Movement

Respiration

Sensitivity

Excretion

Species

tissue

organ

organ system

diffusion

osmosis

active transport

catalyst

enzymes

photosynthesis

limiting factor

ingestion

Mechanical digestion

Chemical Digestion

absorption

assimilation

egestion

transpiration

translocation

pathogen

transmissible disease

active immunity

passive immunity

aerobic respiration

anaerobic respiration

deamination

synapse

sense organs

hormone

Homeostasis

gravitropsim/geotropism

Phototropism

Drug

asexual reproduction

sexual reproduction

fertilisation

pollination

self-pollination

cross-pollination

sexually transmitted infection

inheritance

chromosome

gene

allele

haploid nucleus

diploid nucleus

mitosis

meiosis

genotype

phenotype

homozygous

heterozygous

dominant

recessive

sex-linked characteristic

variation

mutation

gene mutation

adaptive feature

fitness

process of adaption

food chain

trophic level

food web

producer

consumer

herbivore

carnivore

decomposer

population

community

ecosystem

genetic engineering

sustainable resource

sustainable development