How do plant roots "know" to grow downward?

Which is true regarding all X-linked disorders? Group of answer choices they are caused by mutations of the X chromosome they are linked to an unknown chromosome they are disorders that affect only women they result in a longer lifespan

Which feature do prokaryotic and eukaryotic cells share

Humans can change the abiotic components of an ecosystem. Plowing of farmland can lead to which of the following? Question 9 options: better water quality better air quality increased soil erosion less sun exposure

Are zebras vertebrates

Which example describe biotic and abiotic factors interacting with the environment? A a valley filling up with rain water b sunlight shining through a window c oxygen circulating in the atmosphere d dolphins communicating with each other

List 4 piece's of evidence that support the theory plate tectonics

Which is the best example of a force counteracting Fp? using a dolly to push a box to another location two children pulling apart a wishbone a group of dogs pulling a dogsled across ice two people pushing a broken-down car up the road

What layer of atmosphere reflects radio waves

Which functional group allows the sugar glucose to dissolve in blood? a. Carboxyl b. Hydroxyl c. Phosphate

A protein is in its native conformation when a. it is thermodynamically least stable b. it has the highest gibbs free energy c. it is in any of its functional, folded states d. it is unfolded e. none of the above