Answer:D) increased predation and fatalities at the edge of the habitats adjacent to the road
Explanation:just did it
Explanation: Elephants have been extensively hunted for ivory for more than 300 years, natural selection is often proposed as the underlying mechanism for an increase in the proportion of tuskless or small-tusked elephants in a population.
Answer:
The seed plants are often divided arbitrarily into two groups: the gymnosperms and the angiosperms. The basis for this distinction is that angiosperms produce flowers, while the gymnosperms do not.
Explanation:
The seed plants are often divided arbitrarily into two groups: the gymnosperms and the angiosperms. The basis for this distinction is that angiosperms produce flowers, while the gymnosperms do not. This is poor form, since it defines the gymnosperms by the absence of a character, and not by any features that the organisms actually share. The gymnosperms do share a number of features, but, as should be obvious from the above cladogram, they are not more closely related to each other than to the angiosperms (Anthophyta). The features shared by gymnosperms were likely present in the early ancestors of the flowering plants as well. It should also be noted that the "progymnosperms" are represented by a box of a different color, in order to make it clear that they are not actually seed plants, but rather are included here because they are believed to be the closest relatives of the seed plants.
Systematics within the seed plants is poorly understood. Part of the problem is that most of the major groups have gone extinct, and several of the groups alive today consist primarily of plants with highly derived morphologies. The above cladogram is based largely on the work of Jim Doyle, a professor at UC Davis, and Michael Donoghue, currently at Harvard, and is therefore somewhat preliminary. It includes some questionable groupings not explicitly supported in their papers.
course of action is obtain a tube of water filled to the same volume to place across from the specimen
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Why do blood samples need to be centrifuged?</h3>
The effect of heparinized blood sample centrifugation time on clinical chemistry and immunology results has rarely been studied. The WHO recommended a 15-minute centrifugation time without citing any scientific publications. The time spent centrifuging has a significant impact on the turnaround time.
On a Roche Cobas 6000 system, we examined 74 parameters in samples from 44 patients to see if there was a statistically significant difference in test results between specimens centrifuged at 2180 g for 15 minutes, 2180 g for 10 minutes, or 1870 g for 7 minutes. For each centrifugation condition, two tubes with different plasma separators (both Greiner Bio-One) were used. Deming fit was used to make statistical comparisons.
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