A quick summary of Biology.
• Fundamental Characteristics of Life: Living organisms share key features including responsiveness to stimuli, growth and development, reproduction, energy utilization, and maintenance of homeostasis (a stable internal environment). The cell is the fundamental unit of life, existing in prokaryotic (lacking a nucleus and membrane-bound organelles) and eukaryotic (possessing both) forms.
• Genetics and Heredity: DNA, a molecule composed of nucleotides (adenine, thymine, cytosine, and guanine), carries genetic information. Genes, located on chromosomes, determine traits through protein synthesis. Traits are passed from parents to offspring, a process governed by Mendelian genetics (homozygous and heterozygous genotypes).
• Energy, Reproduction, and Evolution: Organisms obtain energy through various methods (heterotrophs consume, autotrophs photosynthesize), using it for metabolism and ATP production. Reproduction can be asexual or sexual, leading to biodiversity. Natural selection, as proposed by Darwin, explains how advantageous traits increase an organism's survival and reproduction, potentially leading to the formation of new species.
Please check out our YOUTUBE channel. We have created 3200 videos, have had 170 million views, and have 530,000 subscribers.
0 comments:
Post a Comment