Review Activity-Science 9_Q3

Photosynthesis takes place in the membranes of small sacs called _____________.

• thylakoids

• stroma

• cytoplasm

• photons

Water vapor exits and CO₂ enters a leaf through the _____________.

• grana

• cholroplast

• stomata

• mesophyll

The oxygen that is released as O₂ during photosynthesis came from _____________ molecules.

• carbon dioxide

• glucose

• chlorophyll

• water

Where does cellular respiration take place?

• chloroplast

• mitochondria

• nucleus

• vacuole

Which of the following is/are product/s of cellular respiration?

• CO2

• H2O

• O2

• C6H12O6

• ATP

Which of the following is/are NOT reactant/s of photosynthesis?

• CO2

• H2O

• O2

• C6H12O6

• sunlight

The number of species in a specific area within a given time is known as __________.

• species richness

• species evenness

• species diversity

• species domination

The measure of numerically dominated by one species or similar numbers of individuals in particular ecosystem is known as ___________.

• species richness

• species evenness

• species diversity

• species domination

_________________ occurs when a large numbers of species goes extinct over a relatively short period of time.

• extirpation

• extinction

• mass extinction

• mass effect

Non-native plant/animal introduced accidentally or intentionally by humans is called as ______________

• endangered

• extinct

• invasive

• threatened