Which of the following is a key feature of happiness? joy

contentment

feeling like life is meaningful

All of the above options are features of happiness

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?