In both stems and leaves, photosynthetic tissues lie beneath the __________
a. cortex
b. periderm
c. pith
d. epidermis
e. sclerenchyma.
D
You might also like to view...
In addition to causing skin cancer later in life, ultraviolet light destroys the B vitamin folate. Folate deficiencies in pregnancy may result in birth defects
Which of the following do you think is a stronger selective pressure for high skin pigmentation in high UV environments? A. skin cancer prevention B. birth defect prevention C. both are equal
Because of the similarity in cellular morphology among the Enterobacteriales, biochemical or genetic tests are needed for identification of particular genera and species.
Answer the following statement true (T) or false (F)
Which factor currently tends to regulate abundance of commercially valuable estuary species such as oysters and crabs?
a. Competition b. Predation c. Human activities d. Normal seasonal die off e. Disease
What are the results of double fertilization?
A) Egg cell and sperm cell B) Diploid zygote and diploid endosperm C) Embryo sac and pollen sac D) Triploid endosperm and diploid zygote E) A zygote and an embryo