Select the correct phrases: (Prezygotic barriers / Postzygotic barriers) are reproductive isolating mechanisms that occur after a zygote has been formed. An example would be (an infertile hybrid / gametes that cannot fuse).

Q: Name four reproductive barriers and indicate whethereach is pre- or post-zygotic.

A: Reproductive barriers are a collection of mechanisms and physiological processes that prevents two…

Q: Define the following terms related to alterations of generations: a.Gametes b.Zygote

A: Plants, algae, and fungus all have "alterations of generations". This is analogous to sexual…

Q: From an evolutionary standpoint, why is sexual reproduction advantageous for the continuation of a…

A: Sexual reproduction is characterized by the production of the own kind by the fertilization of the…

Q: Make a dichotomous key. It should be in bracket type

A: Bracket Key: The most commonly used key by the taxonomists is the bracket key. This key has the…

Q: reproduction. Use the descriptions of the following species to predict what system of…

A: protogynous hermaphrodite * These are the animals that are females but they change their sex to male…

Q: Which of the following statements supports the endosymbiosis theory (select all that apply)…

A: The dominant evolutionary explanation for the formation of eukaryotic cells from prokaryotic…

Q: Dioecious plants: have two kinds of flowers that open at different times on the same plant are…

A: There are two types of plants: monoecious and dioecious. The monoecious plants have both male and…

Q: Volvox carteri, an volvocine alga, has approximately 2000 somatic cells and only 16 reproductive or…

A: Multicellular individuals with a germ line vs. somatic cell line differentiation only evolved a…

Q: Which of the following IS TRUE about sexual dimorphism

A: Sexual dimorphism refers to morphological differences between men and women, but it can also refer…

Q: Select all the true statements about the cell in the drawing. Group of answer choices -this cell is…

A: A eukaryotic organism is any organism with complex cells, or a single cell with a complex structure.…

Q: Which of the following steps of sea urchin fertilization initiates the formation of the…

A: Fertilization is the union of male ( spermatozoa ) and female ( ovum ) gametes which results in the…

Q: Which of the following is true regarding Lyonization?   Question options:   Involves the…

A: Chromosomes are observed in the cell's nucleus and contain the genetic material of the cell. In…

Q: Figure 2b and 2e as compared to Figure 2c and 2f, how did spore production correlate with the…

A: Daphnia is a planktonic crustaceans belonging to the order Cladocera. They are commonly known as…

Q: Which of the following statements accurately describes the "alternation of generations." The…

A: The alternation of generation is very important characteristics within the plant kingdom. All plants…

Q: reproduce sexually in a dry environment. Explain

A: Sexual reproduction is a process in which meiosis occurs where haploid gametes are formed. These…

Q: Environmental stability favors asexual reproduction. Group of answer choices True False

A: Reproduction is a phenomenon in which one organism gives rise to another organism.  It is an…

Q: Which of the following is the most defensible stațement to make about the role of haplodiploidy in…

A: The correct answer is-  haplodiploidy is the primary factor responsible for sterile castes in ants,…

Q: The following image is of a freshwater Hydra sp. (Hydrozoa). Select ALL correct statements below. A…

A: Animal kingdom comprises of all eukaryotic organisms . It is classified into:-  (I ) Porifera…

Q: Define apomixis.

A: It is a type of asexual reproduction in formation of seeds without fertilization.here the genotype…

Q: Which one of the following entries describes the relationship between sister chromatids? Contain…

A: Ans 1. -Contain the same genes, but may be different alleles.

Q: As described in the Biology and Society section, some species (including some endangered species)…

A: drawbacks might a parthenogenesis program have on the well-being of the species it targets are :

Q: give one species that is classified or exhibit the following: sex-role reversal show a photograph…

A: The sex role reversal is the mechanism in which  sexual selection among females is much higher than…

Q: 1. Semelparous life history 2. Iterous species 3. Senescence 4. Antagonistic pleiotropy 5. Carrying…

A: here we need to give definition of various Semelparous and Iteroparous Life histories. Living…

Q: Alternation of generation refers to

A: The alternation of generations in the life cycle of an organism is defined as the alternating of…

Q: Identify two organisms that appear similar but have two different mechanisms of sex determination.…

A: Animals with two distinctive sex chromosomes are of heterogametic sex, and they are subsequently…

Q: Animal Life Cycle Plant Life Cycle Zygote Zygote Diploid adult Diploid adult Spores Gametes Haploid…

A: The number of whole sets of chromosomes that make up a cell is known as its ploidy. Their paternal…

Q: The breakdown of the life cycle of a blowfly is: Group of answer choices Emergence of fly, pupation,…

A:

Q: Identify two organisms that appear similar but have two different mechanisms of sex determination.…

A: The sex determination refers to the establishment of maleness and femaleness in an organism at the…

Q: Place the stages of the fruit fly life cycle in the correct order. Rank the options below. Adult…

A: life cycle of fruit fly in order:fertilized eggfirst instar larvaesecond instar larvaethird instar…

Q: In a sponge, reproduction is: Individuals have both male and female reproductive systems. a. O b.…

A: sponges comes under phylum porifera , these are asymmetrical , multicellular pore bearing animals .

Q: In the life cycle of an animal, __________ are haploid and _________ are diploid gametes/ sex cells…

A: Cell division is the process in which a parent cell divides into two or more daughter cells. There…

Q: Which structures shown above are typically haploid? lect one: A. Plant spores and animal zygotes B.…

A: Haploid cells are those cells which contain only one set of chromosomes. These structures are…

Q: which one is right? (Prezygotic barriers / Postzygotic barriers) are reproductive isolating…

A: Reproductive isolation: The mechanism that prevents species from mating with one another. There are…

Q: What taxa employs each of these modes of reproduction: 1. Recombinational 2. Primordial 3. Typical…

A: Reproduction:  The process of production of new offspring from the parental ones is termed…

Q: for clarification which is shown in the graph, the darker blue on the bar graph shows the mass(size)…

A: On the basis of the given bar graph, It will be conclude that-------- Describe the relationship…

Q: What is the Red Queen Dynamic?  Using the snail example, explain why different parasite and host…

A: The Red Queen Dynamic emphasizes the significance of evolution as well as adaptation in creating the…

Q: The embryo found in the mosses, ferns, pines, and flowering plants is; Haploid Diploid Neither

A: Embryo  It is early stage of development of a multicellular organisms.

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.