discuss K-selected and R-selected species. Provide a comparison of the two types of organisms in the...
Homework Answers
Question
K and R selected stratgeies are two types of evolutionary strategies which are used by two different type of species to survive in given environmental conditions.
Comparison of these two strategies :
| R - selected species | K-selected species |
| Produce many offspring | produce less offspring |
| Lifespan is short , usually small size organism | lifespan is long, usually large size organism |
| These species are weak competitors | These species are strong competitors |
| Tedencies for immigration and emigration is high | Tendicies for immigration and emigration is low |
| They could live in variable environment | They could only live in constant and predictable environmental conditions. |
| High mortality rates | Low mortality rates |
| Example include rabbits, bacteria, mice | Example include elephants, tortoises |
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discuss K-selected and R-selected species. Provide a comparison of
the two types of organisms in the...
2. Pkovide an example of a K-selected and an r-selected species. How does each species type...
2. Pkovide an example of a K-selected and an r-selected species. How does each species type contribute to 30. With intermediate levels of disturbance, who gets the advantage (K-or r-selected)? -think of what happens after biodiversity? a low fuel burning fire.
Question 28 (2 points) Match the following descriptions to the proper species types (K or r...
Question 28 (2 points) Match the following descriptions to the proper species types (K or r selected). Question 28 options: 12 Elephants would be an example 12 Dandelions would be an example 12 You would find these in unpredictable environments 12 They have a large number of small offspring 12 These have few, large offspring, a long gestation period, and often give long-term care to their offspring 1. K selected species 2. r selected species
1. Would you expect early successional species to be r-selected or K-selected? 2. Why? 3. ?What...
1. Would you expect early
successional species to be r-selected or K-selected?
2. Why?
3. ?What about species that dominate later in succession? Would
you expect them to be r-selected or K-selected?
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Question 1: Homeostasis, Common Ancestry, and Divergence a) One problem that all respiring organisms share is...
Question 1: Homeostasis, Common Ancestry, and
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a) One problem that all respiring organisms share is the
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oxygen and removal of carbon dioxide. Two types of structures that
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2. Pkovide an example of a K-selected and an r-selected species. How does each species type contribute to 30. With intermediate levels of disturbance, who gets the advantage (K-or r-selected)? -think of what happens after biodiversity? a low fuel burning fire.
1. Would you expect early
successional species to be r-selected or K-selected?
2. Why?
3. ?What about species that dominate later in succession? Would
you expect them to be r-selected or K-selected?
You cannot see the individual modules in these photos. You may encounter some unitary organisms. Tube-dwelling worms collect particles on a retractable crown of tentacles. The mouth is in the center of the tentacle crown. The animal on the left has a flexible tube (sec arrow on left)...
DW 3. Discuss the term variation. Provide examples of variations on a particular species. Variation des differef Charolins les 11 4 Describe what is meant by competition among organisms. What do organisms antropole an calample of one is made Thom. Proster live longer compete for? Why? move 5. Explain the term adaptation. Provide an example of an adaptation in an organism. Adaptson means conditions, thitta determined which organisasi a Series Sure COP k evarirarenal Cind! 05. TODE á Darwin believed...
From the list below, choose two organisms or cell types and discuss what makes them unique compared to the cells you have observed in your lab. You will need to use all your available resources in order to find information about these cells. Please limit your responses to one paragraph each. You must choose one prokaryote and one eukaryote. List Prokaryotes: Acinetobacter baumannii Paenibacillus polymyxa Spirilum vultans Eukaryotes: Valonia ventricosa Pyramidal neuron Erythrocyte
Question 1: Homeostasis, Common Ancestry, and
Divergence
a) One problem that all respiring organisms share is the
need for biological structures that allow efficient uptake of
oxygen and removal of carbon dioxide. Two types of structures that
have evolved for carrying out gas exchange are gills and lungs. The
table below lists organisms according to the type of structure they
use for gas exchange.
Describe the general process of gas exchange that occurs
between a gill or lung and the...
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