The aortic valve is in the left ventricle. When the heart muscle contracts (or beats), it is pumping blood out of the heart. ... The right side collects oxygen-poor blood from the body then pumps it to the lungs where it can pick up oxygen and release carbon dioxide.
Answer: What is the defining characteristic of eukaryotic cells? Put these in your own words.
Eukaryotic cells are defined by the presence of a nucleus containing the DNA genome and bound by a nuclear membrane (or nuclear envelope) composed of two lipid bilayers that regulate transport of materials into and out of the nucleus through nuclear pores.
What types of organisms have eukaryotic cells?
There is a wide range of eukaryotic organisms, including all animals, plants, fungi, and protists, as well as most algae. Eukaryotes may be either single-celled or multicellular.
C. If the algae made the sea turtles sick, then removal from the water and treatment would make them healthy.
Looking at the description of the situation, Shenita hypothesized that sea turtles were affected by toxins from a recent red tide event. So she removed them from the contaminate environment and treated them with a drug to counteract the red tide toxins. And the way things turned out, her hypothesis looked correct. With that in mind, let's look at the options and pick the correct one.
A. If the water is dirty, then it would make the sea turtles die.
* This is a possibility, but it's rather generic and not specific to the situation Shenita observed. So this is a bad choice.
B. If the chemicals in the water made the sea turtles sick, then filtering the water would make them healthy.
* This is also true. But Shenita didn't do any water filtering and this doesn't apply to the observed situation. So another bad choice.
C. If the algae made the sea turtles sick, then removal from the water and treatment would make them healthy.
* This pretty much describes what happened. So this is the correct choice.
D. If the sea turtles are in clear ocean water, then they should go to the mote marine lab.
*This doesn't describe the situation, so it's a bad choice.
Unicellular organisms
Explanation:
Unicellular organisms typically respires faster to release energy.
Respiration is a gaseous exchange between cells and the environment. Here, oxygen is taken in by the cell and carbon dioxide is the by product of the metabolic process.
- Unicellular organisms will respire faster because they are at the lowest level of organisation.
- The cells are in direct contact with the environment.
- They do not require special set up to obtain and circulate oxygen in them.
- The waste of the metabolic process is also discarded easily and very fast.
- Organisms at lower levels of organisation typically have a faster rate of respiration.
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