The evolutionary relationships between the two members of each pairs you have chosen In your discussion include structural adaptations and their functional significance?

Answer 1

PAIR A:

Green algae and Vascular plants:

-Chlamydomonas is an unicellular alga common in freshwater lakes and ponds. It is usually by the shore and also in fish or frog tanks. It goes through the water by two flagella. Green algae are large and complex enough to qualify as seaweeds. There are about 6000 species of green algae. Many species live their lives as single cells, while other species form colonies or long filaments. Some organisms rely on green algae to conduct photosynthesis for them.

-Vascular plants lignin hardened vascular tissues providing strong support which circulate resources through the plant, enabling the stems to stand upright and grow tall on land than non-vascular plants. For the vascular plants the generation phase is the sporophyte, which is always the diploid with two set of chromosomes per cell. The non-vascular plants are usually gametophyte, and is a haploid with one se of chromosomes per cell.

-- so the non vascular like the green algae don't have the true conducting tissue, leaves or roots. They are relatively small due to the lack of elaborating of conducting tissues. The gametophytes are the dominant phases and the sporophytes are dependent upon them. They also required water to help fertilizations so the could grow in moist or seasonally moist in their habitats.

Answer 2

1. Frogs and toads: Although both are amphibians, frogs have slim bodies and long legs adapted for jumping and swimming, while toads have shorter legs and warty skin for camouflage and protection. These structural adaptations are linked to their habitats and hunting strategies, with frogs being more agile and toads relying on camouflage and toxin secretion.

2. Cheetahs and leopards: Both are big cats in the Felidae family, but cheetahs have slender bodies, long legs, and distinct black tear marks for hunting speed, while leopards have a more muscular build and rosette-patterned coat for stealth. These adaptations cater to their hunting styles, with cheetahs relying on speed to catch prey, while leopards use a combination of strength and camouflage.