Answer the following question given this paragraph: How many species actually exist in the world? No one knows for sure because only a small percentage of them have already been discovered. Estimates range from 5 to 30 million total species currently in existence. Many of them live on coral reefs and in tropical rainforests (see Figure below ). These two ecosystems have some of the greatest biodiversity on the planet. Q: Coral reefs and tropical rainforests are ecosystems known for what, contributing greatly to the species in existence on earth? Choices: - commensalism - mass migrations - spontaneous mutation - biodiversity A:
biodiversity
(Question)
Answer the following question given this paragraph: This passage from a Bach cello suite could be played by any trained musician from any country, because there is agreement as to what the symbols on the page mean. In the same way, molecules are represented using symbols that all chemists agree upon. Q: Molecules are represented by symbols that all who agree on? Choices: - astrologists - geologists - physics - chemists A:
(Answer)
chemists
Ques: Answer the following question given this paragraph: The rate at which a device changes electric current to another form of energy is called electric power . The SI unit of powerincluding electric poweris the watt. A watt equals 1 joule of energy per second. High wattages are often expressed in kilowatts, where 1 kilowatt equals 1000 watts. The power of an electric device, such as a microwave, can be calculated if you know the current and voltage of the circuit. This equation shows how power, current, and voltage are related:. Q: What term describes the rate at which a device changes electric current to another form of energy? Choices: - kilowatts - voltage - kinetic energy - electric power A:
Ans: electric power
(Q).
Answer the following question given this paragraph: Q: Catenulids typically reproduce asexually by budding where? Choices: - their anterior end - their neuronal end - their analogous end - their posterior end A:
(A).
their posterior end
Ques:Answer the following question given this paragraph: Living species of chordates are classified into three major subphyla: Vertebrata, Urochordata, and Cephalochordata. Vertebrates are all chordates that have a backbone. The other two subphyla are invertebrate chordates that lack a backbone. Q: Living species of chordates are classified into three major subphyla: vertebrata, urochordata, and what? Choices: - spirogyra - invertebrates - xerophyte - cephalochordata A:

Ans:cephalochordata
Answer the following question given this paragraph: Q: Proto-oncogenes normally help regulate what? Choices: - cell transition - cell death - cell function - cell division A:
cell division