Ecology
According to the USDA Plant Hardiness Zone Map, Maryland encompasses which range of zones?
5b-8a
True or false? A lily is an example of a monocot.
True
On which insect body region would you find the legs and wings?
The thorax
The best way to improve the structure of a soil that contains a large percentage of clay is to amend it with
organic matter
What are the optimum conditions for powdery mildew development?
Warm days and cool, humid nights
How many years does it take for a mature forest in Maryland to develop from a field?
100-200 years
Which of the following is a fruit?
a) asparagus
b) walnut
c) onion
d) sweet potato
walnut
Complete metamorphosis of insects includes
egg, larva, pupa, and adult
The three major mineral solids of soils are
sand, silt, clay
At what point would pesticides need to be applied to control plant pathogens?
Before symptoms appear
List 4 practices that exploit or alter an ecosystem.
digging a new garden bed
planting scarlet runner beans to attract hummingbirds
spreading compost around shrubs
overseeding the lawn with grass seed
The leaflet of a compound leaf can be distinguished from a simple leaf by the
absence of axillary buds
What are some differences between sawflies and moths?
moth larvae have 5 or fewer pairs of prolegs, but sawfly larvae always have more than 5 pairs of prolegs
List why is organic matter so important to soil?
it slowly releases nutrients to plants, it holds water for plant uptake, it increases earthworm and microbial populations, it loosens clay soils and improves drainage
WHat is the purpose of a desease triangle?
The disease triangle describes when a disease is likely to occur.
Where in Maryland is the Coastal Plain physiographic region?
Southeastern Maryland
When using the scientific name of a plant, such as Pinus strobus, the first name refers to what?
The genus
Why are mites not classified as insects?
mites have 8 legs, less than 3 body regions, and no antennae
True or false. Reduced oxygen level is an adverse condition of acidic soil.
false
What is a dodder? And what are some susceptible plants?
A dodder is a parasitic seed plant with orange tendrils. Ornamental plants and vegetables are susceptible to this disease.
Eutrophication is the process by which
Nutrient run-off causes algal blooms in waterways that block sunlight and deplete oxygen
WHat are some characteristics of a monocot?
their vascular bundles are scattered randomly in the stem, their flower parts are in multiples of three, & their veins are finely netted
Defining characteristics of the order Coleoptera (aka beetles) are
they have 2 pairs of wings; the front pair of wings are hardened and known as elytra; the hind pair of wings are membranous and folded under the front wings
Which two nitrogen-containing molecules do plants take up through their root system?
nitrate and ammonium
Water molds are fungi that depend on wet conditions for growth and reproduction. Two very important diseases named for the genuses of the water molds that cause them are
Pythium/Phytophthora