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Biology

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Ella McKenzie

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Cards in this guide (8)
What is an angiosperm

It is a plant that has flowers and produces seeds enclosed within a carpel. The angiosperms are a large group and include herbaceous plants, shrubs, grasses, and most trees.

Angiosperms (a plant whose ovules are enclosed in an ovary) are commonly referred to as "flowering plants", as opposed to gymnosperms, or "cone bearing plants."

Angiosperms form a phylum, the phylum Anthophyta. Angiosperms are also called anthophytes or magnoliophytes. The sporophyte is dominant and the gametophyte is the most reduced of all plants. There are so far more than 300,000 far named angiosperms. Angiosperms evolved in the Cretaceous. Many have close-bound mutualisms with pollinating insects.

Angiosperms are divided into monocotyledons and eudicotyledons (dicotyledons)

What is gene flow

Gene flow is genes moving between two populations.

the transfer of genes from one gene pool to another

two populations transferring genes

Which is an example of a vestigial structure

tailbone of a human

whale pelvis bone

Which is a characteristic of something in the domain Archaea

No cell Nucleus/Unicellular

Why are archaea in a different domain from bacteria

They are thought to have separate paths of evolutionary development.

They developed along different evolutionary paths.

They had independent evolutionary development.

How are organisms in the domain Eukarya different from those in the domain Archaea

Eukaryotes have a nucleus, Archaea do not

Archaea have DNA that is not in a nucleus

Eukaryotes have organelles in membranes.

Archaea have no membranes around their organelles.

they both have a cell wall.

What is an effect of adaptive radiation

Speciation Adaptive radiation refers to changes in a species in response to varying environmental conditions.

many new species form

Which organisms are most closely related

Apex is Mergus serrator and Mergus merganser.

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