The symbiotic relationship between sea slug and algae is mutualism because both have benefited with each other. This is an astonishing case of symbiosis since it is intracellular. The algae’s cell composition is ruin when it will integrate into the sea slug’s skin, but still the algae stay usable for several months. The algae acquired protection, but the sea slugs benefited more with this relationship.
The sea slug Elysia chlorotica forms a mutualistic relationship with algae where it incorporates algae's chloroplasts to photosynthesize, benefiting both organisms.
The symbiotic relationship between the sea slug, specifically Elysia chlorotica, and algae is an intriguing example of mutualism. In this relationship, the sea slug assimilates chloroplasts from the algae into its own cells through a process known as kleptoplasty. These chloroplasts continue to function within the sea slug's cells, allowing the slug to photosynthesize like a plant.
This is beneficial for the sea slug as it can obtain energy directly from sunlight, while it is suggested that the algae may receive some advantage although what that might be is not well understood. This type of mutually beneficial symbiosis is essential for various ecosystems and highlights the complex interactions between species.
It is somewhat similar to more well-known symbiotic relationships, such as the mutualism observed between corals and their zooxanthellae algae, where corals receive nutrients from the algae in exchange for a protected environment.
17) Compare the three scenarios below. Which scenario would natural selection most likely work?
A) An island with lizards that all look alike and are all eating the same food.
B) A population of salmon with different skin colors that attract mates.
C) A population of parakeets that have the same sized beak.
20) A new species of penguins is created, which of the following could cause this to happen?
A) An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce.
B) A new predator moved into the environment lowering the number of the overall population of the penguins.
C) A sudden warming began melting the ice in the region causing the penguins to migrate further north.
21) Variation in a trait is a required condition for natural selection to act on a population for that trait. Assuming a population of organisms started with only one form of a trait, what is one way variation in the trait be introduced into the population?
A) Mutations
B) Fossils
C) There is no way to add variation to the population.
Answer 17: B). A population of salmon with different skin colors that attract mates.
The natural selection is a phenomena of differential survival and reproduction, the organisms that have better phenotypic trait are likely to survive and reproduce in the adverse environment. The population of salmon with different skin colors that attract the mates is the most likely scenario of natural selection because in the competition among members of the salmon in order to obtain their mates. The members that have a better phenotypic trait that is a color which is being more attractive for members of the opposite sex, likely to get the mate and reproduce.
20: A) An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce.
Speciation is a natural phenomena in which a new species is formed from the existing parent species when some of the members of the population of the species get separated by geographic, behavioral and biological barriers. Such individuals because of these barriers do not inbreed resulting in the condition of reproductive isolation.
An earthquake has happened to divide some arctic land and over time one penguin species became two different species that could no longer mate and reproduce is an example of the speciation in the penguin population. The division of the land because of the earthquakes will separate the penguin population in two distinct lands. The separated land populations will evolve new traits and will be developed as new species.
21: A). Mutations
A mutation is a alteration or a change that occurs at either at a single base or the entire genome of the organism. This change brings the variation in the trait or particular characteristic of the organism. These variations can be transmitted to the population by sexual mode or reproduction and inheritance.
In most plant-pollinator interactions, plants species are pollinated by
Answer:A E
Explanation:
the concentration of proteins synthesized in the breast is more affected by the _____.
Identify the vessels corresponding to the letters A-D on the graph above
In the part of the graph labeled A, the vessels involved are the Arterioles.
During systemic circulation, the blood leaves the left ventricle into the Aorta. The Aorta supplies the Arteries from where the blood travels through the Arteries into the Arterioles.The vessel in label B is the veins. From the capillaries to the veins, the blood flows under lower pressure than the previous vessels and into the vena cava.
From the Vena Cava, the blood moves back into the right ventricle as the pressure ups slightly. When the blood gets to the right ventricle, the pulmonary system has started and the systemic circulation has ended. Then the blood moves into the Lungs (Label C) from the pulmonary arteries. In the lungs the blood is re-oxygenated.
From the lungs, the rich oxygenated blood is pumped through Label D - the Left Ventricles into all other tissues in the body.
In summary, the labels are as follow:
A. Arterioles.
B. Veins
C. Pulmonary Arteries
D. Left Ventricles
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Which processes lead to most genetic variation in sexually reproducing organisms? select all that apply. select all that apply. crossing over independent orientation of chromosomes in meiosis random fertilization cytokinesis submitprevious answersrequest answer?
Answer:
The correct answer is crossing over.
Explanation:
Genetic variation in organisms is the basis of diversity of organisms on this planet.
This genetic variation in organisms happens during the time of gamete formation in meiosis where the exchange of chromosome takes place in pachytene stage of prophase I. This exchange of segment is called recombination which produces a unique combination of the allele.
Thus, crossing over is the correct option.
Which of the following characteristics of living things explains why plants bend and grow towards a light source?
A)they are made of one or more cells
B)the respond to stimulli
C)they reproduce
D)they maintain homeostasis
Answer:
b
Explanation:
Veterinary scientists argue that for livestock, poisoning from plants often happens because of poor herd management.
a. True
b. False
Answer: True
Most livestock poisoning by plants often happens due to poor herd management. The poisoning is usually associated with lack of forage due to range conditions such as drought that leads to starvation, cold and other incidences that can influence an animal where it will eat too much of vegetation including those poisonous plants. Additionally, this could result to disruptive harvesting of livestock in rangeland and pastures, making it unprofitable.
From where do chemotrophs get energy?
food is the answer hope it helps.
How a population changes in size during a specific period of time is called the _____?
____________ is the process of taking material into the cell by means of infoldings of the cell membrane.
a.diffusion
b.endocytosis
c.exocytosis
d.infiltration
Banded iron formations in marine sediments provide evidence of
Biotic factors of an ecosystem could include which of the following? A. the quantity of water available B. all animal populations C. all types of plants D.the temperature range
A client sustains a vertebral fracture at the t1 level and is admitted to the emergency department. during a detailed neurologic assessment, the nurse expects to identify which clinical manifestation? difficulty breathing inability to move the lower arms normal biceps reflexes in the arms loss of pain sensation in the hands
In your own words, explain how cladograms provide reliable information about the evolution of organisms based on adaptations.
Answer: Cladogram can be defined as the diagram in which the cladistics shows the relationships among organisms.
It is different from an evolutionary tree as it does not shows how the species are related to their ancestors.
It uses a line that turns into different branches in different directions ending at a clade, which shows a group of organisms with last common ancestors.
Based on the graph, which two organisms are most closely related?
A. brown algae and red algae
B. euglena and brown algae
C. brown algae and dinoflagellates
D. euryarchaeotes and diplomonads
Chemical digestion reduces large complex molecules to simpler compounds by the process of ________.
Plants use photosynthesis to meet their survival needs by enabling them to
Cultures of the lake of the ozarks water samples were grown on enrichment media for identification. however, these organisms are present to some degree in all samples. an important question from a clinical perspective is whether or not there is a significant increase in the fecal coliform populations that would put people's health at risk. if you were part of the team investigating this outbreak, how would you best enumerate the fecal coliform threat?
"a nurse is explaining the nursing process to a nursing assistant. which step of the nursing process should include interpretation of data collected about the client?"
The diagnosis step of the nursing process includes the interpretation of data collected about the client. It involves critical thinking to identify health problems and forms the basis for planning care and evaluating outcomes.
The step of the nursing process which should include interpretation of data collected about the client is the diagnosis step. During the diagnosis phase, the nurse analyzes the data gathered during the assessment to identify the client's health problems, issues, and strengths. This step involves critical thinking and clinical judgment to determine whether the data suggest a typical pattern or whether there are inconsistencies that require further investigation. It is a vital part of the nursing process as it directly informs the planning of care and subsequent interventions.
Following the diagnosis, the nursing process continues with planning outcomes, implementing care, and finally, evaluation. The nurse uses the data to establish expected outcomes tailored to the client, and during the evaluation phase, the outcomes are assessed to determine if the interventions were successful, necessitating the maintenance, modification, or cessation of the nursing action.
Many protist alternate between diploid and haploid stages during their life cycle in a process known as
(A) alternation of generations
(B) conjunction
(C) sexual reproduction
(D) asexual reproduction
Which organs or tissues prefer to use ketone bodies such as acetoacetate as a fuel energy source instead of glucose?
According to the principle of competitive exclusion, two species cannot continue to occupy the same _____. (concept 54.1)
Studies show that the use of fat replacers will reduce the risk of obesity. false
Debridement is used to remove ________ from the skin. necrotic tissue wrinkles bacteria a cancerous tumor
One trait a plant can have is either red leaves (R) or brown leaves (r). Another trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has the genotype RRTt. What is the phenotype of this plant ?.
A. Brown leaves , tall stems
B. Red leaves , tall stems
C. Red leaves , short stems
D. Brown leaves , short stems
Answer: Option B. Red leaves, tall stems.
Explanation:
For a given gene there are two or more alternative forms present called as alleles. The alleles of a given gene can either be dominant or recessive.A dominant gene is the one which governs the phenotype in both homozygous and heterozygous condition whereas the recessive gene only gets expressed in homozygous condition.In the given question the allele R (red leaves) and T (tall stem) is dominant and, therefore, RRTt genotype will have red leaves and tall stem.Answer:
Red leaves, tall stems
Explanation:
on apex
The fact that a strain of yeast with a certain defective gene can use the human version of the gene to repair itself is evidence that yeast and humans - A) depend on the same food supply B) share a genetic code Eliminate C) both have eukaryotic cells D) have identical genomes
Answer: Option B
Explanation:
The yeast and human beings are genetically different but some part of their genome is same.
The yeast and the human beings are similar in the way that they share the same genetic code. This is the reason when required the yeast can use a part of the human genome to compensate for the defective part of the gene.
The yeast and the human genome contains some part as in common so that human genome can be used in case of the emergency.
Hence, the correct answer is option B
Charles darwin proposed that evolution by natural selection was the basis for the differences that he saw in similar organisms as he traveled and collected specimens in south america and on the galapagos islands.
Hybrid zones provide an opportunity to investigate _____. see concept 24.3 (page 514) view available hint(s) hybrid zones provide an opportunity to investigate _____. see concept 24.3 (page 514) mutations punctuated equilibrium the evolution of reproductive isolation allopatric speciation polyploidy
Hybrid zones allow us to study the evolution of reproductive isolation and speciation, as these zones facilitate significant genetic mixing and evolution of reproductive barriers.
Explanation:Hybrid zones provide opportunities to investigate the evolution of reproductive isolation. A hybrid zone is a region where interbreeding happens between two closely related species, resulting in hybrid offspring. In these zones, extensive genetic mixing can occur, offering a rich area for studying the mechanisms that can prevent or reduce gene flow, thereby influencing the formation of new species, a concept known as speciation. Moreover, as hybrids can have features from both parental lines, studying them can provide insights into allele fitness, leading to strengthened reproductive barriers, furthering our understanding of allopatric speciation.
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Hybrid zones enable examination of the evolution of reproductive isolation, along with reinforcement (increased divergence), fusion (merging of species) and stability (continuous production of hybrids). They provide insight into the processes of species evolution and speciation, especially concerning the nature of reproductive isolation and events like polyploidy.
Explanation:Hybrid zones provide an opportunity to investigate the evolution of reproductive isolation. This is because a hybrid zone is an area where two closely related species continue to interact and reproduce after speciation has occurred. Depending on reproductive barriers and the relative fitness of the hybrids, reinforcement, fusion, or stability may result.
Reinforcement refers to increased divergence between species due to the low fitness of hybrids, effectively encouraging the species to evolve further apart. Fusion, on the other hand, can occur when reproductive barriers weaken, causing two species to merge back into one. Stability occurs when reproductive barriers and the fitness of hybrids remain constant, allowing for the continuous production of hybrid offspring.
Species evolution, the formation of new species (speciation), the nature of reproductive isolation, prezygotic/postzygotic barriers and events like polyploidy are all related aspects that can be studied in the context of hybrid zones.
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Use the numbers to put the steps of translation in order, from first (1) to last (5). The large ribosomal subunit completes the initiation complex. A stop codon is reached. The initiator tRNA binds to the start codon. Amino acids are paired with anticodons, gradually forming a long chain. The small ribosomal subunit joins the mRNA strand, and the start codon is identified.
3, the largest ribosomal subunit completes the initiation complex
5,A stop codon is reached
2, the initiator TRNA binds to the start codon
4,Amino acids are paired with anticodons gradually forming a long chain
1 , the small ribosomal subunit joints the mRNA strand and the start codon is identified
The magnetic field of a wire with a current forms what shape