A. There were animals 3 billion years ago; they just weren't fossilized. B. Animals are warm-blooded; the ocean was too cold for animals.
The making of replicas of the original fossils, is pretty much the say way, just different materials, in which the fossils originally have been formed and preserved.
When an organism dies, be it a plant or an animal, it gets fossilized only if very quickly after the death it is covered with sediments or mud. The sediments or the mud protect the plant or animal from the outside influences, so once it is kind of in a vacuum, or protective layer if you will, in which parts of the plant or animal that are long-lasting are preserved.
The clay and plaster used for the replica, work in the same way, because they wrap around the fossil tightly and isolate it from outside influences, with the result being different though, as they just make a copy of the fossil.
In the human body, enzymes function as catalysts to speed up reactions by helping to lower the activation energy needed to start a reaction.
Although some RNA molecules can also act as enzymes, proteins constitute the vast majority of enzymes.
The primary function of enzymes is to decrease the activation energy, or the energy required for a process to start. Enzymes bind to reactant molecules and hold them in place to enable the chemical bond-forming and bond-breaking processes.
The energy of the transition state, which products must pass through in order to become reactants, is reduced by enzymes.
Instead of using energy to move till they collide at random, they might group the reactants together to make it easier for them to interact. They could direct the process along a different pathway with lower activation energy.
By tying them to the active site, they might place the reactants correctly. As a result, the reactants can interact with less energy because they won't have to fight against intermolecular forces that would normally try to separate them.
Temperature, ionic circumstances, and environmental pH all have an impact on how quickly an enzyme.
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Answer:
An arrangement of all the chromosomes of a diploid cell is called a kayrotype
Lipids are stored as triacylglycerols and waxes on both animals and plants
<h3>What is lipids ?</h3>
Lipid can be described as an organic compound that is not soluble in water. lipid is an essential component that is needed for proper functionality in both plants and animals.
In plants, lipids help provide lots of energy that is needed for different metabolic processes that goes on in the plant. Lipids also help fight off pathogens in plants
In animals, lipids also serve as an energy source and they help in the regulation of the different hormones present in the body. Lipid also help signal important molecules when they are required in the body and they also help in the proper digestion of food molecules.
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