When barium hydroxide, Ba (OH) 2, mixes with water, the solution turns cold.

What is an indicator of a chemical change in the scenario?

formation of a gas

formation of a precipitate

change in energy

change in color

Clinical laboratory scientist is working on the bench, reading plates, and notices that a culture has both a unicellular form and a filamentous form. What type of organism exhibits these forms? a. virus b) fungi c. bacteria d. parasite

He photosynthetic cells in the interior of a leaf are what kind of cells?

According to the cell theory, why is a car not alive? A. cars do not move on their own B. cars do not use energy C. cars are made of metal D. a car is not made out of cells

Anaerobic photoautotrophs were the first organisms to release oxygen into the early atmosphere. a. True b. False

What are two ways nonliving things could affect yellow-rumped warblers?

What would happen if your backbone and spinal cord was injured at your waist

Label the steps for protein synthesis in order, beginning with the first step. step onestep twostep threestep four step five Once the protein is made, the gene for a particular trait is expressed.

In humans, the ability to produce the pigment melanin is dominant over the lack of that ability, a condition known as albinism.

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: