Answer:
Prophase; when the nuclear envelope breaks down,
prometaphase; the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down
metaphase; The chromosomes line up across the center of the cell
anaphase; The centromeres split
telophase; The chromosomes begin to stretch out and lose their rod-like appearance
Which simple machine can be described as a rope that is threaded through a wheel or disk?
The correct answer is B - Pulley
A pulley is a simple machine that is used to lift loads. It consists of a wheel on which a rope is placed and the rope is pulled by the person towards himself to lift the load that is tied on the other side of the rope. There are three main types of pulleys: fixed, movable, and compound.
Answer:
Permeable soil will let more water and air to drain through the plant as this type of soil loses too much water.
Explanation:
A soil possessing an enhanced quality to transfer water is known as permeable soil. Hence, there would be more drainage in the soil with enhanced permeability. Permeable soil loses more water as compared to the impermeable ones. Hence, choosing permeable soil would be best for plants that require a lot of drainage. To check permeability of soil two types of tests are performed which are the constant head method and falling head method.
C. When exposed to antibiotics, most bacteria in a population die but some survive and live to reproduce.
