Lignin

a. is needed directly for photosynthesis.

b. is a red pigment.

c. provides structural support and waterproofing to plants.

d. is the female reproductive cell in seed plants

Determine the sequence of genes along a chromosome based on the following recombination frequencies:A-B-8 map units A-C-28 map units A-D - 25 map units B-C 20 map units B-D-33 map units

You isolate intact mitochondria and equilibrate them in a buffered solution at pH 9, containing 0.1 M KCl and ADP plus Pi, but without succinate.

If there are 40 chromosomes in each body cell of an organism what is the total number of chromosomes normally present in a gamet produced by that organism?

How has the settlement of humans in argriculture societies impacted the environment

Terms in order from smallest to largest: species, biosphere, cell

How many different species are there? kings and kigdoms

What problems might a cell develop if its plasma membrane did not have selective permeability?

What plate are the Hawaiian islands part of

Nucleotide are composed of phosphate group, a sugar, and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide? A. the sugar B. the phosphate group C. the nitrogen group D.

What organ system detects stimuli, secretes chemical and electrical signals, and controls all other organs