Modern humans first appeared during the

A. most recent period of the Cenozoic era.

B. most recent period of the Mesozoic era.

C. earliest period of the Cenozoic era.

D. earliest period of the Mesozoic era.

What is a difference between dna replication and rna transcription?

Variation is best described as

What problems do desert plants and rainforest plants have in regards to water, and how have they adapted to deal with these problems?

Is a horse a herbivore or carnivore or omnivore

Which of these is most likely to cause sea levels to rise?

Most crimes involve some evidence relating to the human body; for that reason, what related science is frequently used in forensic investigations? a) psychiatry b) physics c) botany d) biology

When evaluating your resources for authority, which of these question would you ask? A. Is the material too general, too technical, or just right for my needs? B. How recent is the information? C. Has this author been cited in other resources?

Which of these pairs is in Kingdom Fungi? A. mushrooms and bacteria B. diatoms and water molds C. mushrooms and yeast D. protist and virus

What is ne function of the smooth endoplasmic reticulum?

What are the distinguishing features of club mosses, whisk ferns, and horsetails? how are these plants different from ferns?