Is a hammer a pulley when u use it to take out a screw.

Artificial selection involves the use of robots and "test tube babies." True False

If you hold a balloon by a string and the balloon moves toward your sweater and sticks there, what would you infer

The scientific method is limited to investigating phenomena that are: (Select all that apply) observable visible measurable repeatable falsifiable

Alexander graham bell studied the human ear and noticed how sounds were transmitted when a membrane (the eardrum) vibrated. he applied this knowledge to the development of the telephone, using a similar process of vibration of a membrane.

Which of the following is not involved in the regulation of transcription? A. introns B. DNA methylation C. nucleosomes D. regulatory proteins or transcription factors

How does respiratory system relate to respiration making ATP?

What is the largest group of reptiles that ever lived?

What best describes somatic mutations

Ben is an entomologist studying ant behavior. He wants to know whether ants are pollinators for a specific plant. In which stage of the plant's life cycle should he check whether a significant number of adult ants are acting as pollinators? A.

Why do living things use enzymes instead of heat as a source of activation energy? A: Adding heat does not affect how chemical reactions take place. B: Adding sufficient heat would harm or kill a living thing.