Explain the diversity of invertebrates, chordates, and primates using the theory of evolution
Describe the structures and body systems of animals that allow them to maintain homeostasis
Describe the structures and body systems of animals that allow them to sense and respond to their environment
Describe animal behavior
Explain the concept of natural selection
Explain how species evolve
Describe the classification of organisms by biologists
Explain why fossils have been important in establishing current thinking about the history of life on Earth
Describe the human circulatory, respiratory, digestive, and excretory systems and explain how these systems work together to maintain homeostasis
Describe the human nervous system and explain how this system controls body functions
FIY this isn't a test or anything it's a practice worksheet
Then, for heavens sakes, take advantage of this practice worksheet. It was given to you so you could learn by finding your own answers.
1. Unicellular cells must carry out ___ of life. all functions specific functions a single function a few functions 2. Which statement is correct about the movement of unicellular organisms and multicellular organisms? Parts of a unicellular organism are
Which of the following statements is true? 1.Both unicellular and multicellular organisms are at risk of having too much water entering their cells if they are exposed to water containing no salts. 2.Only multicellular organisms have structures that enable
Which resources most directly led to the development of early civilizations in river valleys? Select all that apply. A.^^^^^^ fertile soil B.^^^^^^ fresh water C. metal ores D. slaves E.^^^^^^ stone Which feature of civilizations describes a shared set of
A virus mutates, and therefore it has which of the following traits of living things?(1 point) It is made of cells. It evolves. It uses energy. It grows and develops. Compare a virus to a unicellular organism.(1 point) Viruses need energy; unicellular
This was originally posted on another student's thread. Which traits describe both Homo sapiens and Neanderthals? Select the three correct answers. A. They had complex language skills. B. They hunted animals. C. They had smaller brains than earlier
A teacher had her students write down hypotheses about an experiment. Which is a valid hypothesis? A. Energy gets transferred among all the organisms of a food chain B. All living organisms are made from at least one cell C. If people like the smell of
1) Which group of elements is the least reactive? Explain why. 2) What properties distinguish metalloids from other elements? 3)Explain how to predict the charge usually observed for a monatomic ion.
The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon dioxide carbon source carbon sink*** Bacteria add carbon to the carbon cycle by decomposing dead organisms.***
Which one of the following animals is most likely to be a keystone species, based on the food web provided? grasshopper birds It breeds rapidly and has no predators in this environment. They might introduce other organisms, like viruses and bacteria. The
Describe a simple laboratory experiment to distinguish between calcium hydrogen carbonate and sodium hydrogen carbonate
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