Answer: D
Explanation:osmosis is the movement of molecules from a region of lower concentration to a region of higher concentration through a semi permeable membrane.
Workers being hit by materials, caught between them or in pinch points.
Exceeding load limits.
Falling caused by improperly stored materials.
Poorly maintained lifting devices.
Damaged racking & storage units.
Material handling whilst on ladders, stools, etc.
Answer:
People use fallen tree limbs for fuel when their population is DENSE.
Explanation:
Haemoglobin is an iron rich pigment that carries oxygen
Answer:
D. The threat of predators to eat eggs
Explanation:
The internal gestation followed by live birth was an adaptation developed by the mammals on land, and by some fish in the water, like the sharks. The mammals have been the most marking ones in this adaptation though. They too were producing eggs initially, but because they were living in an environment where there were numerous animals that preyed upon them, as well as their eggs, they had to be innovative. They developed internal gestation, where the embryo was developing inside the body of the female, and then it was born alive. This was providing extra safety, as the embryo was always with the mother, instead of being left alone and not guarded, thus an easy meal for the predators. The two types of internal gestation that the mammals developed are the placental and marsupial types, with the placental turning out to be more successful over time.
