The correct answer is C. Dilation, strong contractions, and delivery of the baby and the placenta
Explanation:
Labor and delivery is divided into three main stages: the first stage includes the latent phase in which cervical dilation begins (3 to 5 cm) along with mild contractions and the active phase in which strong contractions occur along with complete or almost complete dilation; the second phase is the fetus expulsion or delivery in which the cervix is fully dilated and the baby is born; and the third stage is the delivery or expulsion of the placenta that occurs as the placenta separates from the uterus and is expulsed through mild contractions. Thus, stages of labor and delivery are dilation, strong contractions, and delivery of the baby and the placenta.
Answer:
Option A.
Organisms in the deepest part of the ocean come up to the surface to breath.
Explanation:
- Abyssal zone is the part of the ocean towards the bottom. It consists of 83% of the ocean.
- The zone is completely dark. There is no sunlight striking this zone so the organisms which require sunlight are not found here.
- The organisms like sharks and deep sea fish in this zone have to reach above them for breathing dissolved oxygen as this zone has no such plants to produce oxygen.
