Viruses cannot reproduce. they instead copy themselves with the help of a host cell. a cell can reproduce and doesn’t need help from other cells
They reproduce over the years making it less frog to survive
The Precambrian eon is separated from the Phanerozoic eon in the fossil record because of the sudden appearance of organisms.
Explanation:
Precambrian eon is the initial existence on earth that can be predicted by the study of rocks and remaining of fossils. It has been seen as the existence of skeleton in this era, before this era no such things has been observed, even the development of sexual reproduction.
The Phanerozoic era comes after the Precambrian era, more advanced kinds of fossils of animals had been observed in this era. Phanerozoic era period of life on earth. Large organisms sudden appearance are seen in the Phanerozoic era i.e. First dinosaurs, mammals, fishes, angiosperms,first vertebrates etc.
Answer:
1/4
Explanation:
1-Mother:
The probability to pass the disorder to her progeny is: 1 x 1/2 = 1/2
Father:
2-The probability to pass the disorder to his progeny is: 1 x 1/2 = 1/2
Therefore, the probability to have the disorder is equal to the product of both independent events, i.e., 1/2 x 1/2 = 1/4 or 25%
<span>Hemoglobin
is the part of the red blood cell that carries oxygen, and so important for
thriving. In the case of Brian, having 10.4 g/dL hemoglobin is very low. Normal
values for hemoglobin in males range from 13.5 to 17.5 g/dL. The patient has
very serious anema and note he is just 15 months old, and so needs immediate
doctor’s attention. The doctor is likely to order a blood transfusion to
elevate hemoglobin levels and stabilize the patient before ordering tests to
determine cause of anemia.</span>
