Answer:
Earliest- gametophyte dominance, sporophyte dependence
Middle- sporophyte dominance, gametophyte independence
Recent- sporophyte dominance, gametophyte dependence
Explanation:
The life cycle of plant alternates between the two phases: the haploid gametophyte which produces gametes and the diploid sporophyte which produces spores. The evolution of land plants shows how these are dependent on each other in terms of the requirement of nutrition.
In bryophytes, the gametophyte is the dominant phase on which the sporophyte depended. Later in pteridophytes, the sporophyte became dominant which is present in the later evolved groups namely the gymnosperms and the angiosperms. The gametophyte was independent on the sporophyte but in angiosperms and gymnosperms, it is dependent.
Answer:
Gas exchange between tissues and the blood is an essential function of the circulatory. The air contains oxygen that crosses the lung tissue, enters the bloodstream, and the alveoli are in direct contact with capillaries of the circulatory system. As water flows over the gills, oxygen is transferred to blood via the veins.
Explanation:
There would be dead animals overloading the Earth. Think about it, without worms and other things that break down dead things they would still be here and just sit there.
1. 360 would be the net gain of ATP from the breakdown of ten molecules of glucose under aerobic conditions. The correct option among all the options that are given in the question is the fourth option.
2. The Krebs cycle does not occur if oxygen is not present. <span>The correct option among all the options that are given in the question is the second option.
3. In the Krebs cycle, the carbon atoms in a three-carbon molecules are released in three molecules of carbon dioxide.
4. Oxidation is the name of the process in which oxygen goes in and dehydration is the name of the process in which water goes out.</span>
Answer:
Pros:
Can extend lives
Can create organs
Help eliminate weak genes
Cure disorders
Cons:
Limits sense of individuality
Potential for faster aging
Can be used for exploitation
Debatable ethically
Hope this helps :0)
