Concepts in BiologyWm. C. Brown Publishers, 1991 - 535 страница Concepts in Biology is a short, student-friendly text organized in a traditional manner. It has very little botany and presents a human-oriented approach to the animal unit. Professors and students appreciate the low cost of this title, and that it is written for students who are not biology majors. |
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Страница 42
... four places it can bond , the carbon atom can combine with four other atoms . This is the case with the methane molecule , which has four hydrogen atoms attached to a single carbon atom . Methane is a colorless and odorless gas usually ...
... four places it can bond , the carbon atom can combine with four other atoms . This is the case with the methane molecule , which has four hydrogen atoms attached to a single carbon atom . Methane is a colorless and odorless gas usually ...
Страница 155
... four , and these hap- loid cells contain only one complete set of four chromosomes . You can see there are eight chromosomes in this cell , four from the mother and four from the father . A closer look at figure 9.4 shows you there are ...
... four , and these hap- loid cells contain only one complete set of four chromosomes . You can see there are eight chromosomes in this cell , four from the mother and four from the father . A closer look at figure 9.4 shows you there are ...
Страница 243
... Four Basic Food Groups - Serving Sizes . Photographs ( a - d ) illustrate serving sizes for each of the basic food ... four servings from ( b ) the fruit and vegetable group , four servings from ( c ) the bread group , and two servings ...
... Four Basic Food Groups - Serving Sizes . Photographs ( a - d ) illustrate serving sizes for each of the basic food ... four servings from ( b ) the fruit and vegetable group , four servings from ( c ) the bread group , and two servings ...
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What Is Biology? | 2 |
What Is Biology? | 11 |
1 Edward Jenner and | 15 |
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activities allele amino acids amount animals atoms attached bacteria behavior biological body bonds called carbohydrates carbon dioxide cause cell membrane cellular cellular respiration centrioles changes chapter characteristics chemical chromatids complex contain cycle cytoplasm diet diploid disease ecosystem EeDd electrons energy environment enzyme eukaryotic example factors female fertilization Figure free earlobes function gametes gene frequencies gene pool genetic genotype glands glucose growth haploid homologous chromosomes hormones human hydrogen increase individual insects intestine involved ions kcalories kinds living things male materials meiosis metabolic mitosis mRNA muscle mutation neuron nitrogen normal nucleotides nucleus nutrients occur offspring oocyte organelles organic molecules ovary oxygen pair parasites PGAL phosphate photosynthesis plants population produce prokaryotic protein protons pyruvic acid reactions released reproduction respiration result ribosomes sexual species sperm stage structure substrate sugar surface synthesis trophic level vitamins X chromosome