Question

 1. Describe the structures and life cycle of Basidiomycota.

 2. What combination of environmental

 and morphological change is similar in the evolution of both fungi and plants?

 3. What is the adaptive advantage

 associated with the filamentous nature

 of fungal mycelia?

 4.

 What do fungi and arthropods have in

 common?

 5. How do fish maintain homeostasis?

 

Answer 1

1. Structure-

Basidiomycota are filamentous fungi and are composed of hyphae and they reproduce sexually via the development of specialised club-shaped end cells called as basidia that normally bear external meiospores. These particular spores are called basidiospores.

Life Cycle-

The lifecycle of basidiomycetes contains alternation of generations. Spores are generally produced through reproduction, instead of asexual reproduction. The club-shaped basidium carries spores called basidiospores. within the basidium, nuclei of two different mating strains fuse, gives rise to a diploid zygote that then endures meiosis. And the haploid nuclei migrate into basidiospores, which germinate and generate monokaryotic hyphae.

The mycelium that results is termed a primary mycelium. Mycelia of various mating strains can combine and produce a secondary mycelium that contains haploid nuclei of two different mating strains. this is often the dikaryotic stage of the basidiomyces lifecyle and and it's the dominant stage. Eventually, the secondary mycelium generates a basidiocarp, which may be a plant organ that protrudes from the ground—this is what we predict of as a mushroom

2. colonization of land and loss of flagellated cells is similar in both fungi and plants evolution.

3. An extensive surface area well suited for invasive growth and absoptive nutrition.

4. Both are Eukaryotes. The presence of chitin in the structural unit of both the arthropods and the fungi is the known common feature shared by both the organisms.

5. In most fishes, body temperature changes with the temperature of the water around them. In order to obtain temperature homeostasis, the fish seek colder or warmer water. There are different types of metabolic adaptations in fish. Temperature and blood pressure are two. Cold-blooded animals must regulate their body temperature by moving.