Answer:
1) Option b is correct. a founder effect
2) Option a is correct. keeping the sex ratio as close to 50:50 as possible
Explanation:
The exposed situation is an example of an ex-situ conservation program. These programs are planned to keep and restore the population of species that are in danger of extinction. There are many challenges associated with captivity, and one of them is related to maintaining genetic diversity in the population.
1) Introducing a few animals of an endangered species into the zoo might be considered an example of the founder effect. Just a pregnant female is enough for it to occur. And the most significant problem associated with this event is the loss the genetic diversity or variability. When breeding animals in captivity there is a high risk of losing some genes and fixating others, due to inbreeding.
Genetic drift is the random change that occurs in the allelic frequency of a population through generations. The magnitude of this change is inversely related to the size of the original population. These changes produced by genetic drift accumulate in time. Eventually, some alleles get lost, while some others might set. Genetic drift affects a population and reduces its size dramatically due to a disaster or pressure-bottleneck effect- or because of a population split -founder effect-. In founder effect, a new population originates when a few individuals, coming from a bigger-sized population and carrying their genes, settle down in a new area and reproduce. This small population might or might not be genetically representative of the original one. Some rare alleles might be exceeded or might be lost by complete. Consequently, when the small population increases in size, it will have a genetically different composition from the original one. In these situations, genetic variability is reduced, and there exists the possibility of developing a peculiar allelic composition. When the number of individuals that originated the new population is low, the founder effect will be very extreme because the genetic drift effects are inversely proportional to the original number of individuals.
2) When selecting the animals that are being kept in captivity, it is significant to consider a few aspects concerning genetic diversity maintenance. The main objective is to prioritize the original genetic material.
To get founder individuals that get to represent the maximum genetic variability of the population, or among population if possible. The sex proportion of the founder individuals should always be 1:1 or 50:50. This ratio is important to keep genetic variability, especially because many males in captivity might have reproductive problems. To keep diversity, females need to mate with different males, and not just a few of them. Animals should be subadults reaching their sexual maturity.When mating animals, they should be as different as possible to decrease the possibility of a common ancestor among the couple.Which cell structure is represented by the seed in the center of the avocado?
A. Nucleus
B. Cell membrane
C. Cell wall
D. Cytoplasm
Answer:
A
Explanation:
Answer:
A. Nucleus
Explanation:
The avocado seed is a hard, massive core in the center of the fruit, just like the nucleus in a cell.
which division of the nervous system collects information
Answer:
peripheral nervous system
Explanation:
the general flow of information is that the peripheral nervous system (PNS) takes in information through sensory neurons, then sends it to the central nervous system (CNS) to be processed
This part of the brain is responsible for essential survival functions such as breathing and heart rate.
cerebrum
corpus collosum
cerebellum
brain stem
Answer:
D. brain stem
Explanation:
i am 100% sure because I learned this last year! hope this helps!!
4. DNA profiles can be used for all the following except:
a. Paternity tests
b. Matching crime scene DNA to a suspect
c. Identifying Human Remains
d. Drug Testing
How is the structure of nucleotide related to the structure of the DNA molecule
Explanation:
DNA is made up of nucleotides. And each nucleotide consists of phosphate, a sugar group and a nitrogen base. Nucleotides are attached to form two long strands that form a structure called a double helix.
which population dispersal pattern is the most common?
A. Clumped
B. Random
Answer:
A. Clumped
Explanation:
There are 3 common distribution patterns, namely clustered, evenly distributed, and random. The characteristics of the clustering distribution pattern are based on an individual's instinct to gather near their food source
[tex] \blue {Hashibira}[/tex] [tex] \\ [/tex] [tex] \blue {Inosuke}[/tex]
please help me I don't really understand
Answer:
.
Explanation:
At 40°C, the temperature of sorghum could be lower than 40°C. True or False
Answer:
True.
Explanation:
The temperature of sorghum could be lower than 40°C when the surrounding temperature is 40°C because the sorghum plant absorb the sunlight and used it in the process of photosynthesis and the transpiration process regulate the body temperature of sorghum plant. Transpiration is the process in which water evaporated through a plant and its aerial parts, such as leaves, stems and flowers. This process removes extra heat with water through stomata so we can say that the temperature of sorghum is lower than 40°C.
Which of the following is not an example of income?
answer-food
Answer:
food
Explanation:
You are hired by Murphey Farms to decrease the backfat in their hogs. The current hog population has a mean backfat content of 20.2mm. You selected the hogs with the smallest amount of backfat, mated them and obtained the progeny generation. The selected hogs had a mean backfat content of 9.5mm. You know that the heritability for percent backfat in hogs is 0.47.
1. What is the selection differential? Round your values properly to 2 decimal digits.
2. What is the expected response to selection? Round your values properly to 2 decimal digits.
3. What is the expected mean of the progeny generation? Round your values properly to 2 decimal digits.
Answer:
SD = -10.7 R = -5.3X₁ = 14.9 ≅ 15mmExplanation:
Before answering the question, we need to know a few concepts.
Artificial selection is the selecting practice of a specific group of organisms in a population -that carry the traits of interest- to be the parents of the following generations.
Parental individuals carrying phenotypic values of interest are selected from the whole population. These parents interbreed, and a new generation is produced.
The selection differential, SD, is the difference between the mean value of the trait in the population (X₀) and the mean value of the parents, (Xs). So,
SD = Xs - X₀
Heritability in the strict sense, h², is the genetic component measure to which additive genetic variance contributes. The heritability might be used to determine how the population will respond to the selection done, R.
h² = R/SD
The response to selection (R) refers to the metric value gained from the cross between the selected parents. R can be calculated by multiplying the heritability h², with the selection differential, SD.
R = h²SD
R also equals the difference between the new generation phenotypic value (X₁) and the original population phenotypic value (X₀),
R = X₁ - X₀
-------------------------------------------------------------------------------------------------------------
Now that we know these concepts and how to calculate them, we can solve the proposed problem.
Available data:
• You are decreasing the backfat in the hogs.
• The hog population mean backfat content = 20.2mm → X₀
• The selected hogs had a mean backfat content of 9.5mm → Xs
• Heritability is 0.47 → h²
According to what we sow previously, we need to find out the value of X₁, which reflects how tall the new generation of corn will grow.
• We know that R = X₁ - X₀, so we need to clear this formula to calculate X₁
X₁ = R + X₀
We already know that X₀ = 20.2mm
Now we need to calculate R.
• R = h²SD
We know that h² = 0.47,
Now we need to calculate SD
• SD = Xs - X₀
Xs = 9.5mm → Parentals media height
X₀ = 20.2mm → Population media Height
SD = Xs - X₀
SD = 9.5 - 20.2
SD = -10.7
Knowing this, we can calculate R
R = h²SD
h² = 0.47 SD = -10.7R = 0.47 x -10.72
R = -5.3
Finally, once we know the R-value we can calculate the X₁ value
X₁ = R + X₀
X₁ = -5.3 + 20.2
X₁ = 14.9 ≅ 15mm
What do lymph and blood have in common? AThey're both part of the lymphatic system BThey both transport nutrients to cells throughout the body They're both purified by lymph nodes They're composed largely of blood plasma
Answer:
They're composed largely of blood plasma
Explanation:
In which of the following scenarios would evolution by natural selection take place? (1 point)
O Microorganisms reproduce asexually, producing identical offspring
O Corn is genetically modified and cloned to make identical crops
O Penguins reproduce sexually, producing offspring that look different from one another
O A banana tree branch is planted, producing a clone of the parent tree
Evolution by Natural selection occurs when the offspring of genotypes are produced in response to the environment. Hence the correct option is C Penguins reproduce, offspring that look different from one another.
Evolution by Natural SelectionCharles Darwin and Alfred Russel Wallace developed the theory of Evolution by Natural Selection. For evolution by natural selection take place, Darwin described four essential conditions, these are:
Trait selection must be variable in the populationThe trait must be heritableThe struggle of existenceThe organism which fits to its environment.As per the question, penguins produced offspring that look different from another, this must be because of the evolution by Natural selection. Hence the correct option is C.
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explain how energy carried by a light and sound wave with those properties
The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.While sound waves & light waves both travel as waves and are manifestations of energy, they differ significantly in important ways.Light and sound travel at very different rates.
How are the energies of sound and light similar?Both light and sound energy travel as waves, which is how they are comparable to one another.They have such a wavelength, amplitude, and frequency, to put it another way.
How do light & sound waves connect to energy?The fact that both light & sound are waves of energy is among the most crucial things to comprehend about both.
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Which cells in your body undergo cellular respiration.
Answer:
it is a
aerobic respiration
1. Draw Conclusions Which petri dish showed the greatest amount of growth after one
Week? Why? NO LINKS OR MESSING AROUND PLEASE OR REPORTED INSTANTLY⚠
Answer:
i think its the first one because it has more moist environment checked after a week
Explanation:
i hope this is what u needed ;)
Answer true or false to the following statements. Use the graphic on the
back to determine the answers.
1. ______ Dogs belong to the order Felidae.
2. ______ A fox belongs to the phylum Arthropoda.
3. ______ Snakes belong to the phylum Reptilia.
4. ______ Lions belong to the class Mammalia.
5. ______ All arthropods belong to the Class Insecta.
6. ______ All rodents belong to the phylum Chordata.
7. ______ All amphibians belong to the class Reptilia.
8. _______ All primates are mammals.
9. _______ The class mammalia includes dogs, cats and rats.
10. ______ A lion belongs to the genus Felis.
11. ______ All mammals are primates.
12. ______ Insects and lobsters are arthropods
Classification is crucial as it allows grouping anything into specific categories.
The taxonomic hierarchy of classification is,
speciesgenusfamilyorderclassphylumkingdomExplanation:
Dogs belong to the order Felidae - FALSE
Dogs belong to the order Carnivora.
A fox belongs to the phylum Arthropoda - FALSEFox belongs to the phylum Chordata
Snakes belong to the phylum Reptilia - FALSESnakes belong to the phylum Chordata and class Reptilia
Lions belong to the class Mammalia - TRUE All arthropods belong to the Class Insecta - FALSEArthropods are invertebrate animals with an exoskeleton, segmented body, and jointed appendages. Although most of the arthropods are insects there are some exceptions like King crabs, Lobster, and Shrimp.
All rodents belong to the phylum Chordata - TRUE All amphibians belong to the class Reptilia - FALSEAmphibians have their class called amphibia and the class reptilia include a different class of organisms called reptiles.
All primates are mammals -TRUEThe class Mammalia includes dogs, cats, and rats -TRUEA lion belongs to the genus Felis - FALSELion belongs to the genus Panthera
All mammals are primates - FALSEA Primate is a placental animal that is characterized by having distinguished hands and feet and a well-developed brain. Examples are Apes and humans.
Whereas a mammal is a warm-blooded vertebrate animal. They include humans, lions, apes, dogs, etc.
Hence all primates are mammals but all mammals are not primates.
Insects and lobsters are arthropods - TRUEIf a person's thyroid gland is removed surgically and hormone supplements
are not taken, the person will probably lack energy, feel cold, and gain weight.
a) true
b) false
Why is it difficult to find the fish named after former president Barack Obama
what part of a virus that contains the instructions for making new viruses
genetic material
active
inactive
vaccines
over-the-counter medications
ability to multiply
Answer:
ability to multiply
Explanation:
the more they multiply the more they can spread and that's how they can get more instructions to make it worse like coronavirus right now you can give it from person to person because the virus knows it can multiply and transfer over to another human being for germs or touch
we think of our muscular system as the system that helps move around it also functions on an interval level by helping food movement in the ______ and ________ both parts of the digestive system
Answer: it also functions on an interval by helping food movement in the stomach and small intestines.
Explanation:
Both parts of the digestive system .
what anatomy and physiology
Answer:
Explanation:
Anatomy and physiology are two of the most basic terms and areas of study in the life sciences. Anatomy refers to the internal and external structures of the body and their physical relationships, whereas physiology refers to the study of the functions of those structures.
If you did the experiment with both plant and animal cells, how do you think their DNA would compare?
Answer:
The correct answer is - the DNA from both cell types will look just the same. The structure of DNA is consistent among most living things, even in animals and plants.
Explanation:
In plant and animal cells have various differences but at the genetic level or chemical level, the DNA of both cells are structurally and functionally similar to one another. The DNA of both cell-type have a double helix and ladder-like genetic molecule.
Both of these cells have double-stranded DNA molecules present in the nucleus. It is also found that the some of the proteins are produce by both plants and animals.
Part B
The minerals that make up rocks give them their unique properties. Based on your results, do you think that any of your three rocks have the exact same mineral make up, or are they three different types of rock? Explain your answer.
Rocks doesn't have the exact same mineral make up as they are made of different composition.
How to illustrate the information?A naturally occurring collection of minerals and/or mineraloids is called rock. There is no known chemical makeup of rocks.
Minerals are naturally occurring substances with unique atomic structures, compositions, and chemical and physical properties. Typically, two or more minerals are mixed together through geological processes to form rocks.
Because of their minerals, formation processes, and processes that have affected the rocks since they were formed, various rocks have different properties.
Rocks are composed of minerals and have a wide range of traits or properties. When a rock is ground into a powder, it takes on the color of streak, and a rock's luster indicates how shiny it is. Other characteristics include size, shape, texture, and hardness.
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A group of biologists working in Africa observed that some of the Acacia trees growing in their study plots had clearings around them, so that no other vegetation grew within a few meters around each tree. These trees were also covered with ants. The researchers hypothesized that the ants must have cleared the vegetation around each tree. To test this, the researchers decided to remove the ants from some of the trees by spraying with an insecticide and see if vegetation grow in the clearings with the ants gone. They located 100 Acacia trees with clearings and ants present, and sprayed half of them with insecticide. The trees tended to exist in two general habitats: the first habitat was much higher in elevation and was moisture, cooler, and had more wind exposure than the second habitat. Because the insecticide spray would have drifted in the windy conditions of the higher elevation habitat, the researchers only sprayed trees in the low elevation habitat. They visited their research location once a month for two years to record whether vegetation re-grew in the clearings. Which element of experimental design is missing or flawed in this experiment
Answer:
The project showed no control over the confounding variable.
Explanation:
The confounding variable are variables that can influence the dependent variables and that were not established by the researchers. These variables exist naturally in the experiment and are able to alter the result of the experiment in a very intense way.
The dependent variable, in the case presented in the question above, is the proliferation of vegetation around the Acacia plants, while the independent variable is the amount of ants present in the environment. As we can see these two variables are being controlled by the researchers, however, the confounding variables such as soil fertility, water availability, sunlight intensity, wind intensity, are not being controlled and this can severely damage the experiment.
The element of experimental design that is missing or flawed is that the experiment did not control any confounding variable.
CONFOUNDING VARIABLE:A confounding variable in an experiment is a variable that can influence the outcome of the dependent and independent variables.
In this experiment, the dependent variable is case the proliferation of vegetation around the Acacia plants, while the independent variable is the amount of ants present in the environment.
In order to effectively observe the effect of the independent variable on the dependent variable, the confounding variables that must be kept constant or controlled include:
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What is shortest to longest growing season for tundra, desert, rainforest, deciduous forest
Answer:
Desert
Explanation:
I hope this is it
This is an example Dinoflagellates can perform photo and provide
The relationship between Dinoflagellates and coral is an example of a mutualistic relationship.
Mutualistic relationships are interactions between two different species in which both species benefit. In the example you provided, the dinoflagellates perform photosynthesis and provide energy to themselves and the coral, while the coral provides protection for the dinoflagellates. This is a mutualistic relationship as both species benefit from the interaction.
B. dependent relationship, C. parasitic relationship, and D. commensalism relationship are all different types of interactions.
-A dependent relationship is one in which one species is entirely dependent on the other for survival,
-A parasitic relationship is one in which one species (the parasite) benefits at the expense of the other species (the host),
-A commensalism relationship is one in which one species benefits from the interaction while the other species is neither helped nor harmed.
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The complete question is:
Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provides protection to the dinoflagellates. This is an example of a
A. mutualistic relationship.
B. dependent relationship.
C. parasitic relationship.
D. commensalism relationship.
Dinoflagellates are a diverse group of marine microorganisms that possess the ability to perform photosynthesis and produce oxygen.
What are dinoflagellates?Dinoflagellates are a diverse group of aquatic microorganisms that belong to the kingdom Protista. They are characterized by their distinctive whip-like flagella, which allow them to move through the water. Dinoflagellates are found in both marine and freshwater environments, and they can be found in a wide range of habitats, from the open ocean to estuaries, lagoons, and even in soil. They are a type of phytoplankton and play a critical role in the oceanic food web and global biogeochemical cycles.
Some dinoflagellates are photosynthetic, meaning they can produce their own food through the process of photosynthesis, and can produce oxygen. They are an important primary producer of marine food webs and support the entire marine ecosystem. However, some dinoflagellates produce toxins that can be harmful to marine life, as well as humans and can cause blooms or "red tide" phenomenon.
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Which of the following refers to the diversity of available genes within a population?
A)
demographics
B)
genetic variety
C)
gene pool
D)
population distribution
E)
tolerance range
¿Qué de la siguiente es la mejor explicada por la comprensión de que la
Tierra gira sobre su eje una vez cada día? necesito ayudaaa
Answer:
sí, la Tierra gira sobre su eje una vez al día
Explanation:
..?
Many bony fish species have a swim bladder: an air-filled organ that can inflate to help them float up in water or deflate to help them sink down. What can you infer about a species that lacks this organ?
A species that lack a swim bladder, a fish without buoyancy issues will often stay still and erect in the water.
What is a swim bladder?You will notice excessive fin movement if your fish are trying to keep upright or are swimming sideways or upside down as they attempt to float correctly.
Thus, we may draw the conclusion that the swim bladder's air capacity rises as the fish dives deeper.
You might be shocked to learn that the majority of bony fishes have a swim bladder, a particular organ that helps them with that.
Therefore, this is a gas-filled sac with a thin wall that is found inside a fish's body.
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Name 5 high energy substrates of metabolism in the order of their energy of hydrolysis
Answer:
A summary of metabolism. The unity of life. Biological energy exchanges. ...
The fragmentation of complex molecules. The catabolism of glucose. Glycolysis. ...
The combustion of food materials. The oxidation of molecular fragments. ...
The biosynthesis of cell components. The nature of biosynthesis. ...
Regulation of metabolism. Fine control.