Which of these is the best statement for the main idea of the passage? The bluebonnet is the state flower of Texas. You can see these beautiful flowers along Texas roadsides each spring.

The texas bluebonnet must interact with many forces in order to grow and bloom. These include the force of gravity and the force of water pressure inside its cells.

The Texas bluebonnet must overcome the powerful force of gravity in order to grow and produce its beautiful flowers.

Plans like the bluebonnet use the force of water pressure to push out their seeds and up through the soil against the pull of gravity.

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.  

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.