Direct development
Direct development is an idea in biology.  An animal does direct development if the baby animal looks like a small adult and not a larva.  A frog that hatches out of its egg as a small frog has direct development.  A frog that hatches out of its egg as a tadpole does not.  An insect that hatches out of its egg as a small adult does direct development.  An insect that hatches out of its egg as a caterpillar or grub does not.