Answer: D
Explanation: It would be D because it has a larger amount and all species vary and leaves can be exactly the same they change color and evolve into different shapes
Answer:
TRUE
Explanation:
The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.
The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.
The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.
The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.
There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.
However, the basic nerve cell is very similar in all animals.
According to modern systems of classification, birds are descendants of T<span>heropoda dinosaurs. These dinosaurs are called Paraves. From this clade, a node is made during the evolution. The new clade is called Aves. This is where birds are classified.</span>
Answer:
Macromolecules such as starches, proteins, and fats store great amount of energy (ATP) by making comlpex chemical bonding. This energy cannot be extracted unless they are digested (broken) first. Therefore, organisms with the help of enzymes break the big molecules to make them simpler compounds. Thereon, energy is extracted through series of chemcial reactions occuring within the animal body, i.e. glycolysis, electron transport chain, etc.
