Answer:
D. The threat of predators to eat eggs
Explanation:
The internal gestation followed by live birth was an adaptation developed by the mammals on land, and by some fish in the water, like the sharks. The mammals have been the most marking ones in this adaptation though. They too were producing eggs initially, but because they were living in an environment where there were numerous animals that preyed upon them, as well as their eggs, they had to be innovative. They developed internal gestation, where the embryo was developing inside the body of the female, and then it was born alive. This was providing extra safety, as the embryo was always with the mother, instead of being left alone and not guarded, thus an easy meal for the predators. The two types of internal gestation that the mammals developed are the placental and marsupial types, with the placental turning out to be more successful over time.
<span>a)The patient will have less hemoglobin in the blood. (Hemoglobin is carried in red blood cells)
</span><span>c)The patient will have a reduced oxygen supply to the cells. (Red blood cells are responsible for carrying oxygen to cells )
Answer Choices A and C are correct
Hope this helps :)</span>
They are related because a modern bird has scales on its feet..
Answer:
Yes, your answer, nitrogen, is correct (the most appropriate option). However, oxygen is also a correct option.
Explanation:
Nitrogen exists on its own as a diatomic gas. However, it exists as organic nitrogen in nucleic acids such as DNA and RNA (as part of their nitrogenous bases) and in the amino (--
) group of amino acids.
Do note that a case can also be made for oxygen as a right option: like nitrogen, it exists as a diatomic gas and can be found in both nucleic acids and in the carboxylic group of amino acids.
Sulfur is not an appropriate option as nitrogenous bases (and nucleic acids) to the best of my knowledge do not contain sulphur although some amino acids like cysteine do.
Carbon is not also an appropriate option because elemental carbon does not exist in gaseous form even though it can be found in both nucleic acids and amino acids.
Answer:
The correct answer is: Recapitulation Theory.
Explanation:
The Recapitulation Theory began as an idea by Étienne Serres in the 1820s that later, in 1886, was took by Ernst Haekel when he proposed his "<em>Ontogeny recapitulates phylogeny</em>" theory. Recapitulation Theory combines evolution and embryology and states that the development of an individual when an embryo, summarizes the evolutionary history of its species.
