If an egg is fertilized by a sperm, with an x chromosome, the united single cell will develop into a baby girl?

x+y= a baby boy
x+x= a baby girl
?

Which of the following describes the rooting reflex? a. a newborn turns the face toward a touch on the cheek in search of food. b. a newborn will automatically suck on objects placed in the mouth like a bottle. c. newborn immersed in water will display something like movement. d. newborn curls a hand around an object that touches the palm

Where does peer pressure come from? a. the power of culture b. the influences of others c. people who purposely try harm you d. the messages in tv commercials

Joni is evaluating her relationship with a peer. which characteristic indicates that she has a healthy relationship with that peer? she knows that her peer has a tendency to lie. she has concerns about how her peer dresses. she tends to break curfew when she is with her peer. she is able to calmly discuss issues with her peer.