Free Bachelor of Forestry Forest Ecosystem Questions and Answers

Question 1

Which phrase best describes the traits of natural regenerations?
I. Often the simplest and cheapest type of forest management because it requires small investment.
II. It may result un the production of better quality trees
III. It is applicable in degraded areas

Accepted Answer

I and II

Answer

Natural regeneration relies on existing seed sources and natural processes, making it generally less costly and simpler than artificial regeneration (planting), thus requiring small investment. It can also lead to better quality trees that are well-adapted to the local environment. However, it is typically not applicable in severely degraded areas where natural seed sources or conditions for germination are insufficient, requiring human intervention.

Question 2

Sell walls and photoplasm absorb water by the process of imbibition, which makes them softer, swallen, and more elastic.
Utilizing the energy from sunshine, photosynthesis converts carbon dioxide into sugars, water, and byproducts from a hydrogen donor.

Accepted Answer

All statements are true

Answer

Statement 1 is true: Plant cell walls and protoplasm absorb water through imbibition, causing them to swell, soften, and become more elastic, which is crucial for turgor and growth. Statement 2 is also true: Photosynthesis utilizes sunlight energy to convert carbon dioxide into sugars (glucose), with water (or another hydrogen donor) as a reactant, producing oxygen as a byproduct. Both describe fundamental biological processes accurately.

Question 3

Which species does the Philippines NOT have as its native species?

Accepted Answer

Yemane

Answer

Gubas (Endospermum peltatum), Bagras (Eucalyptus deglupta), and Kaatoan bangkal (Anthocephalus cadamba) are all tree species native to the Philippines and commonly found or cultivated there. Yemane (Gmelina arborea), however, is native to India and Southeast Asia. It was introduced to the Philippines for reforestation and timber production, making it an exotic or introduced species, not indigenous.

Question 4

Stunting or reduced growth are symptoms of nutritional deficiencies.
The main causes of severe stunting are potassium and iron deficiency.

Accepted Answer

Statement 1 is true; statement 2 is false

Answer

Statement 1 is true because stunting or reduced growth is a classic symptom of various nutritional deficiencies in plants, as essential nutrients are required for proper development. Statement 2 is false because while potassium and iron are vital, severe stunting is more broadly associated with deficiencies in macronutrients like nitrogen, phosphorus, and potassium, or other micronutrients, rather than primarily potassium and iron deficiency alone.

Question 5

Which of the following describe clayey soil properties?
I. Excellent water-holding capacity
II. Excellent mineral-holding capacity
III. Difficult to work

Accepted Answer

I, II and III

Answer

Clayey soils are composed of very fine particles, which results in small pore spaces and a large surface area, giving them excellent water-holding capacity. This same characteristic also allows them to bind and hold onto mineral nutrients effectively, preventing leaching. However, their fine texture and tendency to become dense and sticky when wet, and hard when dry, make them notoriously difficult to work or till.

B.F. Bachelor of Forestry Practice Test

B.F. Bachelor of Forestry Practice Test

Free Bachelor of Forestry Forest Ecosystem Questions and Answers