Answer the following question given this paragraph: Q: Catecholamines are a class of amine hormones synthesised form which amino acid? Choices: - epinephrine - dopamine - phenylalanine - tyrosine A:
tyrosine
Answer the following question given this paragraph: Pangaea has been breaking apart since about 250 million years ago. Divergent plate boundaries formed within the continents to cause them to rift apart. The continents are still moving apart. The Pacific is shrinking as the Atlantic is growing. The Appalachians ( Figure below ) are now on a passive margin. The mighty mountains have weathered and eroded to what they are today. Q: How many millions of years ago did pangaea begin breaking apart? Choices: - 600 - 400 - 500 - 250 A:
250
Q: Answer the following question given this paragraph: Q: The white fluffy part of popcorn is also what? Choices: - phosphor - membrane - jiffy - endosperm A:
A: endosperm
Question: Answer the following question given this paragraph: All living things need energy. You can often see energy at work in living things. Look at the hummingbird and jellyfish in Figure below . Both of them are obviously using energy. Living things constantly use energy in less obvious ways as well. Inside every cell, all living things need energy to carry out life processes. Life runs on chemical energy. Where does this chemical energy come from?. Q: Each cell and every living thing requires what? Choices: - potassium - calcium - salt - energy A:
Answer: energy
*Question*
Answer the following question given this paragraph: Life Cycles of Algae: Zygotic Meiosis (A), Gametic Meiosis (B) and Sporic Meiosis (C). In life cycle A (left), diploid (2n) zygotes result from fertilization and then undergo meiosis to produce haploid (n) gametes. The gametes undergo mitosis and produce many additional copies of themselves. How are life cycles B and C different from life cycle A?. Q: What do gametes undergo to produce many additional copies of themselves? Choices: - prophase - angiogenesis - cytokinesis - mitosis A:
**Answer**
mitosis
(Q).
Answer the following question given this paragraph: The digestive system consists of organs that break down food, absorb nutrients, and eliminate waste. Q: What body system consists of organs that break down food, absorb nutrients, and eliminate waste? Choices: - lymphatic system - hormonal system - skeletal system - digestive system A:
(A).
digestive system