B The layer that is the youngest is the top most layer of the rock.
Answer:
Humans have things that we don't use such as an appendix. Monkeys can walk on two feet. Parrots can talk. Humans have spinal problems because our spine isn't made to be vertical. We share alot of things with other animals. Think about the what you share with a dog, pig, or a bat. For instance animals that only eat plants have teeth like we humans do. Animals that only eat plants have long digestive processes like humans do. They also do not have claws, they instead have thinner nails that an peel, and tear fruit, and other plantage.
The best and most correct answer among the choices provided by your question is the fourth choice or letter D.
The type of sampling method the biologist used was a stratified random sampling.
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A spontaneous reaction is one that favors the creation of products under the reaction's current conditions.
What is spontaneous reaction?
A spontaneous reaction is exergonic and has a negative delta G. The system's enthalpy, or total energy, must decrease and its entropy, or disorder, must rise for a chemical reaction to occur with a net release of free energy (- delta G). The energy needed for cellular function comes from spontaneous reactions.
What is importance of spontaneous reactions in the metabolism of a cell?
- Chemical reactions take place in steps to produce and break down complex molecules as part of cellular activities.
- While some of these chemical processes take energy to complete, others happen spontaneously and release energy.
- Cells must continuously produce additional energy to replace the energy spent by the numerous energy-intensive chemical reactions that take place all the time, just as living beings must continuously consume food to replenish their energy stores.
- The term "cell metabolism" refers to all of the chemical processes that occur within of cells, including those that use or produce energy.
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