Plant Biology Quiz

A tuber is a swollen end of an underground _____.

• leaf

• rhizome

• midrib

• side shoot or stem

For a plant with the scientific name of Camellia japonica cv. 'Australis,' Australis is the _____ name.

• genus

• species

• family

• cultivar

In _____, a branch from a parent plant is bent to the ground where it is partially covered at one point with soil.

• grafting

• budding

• simple layering

• separation and division

As the outside temperature increases, plant growth normally _____.

• increases if moisture is available

• stays the same

• decreases because the plant cannot receive moisture fast enough

• increases because humidity always increases with the temperature

_____ is composed of equal parts of shredded sphagnum moss, peat, fine-grade perlite vermiculite, and enough nutrients to sustain initial plant growth.

• Jiffy Mix

• Top soil

• Construction-Grade Soil

• Horticultural-Grade Soil

The general rule of thumb for greenhouses is the day temperature should be ________ the night temperature.

• the same as

• 15 to 20 degrees higher than

• 5 to 10 degrees higher than

• 5 to 10 degrees lower than

The insecticides that are most toxic to warm-blooded animals are the ________.

• chlorinated hydrocarbons

• carbamates

• organophosphates

• carbaryls

The male reproductive part of the flower is called the ________.

Which of the following is NOT one of the three mainstay holidays for florists?

• Valentine’s Day

• Easter

• Mother’s Day

• Christmas

The classification of nonflowering plants that produce seeds is ________.