Answer:
Grupa chemików z Uniwersytetu Środkowej Florydy pod kierownictwem profesora Fernando Uribe-Romo, odkryła sposób zamiany dwutlenku węgla w paliwo i tlen — naśladując naturalne procesy w jakich rośliny konsumują CO2, czyli fotosyntezę, która z dwutlenku węgla i wody produkuje węglowodany czyli paliwo dla organizmów żywych.
Explanation:
Answer:
Sensitization.
Explanation:
Hypersensitive reaction may be defined as the exaggerated or hyper response of the immune system. Hypersensitive reactions can occur due to auto immunity and allergies.
Type I hypersensitive reaction is mainly mediated by IgE antibodies. The sensitization towards particular stimuli like pollen grains may exaggerate the Type I hypersensitive reaction.
Thus, the correct answer is option (1).
Recently, we found that across several C 4 grasses, leaf width (LW) correlated positively with g sw and negatively with iWUE. Here, using 48 field-grown genotypes of Sorghum bicolor, a C4 crop suited to dry and hot environments, we validated these correlations. Three times a day, we monitored leaf gas exchange and modeled leaf energy balance together with structural characteristics as possible iWUE predictors.
The underlying causes of variance in intrinsic water-use efficiency (iWUE = net photosynthesis/stomatal conductance for water vapors, gsw), particularly in C4 plants, are not well understood. Recently, we found that across many C4 grasses, leaf width (LW) associated negatively with iWUE and favorably with gsw. Here, using 48 field-grown genotypes of Sorghum bicolor, a C4 crop suited to hot and dry environments, we validated these correlations. Three times a day, we monitored leaf gas exchange and modeled leaf energy balance together with structural characteristics as possible iWUE predictors. LW associated favorably with gsw, interveinal distance of longitudinal veins, and the proportion of stomatal aperture relative to maximum while negatively with iWUE, stomatal density, and interveinal distance. Modeling of the energy balance revealed that broader leaves especially during noon when air temperatures approached 40°C, required to open their stomata more to produce a higher negative leaf-to-air temperature differential. These findings demonstrate the crucial part LW, which affects stomatal aperture and coordinates vein and stomatal characteristics, plays in forming iWUE. LW might therefore be used to forecast sorghum genotypes with greater iWUE.
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Answer:
Replication occurs in three major steps:
the opening of the double helix and separation of
DNA strands, the priming of the template strand,
and the assembly of the new DNA segment. During
separation, the two strands of the DNA double helix uncoil at a specific location called origin.
