The nail breathes oxygen to live. The nail breathes the oxygen dissolved in the water.
Given that the aquarium is a small bioma there is not enoguh source of oxygen to replace the oxygen consumed by the snail, except for the oxygen produced by the aquatinc plants inside the aquarium.
Plants produce oxygen through the process named photosynthesis. Photosynthesis requires light.
Given that the aquarium is kept dark, the aquatic plants cannot carry out the process of photosyntthesis and so there will not be generation new oxygen and the snails will die after they do not have oxygen to breath.
I
tripeptides<span> to the </span>culture dish<span> as the </span>cells<span> are </span>added<span>.</span>
In order from least to most dense, it must be: C, B, A and D. Seawater with high temperature causes an object to float, while seawater with low temperature sinks or is denser than high temperature. Salinity is also a factor to determine density; the higher the salinity, the denser the water. In terms of depth, it seems that sample D is the deepest part while sample A is the shallowest. This is determined because temperature drops significantly with depth.
Answer:
how do animals obtain oxygen? animal cells exchange oxygen and carbon dioxide with their surroundings by diffusion across the puter coverings or membranes of cells.
Explanation:
The number of chromosomes present in the haploid cells or gametes of this species, in this case sperm would be half the total genetic information in the plant's cells, in this case 1/2 of 38 which is 19.
The solution is B. 19.
