Select the most probable mating system for each species based on the appearance of the animals as described. Males and females are difficult to distinguish by appearance. Males are highly ornamented. Females are larger than males.
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Based on the animal’s appearance, the most probable mating system for each species are as follows:
Males and females are difficult to distinguish by appearance --> monogamous.Males are highly ornamented --> polygynous.Females are larger than males --> polyandrous.How does the animal’s appearance affect its mating system?There are 3 types of mating systems:
Polyandrous, which is when a female copulates with several males.Polygyny, which is when a male copulates with several females.Monogamous, which is an exclusive pair bond between two animals.Animals’ appearance usually gives signs of which mating system they are into. Highly ornamented males tend to be more able to provide their females with resources and parental assistance. They also have more beneficial genes to be passed on to their offspring, which makes ornamented males tend to be polygynous.
Meanwhile, polyandrous females should have the ability to take care of their offspring from multiple males. That is why they tend to have larger bodies than males.
This question seems incomplete. The complete options for this question are:
“Select the most probable mating system for each species based on the appearance of the animals as described:
Males and females are difficult to distinguish by appearance.Males are highly ornamented.Females are larger than males.The answer choices are:
PolyandrousPolygynousMonogamous”Learn more about monogamy here https://brainly.com/question/29729900
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Related Questions
The different species of hawaiian honeycreepers shown all descended from a single species of north american bird. They now have different beaks, eat different foods, sing different songs, and live in different environments on the islands. Which factor probably contributed most to the development of these different species?.
Answers
The factor that probably contributed most to the development of different species of Hawaiian honeycreepers, which descended from a single North American bird species, is adaptive radiation.
Adaptive radiation occurs when a single species diversifies into multiple distinct species as it adapts to different ecological niches within a relatively short evolutionary timeframe. This process can be driven by factors such as geographical isolation, competition for resources, and environmental changes.
In the case of the Hawaiian honeycreepers, their ancestral North American bird species arrived on the isolated Hawaiian Islands and faced various ecological opportunities.
The different environments and resources available on the islands prompted the ancestral bird population to evolve and adapt to their new surroundings. Over time, this led to the development of unique beak shapes, feeding habits, vocalizations, and habitat preferences among the honeycreepers.
These adaptations allowed them to exploit diverse food sources and reduce competition, ultimately resulting in the formation of distinct species.
In summary, adaptive radiation was the main factor contributing to the development of different species of Hawaiian honeycreepers, as the ancestral North American bird species diversified in response to various ecological opportunities on the isolated Hawaiian Islands.
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Compare and contrast the cell structures / organelles found in plant and animal cells.
list 3 organelle/structures plant and animal cells have that are the same
list 2 organelles/structures plant and animal cells have that are different
Answers
Answer:
They both have a cell membrane.
they both have a nucleus
they both have the endoplasmic reticulum
Explanation:
One has a cell wall
one has a big vacuole and the other have many little vacuoles
Endangered Species
Research an endangered species. Include an image of this species. Discuss the following questions: Approximately how many are left? When is the estimated time they will be extinct? What is the major cause of their future demise?
Vulnerable Species Research a vulnerable (threatened) species. Include an image of this species. How many are there left or have reappeared? What is being done to help them come back? What was the cause of their decline or demise?
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a. Endangered Species: African Elephant: The African elephant is a majestic species that is facing extinction due to various factors. Approximately 415,000 African elephants remain in the wild, with their population declining by 60% over the last 75 years.
b. According to the International Union for Conservation of Nature (IUCN), the African elephant is classified as vulnerable, and it is estimated that if current trends continue, they could be extinct within the next few decades.
The major cause of their future demise is the illegal wildlife trade, particularly the demand for ivory. Poaching for ivory has led to the killing of tens of thousands of elephants each year, resulting in severe population declines in many African countries. In addition to poaching, habitat loss and fragmentation, human-wildlife conflict, and climate change also pose significant threats to African elephants.
To help African elephants, several conservation efforts are underway. These include anti-poaching measures, habitat restoration, and community-based conservation programs. In addition, many countries have banned the trade in ivory, although enforcement of these laws can be challenging.
Vulnerable Species: Snow Leopard: The snow leopard is a vulnerable species that is found in the high-altitude mountain ranges of Central and South Asia. Approximately 4,000 to 6,500 snow leopards remain in the wild, with their population declining by 20% over the last three decades. According to the IUCN, the snow leopard is classified as vulnerable due to habitat loss and fragmentation, poaching, and retaliatory killings by herders.
The major cause of their decline is habitat loss and fragmentation due to human activities such as mining, agriculture, and infrastructure development. In addition, poaching for their pelts and body parts is also a significant threat to snow leopards. Retaliatory killings by herders who lose their livestock to snow leopards are also a major cause of their decline.
To help snow leopards, several conservation efforts are underway. These include habitat restoration, anti-poaching measures, and community-based conservation programs. In addition, the Snow Leopard Trust and other organizations are working to educate local communities about the importance of snow leopards and to promote sustainable development practices that minimize negative impacts on snow leopard habitat.
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What happens to the neurotransmitter once an action potential is propagated on the muscle sarcolemma
Answers
Answer:
broken down by enzyme
Explanation:
It is immediately broken down by an enzyme. The opening of sodium channels is essential for the initiation of an action potential in the muscle cell membrane
When individuals who are exposed to a disease are separated from others who have not been exposed to the disease, we call it whereas separates people sick (ill) with a contagious disease from people without the disease. a. isolation, quarantine b. quarantine, isolation c. Social distancing, stay at home orders d. Stratification, quarantine
Answers
The correct answer is (b) quarantine, isolation. When individuals who are exposed to a disease are separated from others who have not been exposed to the disease, it is referred to as quarantine and isolation.
Quarantine typically applies to individuals who have been exposed to a contagious disease but are not yet showing symptoms. They are separated from the general population to prevent the potential spread of the disease during the incubation period. Isolation, on the other hand, is the separation of individuals who are already sick (ill) with a contagious disease from those who are healthy, in order to prevent the transmission of the disease. Both quarantine and isolation are important measures in controlling the spread of infectious diseases.
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Why is earth interior layered??
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Answer:
The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.
Explanation:
How does the presence of lactose affect the lac operon system in E. coli?
Responses:
A. Lactose binds to the repressor, changing its shape so that it cannot block transcription.
B. Lactose breaks down repressor proteins so that transcription can begin.
C. Lactose binds to RNA polymerase, activating it to begin transcription.
D. Lactose triggers the expression of other proteins that break down repressors to start transcription.
Answers
The presence of lactose affects the lac operon system in E. coli in the sense that C. Lactose binds to RNA polymerase, activating it to begin transcription.
What is an operon system in bacteria?An operon system in bacteria is a group of genes that are transcribed as a unit and serve to carry out a specific metabolic function such as in this case the degradation of lactose into smaller subunit components.
Therefore, with this data, we can see that the operon system in bacteria is required to perform metabolic activities such as the degradation of foods.
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1. A fossil is the remains or traces of organisms that have lived in the past. Which statement is true
about fossils?
A. A fossil never includes a complete organism.
B. A fossil shows the evolution of an entire species.
C. Much of the evidence for evolution comes from fossils.
D. Fossils have provided a complete history of Earth's life forms.
2. In 1859, Charles Darwin proposed his theory of evolution based on natural selection. What
observation about the natural world does this theory explain?
A. how the fossil record was formed
B. how species change over time
C. how a species always retains its characteristics
D. how catastrophic events lead to extinctions
3. Extinction is the dying out of a species. What can lead to the extinction of a species if the
environment changes?
A .having traits that enable the species to adapt to the changed environment
B. an increase in the reproductive rate within the species
C. a lack of adaptations in the species that help individuals survive and reproduce in the changed
environment
D. the presence of genetic variations among the individuals of the species
Answers
1. Fossils is a main supporter of the evolution theory
2. Evolution
3. Lack oh adaptation risk death
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Why do we need genetic biodiversity?
NO COPY AND PASTE!111!1!!!11!!
Answers
and could be used for pregnancy
Can any of the other promoters be used to create a resistant corn plant?
Answers
It is possible to use other promoters to create a resistant corn plant, but it would depend on the specific characteristics of the promoter and the trait of interest.
The CaMV 35S promoter, which is commonly used to create transgenic crops, is just one of many promoters that can be used to express foreign genes in plants. Other promoters, such as the ubiquitin promoter or the maize alcohol dehydrogenase (Adh1) promoter, have also been used successfully to create transgenic plants with desirable traits. In order to create a resistant corn plant, scientists would need to identify a promoter that is specific to the gene or genes responsible for the desired resistance, and then use that promoter to express those genes in the corn plant. However, it is important to note that the creation of transgenic plants is a complex and highly regulated process, and the safety and environmental impact of such plants must be carefully evaluated before they are approved for commercial use.
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Why are viruses used in gene therapy?
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Answer:
certain viruses are used as vectors because they can deliver the new gene by infecting the cell. the viruses are modified so they can't cause disease when used in people. some types of virus, such as retroviruses, integrate their genetic material (including the new gene) into a chromosome in the human cell.
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9. Knowing what you know about how a substance travels in
diffusion, in order for oxygen to leave the alveoli and enter the
blood, there would be a [ HIGHER or LOWER ] concentration of
oxygen in the alveoli compared to the blood.
10. Knowing what you know about how a substance travels in
diffusion, in order for carbon dioxide to leave the blood and enter the
alveoli, there would be a [ HIGHER or LOWER ] concentration of
carbon dioxide in the alveoli compared to the blood.
11. Explain your reasoning for questions #9 and #10.
Answers
Answer:
The correct answer is :
9. higher
10. lower
Explanation:
The movement of Oxygen from alveoli to the blood capillaries is possible due to simple diffusion through the paper-thin membrane between them due to the concentration gradient. The Concentration of oxygen in the alveoli is higher than the blood capillaries so the movement of oxygen takes place.
The CO2 concentration in the blood is higher than in the alveoli, so it diffuses through the membrane from high concentration to low concentration to the alveoli.
Higher pressure gradient in the alveoli to lower in the blood for oxygen transport.
Higher pressure gradient in the blood to the lower in the alveoli for C02 transport out of the cells.
Basically, the partially pressure of oxygen in the alveoli of lungs during external respiration is 104mmHg.Whereas in the blood this is 40mmHg. This pressure gradients forces 02 through the 1 cell layer thick into the blood.
The reverse is the case in the blood for C02 with higher partial pressure of45mmHg in the blood capillary compared to 40mmHg in the air. This forces air out of the blood into the alveoli to the air in the lungs.
During internal respiration, the partials pressure of 02 in the tissues is low 40mmHg,becaue of cellular respiration, but higher in the blood. Setting up partial gradient differences .Therefore 02 dissociates from the blood hemoglobin to the tissues.
The reverse is the case for C02 which is of higher pressure gradient in the tissues than the blood. The set up a gradients that diffuses C02 from the tissues to the blood (opposite direction), carried by HB of the blood to the alveoli for onward diffusion into the air in the lungs.
The alveoli( air sac) is located in the lungs and served at the medium of gas exchange between the air in the lungs and the blood.
The cells of its wall are 1 cell layer thick made up of squamous epithelium; this reduces the diffusion distance and therefore aids diffusion.
The walls are usually moist so that the gases can readily dissolved in the moist lining for diffusion thus ensures 02 is at the same temperature with the body temperature.
The thin surface ensure high surface area to volume ratio, which increases the rate of diffusion.
They close to the pulmonary capillaries to reduce diffusion distance.
These (partial pressure) gradients ensures continuous availabity of the 02 in the blood tissues and the removal of C02 from the blood.
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Questions why is the heating in the Benedict's is test and millon test carried out in a water bath
Answers
The heating in the Benedict's test and Millon test is carried out in a water bath to maintain a constant and controlled temperature. This ensures accurate and reliable results by minimizing external factors that could influence the reactions taking place.
The Benedict's test and Millon test are both chemical tests used to detect the presence of reducing sugars, such as glucose, in a given solution. These tests involve a reaction between the reducing sugar and a reagent, which undergoes a color change in the presence of the sugar.
Heating is an essential step in both tests because it helps to facilitate the reaction between the reducing sugar and the reagent. By applying heat, the rate of reaction increases, allowing for faster and more reliable results. However, it is crucial to maintain a consistent and controlled temperature throughout the reaction to ensure accuracy.
A water bath is used for this purpose. A water bath consists of a container filled with water that is heated to a specific temperature, typically around 70-100 degrees Celsius, depending on the test being performed. Placing the test tubes containing the reaction mixture into the water bath allows the solution to be heated uniformly and consistently.
The water bath provides a stable and controlled environment, preventing sudden temperature fluctuations that could affect the reaction rate and, consequently, the test results. It helps to maintain the reaction at the desired temperature for a specified duration, ensuring optimal conditions for the reaction to occur.
By carrying out the Benedict's test and Millon test in a water bath, scientists and laboratory technicians can achieve reliable and reproducible results, allowing for accurate identification of the presence of reducing sugars in a given solution.
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I’m not sure what to put and I been on this question for a minute?!!
Answers
Answer:
For the growth of cells and tissues, and to well, produce more cells.
Explanation:
Cells are important for all organisms, from humans to singlecelled organisms. Cells do “die” and new cells are needed to carry out bodily functions.
Graded potentials: Group of answer choices include receptor potentials and postsynaptic potentials. are conducted decrementally. include depolarizing and hyperpolarizing potentials can be summed are described by all of these.
Answers
Graded potentials are electrical signals that are generated by changes in the membrane potential of a neuron, muscle cell, or other excitable cell. These potentials are conducted decrementally.
Here, correct option is B.
These can be either depolarizing or hyperpolarizing, depending on the type of cell and the stimulus that causes the change in membrane potential. Graded potentials are further described by their ability to be summed, meaning that multiple graded potentials can be combined to produce a single, larger response.
Receptor potentials and postsynaptic potentials are two kinds of graded potentials that are important for signaling within the nervous system. Receptor potentials are electrical signals generated in sensory neurons when they are stimulated by external stimuli.
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For which reasons would a male peacock spread his tail feathers?
Answers
Explanation:
when they are attracted to a female peacock and wants to mate
Answer:
2 = to attract a peahen
3 = to show that he is healthy
5 = to intimidate rival males
Explanation:
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the number of protons in one atom of an alement determines the atoms _________, and the number of protons plus neutrons determines the ______________, of an element.
Answers
The number of protons in one atom of an element determines the atoms atomic number , and the number of protons plus neutrons determines the mass number, of an element.
A chemical element is a species of atoms, including the pure material made entirely of that species, that have a specific number of protons in their nuclei.
The atomic number is determined by the number of protons, and the atomic mass is determined by the sum of protons and neutrons.
The atomic number of an atom refers to how many protons it has. This number is crucial since it is exclusive to the atoms of a certain element. Every element has a variable number of protons in its atoms, yet every element has the same number of protons in all of its atoms.
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what type of energy transfer happens when something freezes
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_______ is a way of solving problems and finding answers to questions using observation and investigation to gain knowledge about events in nature.
What is it?
Answers
Answer:
Hey..I think it is hypothesis.
What are the causes of wildfires?
Answers
Answer:
Humans and Wildfire
Human-caused fires result from campfires left unattended, the burning of debris, equipment use and malfunctions, negligently discarded cigarettes, and intentional acts of arson. Lightning is one of the two natural causes of fires.
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Explanation:
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What causes a wildfire?
Common causes of wildfires include lightning, human carelessness, arson, volcano eruption, and pyroclastic cloud from active volcano. Heat waves, droughts, and cyclical climate changes such as El Niño can also have a dramatic effect on the risk of wildfires. Although, more than four out of every five wildfires are caused by people.
How do you think an ecosystem recovers after a disaster?
Answers
Ecological Succession. Small forms of vegetation will start to grow usually, like lichens which is a mix of moss and algae and it will break down enough rock to create a top soil for more vegetation to grow. This is a broad question, but a slow progression of more vegetation and wildlife will eventually find its way.
which of these activates puts the least amount of carbon dioxide into the atmosphere A. taking the train B. driving a car C. riding a bycicle D. Taking a bus
Answers
Answer: Riding a bicycle is the correct answer.
Explanation:
Riding a bicycle puts the least amount of carbon dioxide. We can ride easily using our feet and effort.
When we are driving a car, taking the bus or train these burn lots of fuel, this is because carbon molecules are formed in the atmosphere.
Intensive fishing is one factor that contributes to algae overgrowth why?
Answers
What mechanism of Evolution is this?
Genetic Flow
Sexual Selection
Mutation
Natural Selection
Answers
Answer: a
Explanation:
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as:
Answers
Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.
Homeostasis is the body's ability to maintain a stable internal environment despite external changes.
In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.
These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.
For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.
Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.
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What is point mutation? Give an example.
Answers
Answer:
Point mutation is a change in a single base pair of DNA by substitution, deletion, or insertion of a single nitrogenous base. An example of point mutation is sickle cell anaemia. It involves a mutation in a single base pair in the beta-globin chain of haemoglobin pigment of the blood.
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What maintains the concentration gradient across
respiration membranes?
A. Ventilation
B. Cartilage
C. Spiracles
D. Cohesion
Answers
definition of cephalization
Answers
Answer:
Is development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end.
Answer:ephalization is defined as the evolutionary trend toward nervous system centralization and the development of a head and brain.
Explanation:
Do you think that meiosis occurs in plants? Explain.
Answers
Answer:
Yes I do.
Explanation:
Meiosis occurs in plants only during sexual reproduction in specialized cells to produce a haploid egg cell. Female egg cell in pine. Meiosis differs from mitosis in several important ways. The result of a mitotic division is two diploid cells, while meiosis results in four haploid gametes.
Answer:Yes
Explanation:Meiosis occurs in plants only during sexual reproduction in specialized cells to produce a haploid egg cell.
the common ancestor of all three mammal groups appeared around the early triassic period. this ancestor had and gave rise to .
Answers
The common ancestor of all three mammal groups, which include monotremes, marsupials, and placental mammals, appeared around the early Triassic period, approximately 220 million years ago.
This ancestor is believed to have had some basic mammalian characteristics such as the ability to nurse their young, have hair or fur, and possess specialized teeth for chewing and grinding food.
From this common ancestor, the three mammal groups evolved and diversified to adapt to different environments and niches. Monotremes, such as the platypus and echidnas, lay eggs and have a unique bill-like structure that they use to find food. Marsupials, such as kangaroos and koalas, give birth to relatively underdeveloped young that continue to develop outside of the womb in a pouch. Placental mammals, which include humans, dogs, and whales, give birth to fully developed young that have been nourished by a placenta in the womb.
Overall, the evolution of mammals is a fascinating topic, and studying their history can help us better understand the diversity and complexity of life on Earth.
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