If the allele frequency of a gene for brown fur is increasing from 15 to 25 percent, the population of the bears is evolving.
Answer: The answer is Anaphase ll
Explanation:
Answer:
Las bacterias se extinguen a tasas sustanciales, aunque parecen evitar las extinciones masivas que han venido afectando a formas de vida más grandes en la Tierra.
Explanation:
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Answer:
6.) larger diameter of stomatal pores
A) Increased transpiration pull
1.) thicker film of water on surface of mesophyll cells
2.) higher relative humidity in air around leaf
B) decreases transpiration pull
3.) less curvature of water surface on mesophyll cell walls
4.) lower rate of water evaporation from surface of mesophyll cells.
5.) larger air space in leaf interior
C) has no effect on transpirational pull.
Explanation:
- Transpiration primarily occurs through stomatal openings in the leaves. Increasing the diameter or size of these opening would ultimately increase the amount of water escaping from them and therefore, increase the transpiration rate.
- Higher humidity in the air entails the presence of greater number of water vapours in the atmosphere. Since osmotic pressure plays a major role in transpiration, therefore, this decreases the rate of transpiration.
