The answer is shallow, warm, continental seas.
The Ordovician-Silurian extinction happened about 450-430 million years ago. Before the extinction, most multicellular organisms lived in the seas. It was a rich life in shallow, warm, and continental seas. The climate was favorable. Reef-forming corals, as well as the first true vertebrates, some fish, appeared. Trilobites and mollusks were diverse and rich. Green algae were common in the seas.
Answer:
The correct match of terms with their descriptions are -
A. anaerobic respiration
B. pyruvate
C. Fermentation
D. aerobic respiration.
Explanation:
Anaerobic respiration is the process that involves the production of energy from sugar or carbohydrate in absence of oxygen.
Pyruvate is the intermediate product or substance of the various metabolic process including cellular respiration.
The chemical breakdown of the sugars is known as fermentation. It takes place due to the enzymatic reaction to change in the organic substance.
An aerobic respiration occurs in most eukaryotic organism in order to get energy by the breakdown of sugar or food in presence of the oxygen
Answer:
Race refers to a person's physical characteristics, such as bone structure and skin, hair, or eye color. Ethnicity, however, refers to cultural factors, including nationality, regional culture, ancestry, and language. ... You can have more than one ethnicities but you are said to have one race, even if it's "mixed race".
Hope this helps !
Answer:
The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang, or the time when the universe began. As the theory goes, when the universe was born it underwent a rapid inflation and expansion. ... The CMB represents the heat left over from the Big Bang.
Its Survival!! ( I hope this helps)
