Untitled Quiz

<p>Biflagellate zoospores (D)</p> Signup and view all the answers

<p>Holdfast (B)</p> Signup and view all the answers

<p>Environmental influence on vegetative traits (A)</p> Signup and view all the answers

<p>Common ancestry among organisms in the same taxa (A)</p> Signup and view all the answers

<p>Equal importance of all observable characteristics (C)</p> Signup and view all the answers

<p>Chromosome number and structure (A)</p> Signup and view all the answers

<p>Autotrophic organisms containing chlorophyll and mainly aquatic (D)</p> Signup and view all the answers

<p>Natural systems ignore internal structural features. (C)</p> Signup and view all the answers

<p>By analyzing chemical constituents to resolve classification difficulties (B)</p> Signup and view all the answers

<p>r-phycoerythrin (A)</p> Signup and view all the answers

<p>Vegetative fragmentation (C)</p> Signup and view all the answers

<p>Floridean starch (C)</p> Signup and view all the answers

<p>Cellulose, pectin and polysulphate esters (C)</p> Signup and view all the answers

<p>Warm marine environments (A)</p> Signup and view all the answers

<p>Non-motile spores (A)</p> Signup and view all the answers

<p>Multicellular with complex organization (B)</p> Signup and view all the answers

<p>Two unequal flagella (D)</p> Signup and view all the answers

<p>Primarily freshwater (B)</p> Signup and view all the answers

<p>Laminaria (C)</p> Signup and view all the answers

A system of classifying organisms based on a small number of easily observed characteristics; it does not reflect evolutionary relationships.

A classification system based on natural affinities and evolutionary relationships, considering both external and internal features.

A system of classification based on evolutionary relationships among organisms.

A method of classification that assigns numerical codes to observable characteristics and uses computers to analyze the data.

A classification system that uses cytological information like chromosomes number, structure, and behavior

A system of classification based on the chemical composition of organisms.

Simple, autotrophic, largely aquatic organisms that contain chlorophyll.

A group of green algae that are unicellular, colonial, or filamentous. They are called green algae due to the presence of chlorophyll a and b.

Storage bodies found in chloroplasts of green algae. They contain protein and starch.

Asexual reproduction in Chlorophyceae occurs through flagellated zoospores produced in zoosporangia.

They are brown algae found primarily in marine habitats. They range from simple filamentous forms to large kelps.

Brown algae store food as complex carbohydrates, like laminarin or mannitol.

Sexual reproduction where both gametes are identical in size and appearance.

Sexual reproduction where gametes are different in size but both are motile.

Sexual reproduction where one gamete (egg) is large and non-motile, while the other (sperm) is small and motile.

The red algae class, characterized by the presence of the red pigment r-phycoerythrin.

The food storage product in red algae, similar to amylopectin and glycogen.

R-phycoerythrin is a red pigment that absorbs blue light, allowing red algae to thrive in deeper waters where other algae cannot.

Red algae reproduce vegetatively by fragmentation, where pieces of the thallus break off and grow into new individuals.

Asexual reproduction in red algae occurs through non-motile spores, which are released from the parent thallus.

Red algae reproduce sexually through non-motile gametes that fuse to form a zygote.

Red algae are found in deeper water because their r-phycoerythrin pigment absorbs blue light, which penetrates deeper than green light. Green light, which is absorbed by other algae, is less abundant at deeper depths.