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Biology

Juan received a class assignment to write about organisms that live in extreme environments. While doing research online, he found an image that showed microbial bodies thriving in hot springs. The organisms lacked a nucleus or defined organelles. Which organisms can he possibly find in such conditions? a. plant-like protists b. animal-like protists c. fungus-like protists d. archaea

Iron attaches oxygen to what in our bodies? A. muscles B. teeth and bone C. red blood cells

Nutrients that our bodies need in small amounts are called_____. a. micronutrients b. macronutrients c. essential fatty acids a. saturated fat

What complication is the nurse aware of that is associated with deep venous thrombosis? swelling of the entire leg owing to edema immobility because of calf pain pulmonary embolism marked tenderness over the anteromedial surface of the thigh?

What did Charles Darwin discover as a result of his experiments with breeding pigeons?Desirable traits can be selected for and bred in offspring.Humans can create new species through selective breeding.Dogs and plants can be bred the in same way as pigeons.The pigeons had distinctive traits that were passed on to offspring

Why is a particular sequence of bases in a segment of DNA important to cells? A. Some base sequences contain the order of sugars in polysaccharides. B. Some base sequences cause the release of lipids from the nucleus. C. Some base sequences produce electrical signals sent to the cytoplasm. D. Some base sequences code for protein production.

Which is the best definition of a conclusion? A- a written description of events that occurred during an experiment B- an act of recognizing and noting an occurrence by using the senses C- a possible explanation of a scientific question based on observation D- an experiment that uses data to support or reject a hypothesis

In darwin's day, most people believed that the characteristics of offspring are an average of their parent's characteristics. this concept is called __________ inheritance.

The initial evolution of humans occurred on which continent?

Excess salt in the body can damage cells and organs. Marine iguanas, which live on the beaches of the Galapagos Islands, eat mostly seaweed. They have ducts that remove excess salt from their bodies. How are the salt ducts an adaptation to the iguanas' environment?

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