Egg cells in a mammal are made in the
The part of a cell which controls which substances enter and leave is the
cell surface membrane cell wall cytoplasm nucleus
Scurvy is caused by the lack of a
carbohydrate mineral protein vitamin
The fetus is protected from damage by the
amniotic fluid oviduct placenta ribcage
The vertebrates which live on land but which reproduce in water are
amphibians birds fish reptiles
The substance made in photosynthesis which stores energy is
carbon dioxide glucose oxygen water
In a food chain the type of organism which feeds on a producer is a
decomposer primary consumer secondary consumer virus
Fibre is important in a human diet because it
contains vitamins is digested to glucose makes us feel full prevents constipation
Iodine solution is used to test plant leaves for
carbon dioxide glucose starch water
The dark object in the centre of a stained human cheek cell is the
cell surface membrane chloroplast cytoplasm nucleus