D) higher density than water
Answer: Cellulose
Explanation:
Starch and cellulose are they two primary polysacharride found in plants.
Starch is the storage polysacharride found in plants in consisting of both linear chain amylose and branch chain amylopectin.
While Cellulose is the structural polysacharride in cell wall of plants. Cellulose consist of a linear chain of thousands of D-glucose units linked together by beta linkages.
Answer:
Sn^2+
Explanation:
A specie is diamagnetic if it has only paired electrons in its outermost shell. This implies that, we must first deduce the outermost electron configuration of the species. From that, we can now make our decision regarding which of the species is diamagnetic.
Bromine:
Electron configuration:
[Ar]4s2 3d10 4p5
Not diamagnetic
Chromium:
Electron configuration:
[Ar]4s1 3d5
Not diamagnetic
Phosphorus:
Electron configuration:
[Ne]3s2 3p3
Not diamagnetic
Tin II ion:
Electron configuration:
[Kr]4d10 5s2
Diamagnetic
Sickle cell anemia is the result of point mutation a change in one nueclotide in the gene of hemoglobin. the mutation makes the hemoglobin in red blood cells to to distort to a sickle cell shape when deoxygenated.
The adaptation that helped plants survive on land are vascular systems.
This means that when plants became vascular plants, they were able to start living on land because the elements of the vascular system helped them take water and nutrients from the soil, and in return emit oxygen into the atmosphere around them.