wThich of the following was NOI a chalenge for survival of the frst land plant a
ID: 217249 • Letter: W
Question
wThich of the following was NOI a chalenge for survival of the frst land plant a sources of water b sperm transfer dry ing oual predion z. A botanist discovers a new species of plant in a tropical ram forest. Aer cycle, the following characteristics are noted flagellated spern, sylem sporophyte generations with the sporophyte dominast, and oe s related to a mosses b. bryophytes memsfowi separate no sceds This plaeit is peoilyy 3. During glacial periods often coincide with relatively low concentations of Co2 n early evolution of land plants, which of these is a beneficial adaptation re per unit surface area, and what accounts for it? garding the eumber of omatua b, increased c. decreased # of stomata, to retain CO2 prodaced bythe chloroplasts of stomata, to maximize ability to absorb everdec reasing levels of co reased of stomata, to maximize absorption of ever-decrcasing - levels of atmospheri co 4. The development of wood at the vascular c a. primary growth is an example of b. clongation secondary growth d all of the above 5. Which of the structures below represents d a. sperm within a pollen grain a diploid (2n) stage of an angiosperm unfertilized cgg embryow b, embryo within a seed dboth a and b of the following statements about xylem is NOT connest? t transports mainly sugars and amino acids It conducts material upward c. It is comprised of lignin and cellulose. d. No ATP energy from the plant is required for xylem transport 7. The primary function of cells in plant meristem tissues is to b, absorb water. pollinators. d. photosynthesize (c rtract a. replicate gametophyte (ln), rather than a sporoptyte (2s 8. Which plant group's dominant growth form is a as ferns and other seedless vascular pl non-vascular plants b. Bryophytes such as mosses and other CGymnosperms and Angiosperms (vascular plants with seeds) a. Pterophytes such cells will pump po water then fo ta in C3 plants react to a temporary dry spell, the guard cells will of their cell walls, making the guard cells hypotonic d.into: i c. out of; cells close the stomatal opening. a into; hypertonic b. out of hypertionic 15 right, the year 1600 likely had which conditions? aRelatively low rainfall b. Relatively high rainfall c. Average rainfall 10. Looking at the figure showing desert tree rings to theExplanation / Answer
1) The correct option is d. animal predation.
Predation is a major ecological process controlling both the structure and function of communities. They play anessential role in evolution.
2) The correct option is c. Ferns
Flagellated sperm is not found in Chara and flowering plants. Mosses and Liverworts do not have Xylem. This removes them and forms the new species most resemble Ferns.
3) The correct option is d.increased # of stomata, to maximize absorption of ever decreasing levels of atmospheric CO2.
4) The correct option is c. secondary growth.
The development of wood at the vascular cambium is an example of secondary growth. This process is known as secondary growth, which results of cell division in the vascular cambium.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.