What are bacterial chromosomes made up of?

A. single circular piece of DNA

B. linear pieces of DNA

C. DNA in paired chromosomes

D. DNA or RNA in various forms

When a particular mutagen identified by the Ames test is injected into mice, it causes the appearance of many tumors, showing that this substance is carcinogenic.

Removal and microscopic examination of a tissue sample to determine if cancer is present is a (n)

Which of the following would be abiotic factors for a polar bear

Living things without a cellular nucleus are called

Which organelle should be listed under both animal cell and plant cell

What do we call dawins explanation for how new species emerge?

Organisms release carbon dioxide back into the atmosphere. What process allows them to do this?

What is considered a pre-existing condition?

Describe a situation in which succession my occur.

1. the paths of winds and ocean currents curve because Earth rotates from west to east this curving of the path is called A Coriolis effect B global winds C jet stream D conviction 2.