(B) analyze issues regarding the use of fossil fuels
and other non-renewable energy sources or alternative energy sources;
and
(C) analyze the significance and economic impact of
the use of fossil fuels and alternative energy sources.
(15) The student evaluates components of plant science
as they relate to crop production. The student is expected to:
(A) analyze plant physiology, genetics, and reproduction
of various crops;
(B) recognize characteristics related to seed quality
such as mechanical damage, viability, and grade;
(C) identify plant pests and diseases and their causes,
prevention, and treatment;
(D) perform plant management practices such as germination
tests, plant spacing trials, and fertilizer tests; and
(E) measure trends in crop species and varieties grown
locally in Texas and the United States and how they affect agriculture
and consumers.
(16) The student identifies how plants grow and how
specialized cells, tissues, and organs develop. The student is expected
to:
(A) compare cells from different parts of the plant,
including roots, stems, and leaves, to show specialization of structures
and functions; and
(B) sequence the levels of organization in multicellular
organisms that relate the parts to each other and the whole.
(17) The student diagrams the structure and function
of nucleic acids in the mechanism of genetics. The student is expected
to:
(A) describe components of deoxyribonucleic acid (DNA)
and illustrate how information for specifying the traits of an organism
is carried in DNA;
(B) identify and illustrate how changes in DNA cause
phenotypic or genotypic changes;
(C) compare and contrast genetic variations observed
in plants and animals; and
(D) compare the processes of mitosis and meiosis and
their significance.
(18) The student demonstrates skills related to the
human, scientific, and technological dimensions of crop production
and the resources necessary for producing domesticated plants. The
student is expected to:
(A) describe the growth and development of major crops;
(B) apply principles of genetics and plant breeding;
(C) examine the development of crop varieties through
the origin of agriculture; and
(D) design and conduct investigations to support known
principles of genetics.
(19) The student explains the chemistry involved in
plants at the cellular level. The student is expected to:
(A) compare the structures and functions of different
types of organic molecules such as carbohydrates, lipids, proteins,
and nucleic acids;
(B) compare the energy flow in photosynthesis to the
energy flow in cellular respiration; and
(C) investigate and identify the effect of enzymes
on plant cells.
(20) The student identifies the sources and flow of
energy through environmental systems. The student is expected to:
(A) summarize forms and sources of energy;
(B) explain the flow of energy in an environment;
(C) investigate and explain the effects of energy transformations
in an ecosystem; and
(D) investigate and identify energy interaction in
an ecosystem.
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