Match these items. 1. send out
2. controls heredity
3. groups of tissues working together
4. take in
5. substance that builds tissues
protein
absorption
excretion
DNA
organ

Aboy with an extra x chromosome probably has which of the following syndromes?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms