Bio Review Part 4

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

• commensalism
• mutualism
• parasitism
• predation

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Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

• Predation

• Parasitism

• Commensalism

• Mutualism

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A MUSHROOM is a

• Herbivore
• Carnivore
• Omnivore
• Decomposer

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According to this food chain, which is the TERTIARY CONSUMER?

• Bee
• Dog
• Frog
• Chicken

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In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine

The process to go from DNA to mRNA is _______

• translation
• transcription
• replication

DNA has a _____________ structure. 

• double helix
• single strand
• ring 
• chain

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I am the outer most layer of an animal cell. What am I?

• cell wall
• nucleus
• cell membrane 
• cell skin

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What organelle is called the "powerhouse" of a cell?

• Endoplasmic Reticulum
• Nucleus
• Mitochondria
• Nucleolus

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Which of the following is NOT an example of natural selection? 

• People selectively breeding hamsters.
• Insect populations developing resistance to certain pesticides.
• Bacteria becoming resistant to antibiotics.
• Male birds of certain species developing colorful feathers to attract female mates.

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