2nd Quarterly Assessment in Science 9

Suppose that red flowers are dominant over white flowers. What will be the chances of the offspring having white flowers if the parents are heterozygous red and homozygous white?

• 50%

• 100%

• 75%

• 25%

The father is heterozygous for baldness, while the mother is homozygous dominant, not bald. What are the chances of them having bald daughters?

• 0%

• 25%

• 50%

• 100%

Which of the following describes the importance of species richness in biodiversity?

• It helps determine if the ecosystem is healthy and stable

• It allows people to use more natural resources

• It permits species to reproduce in large populations

Habitat loss is one of the common reasons for the extinctions of most species. Which of the following exhibits habitat loss?

• river restoration

• coral rehabilitation

• tree planting

• urbanization

How can the government raise community awareness regarding protected areas and species in the country?

• increasing the community tax to provide new programs to protect biodiversity

• providing biodiversity seminars and workshops to common members of the community

• organizing a series of reforestation drive in all mountains of the country

• Telling people to highly utilize all resources to avoid poverty

Which is first needed in photosynthesis?

• Oxygen

• sun

• chlorophyll

• Sugar

_________ are flattened sacs that contain chlorophyll.

• stroma

• Thylakoids

• grana

• Chlorophyll

The energy needed for photosynthesis _________

• Heat

• Chemical

• electrical

• Light

The waste by-product of photosynthesis is called _________.

• oxygen

• carbon dioxide

• water

• Sugar

What does DNA stand for?

• Deoxyglucose nuclear acid

• Deoxyribose nuclear acid

• Deoxyglucose nucleic acid

• Deoxyribonucleic acid