Why are some lice able to survive permethrin treatments whereas others Cannot survive quizlet?
What function is performed by nematode presenilins? They are responsible for altering other proteins by cleaving them. Why are some lice able to survive permethrin treatments whereas others cannot survive? Some lice are naturally resistant due to genetic variation.
What change is an example of biological evolution?
Over many generations, ostriches and emus evolved to have larger bodies and feet made for running on land, which left them without the ability (or need) to fly. The same goes for penguins, who traded typical wings for swim-friendly flippers over many thousands of generations.
What inference about the genetic material for all living things would support both the theory of common descent and the theory of natural selection?
What inference about the genetic material for all living things would support both the theory of common descent and the theory of natural selection? It must vary spontaneously and randomly. True or false: Natural selection is only one of several possible causes of evolution.
What characteristics would determine whether structures from two kinds of organisms are homologous?
What characteristics would determine whether structures from two kinds of organisms are homologous? The structures should have identical functions in both organisms.
What is a characteristic that makes an organism able to survive and reproduce in its environment?
To scientists, an adaptation is any characteristic that helps an organism survive or reproduce. Adaptations can be physical as well as behavioral. Most adaptations happen slowly—they are traits that are inherited over many generations.
What makes studying biological evolution essential?
Understanding evolution helps us solve biological problems that impact our lives. There are excellent examples of this in the field of medicine. To stay one step ahead of pathogenic diseases, researchers must understand the evolutionary patterns of disease-causing organisms.
What determines which individuals are more likely to survive and reproduce?
According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
How would natural selection progress in lice no longer controlled permethrin?
How would natural selection progress in lice no longer controlled by permethrin? Some lice are resistant to permethrin; permethrin is used to kill lice; lice resistant to permethrin become the most common type.
How does genetic evidence support evolution?
Genetic evidence supports evolution. When organisms reproduce, they pass on their genetic material to their offspring. DNA contains a code that a cell uses to put together all the materials it needs to function properly. The code is made up of four different chemical subunits called bases.
What do these structures indicate about the evolution of the three organisms?
What do these structures indicate about the evolution of the three organisms? They share a common ancestor. What would be an example of a structure analogous to structure C?
Which is most likely true about two organisms with similar anatomical features?
Which is most likely true about two organisms with similar anatomical features? They are not related.
What is the importance of the traits of an organism in constructing a phylogenetic tree and Cladograms?
Derived traits shared among the species or other groups in a dataset are key to helping us build trees. As shown above, shared derived traits tend to form nested patterns that provide information about when branching events occurred in the evolution of the species.
What happens when a prion is misfolded?
A misfolded prion is able to cause normal prions to misfold, and this continues until the host cell bursts, spreading the infection to other cells. Bacteria reproduce by a process known as. binary fission. All the following have contributed to widespread antibiotic resistance EXCEPT.
Can HIV cause pneumonia?
Individuals with HIV sometimes contract a pneumonia infection that's rare in the rest of the population because people with HIV. are unable to fight off these pneumonia-causing organisms. All the following are important elements that comprise humoral immunity EXCEPT. cytotoxic T cells.
What are presenilin proteins?
The human presenilin proteins that are made from these genes are responsible for altering other proteins by cleaving (cutting) them at specific positions. Presenilin proteins that are highly similar to the human ones have been identified in C. elegans, a microscopic nematode worm.
What is the gene that controls cell growth?
True. The genes responsible for controlling cell growth, DNA replication, and cell division (mitosis) are highly similar in organisms ranging from single-celled yeast to complex humans. The protein made from one of these genes, cyclin B, has been extensively studied in yeast and shown to be specifically responsible for controlling the timing ...
What is the DNA sequence of bacteria?
DNA sequences from bacteria can be transferred to plants and other organisms. The genes responsible for controlling cell growth, DNA replication, and cell division (mitosis) are highly similar in organisms ranging from single-celled yeast to complex humans. The protein made from one of these genes, cyclin B, has been extensively studied in yeast ...
Is a donkey a member of the same species?
a. fat accumulation, insulin resistance, metabolic syndrome. True or false: According to the biological species concept, horses and donkeys could be considered members of the same species because they can mate and produce healthy, albeit infertile, offspring.