Which of the following is NOT a characteristic of plants?
B. Cell walls containing chitin
The first land plants likely evolved from
B. Green algae
Two gases that plants must exchange are
C. Oxygen and carbon dioxide
Recent changes in the classification of the plant kingdom are based on
A. Studies comparing DNA sequences
Under unfavorable conditions, the green alga chlamydomonas reproduces by forming a
C. Diploid zygote
The dominant stage of a moss is the
Water is carried upward from the roots to every part of a vascular plant by
The leaves of ferns are called
All of the following are characteristics of gymnosperms EXCEPT
The male reproductive structures of seed plants are called
C. Pollen grains
The structures on a pine tree that contain the gametophytes are
The green structure in the diagram is called
A. An embryo
In angiosperms, the mature seed is surrounded by a structure called a
A plant that has a two-year life cycle is a
Which of the following is a basic requirement of plants?
D. All of the above
What stage in the alteration of generations is represented by fern fronds?
Which of the following is NOT a characteristic of dicots?
C. Parallel veins
Which of the following is a structure associated with gymnosperms?
The mature plant ovary is also referred to as the
Plants cultivated for food are mostly
What is the independent variable?
Which variable(s) should the students have held constant?
A. Plant type
What can you conclude based on the data?
B. There is an optimum temperature for the photosynthesis in this species of conifer