science reveiw

Traits are passed from one ________ to another through the chromosomes in the reproductive cells.

• life

• generation

• cell

• body

Our DNA is located in our _______.

• alleles

• traits

• factors

• chromosomes

A place where animals live is __________.

• role

• heredity

• covering

• habitat

____________ is the main mechanism of evolution.

• Mutation

• Variation

• Recombination

• Natural selection

Over time ______________ variations survive.

• unfavorable

• favorable

_____________ allow individuals to live into adulthood.

• Adaptations

• Offsprings

• Predators

A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?

• It was discovered in the summertime
• It is wet from a recent rain storm.
• Its leaves curl up on the edges.
• It is eaten by native jungle ants.

When using a dichotomous key to identify organisms, what do we look at?

• physical features
• weather patterns
• environment
• diet

A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?

• Whip Scorpion
• Wind Scorpion
• Daddy long legs
• Scorpion

What is the name of bird W?

• Certhidea
• Geospiza
• Camarhynchus
• Platyspiza