The main reason mentioned in the chapter for mammals surviving the K-T extinction is that there was not the competition with the dinosaurs.
The main reason mentioned in the chapter for mammals surviving the K-T extinction is that there was not the competition with the dinosaurs.
The K-T extinction event refers to the mass extinction that occurred approximately 66 million years ago, marking the end of the Cretaceous period and the extinction of non-avian dinosaurs.The chapter highlights that the survival of mammals during this extinction event was facilitated by the absence of competition with dinosaurs.Dinosaurs were the dominant terrestrial vertebrates during the Mesozoic Era, occupying various ecological niches and competing with other organisms for resources such as food and habitat.With the extinction of dinosaurs, the ecological landscape was radically altered, creating new opportunities for mammals to diversify and occupy ecological roles that were previously filled by dinosaurs.Mammals, being small and adaptable, were able to exploit different food sources, habitats, and ecological niches without the competition and predation pressure posed by dinosaurs.This lack of competition allowed mammals to thrive and diversify, eventually giving rise to the wide variety of mammalian species that exist today.Therefore, the absence of competition with dinosaurs is identified as a significant factor that contributed to the survival and subsequent success of mammals during the K-T extinction event.
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When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as: A. the catalysts
B. the substrates
C. the enzymes
D. the reactants
E. the products
When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as the products
The correct answer is option E.
When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars by cellulase in certain fungal species, the resulting glucose monomers are properly defined as the products.
In a chemical reaction, reactants are the starting materials or substances that undergo a change, while products are the resulting substances formed after the reaction. In this case, cellobiose is the substrate, which is the molecule that undergoes the enzymatic reaction. Cellulase is the enzyme responsible for catalyzing the digestion of cellobiose into glucose monomers.
The enzyme cellulase acts as a catalyst in the reaction, facilitating the breakdown of cellobiose into glucose. Catalysts are substances that increase the rate of a chemical reaction without being consumed or permanently changed themselves. However, in the context of the given question, the glucose monomers produced are the final result or product of the enzymatic digestion process.
Therefore, in the digestion of cellobiose, the resulting glucose monomers are correctly identified as the products (option E).
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Summarize your results from your data tables. Compare the results from the respirometers containing germinating and dormant peas. Speculate about the cause(s) of any difference between the two pea samples, and explain your reasoning.
what consists of unsaturated fats
Answer: Lipids consists of unsaturated fats. ↓
Explanation:
Like proteins and carbohydrates, lipids belong to the class of organic compounds. They are a collection of hydrocarbon-based macromolecules that are hydrophobic in nature. The three major families of lipids are steroids, phospholipids, and fats.
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Vegetable oils, nuts, and seeds are examples of foods that are high in unsaturated fats.
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At least one double bond can be found in the chains of unsaturated fatty acids. Since this is created by taking hydrogen atoms out of the carbon skeleton, unsaturated fatty acids have fewer hydrogen atoms than saturated fatty acids. Often obtained from plants or fish, unsaturated fatty acids are liquid at normal temperature. When fats are liquid, they are referred to as oils. Vegetable oils like canola oil and olive oil as well as fish oil are two excellent sources of unsaturated fatty acids.
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Unsaturated fats contain carbon-carbon double bonds.Unsaturated fats are liquid at room temperature.Unsaturated fats have fewer hydrogens per carbon than a saturated fat with the same number of carbons.-
exaplian two situations on a pedigree that would allow you to determine the genotype of an induvudal with the dominant phenotype. Draw a pedigree with each explanation
Pedigrees frequently cover several generations as well as other family members to give a more thorough insight of inheritance patterns. In both situations, the dominant phenotype is expressed in multiple generations, providing clues about the genotype of the individual showing the dominant trait.
Two pedigree situations to explain genotype with dominant phenotypeTwo scenarios can be seen in a pedigree to determine the genotype of a person with a dominant phenotype:
Affected parent and affected child: It is likely that the affected parent is heterozygous, carrying one copy of the dominant allele if they have a child who also displays the dominant phenotype.Two individuals with a dominant phenotype have an unaffected offspring: This shows that both of the affected individuals are heterozygous if the child does not have the dominant phenotype.By taking into account the inheritance patterns shown in the pedigree, these scenarios offer hints regarding the genotype of people with dominant traits.
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