Root Structures That Grow Around and Encapsulate Mutualistic Nitrogen-Fixing Bacteria

question 1

Multiple Choice

Root structures that grow around and encapsulate mutualistic nitrogen-fixing bacteria are called ____.  

• A) hyphae
• B) mycorrhizae
• C) Casparian strip
• D) root hairs
• E) root nodules

---

Definitions:

Embryonic

Relating to the earliest stages of development in living organisms before birth or hatching.

Implantation

Attachment of the blastocyst to the endometrium of the uterus, occurring 6 or 7 days after fertilization of the ovum.

Human Embryo

An early developmental stage of human growth and differentiation, starting from fertilization to the eighth week, where major organs and structures begin to form.

Blastocyst

Stage of mammalian embryos that consists of the inner cell mass and a thin trophoblast layer enclosing the blastocele.