Carbon and hydrogen have similar electronegativities and combine together to form hydrocarbon molecules. What type of bonds form between these atoms?

A. hydrogen.
B. ionic.
C. polar covalent.
D. nonpolar covalent.
E. electrostatic.


D. nonpolar covalent.

Biology & Microbiology

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Progymnosperms are a group of extinct seedless vascular plants

a. True b. False

Biology & Microbiology

If a mutation prevented the formation of lignin, which tissue would be most affected?

a. vascular cambium b. parenchyma c. collenchyma d. sclerenchyma e. mesophyll

Biology & Microbiology

The production of large quantities of a particular DNA sequence is known as gene ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which term describes kinetoplastida?

a. prokaryotic b. photosynthetic c. parasitic d. ciliated

Biology & Microbiology