Match these items. 1. stores bile
salivary glands
2. makes bile
gall bladder
3. found in mouth
pancreas
4. secretes enzymes
liver

How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex

Which of the following statements are true chromosomes make up genes

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources