The polyphyletic grouping of organisms is based on:
Shared ancestral characteristics.
Homologous characteristics derived from a common ancestor.
Analogous characteristics due to convergent evolution.
A combination of ancestral and derived characteristics.
Related Questions
A scientist is constructing a phylogenetic tree using cladistics. Which type of character would be considered the most informative for resolving evolutionary relationships within a group?
Plesiomorphy
Symplesiomorphy
Autapomorphy
Synapomorphy
In a tetradynamous androecium, one of the following is seen.
Outer whorl of four smaller stamens and inner whorl of two larger stamens
Outer whorl of two larger stamens and inner whorl of four smaller stamens
Outer whorl of four larger stamens and inner whorl of two smaller stamens
Outer whorl of two smaller stamens and inner whorl of four larger stamens
Liliaceae
Woody stems
Five petals and five sepals
Six tepals and six stamens
Inferior ovary
Scaly bulb stem modification is seen in
Allium
Lilium
Scilla
Ginger
Study the following and choose the correct statements. I.Bulb of Allium cepa is a modified stem. II.Cloves of Allium sativum are fleshy scale leaves. III.Corm of Colocasia is a modified root. IV.Tendril in Vitis vinifera is a modified axillary bud.
I and II
II and IV
I, II and III
II, III and IV
Scaly bulb stem modification is seen in
Allium
Lilium
Scilla
Ginger
Study the following and choose the correct statements. I.Bulb of Allium cepa is a modified stem. II.Cloves of Allium sativum are fleshy scale leaves. III.Corm of Colocasia is a modified root. IV.Tendril in Vitis vinifera is a modified axillary bud.
I and II
II and IV
II and III
I and IV
The most advanced family is
Cruciferae
Cucurbitaceae
Compositae
Euphorbiaceae
The vexillum, a characteristic of the papilionaceous corolla, is also referred to as the:
Standard petal
Wing petal
Keel petal
Sepal
Most of the economically important fibre yielding plants belong to family
Malvaceae
Solanaceae
Cruciferae
Poaceae
