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Name one (1) contraceptive method used by women and explain how it works. Abstinence may NOT be the method mentioned.

Which of the following is/are correct in a predator-prey cycle?

Trace the path of the sperm through the female reproductive tract from the point where it enters until it reaches the egg. Note: the oviducts are also called fallopian tubes.

Write the sequence of the mRNA obtained from this DNA sequence: TACTGATCGACCAACT

When observing the skeleton of a snake, you see the remains of hip and hind leg bones associated with four legged animals. These bones are called

Which of these contributes to blood clotting?

Choose the correct statement about energy flow in ecosystems.

What is the correct sequence in which a drop of blood returning from the body encounters the heart chambers? Start with the chamber where it enters the heart and end with the chamber where it goes out into the body.

These are three examples of physical barriers that prevent entry of pathogens into our body: skin, mucus, stomach acid. They are part of the

If you are tracing the path of blood from the right to the left side of the heart, you must mention the _____ since blood passes through it (them).