The first is incorrect because the more massive an object, the more gravitational force acts on it.
The second is false because the gravitational force decreases with distance. It's why the outer planets are usually smaller.
The third is true. It depends on both mass and distance and attracts two objects together.
The fourth is false because temperature and pressure have nothing to do with gravity.
<span>D All organisms experience evolution
</span>Common ancestry is identified in the genes. Selection forces are the drives to these physical and composition changes of an organism however, it can be traced back.
<span>Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. </span>
The statement is true. Dead zones are the zones of oxygen depletion, which is caused by excessive running off of the fertilizers into the water body. These chemicals, particularly the nitrates, which are used by algae etc. which bloom by using the nitrates and use the oxygen present in the water. When they die, oxygen levels become critically low till then, for other aquatic animals like fishes etc., to survive.
White blood cells make up approximately 1% of the total blood volume in a healthy adult, making them substantially less numerous than the red blood cells at 40% to 45%.
