Simple Greens
Pollen Culprits
Join the Census
Connect the Dots
Cycles and Damages
100

A component found in plants that allowed land plants to grow tall and outcompete simpler plants.

Vascular tissue (xylem and phloem)

100

The structure found in gymnosperms and angiosperms which allowed them to be the dominant plant forms on the planet.

Seeds

100

The branch of ecology that would take into account interactions between colonies of chimpanzees.

Population Ecology

100

The type of interaction seen through the interaction of a honey bee and sunflower in which the bee gains nectar and the sunflowers are pollinated.

Mutualism

100

The means by which energy enters ecosystems.

Solar Radiation

200

A derived characteristic for all land plants

Alternation of generations, walled spores, multicellular gametangia, apical meristems

200

The phylum for the Virginia state flower: Flowering Dogwood.

Anthophyta

200

The biome characterized by a breeding ground for many oceanic fish as they swim up to covered areas which involve a transition area between sea and river.

Estuary

200

The type of climate studied by looking at the community within the inside of a hollow log.

Microclimate

200

A human action that can lead to a species' extinction vortex

Overharvesting, Introduced Species, Habitat Destruction, Global Changes

300

The dominant generation of ferns and their chromosome category.

Sporophyte; Diploid

300

The structure within flowers that is the stalk of the stamen.

Filament

300

A limiting factor for the sardine population as density rises.

Predation, Competition, Disease

300

The trophic level assigned to an coyote in the following food chain:

Grass --> Grasshopper --> Squirrel --> Coyote

Tertiary Consumer

300

The population with the most biomass in the following food chain:

Grasshopper --> Squirrel --> Owl

Grasshopper

400

A phylum of plants without vascular tissues

Bryophyta, Anthocerophyta, Hepatophyta

400

Angiosperms with parallel leaf veins and one cotyledon.

Monocot

400

The population selection done by manatees where gestation lasts 13 months and cows often only have one calf.

K-selection

400

An example of a keystone species of our temperate broadleaf forest.

Oak tree, hickory tree, coyote, owl, etc.

400

The location at which nature reserves are ideally established

Biodiversity Hotspot

500

The specialized structure of land plants that produces haploid female gametes

Archegonia

500

The two products of double fertilization and their chromosome categories.

Endosperm (triploid) & Embryo (diploid)

500
The suspected population change in a given 6 months for northern shortfin squid if the population is currently at 800 individuals and 600 squid are born, but 650 die and the carrying capacity is 2000.

~29 less

500

The diversity index for a community if:

White Breasted Nuthatch: 23

American Robin: 18

Tufted Titmouse: 21

~0.663

500

The main reservoir of nitrogen where nitrogen fixing bacteria obtain it.

Atmosphere