Photoperiodic plants react to a certain amount of darkness, referred to as ________ (three words)
Fill in the blank(s) with correct word
critical night length
You might also like to view...
How can the amebozoans, cercozoans, and radiolarians be distinguished from each other with microscopy if they all have pseudopodia?
A) Amebozoans have lobe-shaped pseudopodia, cercozoans and radiolarians both have threadlike pseudopodia, and radiolarians have radial symmetry. B) Amebozoans have lobe-shaped pseudopodia, and cercozoans are significantly smaller in size but contain threadlike pseudopodia just like radiolarians. C) Amebozoans have large pseudopodia, cercozoans have lobe-shaped pseudopodia, and radiolarians have radial threadlike pseudopodia. D) Amebozoans have multiple lobe-shaped pseudopodia, cercozoans have one or two threadlike pseudopodia, and radiolarians have multiple threadlike pseudopodia.
HeLa cells were critical in _____
a. developing the polio vaccine b. developing a cure for malaria c. understanding fertilization d. developing a cervical cancer vaccine e. understanding cloning
Which of the following features would have helped early plant ancestors evolve to a terrestrial existence?
A. apical cells B. plasmodesmata C. a cuticle D. placenta E. All of these features would have helped.
Briefly explain the iron-sulfur world hypothesis and identify two pieces of evidence that support this hypothesis. What will be an ideal response?