It was a life changing event. Around 66 million years ago, at the end of the Cretaceous period, an asteroid struck Earth, triggering a mass extinction that wiped out the dinosaurs and around 75% of all species.
Dinosaurs roamed the Earth in the Mesozoic Era, which is divided into the Triassic, Jurassic, and Cretaceous periods. They first arose during the Triassic period about 245 million years ago. Dinosaurs first appeared in the Middle Triassic and became the dominant terrestrial vertebrate in the Late Triassic or Early Jurassic, occupying this position for about 150 to 135 million years until their demise at the end of the Cretaceous. This era is popularly known as the "Age of Reptiles" and for good reason: reptiles, and particularly dinosaurs, were the dominant terrestrial vertebrate animals at the time. The PT extinction was the most severe in Earth's history, and was likely driven by intense volcanic eruptions and associated rapid climate change. This extinction decimated many early groups of reptiles and amphibians, and may have created environmental space for dinosaurs and other new groups to evolve.
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MitochondriaMitochondria are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP). ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process is called aerobic respiration and is the reason animals breathe oxygen. Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. In fact, mitochondria enable cells to produce 15 times more ATP than they could otherwise, and complex animals, like humans, need large amounts of energy in order to survive.</span>
Uncooked food chicken is mainly where u get this from
Humans do have 5 sensory organs namely eyes ears nose tongue and skin. Each of them do have different stimuli to receive from environment.
<h3><u>Explanation:</u></h3>
Most of the sensory organs house in the head of human beings. Functions of each of them are discussed below:
A. The eyes house in the cranium orbit and are two in number which senses the visible spectrum of electromagnetic waves also called as light rays. The retina in the eyes sense it and sends the information via the optic nerve.
B. The ears house on lateral sides of head which sense the audible range sound waves. The organ of Corti senses the sound vibrations and sends them to brain via auditory nerve.
C. The nose house on the midline of head on the anterior surface which senses the smell and sends via nerves.
D. Tongue houses in the buccal cavity which senses the taste of food and sends via different nerves to brain.
E. Skin is located all over the body and it senses different stimuli like pressure, temperature, pain etc and sends to brain via different sensory nerves.
Answer:
Atlantic Ocean.
Explanation:
The Atlantic Ocean is on the Eastern coast of North and South America.
