MARINE BIOLOGY
MARINE BIOLOGY
11th Edition
ISBN: 9781259880032
Author: CASTRO
Publisher: RENT MCG
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Chapter 13, Problem 1CT
Summary Introduction

To determine: The kind of bottom features that might be involved to influence the settlement and metamorphosis of planktonic larvae.

Introduction: Metamorphosis is the process of development of an organism after the birth. This process involves the change in the structure of the animal body through cell growth and differentiation. Metamorphosis is the process that extends from an egg stage to the adult stage. The complete metamorphosis occurs in four stages including egg, larva, pupa, and adult.

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Explanation of Solution

Metamorphosis is triggered by several physical, chemical, and biological factors.

The factors (physical, chemical, and biological factors) that influence the settlement and metamorphosis of planktonic larvae are given as follows:

  • General type of bottom (rock, mud, sand).
  • Size of particles (if mud or sand).
  • Tridimensional part of rocky bottom (presence of crevices).
  • Amount of dissolved oxygen in between sediment particles.
  • Presence of hydrogen sulfide.
  • Chemical composition of the substrate.
  • Water temperature.
  • Salinity.
  • Currents.
  • Sunlight.

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✓ Details Draw a protein that is embedded in a membrane (a transmembrane protein), label the lipid bilayer and the protein. Identify the areas of the lipid bilayer that are hydrophobic and hydrophilic. Draw a membrane with two transporters: a proton pump transporter that uses ATP to generate a proton gradient, and a second transporter that moves glucose by secondary active transport (cartoon-like is ok). It will be important to show protons moving in the correct direction, and that the transporter that is powered by secondary active transport is logically related to the proton pump.
drawing chemical structure of ATP. please draw in and label whats asked. Thank you.
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