The method, place and time of fruit/seed collection affect the growth and spread of microfungi. During rainy season when relative humidity is high, seeds have also low moisture content.

is concerned with the way where different kinds of plants are distributed throughout the world.

Which characteristics "pink disease" attacking mangium?

I. It is caused by Corticum Salmonicolor.

II. It sometimes result to death of mangium.

Which of the following shapes of the leaves that tapes downward?

I. Oblanceolate

II. Cuneate

III. Obovate

A nutrient that promotes respiration and formation of the chlorophyll?

Which of the following are areas to be considered for enrichment planting?

I. Over logged areas

II. Secondary forest

III. Areas naturally poor in desirable species

It refers to the response of plants to relative lengths of light and dark period

relates to both the availability of nutrients which enhances plant growth and the toxic elements that suppresses growth.

A components of the vascular tissue that functions primarily to conduct water and minerals.

Genetics variation can be estimated directly from genotypes. Ecotype is a product arising as a result of the genotypical response of a population to a definite habitat.

The conversion of living things into inorganic material through geological processes.

Which of the following is most fertile if they are not waterlogged?

Pukinggang-baging is an introduced climbing vine and is found throughout the Philippines. It is now pantropic in distribution which means:

Site preparation by slashing can be best employed under that what conditions?

I. Where the sites are stony or rocky

II. Natural herb and brush cover is very light

III. Where extremely fast growing species are planted

The hypocotyl is a part of the embryo that develops into a

It refers to the study of the classification of plants as undertaken by ethnic population.

These are the wildlife found only in the country or in a particular area of region in the country. They may have become resident of the area through the introduction of man.

All of the animals found in a given area.

The stalk of leaf is called.

What is DENR Administration Order No. 25?

The following are the factors to be considered in establishing seed production area.

I. Prioritization of species

II. Appropriate seed growing

III. Legal consideration

Soluble salts moved up during dry periods are carried downward during heavy rains. When the soil dries, the soil solutions becomes concentrated.

Which of the following can control erosion.

I. Construction of checkdams

II. Terracing

III. Revegetation of the area

Marine ecosystem ____ refers to shoreline while ____ refers to an ocean.

Mycorrhiza comprises the mycelia of ___ which live in mutualistic association with the living roots of plants.

Auxin is a growth regular that promotes ___ in plants.

It is the transition zone where freshwater meets sea water.

Energy, as heat from the sun causes water to rise up as vapor from water bodies and form vegetation. This water vapor condenses to form clouds which eventually releases rain. Rainwater not taken up by vegetation returns to water bodies. This phenomenon is known as ___.

The functional unit of heredity is known as:

Tropical forest soils are vulnerable to rapid degradation and erosion after logging. Unsustainable use in tropical forest results in the loss of the animal species.

A type of forest which can be found in Central Cordillera, Benguet and Mountain province usually at 1000-1500 meters above sea level.

Good mother trees are sources of high quality planting materials be it seed or vegetative materials which is not a characteristics of a good mother tree?

What order of insects have forewings that serve as covers for the hindwings?

A small buffalo found only in Mindoro.

CITES is a treaty regulating international trade of wildlife. What does CITES means?

In freshwater ___ are floating microscopic organisms while ____ are swimming organisms.

have eyes which when separated are never greater than the diameter of the own eye.

Which of the following is/are functions of lime in the soil?

I. It increases soil pH

II. It neutralizes soil activity

It refers to the cumulative change in the characteristics of population of organisms over succeeding generations, resulting in species totally different from ancient ancestors.

In the process of photosynthesis, ____ molecules of carbon dioxide and ___ molecules of water react in the presence of light and chloroplast to form 1 molecule of carbohydrates and 6 molecules of oxtgen.

This species has smooth bark with large horizontal grooves especially near the base.

Which is a characteristics of die-back?

Mollucan sau was found to have 42, 000 seeds per kilo. If 85% of that are fertile, how many seeds per kilo are sterile?

Most soils are called mineral soils because more than ____ percent of their soil particles are minerals.

The inner bark of Ipil ( Instia bejuga ) is light brown and motted with brown specks. The leaves are alternate and the flowers are borne in panicles.

That part of the embryo giving rise to the primary root of the plant is known as:

is meant by determining the site species match or site species mix.

A ripened ovule.

It is the topmost point of the Sulu-Sulawesi marine triangle and reported to have more coral species in the entire Caribbean sea if put together