GRADE 10 SCIENCE 3RD QUARTER

In the process of inheritance, where are genes located that determine specific traits in an organism?

• Ribosomes

• Nucleus

• Mitochondria

• Endoplasmic Reticulum

What is the primary mechanism responsible for generating genetic variation during the process of meiosis?

• Crossing over

• DNA replication

• Transcription

• Translation

Which ecological concept emphasizes the interconnectedness and interdependence of different species in an ecosystem?

• Trophic levels

• Food chains

• Biotic interactions

• Abiotic factors

What term describes the maximum number of individuals of a particular species that an ecosystem can support without degrading its overall quality?

• Carrying capacity

• Ecological niche

• Habitat limit

• Population threshold

What is the primary source of energy for most ecosystems on Earth?

• Wind

• Solar radiation

• Geothermal heat

• Fossil fuels

Which process contributes to the increase in genetic diversity within a population over time?

• Genetic drift

• Gene flow

• Bottleneck effect

• Founder effect

What is the primary purpose of the endocrine system in the coordination of reproductive functions?

• Production of gametes

• Regulation of hormone levels

• Fertilization process

• Maturation of reproductive organs

What is the primary function of the nervous system in coordinating with the reproductive system?

• Hormone production

• Transmission of nerve impulses

• Muscle contraction

• Blood circulation

What is the term for the process by which an organism passes on its genetic information to its offspring?

• Natural selection

• Inheritance

• Evolution

• Speciation

In the context of ecosystems, what is the role of decomposers in the flow of energy and matter?

• Primary producers

• Energy consumers

• Nutrient recyclers

• Carbon emitters