A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________. a. gravitropism b. thigmonasty c. thigmotropism d. skototropism

Q: Companion cells are unique to:A. Bryophytes                                          B.…

A: The companion cell is type of cell found as a part of sieve tube element. Companion cells are the…

Q: Cells of the ________ contain chloroplasts. a. epidermis b. vascular tissue c. stomata d. mesophyll

A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…

Q: If you exposed seeds to a series of red light versus far-red light treatments, which of the…

A: Introduction: To absorb light, plants have specific pigments called phototropin and phytochrome.…

Q: Seed germination is stimulated by _____; stem elongation is stimulated by ____________ Select one:…

A: Seed germination is the process of events that begin the germination of seed that grows into new…

Q: Contractile roots usually are combined with such shoot modification as A. Bulb B. Tuber C. Rhizome…

A: Plants contain different parts such as roots, stems, leaves, flowers, and fruits. Each of the parts…

Q: Family Clusiaceae A. Leaf type:____ B. Flower characteristics:____ C. Seed morphology:____…

A: In Linnaean taxonomy, the family is one of the eight primary hierarchical taxonomic levels, located…

Q: Stem regions at which leaves are attached are called ________. a. trichomes b. lenticels c. nodes d.…

A: Plant body consists of various vegetative parts like leaf, stem and root. The reproductive parts of…

Q: Vernalization induces flowering following exposure to a. water. b. drought. c. cold. d. heat

A: The process that includes enhancement of seed production or stimulation of flowering by exposing a…

Q: In a flower after fertilization, the following tissues are diploid: a. carpel, integuments, and…

A: Fertilization can be defined as the process in which a fusion of the male gamete with the female…

Q: Which of the following are reproductive organs? Select all that apply  A. Root B. Leaf C. Stem…

A: In plants, which organs are directly responsible for sexual reproduction, or take part in sexual…

Q: Newly-formed root cells begin to form different cell types in the ________. a. zone of elongation b.…

A: Cell, the fundamental and functional unit of life, is covered by a membrane called plasma membrane…

Q: Presence of all of the following factors promotes dormancy of seeds, except a.Phenolics…

A: Seed is fertilized ovule which has capacity to form new plant from it.  Seed germination is a…

Q: Choose the incorrect statement: a. Bundle sheath cells surround the vascular bundles in both…

A: Complex permanent tissues are composed of two or more types of simple tissues and are heterogeneous…

Q: Most gymnosperm seeds _______________. Select one: a. have attached wings to aid in dispersal b.…

A: Gymnosperms are considered as terrestrial vascular plants possessing proper xylem and phloem for the…

Q: which of teh following is not a stem adaptaion a. peeling bark b. twining stems c. hollow stems…

A: Plant adaptation Plant have adaptations to help them live and grow in different areas. These…

Q: Onion plants are biennials, which live for only 2 years. As a gardener, when should you harvest…

A: Onions are biennial plant. They grow from seed through the dormant bulb.

Q: Root hairs form in the zone of a. cell division. b. elongation. c. maturation. d. More than…

A: Plants are multicellular and eukaryotic organisms. Plant body is made of shoot and root. Shoots are…

Q: A seed containsa. a seed coat. b. cotyledon(s).c. an embryo. d. stored food.e. All of these are…

A: Seeds are produced from ripened ovules and after fertilization. Embryo emerges from the zygote, and…

Q: The coconut water from tender coconut is A. cellular endosperm. B. free nuclear endosperm. C. both…

A: Coconut is an edible fruit found in the tropical areas it is a species of the palm family. It has…

Q: Flower shape and color can be linked to the process ofa. pollination.b. photosynthesis.c.…

A: Flower  It is the main reproductive organ of angiosperms. It is modified from leaf. It have 4 parts,…

Q: Choose the one answer that fits best. Which of the following statements regarding seed germination…

A: * seed germination is a  process which an organism grows from a seed or spore. *sprouting of a…

Q: This hormone’s activity counters many of the growth-promoting effects of other hormones. A.…

A: Auxin, abscisic acid, ethylene, gibberellic acid, cytokinins, salicylic acid, strigolactones,…

Q: Place the letter of the definition in the box next to its correct term Primary growth A. tissue for…

A: In plants , Tissues are formed of multiple cells and is involved in vital functioning in plants .…

Q: When a dicot seed sprouts,a. a coleoptile protects the emerging shoot.b. the shoot develops more…

A: Answer: Introduction: Angiosperm are the largest group of vascular green plants, containing 300,000…

Q: Which of the following is not characteristic of all eudicots? Select one: O A. anthers that contain…

A: The angiosperms are classified into two groups that are dicot plants and monocot plants. Eudicots…

Q: Which of the following statements is NOT true of the stems of vascular plants? a. Stems are…

A: Plants are multicellular eukaryotes composed of cells, tissues, and organs with highly specialized…

Q: Pollen grains in plants are produced in: A. roots B. leaves C. flower D. stem

A: Flowers are also known as blossom. Their primary function is reproduction in plants. They also…

Q: Choose the best answer for following question It inhibits plant senescence. a. auxin…

A: Cytokinin is a category of plant growth substances which stimulate cell division, or cytokinesis, in…

Q: a. Monocot stem Draw or attach a photo of a monocot stem Give characteristics of a monocot stem b.…

A: Monocot stems lack secondary growth because of the lack of cambium in the internal tissue system…

Q: Find out the incorrect one for vernalisation. a.Stimulus of vernalisation is perceived by embryo…

A: Incorrect option : Helps to grow more than one crop in a year. Vernalisation enables biennial plants…

Q: The alternation of generations life cycle applies to gymosperms in that: A. the gametophyte stage…

A: Gymnosperms are vascular plants that produce seeds but not flowers.

Q: 17. what vegetative organ of the plants contains lamina and stipules a. leaves b. roots c.…

A: Leaf structure consists of lamina and stipule. Hence, the answer to question 1 is (A) Leaves

Q: Choose the best answer for following question The seed leaves of a plant are called thea. meristem.…

A: Seeds are the result of the ripened ovule, after fertilization by pollen and some development inside…

Q: Determine the collective true-false status of the statements using the choices below.…

A: Monocotyledons or monocots are grass and grass-like flowering plants that contains only one…

Q: Using scientific concepts and terms describe how the Bucket Orchid can temporarily “hold” onto the…

A: The interaction between the Bucket Orchid and the bee involves a fascinating mechanism where the…

Q: Fruits do not form in gymnosperms becausea. in gymnosperms, the seed is surrounded by the ovule.b.…

A: Answer is a.) in gymnosperms ,the seed is surrounded by the ovule.

Q: The integuments of an ovule will develop into the a. embryo. b. endosperm. c. fruit. d. seed…

A: The integuments are the protective envelope that surrounds the ovule body. Based on integuments…

Q: Determine the collective true-false status of the statements using the choices below.…

A: Plants and trees are the living things which belong to the kingdom plantae in the 5 kingdom…

Q: Match the response with its main trigger. ___ phototropism                a. contact with an object…

A: phototropism - blue light gravitropism - gravity thigmotropism - contact with an object

Q: Match the hormone with the description. ___ ethylene                 a. efflux carriers set up…

A: nitric oxide - active in bursts cytokinin - works antagonistically to auxin in apical dominance…

Q: 1. A short-day plant flowers only when exposed to light for less than 12 hours long. Which of the…

A: Short day plants When the days are shorter than their critical day length, these plants begin to…

Q: Examples of plant hormones includea. cyclic AMP, IP3, and calcium ions.b. calcium, CDPKs, and DELLA…

A: Plant physiology is a field of botany that deals with the study of the physiology of plants. Plant…

Q: What is the flower symmetry of a yellow bell? Why? a. Bilateral/ Zygomorphic b. Actinomorphic/…

A: Allamanda is a tropical shrub or vine that is also described as yellow bell flower or golden…

Q: _______attach mosses to soil. a. Rhizoids c. Roots b. Rhizomes d. Strobili

A: Step 1 Bryophytes are non-vascular embryophytes that are characterized by the presence of an…

Q: Roots differ from stems because roots lack a. vessel elements. b. nodes. c. an epidermis. d.…

A: R.H. Whitaker’s classification system divides organisms into five different groups. Kingdom Plantae…

Q: In flowers, the structures that produce male gametophytes are called______ ; the structures that…

A: Flower can be defined as the organ present in the plant which participates in reproduction. The…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.