Embryonic Development Begins with a Single Egg Fertilized by a Single

question 3

Multiple Choice

Embryonic development begins with a single egg fertilized by a single sperm, forming a zygote which then divides by mitosis. How many cells are present in the embryo at the conclusion of four mitotic divisions?

• A) 2
• B) 4
• C) 8
• D) 16
• E) 32

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Definitions:

Pre-Selecting

Pre-selecting involves the advance selection or setting of a mode, gear, or option before it is actively needed, allowing a system or device to respond more quickly or fluidly at the moment of activation.

Twisted Mainshaft

A mainshaft that has suffered deformation, often due to excessive torque or a manufacturing defect, leading to misalignment of gears or components.

Synchronizers

Components in manual transmissions that help match the speeds of the gear to be engaged with that of the output shaft, allowing for smooth shifting.

Engine Mounts

Components that attach the engine to the vehicle's frame or body, absorbing vibration and shock to minimize cabin noise and vibration.