CAMPBELL BIO LL BUNDLE W/ACCESS
1st Edition
ISBN: 9781323889008
Author: Urry
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 47.2, Problem 2CC
WHAT IF? → Predict what would happen if Ca2+ was injected into an unfertilized sea urchin egg.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q28: Please type the answer to this question
Some salamanders exhibit neoteny, becoming sexually mature while still retaining some larval characteristics. In some species, the neotenic characteristics have become a permanent state of the species (obligate neoteny = paedogenesis; both are called paedomorphic conditions). These have lost the ability to undergo complete metamorphosis (hellbender, amphiuma, and mudpuppy). In others, the animal does not undergo complete metamorphosis in nature, but can be induced to do so in the lab. An example of this is the Mexican axolotl (Ambystoma mexicanum), a large gilled salamander found in Mexico. In some species of salamanders, members of a population exhibit neoteny only when they are under stressful environmental conditions (such as crowding, scarce food, low concentrations of trace elements). This is called facultative neoteny. Tiger Salamanders (Ambvstoma tigrinum) frequently do this, but local populations of marbled salamanders show a…
MAKE CONNECTIONS Explain how the molluscanfoot in gastropods and the excurrent siphon incephalopods represent examples of descent withmodification (see Concept 22.2).
Yes or no?
Fluorophores : reemit light at specific wavelength.
For nextgen RNA sequencing the rna extracted from samples must undergo reverse transcription.
Can planarians relroduce sexually and asexually? Does asexual regenerate only?
Chapter 47 Solutions
CAMPBELL BIO LL BUNDLE W/ACCESS
Ch. 47.1 - How does the fertilization envelope form in sea...Ch. 47.1 - Prob. 2CCCh. 47.1 - MAKE CONNECTIONS Review Figure 12.16 on cell...Ch. 47.2 - In the frog embryo, convergent extension elongates...Ch. 47.2 - WHAT IF? Predict what would happen if Ca2+ was...Ch. 47.2 - MAKE CONNECTIONS Unlike some other types of birth...Ch. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 3CCCh. 47.3 - Prob. 4CC
Ch. 47 - What cell-surface event would likely fail if a...Ch. 47 - What are some functions of apoptosis in...Ch. 47 - Suppose you found two classes of mouse mutations,...Ch. 47 - Prob. 1TYUCh. 47 - Which of the following is common to the...Ch. 47 - The archenteron develops into a. the mesoderm. b....Ch. 47 - What structural adaptation in chickens allows them...Ch. 47 - Prob. 5TYUCh. 47 - In humans, identical twins are possible because a....Ch. 47 - Cells transplanted from the neural tube of a frog...Ch. 47 - DRAW IT Each blue circle in the figure below...Ch. 47 - EVOLUTION CONNECTION Evolution in insects and...Ch. 47 - Prob. 10TYUCh. 47 - Prob. 11TYUCh. 47 - Prob. 12TYUCh. 47 - SYNTHESIZE YOUR KNOWLEDGE Occasionally, two-headed...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- VISUALIZE Describe the action taking place at each of the numbered steps in the figure.arrow_forwardVISUALIZE Label the following diagram and explain what this diagram illustrates.arrow_forwardQ1 Which ONE of the following is a correct statement about normal mammalian cells? a) At resting membrane potential, approximately the same number of Na* and K+ channels are open b) At resting membrane potential, there is an electrical gradient for Na+ to move out of the cell c) Clions are usually at higher concentration in the intracellular fluid than the extracellular fluid d) Na*/K* ATPase pumps move K* ions into the intracellular fluid e) Only excitable (nerve and muscle) cells have a resting membrane potentialarrow_forward
- MAKE CONNECTIONS What are the shared anddistinct functions of the uterus of an insect and theovary of a flowering plant? (See Figure 38.6.)arrow_forwardQ5/ What is positive feedback mechanism, and provide an example that illustrates this mechanism.arrow_forwardMature Medusa 1. Look at the life cycle diagram of a jellyfish species on the right. Immature Medusa a) Indicate which type of reproduction (asexual or sexual) takes place at each of the four stages indicated on the diagram. Explain how you can tell. Fertilised Egg 4 1 Blastula b) What are the advantages of having Medusa Planula - Bud Larva both asexual and sexual reproductive capabilities? c) Under which circumstances do many organisms, such as rotifers and single-celled plankton, switch from asexual to sexual 3 Colony Polyp Bud Polyp reproduction? Why? Frustule Bud Frustule Larvaarrow_forward
- INTERPRET DATA Compare the two graphs in Figure 1-17. What information does the second graph illustrate? What possible explanation can you give for the differences shown in the two graphs? (a) Number of chimpanzees who successfully employed specific method of tool use. (b) Number of chimpanzees who successfully employed learned method of tool use two months later. Figure 1-17 An experiment testing learning in chimpanzee populations In the photo, wild chimpanzees are shown observing a member of their group using a tool.arrow_forwardDiscuss Concepts In integrated pest management, a farmer uses a variety of tools to combat unwanted insects. These include applications of either hormones or hormone-inhibiting compounds to prevent insects from reproducing successfully. How might each of these hormone-based approaches disrupt reproduction?arrow_forwardWHAT IF? Suppose that a snake handler bitten by aparticular venomous snake species was treated withantivenin. Why might the same treatment for a secondsuch bite have a harmful side effect?arrow_forward
- Apply Evolutionary Thinking When a biologist first tested a new pesticide on a population of insects, she found that only 1% of the insects survived their exposure to the poison. She allowed the survivors to reproduce and discovered that 10% of the offspring survived exposure to the same concentration of pesticide. One generation later, 50% of the insects survived this experimental treatment. What is a likely explanation for the increasing survival rate of these insects over time?arrow_forwardWHAT IF? Because the transplant caused the recipient tissue to becomesomething it would not have otherwise, a signal must have passed from thedorsal lip. If you identified a protein candidate for the signaling molecule,how would injecting it into ventral cells of a gastrula test its function?arrow_forward14. Nematode Life Cycle Matching: Match each of the descriptions below with the correct nematode worm species (A-D). Note that some descriptions may not apply to any of the 4 species (in which case just write “none") and some descriptions may apply to multiple worms species (in which case write the letters of all applicable species). (A) Dirofilaria (heartworms) (B) Dracunculus (Guinea worm) (C) Ascaris (D) Hookworms 1. Life cycle includes only a single host 2. The infective stage is a free-living larva that can enter the skin directly 3. On target to become the first parasite-caused human disease to be eradicated 4. Has an arthropod intermediate host 5. Traditional treatment involves winding the female worm around a matchstick 6. Infections can be prevented by not defecating on soill improving sanitation of soil 7. Female lays eggs around the anus of the host 8. Produce microfilaria that circulate in the blood 9. Has multiple larval stages and a snail intermediate host 10. Migrate…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY