Carbon is also, as I mentioned before, a bit of a tramp, because it needs four extra electrons, and so it'll bond with pretty much whoever happens to be nearby. And also, because it needs four electrons, it'll bond with two or three or even four of those things at the same time.
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Carbon is also, as I mentioned before, a bit of a tramp, because it needs four extra electrons, and so it'll bond with pretty much whoever happens to be nearby. ... Life is only possible on Earth because carbon is always floating around in our atmosphere in the form of carbon dioxide.Jan 30, 2012
1:0713:14Photosynthesis: Crash Course Biology #8 - YouTubeYouTubeStart of suggested clipEnd of suggested clipThese are like trees and grasses and flowering plants in this case the roots of the plants absorbMoreThese are like trees and grasses and flowering plants in this case the roots of the plants absorb the water and bring it to the leaves through tissues called xylem carbon dioxide.
0:2711:43Evolution: It's a Thing - Crash Course Biology #20 - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt's a thing. It's not a debate evolution is what makes life possible it allows organisms to adaptMoreIt's a thing. It's not a debate evolution is what makes life possible it allows organisms to adapt to the environment as it changes it's responsible for the enormous diversity.
2:2211:42Meiosis: Where the Sex Starts - Crash Course Biology #13 - YouTubeYouTubeStart of suggested clipEnd of suggested clipFour separate cells each of which is genetically distinct from the others meiosis is a lot likeMoreFour separate cells each of which is genetically distinct from the others meiosis is a lot like mitosis except twice. It goes through the same stages as mitosis prophase metaphase anaphase.
Carbon Fixation. The incorporation of carbon from carbon dioxide into an organic compound by an autotrophic organism.
Plants are green because chlorophyll reflects green light. Therefore, chlorophyll reflects green light, while absorbing red and blue light.
Examples of convergent evolution include the relationship between bat and insect wings, shark and dolphin bodies, and vertebrate and cephalopod eyes. Analogous structures arise from convergent evolution, but homologous structures do not.Nov 20, 2021
fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock.
Populations evolve. Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions. These individuals generally survive and produce more offspring, thus passing their advantageous traits on to the next generation.
Mitosis. A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Mitosis conserves chromosome number by equally allocating replicated chromosomes to each of the daughter nuclei. Interphase.
In cell biology, mitosis is a part of the cell cycle when replicated chromosomes are separated into two new nuclei. Cell division gives rise to genetically identical cells in which the number of chromosomes is maintained. Part of "The Amoeba Sisters" series.
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
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