Harmful environmental agents cause an average of 4-5 percent of birth defects. Please select the best answer from the choices provided T F

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from