Guard cells are responsible for allowing carbon dioxide to enter a plant. they also control the release of oxygen and water to the atmosphere. based on this description, where are guard cells located? a. on the surface of leaves b. along the root system c. the interior portion of leaves d. within the stem

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an