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Natural Selection vs Evolution Evolution There are several theories put forward to explain the process of evolution. Carolus Linnaeus believed in the creation of God, but thought species could change to some extent. Lamark recognized that, within his life time, an organism could acquire adaptations to the environment. There was, however, no known way […]
The key difference between autosomes and chromosomes is that humans have 22 pairs of autosomes that determine somatic characteristics while humans have a total of 23 pairs of chromosomes in a cell. As cell theory explains, a new cell originates from a pre-existing cell by cell division. Further studies have recognized the importance of the […]
The key difference between plasmid and chromosome is that the plasmid is a circular double-stranded extra-chromosomal DNA structure of bacteria while the chromosome is a well-organized thread-like structure that contains genomic DNA tightly coiled with proteins. The bacterial cell contains a chromosome and several extra-chromosomal DNA circles called plasmids. Bacterial chromosome contains the genomic DNA […]
The key difference between prokaryotic and eukaryotic ribosomes is that the prokaryotic ribosomes are 70S particles composed of 50S large subunit and 30S small subunit while the eukaryotic ribosomes are 80S particles composed of 60S large subunit and a 40S small subunit. Prokaryotes and eukaryotes are two major groups of living organisms that differ from […]
Spermatogenesis vs Spermiogenesis An important objective in the life of all the living beings is the reproduction and making sure that their kind will survive in the future. In order to reach that objective successfully, the sexual reproduction is instrumental, and the gametes from males and females are mixed with each other to produce […]
Gross Primary Productivity vs Net Primary Productivity Have you ever wondered how would food come into our hands? Animals and other consumer organisms cannot eat or consume solar energy, but photosynthetic plants and algae are greatly capable of doing so. It sounds sensible that the production of food takes place in plants by using […]
The key difference between Bryophytes and Ferns is that the bryophytes are nonvascular plants having a dominant gametophyte generation while the ferns are vascular plants having a dominant sporophyte generation. Through the evolutionary process, earth colonized with vascular plants and non-vascular plants which are called primitive land plants. Among these primitive land plants, bryophytes are […]
初级生产总值(GPP)和净初级刺激uction (NPP) Even though earth is a closed system for materials and nutrients, it is an open system for the energy. Primary production is the process which inorganic compounds such as water and carbon dioxide are converted into organic compounds through living organisms using an energy source. […]
The key difference between external and internal fertilization is that the union of male and female gametes in external fertilization occurs outside the female body while the union of male and female gametes in internal fertilization occurs inside the female body. Fertilization is the most important event that takes place in sexual reproduction. In other […]
Allele vs Trait In 1822, Mendel observed different forms of hybrids by hybridization of pea plants (Pisum sativum) and the statistical relationship between them. The offspring resulted from hybridization showed interesting clear cut differences in the length of stem, color of seed, shape and color of pod, position, and color of seed. These seven […]
