The genotype of a unicellular organism as defined by antisera directed against antigenic determinants expressed on the surface. serous gland An exocrine gland that produces a watery, protein-rich secretion, as opposed to a carbohydrate-rich mucous secretion. ...
Thus, in a striking example of convergent evolution, ssDNA viruses apparently evolved on multiple, independent occasions via the same route, recombination between a bacterial plasmid and a cDNA copy of a (+)RNA virus. The ssDNA viruses apparently gave rise to parvoviruses with their linear ...
To changing environmental conditions, a living organism responds by a certain reaction which is a measure of the openness of the system. Changes in biochemical composition and spatial orientation of major biopolymers of cells and culture liquid of unicellular green algae are shown by a noninvasive ...
What is an example of biodiversity?Biodiversity:In ecology, biodiversity is broadly defined as the range and variation of life in an ecosystem. This can include over a within a region, between regions, and over a period of time. Additionally, different measures of biodiversity include genetic ...
Though they are unicellular like bacteria, they do not have distinct cell wall, but they produce a mycelium that is nonseptate and more slender. Actinobacteria include some of the most common soil, freshwater, and marine type, playing an important role in decomposition of organic materials, ...
A universal trade-off between growth and lag in fluctuating environments Article 15 July 2020 Evolutionary scaling of maximum growth rate with organism size Article Open access 30 December 2022 Introduction The defining feature of life is self-replication. For non-interacting unicellular organisms ...
- 2 or more interconnecting food chains, each organism may have different trophic levels 營養層 in different food chain within a food web. - examples of woodland and fresh water habitat (refer to any textbook) Example of food web : Marsh II) Level of organization Arrange the following ecologi...
Here we show that multicellular complexity, including development from a single cell, can evolve rapidly in a unicellular organism that has never had a multicellular ancestor. We subject the alga Chlamydomonas reinhardtii to conditions that favour multicellularity, resulting in the evolution of a ...
Let us note that cooperation in the spectrum of unicellular organisms leads to the emergence of colonies and further integration of cell functions accompanied by a stockpile of individual changes at the level of the genome. When the first multicellular colonies emerged, they had acquired significant ...
The key to this paradox is the recognition that genetic variation and natural selection should allow a unicellular organism to improve its performance and acquire new functions without becoming structurally complex. Furthermore, as environments, survival strategies and ecological niches change over time, ...