What was the first cell type produced in the absence of oxygen? A. prokaryotic B. eukaryotic C. fungus D. algae

Name the organ systems that come in contact with the external environment

A group of similar cells that perform a particular function is called

Where can a scientific theory be changed?

Which phase of meiosis is represented? A. telophase II B. metaphase II C. anaphase I D. prophase I

How do plants respond to heat?

A researcher has sequenced a gene that has two alleles. she has a mixture of both alleles and clones them into e. coli using plasmids. she is interested in one particular allele that is correlated with a disease.

List 3 roles of DNA in relation to genetic information:

Select all the offspring phenotypes that could be produced from a BbEE x bbee cross (shown above). black fur, red eyes black fur, black eyes white fur, black eyes white fur, red eyes

A cell is placed into a hypertonic solution. How does the concentration of water differ in the solution and the cell cytoplasm?

What are the 'paired organs' that are the most important part in our respiratory system?