Plant Science Unit 1 Test Review

I am ready for this test

Infiltration rate is influenced by all but which one

Parent material, topography, biology, climate and time are all:

Natural ecosystems are very

Autotrophs are

The biggest source of carbohydrates come from

Why should a little meat be included in the diet?

In agriculture the term horticulture applies to:

The smallest level in an ecosystem is:

Voids between soil solids are called

Which is not a type of chemical weathering

Agricultural ecosystems are:

Which textural class of soil will have the highest water holding capacity?

The largest soil particle is

Plants lose water through

From the year 1900 to 2000 the rural population has

An organic molecule contains

Any plant that grows where it is unwanted is a __________

In a soil profile parent material is found in the _____ horizon

Cultivation of plants reduced the need to:

Which is not a problem facing agriculture?

A __________ is made up of all of the populations of organisms of different species in an area

The hardest factor to manipulate in agriculture is

Which textural class of soil will have the highest CEC

Soil is composed of

A natural ecosystem is:

Cultivating plants has no effect on the ecosystem

In a soil profile the highest amount of organic matter is concentrated in the ______ horizon

Water is a ________ component in an ecosystem.

The change in plant communities over time is known as

A collection of ecosystems with similar soil, climate and biological composition are called:

Vertical zonation is a term applied to vegetation zones defined by

Fungi are ________ components in an ecosystem.

Water is taken into the atmosphere by

This is a well balanced ecosystem?

A specie's unique way of surviving in its environment, is called a

All niches in a natural ecosystem are:

Water is

What is the difference between climate and weather?

Evapo-transpiration dictates to farmers:

Agronomy is the study of