily affects the distribution of organisms in an ecosystem
- A. Wind speed
- B. Soil pH
- C. Temperature
- D. Day length
Which of the following blood vessels carries oxygenated blood away from the heart?
- A. Arteries
- B. Venules
- C. Capillaries
- D. Veins
Which of the following represents the correct hierarchical organization of life from the smallest to the largest scale?
- A. Organs, tissues, cells, organisms, populations, communities, ecosystems
- B. Cells, organs, tissues, organisms, populations, communities, ecosystems
- C. Tissues, organs, cells, organisms, populations, communities, ecosystems
- D. Cells, tissues, organs, organisms, populations, communities, ecosystems
Which of the following is an example of conserving resources in an ecosystem
- A. Excessive use of chemical fertilizers in agriculture
- B. Introducing invasive species to an ecosystem
- C. Implementing sustainable fishing practices
- D. Cutting down trees for timber production
Which of the following characteristics is typical of the phylum Arthropoda?
- A. Radial symmetry
- B. Closed circulatory system
- C. Endoskeleton made of bones
- D. Presence of a segmented body
Which organs are part of the alimentary canal in the human digestive system?
- A. Salivary glands, tongue, and pharynx
- B. Large intestine, appendix, and rectum
- C. Stomach, liver, and gallbladder
- D. Oesophagus, pancreas, and small intestine
The alternate form of a gene is
- A. Alternate type
- B. Dominant character
- C. Recessive character
- D. Allele
What are the primary products of photosynthesis?
- A. Carbon dioxide and water
- B. Glucose and oxygen
- C. Glucose and carbon dioxide
- D. Oxygen and water
Which component of blood is responsible for carrying oxygen to the body tissues?
- A. Platelets
- B. White blood cells
- C. Red blood cells
- D. Plasma
What is the primary source of variation in a population?
- A. Gene flow
- B. Mutation
- C. Natural selection
- D. Genetic drift
Which of the following statements about the heart is true?
- A. The heart is responsible for the production of red blood cells
- B. The heart pumps oxygenated blood to the lungs
- C. The heart receives blood from the kidneys and filters waste products
- D. The heart is a muscular organ that contracts to circulate blood throughout the body
What is the term used to describe the maximum number of individuals of a species that an environment can support indefinitely?
- A. Ecological niche
- B. Limiting factor
- C. Carrying capacity
- D. Density-dependent factor
What is the definition of population ecology?
- A. The study of interactions between organisms and their physical environment
- B. The study of evolutionary processes and their effects on populations
- C. The study of interactions between different populations in an ecosystem
- D. The study of the distribution and abundance of individuals within a species
Which of the following traits is not visible in a person with Down syndrome?
- A. Short neck
- B. High muscle tone
- C. Small stature
- D. Slant eyes
Which of the following is an example of a behavioral adaptation for survival in animals?
- A. Sharp teeth
- B. Migration
- C. Wings
- D. Camouflage
Which of the following is a male reproductive organ in humans?
- A. Uterus
- B. Ovary
- C. Testis
- D. Fallopian tube
The theory of evolution can be defined as
- A. The belief that all species were created in their current form
- B. The hypothesis that organisms strive to improve themselves over generations
- C. The idea that species change over time through natural processes
- D. The concept that evolution occurs through a series of sudden and dramatic changes
What is autotrophic nutrition?
- A. Nutrition in which organisms obtain food by breaking down complex organic compounds.
- B. Nutrition in which organisms obtain food from other organisms
- C. Nutrition in which organisms obtain food by consuming both plants and animals
- D. Nutrition in which organisms produce their own food using energy from the sun or inorganic substances