Event 2 Occurs a Time ΔT After Event 1

question 34

Multiple Choice

Event 2 occurs a time Δt after event 1. If event 2 is caused by event 1, which of the following is true?

• A) The distance between event 1 and event 2 can be anything.
• B) The distance between event 1 and event 2 is not more than c Δt.
• C) There are frames of reference in which event 2 occurs before event 1.
• D) There are frames of reference in which event 1 and event 2 are simultaneous.
• E) None of these choices are correct.

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Definitions:

Blastocyst

A structure formed in the early development of mammals, consisting of a sphere of cells enclosing a fluid-filled cavity and a cluster of cells from which the embryo develops.

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of pregnancy.

Observable Characteristics

Traits or features of an organism that can be seen or measured directly.

Phenotypes

The observable characteristics or traits of an organism resulting from the interaction of its genetic makeup and its environment.