Body Tissues. Tissue is a group of cells that have similar structure and that function together as a unit.
Answer:
Altitude
Explanation:
Its the elevation of an object above sea level.
Answer:
ectoderm would be the answer.
Answer:
Genetic variation
Explanation:
It could lead to natural selection, but natural selection isn't the cause. Many years down the road you could see a particular variation having a higher population, which is the result of natural selection/survival of the fittest via better camouflaging from predators.
The correct answer is (c,) They are all enclosed by membranes made of phospholipids. The nucleus, the mitochondria, and the vacuoles of animal all are enclosed by membranes that are made of phospholipids. That is what they all have in common.