Answer:
This is a word composed of two roots of Greek origin, the first (deinós), means “terrible” and the second (sauros), means lizard, so dinosaur means literally “giant lizard”. This term was invented in 1841 by Sir Richard Owen and was presented during an annual meeting of the British Association for the Progress of Science. The Dinosauria group originally grouped the three only known dinosaurs: Megalosaurus, Iguanodon and Hylaeosaurus, all from England.
Explanation:
The studies carried out by Richard Owen are so many and so extensive that they are practically unmentionable, however, if we speak of the term dinosaur, the work History of British Fossil Reptiles (History of British reptile fossils), dated 1849 .
In this work Richard Owen talks about the large group of reptiles that exercised total hegemony during the Mesozoic Era and named this group with the term Dinosauria, referring to the biological branching of these prehistoric animals.
The term "dinosaur" and "dinosauria" is mainly because Richard Owen studied three fossils that could not be identified with any other fossil or living animal, such was his astonishment that he decided to name these fossil remains as "terrible lizards."
<span>Theories concerning global climate change is
the most widely accepted is: b. Global climate is changing due to
burning of fossil fuels and deforestation.
</span>
Homeostasis, because once the bird body temperature starts to overheat, it's body and mind work together to lower that body temperature down to normal
Answer:
1. Dissolved oxygen (DO) test quantifies dissolved oxygen in the water.
Impact: required for the use of oxygen (aerobic respiration) decomposition
2. Ammonia test measures the level of ammonia.
Impact: leads to algal blooms
3. Carbon dioxide test quantifies carbon dioxide
.
Impact: Increased CO2 leads to decreased water pH
Decreased CO2 decreases rate of photosynthesis
Explanation:
- Dissolved oxygen is a basic water quality test that measures the amount of dissolved oxygen in the water. This test is universally conducted in all settings involving the use of water either for drinking or farming. Oxygen is an important component of cellular respiration. It is the terminal electron acceptor in the electron transport chain and is crucial for energy production to govern life processes.
- The level of algal growth is an indicator of the health of an aquatic ecosystem. Ammonia is a source of nitrates, a nitrogen source required by plants and algae for optimum growth and development. Increased levels of ammonia promote unchecked algal growth, ultimately leading to the formation of algal blooms.
- Carbon dioxide affects multiple aspects of aquatic life. Aquatic plants and algae require carbon dioxide for photosynthesis. Decreased or lower than optimum amounts of CO2 lead to decreased photosynthesis, ultimately causing plant death. Increased CO2 leads to the formation of excessive amounts of carbonic acid. Increased CO2 hinders normal gaseous exchange in aquatic animals and fish.
<span>All living organisms are divided in into prokaryotic (lacking a nucleus) and Eukaryotic cells - with a nucleus. Viruses form an exception because they are not exactly "living organisms" - they cannot live outside of their hosts (they have to live in another cell, so they are not a cell by themselves) - the answer is that they cannot live by themselves, only withing other cells (prokaryotic or eukaryotic) </span>
