Pls help IMMEDIATELY !! a. The term describes living things that are best suited to their environment.
b. Species that survive are the ones that make or meet changes.
c. Florida has a rich record.
d. Two examples of land animal fossils found in Florida are the and the .
e. Some animals unable to adapt to the changing environment became .
f. Living things over time to meet their changing environment.
g. This biologist, , studied evolution in the 1800s. h. The was a giant, armadillo-like animal with a spiked tail that once lived in Florida.
i. The Origin of Species is a book written in 1859 about .
j. Nature selects the fittest for because they have useful traits.
k. Changes may occur in animals due to changes in the sequence of base pairs in their DNA, and this is known as a .
l. Oldfield mice show in the color of their fur.
m. The survival of the light-colored oldfield mice on Florida's Gulf Coast is an example of the process called .
n. Evolution is a controversial theory that has survived much .

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

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.