plz hep p8 points if u do the table below shows the half-life of an element:
half-life data
element half-life
carbon-14 5,730 years
scientists have found that the carbon-14 content of an unknown prehistoric sample was reduced to one-half. what best describes the identity of the sample?
an organism that died more than 10,000 years ago
a rock that formed more than 10,000 years ago
an organism that died 5,730 years ago
a rock that formed 5,730 years ago

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Nucleic acid certain protein cell membranes certain carbohydrates