The driving force that pushes the root tip through the soil is primarily

Which of the following is the correct sequence during alternation of generations in the life cycle in a flowering plant?

The ______ enclose and protect the flower bud, while the ______ advertise the flower to insects and other pollinators.

Based on the accompanying figure, after fertilization, which cell(s) give(s) rise to the embryo plant?

Guard cells of stomata in leaves of plants are modified

In flowering plants, a mature male gametophyte contains ________.

Which tissue is responsible for the recovery and rapid growth of damaged leaves of grass grazed by sheep in a pasture?

The following question is based on parts of a growing primary root.I. root capII. zone of elongationIII. zone of cell divisionIV. zone of cell differentiationV. apical meristemWhich of the following is the correct sequence from the growing tips of the root upward?

A researcher has developed two stains for use with seed plants. One stains sporophyte tissue blue; the other stains gametophyte tissue red. If the researcher exposes pollen grains to both stains and then rinses away the excess stain, what should occur?

Among plants known as legumes (beans, peas, alfalfa, clover, for example), the seeds are contained in a fruit that is itself called a legume, better known as a pod. Upon opening such pods, it is commonly observed that some ovules have become mature seeds, whereas other ovules have not. Which of the following statements is (are) TRUE?1. The flowers that gave rise to such pods were not pollinated.2. Pollen tubes did not enter all of the ovules in such pods.3. There was apparently not enough endosperm to distribute to all of the ovules in such pods.4. The ovules that failed to develop into seeds were derived from sterile floral parts.5. Fruit can develop, even if all ovules within have not been fertilized.