Answer:
Explanation:
Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.
Which of the following best describes a parasite?
a. An organism that hunts and kills other organisms
b. An organism that lives in or on another organism and uses it in some way
C. An organism that helps other organisms by providing them with nutrients
d. None of the above
On the planet Feline, there are only cats. For one particular phenotype, Myles, there are two manifestations: either the cats like jazz music (the wild type phenotype) or they do not (the mutant phenotype). Under the assumption this phenotype is determined by a single gene with two alleles, and given that a mating of two wild-type cats produces the following number of offspring: Female, wild-type: 341; Male, wild-type: 369; Female, Myles: 121; Male, Myles: 123. The mode of inheritance most consistent with these data is:________
A. Autosomal dominant.
B. Two-locus inheritance.
C. Sex-linked recessive.
D. Autosomal recessive.
E. Two-locus dominant.
Answer:
D. Autosomal recessive.
Explanation:
Available data:
One diallelic gene codes for the phenotype MylesOne allele expresses the wild type phenotype → like jazz musicThe other allele expresses the mutated phenotype → don´t like jazzCross: Between two wild catsF1) Female, wild-type: 341; Male, wild-type: 369; Female, Myles: 121; Male, Myles: 123Autosomal recessive inheritance characterizes because the mutated gene locates in one of the 22 non-sexual, somatic chromosomes. To express the phenotype, an individual must carry two copies of the mutated gene. For this reason, the recessive allele must be present in both the male/father and the female/mother.
In the exposed example, the numbers among the progeny are 341:369:121:123. These values approximate a phenotypic ratio 3:1 for females, and for males. This ratio suggests that the cross was performed between two heterozygous individuals.
Let us name the alleles M and m, dominant and recessive respectively. The cross would be like follows
Cross: wild-type male x wild-type female
Parentals) Mm XY x MmXX
Gametes) MX, MY, mX, mY MX, MX, mX, mX
Punnett Square) MX MX mX mX
MX MMXX MMXX MmXX MmXX
mX MmXX MmXX mmXX mmXX
MY MMXY MMXY MmXY MmXY
mY MmXY MmXY mmXY mmXY
F1) Whole progeny
12/16 = 3/4 = 75% Wild-type cats → MMXX + MmXX + MMXY + MmXY4/16 = 1/4 = 25% Mutated cats → mmXX + mmXYFemales
6/8 = 3/4 = 75% Wild-type cats → MMXX + MmXX 2/8 = 1/4 = 25% Mutated cats → mmXXMales
6/8 = 3/4 = 75% Wild-type cats → MMXY + MmXY2/8 = 1/4 = 25% Mutated cats → mmXY
If u and y are two variables such that
du
= 4v - 3. and u = 5 when v = 2,
du/dv
find u in terms of v.
Answer:
5
Explanation:
The value of u is 5 in term of v by putting the value o v which is 2 in the formula that is du = 4v - 3. Putting the value of v = 2 we get, du = 4(2) - 3. --- du = 8 - 3. ---- du = 5. we are able to solve the question due to the presence of v value. If the v value is not present then we can't find the value of u in term of v. So we can conclude that the value of u in term of v is 5 if we put the value of v in the formula.
6
6.
Which behavior can help animals establish a
territory?
A. A caribou herd migrates seasonally.
B.
A scent trail leads ants to a food source.
C.
A wolf pack howls to warn other wolves to
stay away.
D.
A honeybee society divides the work between
its members.
1. Some individuals of a population or species are better suited to
a. evolve than other individuals.
b. survive and reproduce.
c. become extinct.
d. achieve punctuated equilibrium.
Answer:
I believe it's b. survive and reproduce.
What do you think about climate change warming driven by human induced emissions of green houses gases and it describes a change in such as temperature and rain fall
Answer:
The humans induced emissions of green houses gas by using artifacts that produce CO2.
Explanation:
The humans raise the green houses gas by using machines like cars, trains, and motorized machines that produces big amounts of pollution that contributes to the green houses gas, and that rises the temperature.
A student is planning an investigation of the effect of population size on an ecosystem. She plans to use a five-gallon fish tank with ten goldfish for her investigation. How should the student perform her investigation? A. She should limit the amount of food given and observe the results. B. She should add a predator fish to the tank and observe the results C. She should continue to add more goldfish to the tank and observe the results D. She should change the temperature of the water in the tank and observe the results.
Answer:
C
Explanation:
Because the student is observing the effects on the population, so it would make more sense to add more fish to the tanks to see how they would get effected.
A student is planning an investigation of the effect of population size on an ecosystem, so she should continue to add more goldfish to the tank and observe the results, as in Option C.
What is the population size of an ecosystem?In the student's investigation, the goal is to observe the effect of population size on an ecosystem using a fish tank with goldfish. The student has already decided to use a five-gallon fish tank with ten goldfish for the experiment, so by adding more goldfish to the tank, the student can observe the effect of population size on the ecosystem. As the population of goldfish increases, the competition for resources such as food, oxygen, and space will also increase. This can lead to changes in behavior.
Hence, she should continue to add more goldfish to the tank and observe the results, as in Option C.
Learn more about the population size of an ecosystem here.
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Which of the karyotypes shown is from a normal female?
Answer:
Karyotype C is from a normal female
A certain lake has a volume of about 480 m³. If the total population of freshwater shrimp in the lake is 600 million, what is the population density of the shrimp in that lake?
Answer:
1,250,000 shrimps per m³
Explanation:
Population density refers to how dense an area is per unit area/volume, and it is calculated by dividing the number of individuals in that area (population) by the area/volume of that area. That is;
Population density = population (N)/volume
According to this question, a certain lake has a volume of about 480 m³ that harbors a 600 million of freshwater shrimp. This means that;
Population density of the lake = population of shrimps ÷ volume of lake
Population density = 600,000,000 ÷ 480
Population density = 1,250,000 shrimps per m³
explica la relación entre el desarrollo de la resistencia a un insecticia entre una especie de insectos y la adaptación
Answer:explains the relationship between the development of resistance to an insecticia between a species of insects and the adaptation
Explanation:
PLZ HELP ASAP (BRAINLIEST INCLUDED)
Which of the following are seen when the solar winds collide with Earth's atmosphere?
Auroras
Lunar eclipses
Solar eclipses
Tides
Answer:
Auroras
Explanation:
Hope this helped :)
Answer:
Auroras
Explanation:
Auroras often form near Earth's north and south magnetic poles, but sometimes they can also occur near the equator. Their position all depends on solar winds. The stronger the solar wind is, the bigger and brighter the aurora is.
hope this helps ♥
SCENARIO THESE FINCHES HAVE A VARIETY OF BEAK SIZES AND SHAPES (CHARACTERISTICS)
PRINCIPLE OF EVOLUTION OCCURRING:
HOW DO YOU KNOW?
IN A WORLD WHERE BUGS BECOME SCARCE WHICH FINCH (OR FINCHES) WOULD BE SELECTED FOR?
Answer: Beaks that are capable of eating food other than bugs.
Explanation: Choosing a Finch with a beak that is capable of eating fish, and/or taking food out from a cactus is one that would survive in a world where bugs become scarce.
Hi can you help please please thank you
Answer:
10 N
Explanation:
in all honesty I'm unsure but I think it is 10N because 20N of force is pulling on way but 10N is pulling the other way so 20-10 is 10N and that's the answ
Which is the best description of a tropical climate zone? O A. High altitude O B. Warm all year long O C. Thick sheets of ice O D. Arid all year long SUBMIT
help
Answer: Hewo, there! your answer is Below
B. Warm all year long
Explanation:
here are normally only two seasons in tropical climates, a wet season and a dry season. The annual temperature range in tropical climates is normally very small. Sunlight is intense.
Hope this helps!
Have a great day!!
Stephanie is listening to the news and hears that Earth has recently experienced an increase in
radiation from the Sun. She might reasonably conclude that what occurred recently on the Sun to
result in this increase in radiation?
1. A slowing of the Sun's rotation
2. An increase in the Sun's mass
3. An increase is solar flares
4. A reduction in convection on the Sun
A young woman was going on a walk through the woods when she felt a mosquito bite her. She has a history of large local reactions to mosquito bites in the past. The reactions have been so severe she has even been skin tested, but the test came out negative. After the most recent bite, she went back to the doctor complaining of swelling at the site, dizziness, headache, and nausea. Benadryl is able to help relieve some symptoms. The doctor decides to try a blood test (i.e. ELISA based test) instead to test for allergies.
Required:
a. What is an ELISA test and how is it done?
b. Which antibody would they be looking for specific in this case?
c. The doctors also ran an SDS-PAGE test using the patient's serum mixed with two different antigens: lane 1 - bee venom; lane 2 - mosquito venom. What do the results show regarding the patient’s allergies?
d. Why are there two dark blue bands in lane 2?
e. Describe what happens during this specific type of allergic reaction.
Answer: uhh
Explanation: i need points
Cells that line the intestines break down food and absorb nutrients. Which cellular organelle performs a similar function for cells?
Answer: lysosome.
Explanation:
A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes.
What are three functions of lysosomes?A lysosome has three main functions:
The breakdown of macromolecules , Cell membrane restoration, and Responses against ailen substances.Thus, lysomome cellular organelle performs a similar function for cells.
To learn more about lysosomes click here:
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give This question a shot and I’ll give you brainliest no links posted on My question or I will report you
Answer:
B) 113
Explanation:
Answer:
If we convert 45 degrees Celcius to Farenheit, we will get 113 degrees Farenheit
Which of the following thrive in tropical areas and absorb light?
Greener Air Plants
Grayer Air Plants
Answer: Greener air Plants
Rocks that are formed from sediment that has been compressed over time and becomes solid are called ______________ rocks *
1 point
igneous
metamorphic
sedimentary
Plzzzzzz help ME NEED IT BY TODAYYY
Answer:
Metamorphic, :b
Explanation:
Lol, hope this helps ;B
AB blood type illustrates the principle of
The AB blood type has both A and B alleles.This illustrates principle of co-dominance
In whole-genome shotgun sequencing, the chromosome is cut into pieces, the pieces are sequenced, and the sequences are aligned based on overlapping sequences into a contig. Place the fragments of DNA in the proper places to form the contig for this sequence of DNA, using the central CAT sequence as a guide. ResetHelp CATCGAGCATCGAG CCAGGCCCCAGGCC GGCCATCGGCCATC AGGCCATAGGCCAT CCATCGACCATCGA
Answer:
CCAGGCC
CCATCGA
GGCCATC
CAT
AGGCCAT
CATCGAG
Explanation:
Shotgun sequencing is a method used to determine the nucleotide sequence of entire chromosomes/genomes. This sequencing method consists of obtaining random DNA fragments which are subsequently classified by bioinformatic tools that ordering them according to overlapping sequences called contigs. In the whole-genome shotgun (WGS) technique, the entire genome of an organism is sequenced, being the critical factor the depth of sequencing, which refers to the quality of the sequencing reads (e.g., a depth of 20X indicates that the genome is sequenced 20 times by a sequencing machine). For the human genome, WGS became available after the completion of the Human Genome Project (HGP), which enabled the generation of a reference sequence for the whole human genome. The steps of the WGS technique are the following:
1. Preparation of isolated chromosomes
2. The DNA is sheared into small fragments
3. The DNA fragments of about 1 kilobase (1000 base pairs) are incorporated into plasmids which are cloned to render pure samples of each DNA fragment
4. The plasmid clones are sequenced by sequencing machines
5. Bioinformatic tools finally are used to link DNA fragments by their overlapping ends
Based on the information given above, which of the following models best represents the relationship between zooplankton , minnows, and largemouth bass in a freshwater ecosystem?
Chose the correct image to answer the question above. NEED THIS FAST
Answer:
Option C: Minnows have a direct negative effect (⇒(-)) on the population size of zooplankton. Basses have a negative effect (⇒(-)) on the population size of minnows. Basses have an indirect positive (---> (+)) effect on zooplankton.
Explanation:
In the trophic web occurs a process of energy transference through different organisms that places at different levels. Each level feeds on the preceding one and becomes food for the next one. The first link is an autotroph organism or producer. The following links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
If any of the links change their population size (increasing it or decreasing it), it affects the superior links and the immediately anterior link.
In the exposed example, zooplankton, minnows, and basses are continuously interacting.
Minnow →(-) ZooplanktonMinnows feed on zooplankton. So they affect direct and negatively the invertebrate population. The more minnows there are, the more zooplankton they eat. So, as long as the minnows population keeps growing, the zooplankton population will be more affected because they will not have enough time to reproduce and recover from predation.
Bass →(-) Minnows
Bass feed on minnows, so they also affect direct and negatively the fish population. And the more the bass population grows in size, the more affected the minnows will be because many more basses will be eating them.
Bass ---->(+) Zooplankton
On the other hand, by negatively affecting the minnows population, basses will be indirectly and positively influencing the zooplankton population. This fact is because the more minnows basses eat, the fewer fishes there will be to prey on zooplankton. So the invertebrate will have enough time to recover its population size. The predation pressure acting on zooplankton will decrease thanks to the action of basses preying on minnows.
Here there is a natural equilibrium between the three species. It is a representation of typical cycle predator-prey.
Minnows prey on zooplankton. Minnows population grows, and the zooplankton population decreases.As the minnow population grows, there is more available food for basses, who eat more minnows. As the bass population increases, the minnows population decreases in size. And as there are fewer minnows, the zooplankton population will increase. If minnows decrease in number, basses will decrease in number too. Minnows will not be severely affected by basses, so their population increases again. As zooplankton also increased, there will be more available food for minnows that will keep reproducing. And the more minnows there are, the more available food for basses there will be. And basses population will increase again. So you can see that zooplankton is indirectly and positively affecting the basses population too (not shown in images).You eat at chips and salsa at Qdoba. All that salt causes your cells to lose water through
osmosis. Your hypothalamus senses that your cells are shrinking
and sends a message to the
pituitary to release antidiuretic hormone. ADH sends a message to the kidneys to stop
releasing water in the urine. You also start to feel thirsty. The result is that your cell's water
level increases back to normal. This is an example of
A: Negative feedback
B: Positive feedback
Answer:
B
Explanation:
this is going to cause your body cells to hold water
What happens to water on Earth’s surface as it is heated by the sun? What is this process called?
Explain your answer.
Answer:
As the water is heated by the sun, water vapor is created and released into the air (process is called evaporation)
Explanation:
The heat coming from the sun heats up the water droplets and turns those droplets from a liquid into a gas (water vapor)
how can identifying birds in your area help scientists
Answer:
it can help them by seeing what birds are in your area an any new species that might have traveled to your area but it can also help scientist learn about some of the birds.
Birds contributing their data go beyond identifying birds to recording their sightings and additional details. then they deposit their records online in a permanent archive.
Question 9
O Mark this question
Being left-handed (represented as I) is a recessive trait. Jim and Suzie are both left-handed.
If they have a child, which of the following could be his/her genotype?
O LL
O Either Ll or II
OLI
II
SAVE AND CONTINUE
The correct option is (2) either LI or II .
The term genotype refers to the genetic component of a trait.
The phenotype is the genotype's visible manifestation.Due to the fact that an existing DNA strand is used to make a new strand, DNA replication is known as semiconservative.What does the term genotype mean?The type of variant present at a specific locus (i.e., region) in the genome is scored by what is known as a genotype. Symbols can be used to symbolize it.There are three different genotype types: hetrozygous, homozygous recessive, and homozygous dominant.Learn more about genotype brainly.com/question/20730322#SPJ2
can you please help me
Answer: 15. Oxygen. 16. Cortex. 17. epiglottis
Explanation:
what is the role of microorganisms in food preservation?
Answer:
Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms.
Explanation:
Nature uses microorganisms to carry out fermentation processes, and for thousands of years mankind has used yeasts, molds and bacteria to make food products such as bread, beer, wine, vinegar, yogurt and cheese, as well as fermented fish, meat and vegetables reduce food spoilage.
^Hope it helps, Hazel^ In guinea pigs, the short hair trait is dominant. If two heterozygous guinea pigs were crossed, what would be the phenotypes of the offspring? *
A. 100percent short hair
B. 75 percent short and 25 percent long.
C. 50percent short and 50 percent long
D. 25 percent short and 75 percent long