Description : gymnosperms are heterosporus. but Cycas bears both male and female on one tree. how? -Biology
Last Answer : answer:
Description : Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas ... D and E (b) B, C and E (c) A, C and D (d) B, C and D
Last Answer : (a) A, D and E
Description : Which of the following statements is correct? (a) Ovules are not enclosed by ovary wall in gymnosperms. (b) Selaginella is heterosporous, while Salvinia is homosporous. (c) Horsetails are gymnosperms. (d) Stems are usually unbranched in both Cycas and Cedrus.
Last Answer : (a) Ovules are not enclosed by ovary wall in gymnosperms.
Description : Which of the following statement is correct ? (1) Ovules are not enclosed by ovary wall in gymnosperms (2) Selaginella is heterosporous, while Salvinia is homosporous (3) Horsetails are gymnosperms (4) Stems are usually unbranched in both Cycas and Cedrus
Last Answer : (1) Ovules are not enclosed by ovary wall in gymnosperms
Description : Classify the following into gymnosperms and angiosperms. Wheat, pinus, bean, Cycas
Last Answer : Pinus, Cycas – Gymnosperms Wheat, bean – Angiosperms
Description : .In Pinus/Cycas/gymnosperms, the endosperm is (a) triploid (b) haploid (c) diploid (d) tetraploid.
Last Answer : (b) haploid
Description : Which of the following is the most correct statement about the relation between marital status and the personal social adjustment of teachers? Options: A) Empirical evidence favours the married ... married male teachers but single female teachers D) Marital status bears no relation to adjustment
Last Answer : A) Empirical evidence favours the married teacher
Description : Heterosporus means a. Spores of two different sizes and sexes b. Spores of the same sizes and sexes c. Spores which are sterile d. None of the above
Last Answer : a. Spores of two different sizes and sexes
Description : Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra
Last Answer : (c) Riccia, Dryopteris and Cycas
Description : Which one of the following statements about Cycas is incorrect? (a) It has circinate vernation. (b) Its xylem is mainly composed of xylem vessel. (c) Its roots contain some blue-green algae. (d) It does not have a well organized female flower.
Last Answer : (b) Its xylem is mainly composed of xylem vessel.
Description : In gymnosperms, the male gametes are produced in structures called
Last Answer : microsporophyll.
Description : In gymnosperms, the female gametes are produced in structures called
Last Answer : megasporophyll.
Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.
Last Answer : (d) Origin of seed habit can be traced in pteridophytes.
Description : 85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes
Last Answer : Origin of seed habit can be traced in pteridophytes
Description : Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of (a) cycads (b) conifers (c) polypetalous angiosperms (d) gamopetalous angiosperms.
Last Answer : (a) cycads
Description : how can i tell if my satsuma plum tree is male or female ?
Last Answer : Need Answer
Description : how do you tell the difference in the male and female hedge apple tree.?
Description : Explain in one word "the tree that bears fruit but does not bear flowers" ?
Last Answer : A tree that bears fruit but does not bear flowers.
Description : What is the expression of a tree that bears fruit but does not bear flowers ?
Last Answer : The tree that bears fruit , but does not bear flowers - vegetation.
Description : Suppose individuals of a species of lizard on an island can be brown, tan, or green. Suppose a volcanic eruption on the island kills all but one male and one female lizard. Both are brown, and all later generations are brown. What is this an example of?
Last Answer : A Genetic Bottleneck
Description : Transfusion tissue is present in the leaves of (a) Pinus (b) Dryopteris (c) Cycas (d) both (a) and (c).
Last Answer : (d) both (a) and (c).
Description : Cycas has two cotyledons but not included in angiosperms because of (a) naked ovules (b) seems like monocot (c) circinate ptyxis (d) compound leaves.
Last Answer : (a) naked ovules
Description : A farmer in California owns a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store owner has called the farmer to see how much fruit is available for him to purchase. The ... each twig bears one piece of fruit, how many plums will the farmer be able to deliver? -Riddles
Last Answer : None. A pear tree does not bear plums
Description : A farmer owned a beautiful pear tree. He supplies the fruit to a nearby grocery store. The store has called the farmer to see how much fruit is available for him to purchase. The farmer knows that ... each twig bears one piece of fruit, how many plums will the farmer be able to deliver? -Riddles
Last Answer : None. A pear tree does not bear plums.
Description : What is the answer to this riddle if the tree bears 12 fruits without sickle ?
Last Answer : : The answer will be: year because 12 months is the year.
Last Answer : According to Darwin's theory, the "mustard tree" bears the most fruit
Last Answer : Walnut tree bears more fruit.
Last Answer : A tree in Australia bears 23 kinds of fruit.
Description : Which of the tree bears red colour flowers? a. Erythrena subrosa b. Albizia lebbek c. Sapium sebiferum d. Thuja orientalus
Last Answer : Erythrena subrosa
Description : In human beings, the statistical probability of getting either a male or female child is 50 : 50. Give a suitable explanation. -Biology
Last Answer : If a Y bearing sperm fertilizes the egg, the zygote will be a male (XY) and when X bearing sperm fertilizes the egg, the resulting zygote will be female (XX). Since the ratio of the X chromosome ... in a male gamete is 50:50. The statistical probability of male or female infants is also 50:50.
Description : In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote? -Biology
Last Answer : The number of chromosome in the female gamete would be same as that in the male gamete, i.e., it will have 24 chromosomes. The number of chromosome in the zygote would be double the number present in the gamete and hence, it would be 48.
Description : Archegonia male or female -Biology
Description : List all homologous structure of human male and female reproductive system. -Biology
Description : Name the male and female gametophytes in flowering plants -Biology
Description : How many partner's have you had, and how many makes you offically a Slut. To both male and female?
Last Answer : In the dictionary, slut refers to women not men. It says:1) A dirty, slovenly woman. 2) An immoral or dissolute woman; prostitute.
Description : What is A plant that has both male and female reproductive structures?
Last Answer : What is the answer ?
Description : What are the reproductive organs that produce gametes in both male and female?
Last Answer : That would be the Gonads.
Description : Both of my African geese appear to be the same size. I know one of them is laying eggs. Now one of them has a thicker neck than the other.Could having a thicker neck be a way of telling difference between sexes I thought I had a male and female,don't know?
Last Answer : The difference between mature male and female African Geese You can tell mostly by the sound of their honk. The gander (male) has a high hollow (long double syllable) honk, resembling a tug boat. The ... has a larger knob above his bill. The goose has a lower abdomen that nearly drags the ground.
Description : When one plant has both male and female flowers separately, is called— (A) Monophrodits (B) Monoecious (C) Hermaphrodite (D) Apomixis
Last Answer : (B) Monoecious
Description : Monoecious plants have male and female sexes/flowers on a. Same plant b. Different plants c. Both of these d. None of these
Last Answer : Same plant
Description : When an animal has both the characters of male and female, it is called (a) super female (b) super male (c) intersex (d) gynandromorph.
Last Answer : (d) gynandromorph.
Description : Ureters act as urinogenital ducts in (a) human males (b) human females (c) both male and female frogs (d) male frogs.
Last Answer : (c) both male and female frogs
Description : Male and female cockroaches can be distinguished externally through (a) anal styles in male (b) anal cerci in female (c) anal style and antennae in females (d) both (b) and (c).
Last Answer : (a) anal styles in male
Description : Both male and female pigeons secrete milk through (a) salivary glands (b) modified sweat glands (c) crop (d) gizzard.
Last Answer : (c) crop
Description : Taenia saginata differs from Taenia solium in (a) absence of scolex hooks (b) absence of scolex hooks and uterine branching (c) absence of scolex hooks and presence of both male and female reproductive organs (d) presence of scolex hooks.
Last Answer : (a) absence of scolex hooks
Description : What is correct about Taenia? (a) Male organs occur in posterior proglottides. (b) Male organs occur in anterior proglottides. (c) Female organs occur in anterior proglottides. (d) Mature proglottides contain both male and female organs.
Last Answer : (d) Mature proglottides contain both male and female organs
Description : Select the wrong statement. (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile. (b) Chlamydomonas exhibits both isogamy and anisogamy and ... in structure, function and behaviour. (d) Anisogametes differ either in structure, function or behaviour.
Last Answer : (a) In oomycetes, female gamete is smaller and motile, while male gamete is larger and non- motile.
Description : Selection of sample in this study is an important step in doing research. A good sample is: a. One that includes both male and female nurses b. One that shows a balance in the number of ... is representative of the population from which it was selected d. One that can be manipulated and controlled
Last Answer : c. One that is representative of the population from which it was selected