{"id":196179,"date":"2025-03-03T06:22:30","date_gmt":"2025-03-03T06:22:30","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=196179"},"modified":"2025-03-03T06:22:32","modified_gmt":"2025-03-03T06:22:32","slug":"use-the-survivorship-curves-a-b-and-c-shown-on-the-graph-below-to-answer-the-following-three-questions","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/03\/use-the-survivorship-curves-a-b-and-c-shown-on-the-graph-below-to-answer-the-following-three-questions\/","title":{"rendered":"Use the survivorship curves (A, B, and C) shown on the graph below to answer the following three questions"},"content":{"rendered":"\n

Use the survivorship curves (A, B, and C) shown on the graph below to answer the following three questions. kx A B ? Age <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Which curve best describes survivorship in clams? (Clams have external fertilization and free-swimming larval stages.) Curve A Which curve best describes survivorship in mice? Curve C Which curve best describes survivorship in a species, such as humans, that invests a great deal in caring for the young over a very long period of time? Curve B<\/p>\n\n\n\n

The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n

Correct Answer:<\/h3>\n\n\n\n
    \n
  1. Which curve best describes survivorship in clams?<\/strong>
    Curve A<\/strong><\/li>\n\n\n\n
  2. Which curve best describes survivorship in mice?<\/strong>
    Curve C<\/strong><\/li>\n\n\n\n
  3. Which curve best describes survivorship in a species, such as humans, that invests a great deal in caring for the young over a very long period of time?<\/strong>
    Curve B<\/strong><\/li>\n<\/ol>\n\n\n\n

    Explanation:<\/h3>\n\n\n\n

    Survivorship curves represent the number of individuals surviving at each age interval in a population. There are three main types of survivorship curves: Type I<\/strong>, Type II<\/strong>, and Type III<\/strong>, which correspond to Curve B<\/strong>, Curve C<\/strong>, and Curve A<\/strong>, respectively.<\/p>\n\n\n\n

      \n
    1. Clams (Curve A – Type III Survivorship)<\/strong>:
      Clams are a prime example of a species that follows Type III<\/strong> survivorship. Species exhibiting this curve typically produce a large number of offspring, but most of them die young. This occurs because, during their early stages (such as larvae), they face high predation rates. However, the few that survive through their early years tend to live much longer. Clams, with external fertilization and free-swimming larval stages, produce large quantities of offspring, but many are lost early in life due to environmental factors or predation.<\/li>\n\n\n\n
    2. Mice (Curve C – Type II Survivorship)<\/strong>:
      Mice exhibit Type II<\/strong> survivorship, which is represented by Curve C<\/strong>. This type of curve is characterized by a relatively constant mortality rate throughout an individual’s life, meaning that individuals have an equal chance of dying at any age. While some young mice may face risks (like predation), mice have fewer offspring than species with Type III curves and do not invest as much in each individual offspring, so their survival rates remain fairly steady across their lifespan.<\/li>\n\n\n\n
    3. Humans (Curve B – Type I Survivorship)<\/strong>:
      Humans, like many other large mammals, exhibit Type I<\/strong> survivorship, represented by Curve B<\/strong>. These species tend to have low mortality rates in early and middle life, with most individuals living to old age. Humans invest heavily in the care and nurturing of their young, with extended parental care that supports the survival of offspring over a long period. As a result, the death rate increases significantly only in later years.<\/li>\n<\/ol>\n\n\n\n

      I’ll now generate an image to illustrate these curves.<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      Here is the graph illustrating the three different survivorship curves (A, B, and C) that correspond to the different types of survivorship in species. Each curve represents different patterns of survival based on reproductive strategies and care for offspring:<\/p>\n\n\n\n

        \n
      • Curve A (Type III)<\/strong>: High juvenile mortality with a few surviving to adulthood.<\/li>\n\n\n\n
      • Curve B (Type I)<\/strong>: High survival rates in early and middle life with a sharp increase in mortality at older ages.<\/li>\n\n\n\n
      • Curve C (Type II)<\/strong>: Constant mortality rate throughout the life span.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        Use the survivorship curves (A, B, and C) shown on the graph below to answer the following three questions. kx A B ? Age Which curve best describes survivorship in clams? (Clams have external fertilization and free-swimming larval stages.) Curve A Which curve best describes survivorship in mice? Curve C Which curve best describes survivorship […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-196179","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=196179"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196179\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=196179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=196179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=196179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}