Most fish and amphibians do not provide parental care, but most birds and mammals do. What...
Homework Answers
The amount of parental care and number of egg are inversely related. If an organism provide intense parental care, the number of egg will be less. If an organism provide less parental care the number of egg will be more. There are two evaluatioary strategies like r selection and k selection. In r selection the organisms produce large number of offsprings with short lifespan. Example - fish, insects, amphibians etc. r selected species are given nearly no parental care since they are larger in number. In k selection organisms produce small number of offsprings that have longer lifespan. In k selection species are given high parental care. The probabilities of attaining maturity is very high in k selected species than r selected species.
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Most fish and amphibians do not provide parental care, but most
birds and mammals do. What...
How do hagfishes and lampreys acquire their food? 6) What is the function of slime in...
How do hagfishes and lampreys acquire their food? 6) What is the function of slime in hagfishes? 7) What are the three groups of fishes? 8) Answer the following questions about chondrichthyans: a) What is their skeleton composed of? b) What do they use the lateral line system for? c) How do they acquire food from their environment? d) What are some examples? 9) Answer the following questions about ray-finned fishes: a) What is their...
Exercise: Many older classifications are not monophyletic, and do not reflect the evolutionary relationships among species....
Exercise: Many older classifications are not monophyletic, and do not reflect the evolutionary relationships among species. As an introduction to phylogenetic classification, think about the tetrapods (animals with four legs). These animals have traditionally been classified into four groups, all of the same rank: Class Amphibia (frogs, salamanders, newts, etc.) Class Reptilia (snakes, lizards, crocodiles, turtles, etc.) Class Aves (birds) Class Mammalia (mammals) Reptiles possess a common ancestor with certain extinct amphibians, the birds are derived from a group of...
please help, thank you ! метр Researchers in the Netherlands studied the effects of parental care...
please help, thank you !
метр Researchers in the Netherlands studied the effects of parental care in European Kestrels. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six chicks), and enlarged broods (seven or eight chicks). They then measured the percentage of male (bar on left) and female (bar on right) parent birds in each treatment that survived through the following winter. Both males and females provide care for chicks....
3.12 Many animals are in danger of extinction. One way to see the extent of the...
3.12 Many animals are in danger of extinction. One way to see the extent of the problem is to study the numbers of animals on the endangered species list. The following data show the numbers of endangered species for various groups of animals. The count is the total number of endangered species within the group. Thus, there are 37 mammals on the en- dangered species list within the United States and 249 others in the rest of the world. United...
in 250 words explain why do you think answer A is the most ethical?! what do...
in
250 words explain why do you think answer A is the most ethical?!
what do you think about the right to health care?
A. I agree with Dr. Miller. We need to provide a clear minimum of health care to everyone, and the Affordable Care Act is a step in the right direction, even if it doesn't provide the ultimate solution. Setting the parameters for that minimum is complex and will require a lot of work, but providing care...
- Fish Three different Classification schemes - Frog Scheme I Amphibia Mammalia Reptilia Aves Included groups...
- Fish Three different Classification schemes - Frog Scheme I Amphibia Mammalia Reptilia Aves Included groups Frogs, Salamanders Mammals Lizards, crocodiles Birds Salassader Manuals Scheme II Ainphibia Mammalia Reptilia Ineladed groups Frogs, Salamanders Mammals Lizards, crocodiles, birds Lizard - Crocodile Scheme III Included groups Amphibia Frogs. Salamanders Homothenins* Mammals, birds Reptilia Lizards, crocodiles *Mammals & birds both maintain body temperature. Bird This phylogeny represents our current hypothesis for the relationship of some key groups of chordates. Use it and the...
There is an unwritten rule in healthcare, that healthcare providers should not provide medical care to...
There is an unwritten rule in healthcare, that healthcare providers should not provide medical care to family members. Why do you think that rule exists? Explain your answer.
in the treee below, assume the most recent common ancestor to all the animals listed had...
in the treee below, assume the most recent common ancestor to
all the animals listed had a long tail, ears, external testes, and
fixed claws. based on the info in the tree, what traits does a seal
have? (picture below)
Select all the ways animals are different from plants. animals are heterotrophs animals are autotrophs animals have sexual reproduction animals are mostly mobile at some life stage QUESTION 2 In the tree below, assume the most recent common ancestor to...
28.What is the definition of a gene pool? a. All alleles that exists in a population...
28.What is the definition of a gene pool? a. All alleles that exists in a population b. relative amount of each allele c. A few alleles that exists in a population d. Alternative versions of the same gene e. allele that is specific for a protein 29. Explain what is the Biological Species concept and its limitations. 30. T/F: An organism's fitness depends on their environment 31. Explain how the Sonoran Pocket Mice are a good example of Natural Selection....
1. Explain how animal respiratory organs have evolved to increase diffusion rates by manipulating these variables;...
1. Explain how animal respiratory organs have evolved to increase diffusion rates by manipulating these variables; distance of diffusion, concentration gradient and area for diffusion. B) For each variable, provide- and explain- an example of an animal that has maximized it the most. Use a different animal group for each example. 2. Explain how pH and temperature affect the loading of oxygen in the lungs and its unloading in the tissues. 3. Compare the advantage and disadvantages of A )...
Exercise: Many older classifications are not monophyletic, and do not reflect the evolutionary relationships among species. As an introduction to phylogenetic classification, think about the tetrapods (animals with four legs). These animals have traditionally been classified into four groups, all of the same rank: Class Amphibia (frogs, salamanders, newts, etc.) Class Reptilia (snakes, lizards, crocodiles, turtles, etc.) Class Aves (birds) Class Mammalia (mammals) Reptiles possess a common ancestor with certain extinct amphibians, the birds are derived from a group of...
please help, thank you !
метр Researchers in the Netherlands studied the effects of parental care in European Kestrels. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six chicks), and enlarged broods (seven or eight chicks). They then measured the percentage of male (bar on left) and female (bar on right) parent birds in each treatment that survived through the following winter. Both males and females provide care for chicks....
3.12 Many animals are in danger of extinction. One way to see the extent of the problem is to study the numbers of animals on the endangered species list. The following data show the numbers of endangered species for various groups of animals. The count is the total number of endangered species within the group. Thus, there are 37 mammals on the en- dangered species list within the United States and 249 others in the rest of the world. United...
in
250 words explain why do you think answer A is the most ethical?!
what do you think about the right to health care?
A. I agree with Dr. Miller. We need to provide a clear minimum of health care to everyone, and the Affordable Care Act is a step in the right direction, even if it doesn't provide the ultimate solution. Setting the parameters for that minimum is complex and will require a lot of work, but providing care...
- Fish Three different Classification schemes - Frog Scheme I Amphibia Mammalia Reptilia Aves Included groups Frogs, Salamanders Mammals Lizards, crocodiles Birds Salassader Manuals Scheme II Ainphibia Mammalia Reptilia Ineladed groups Frogs, Salamanders Mammals Lizards, crocodiles, birds Lizard - Crocodile Scheme III Included groups Amphibia Frogs. Salamanders Homothenins* Mammals, birds Reptilia Lizards, crocodiles *Mammals & birds both maintain body temperature. Bird This phylogeny represents our current hypothesis for the relationship of some key groups of chordates. Use it and the...
in the treee below, assume the most recent common ancestor to
all the animals listed had a long tail, ears, external testes, and
fixed claws. based on the info in the tree, what traits does a seal
have? (picture below)
Select all the ways animals are different from plants. animals are heterotrophs animals are autotrophs animals have sexual reproduction animals are mostly mobile at some life stage QUESTION 2 In the tree below, assume the most recent common ancestor to...
28.What is the definition of a gene pool? a. All alleles that exists in a population b. relative amount of each allele c. A few alleles that exists in a population d. Alternative versions of the same gene e. allele that is specific for a protein 29. Explain what is the Biological Species concept and its limitations. 30. T/F: An organism's fitness depends on their environment 31. Explain how the Sonoran Pocket Mice are a good example of Natural Selection....
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