Please Help !! Cause I Don’t Know

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

Which of the following is true about vigorous intensity movements. playing single tennis or riding a bike on a hilly surface playing soccer riding bike on a flat surface playing double tennis or playing basketball all of the above

In weight training, "listen to your body" means to stop lifting if you feel bored or unmotivated. select the best answer from the choices provided. t f