What is the difference between a tissue and an organ system? an organ system includes tissues. tissues are composed of organ systems. a tissue cannot exist unless it is part of an organ system, but an organ system can exist independently of tissues. tissues are not composed of cells, but organ systems are composed of cells?

As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content