B, Provide nutritional support to the embryo. It is not D, as the breasts are not part of the female reproductive system. It isn't C because during pregnancy, fetal and maternal blood do not mix. It also isn't D since women do not produce sperm.
The Krebs cycle. The steps are
1. Glycolysis
2. Krebs Cycle
3. Electron transport chain.
The Calvin cycle is in photosynthesis.
The answer would be D, as even though both velocity and speed may share similar resultants in this scenario, speed is a scalar, while velocity is a vector. Thus, velocity can have direction and move negatively (the opposite direction from which it started) while speed is a measurement of quantity.
Carl Linnaeus. Pls mark as brainliest
The answer is 1,000. Have a great day!