Answer:
Early land animals had both lungs AND gills, and their bodies consisted of few hard parts. Meaning they lacked things like an exoskeleton for instance. Animals today have either lungs OR gills and many have protecting hard parts of their bodies.
Explanation:
Answer:
Because natural selection selects for it. Thus it persists.
Explanation:
You have to understand heterozygote advantage. Basically, it's where heterozygotes have an advantage over homozygotes. In the case of sickle cell disease, heterozygotes have an advantage, and natural selection favors whatever is advantageous. Thus, because heterozygotes each have one recessive sickle-cell allele, as natural selection favors the heterozygotes, the recessive sickle-cell allele persists and remains in the gene pool.
Answer:
In my opinion, the processes of heat transfer assume a significant function in the energy and radiation equilibrium of the earth temperature framework. Down welling radiation causes warming of the earth's surface because of direct daylight ingestion and furthermore because of the back radiation from the climate, which is the source term of the so intensely examined air nursery or Barometrical warming impact.
Upward radiation also adds to cooling and guarantees that the retained energy from the sun and the earthbound radiation can be delivered back to space and the world's temperature can be settled.
Explanation:
For every one of these processes, especially, the association of radiation with infrared dynamic atoms is of significance. These particles emphatically retain earthbound radiation, produced from the world's surface, and they can likewise be energized by some warmth move in the climate. The consumed energy is re-radiated consistently into the full strong point yet somewhat additionally re-assimilated in the environment, so the radiation underlies a persistent collaboration and change measure over the engendering distance.
In spite of the fact that the fundamental relations for this collaboration of processes of heat transfer, Radiation with atoms are now notable since the start of the earlier century, up to now the right utilization of these relations, their significance, and their ramifications for the environmental framework are examined conflicting in the network of atmosphere sciences.
Cellular respiration provides the ATP necessary for muscle contractions
Answer: shrink
A red blood cell placed in a medium that is hypertonic relative to its cytoplasm will shrink
Explanation:
Since the hypertonic medium has a higher concentration than the red blood cell, water will move out of the cell membrane of the red blood cell into the hypertonic medium.
Thus, after a while the continuous loss of water will cause the red blood cell to shrink (reduce in size)
