1. how is reproduction similar between humans and flatworms?

fertilization occurs when sperm fuses with egg.

dna of the offspring will be identical to the parent.

they can reproduce sexually and asexually.

2. the process of phagocytosis, a part of the immune response when a white blood cell engulfs a pathogen and breaks it down, is the process that your body uses to fight off

bacteria

viruses

muscle cells

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !