What is the function of the central nervous system?
a) to relay messages
b) to analyze information
c) to process information
d) all of the above
The TAS2R38 gene encodes a receptor protein that influences the ability to taste bitterness. The gene has two alleles: a dominant, wild-type allele that enables an individual (taster) to taste bitterness and a recessive, mutant allele that interferes with the ability of an individual (nontaster) to taste bitterness. In a sample of 2,400 people, 1,482 were found to have the dominant (taster) phenotype. Assuming that the population is in Hardy-Weinberg equilibrium, approximately how many individuals in the sample are expected to be heterozygous for TAS2R38
Answer:
The correct answer is - 1133.
Explanation:
According to H-W equilibrium;
p2 +2pq + q2 = 1 ........... eq.1 and
(p+q)2 = 1 ..............eq.2
Here q = frequency of the recessive allele,
and p = frequency of the dominant allele in the population
The genotype of p2 + 2pq shows the dominant(taster) phenotype.
The genotype of q2 shows the recessive(non-taster) phenotype.
q^2 = (2400 - 1482)/2400
= 0.3825
= 0.618
using eq. 2 we get p= 1-q
=0.382
2pq = No. of heterozygotes/2400
No. of heterozygotes = 1133.1648
why many are dying because of having Co.vid Vaccine??
Answer:
milllions of millions people
is not sleeping bad for u
hi I didnt sleep for 16 hours and I have messed up sleep pattern
will i commit no alive
Answer:
It depends. 16 hours is a long time not to sleep. You need to sleep though. Your body needs at least 8 hours of sleep. But you need at least 5 to 6 hours of sleep. So your body can regenerate itself.
Explanation:
PLEASE HELP FAST!!!!
As humans continued to burn more and more oil and natural resources what has happened
to the world's carbon dioxide output?
Answer:
Global warming 100% one of them. And Air pollution.
Explanation:
Good luck
In the logistic growth model, as a population approaches the carrying capacity, what happens to its growth rate?
A
becomes exponential
B
doubles
C
increases
D
slows to zero
In the logistic growth model, as a population approaches the carrying capacity, the growth rate of the population will slow down to zero. Thus, the correct option is D.
What is Logistic growth model?The logistic growth model is a parameter which represents the rate at which the population would grow if it were unencumbered by the environmental degradation. A second parameter, that is K, represents the carrying capacity of the system of species which are being studied.
In logistic growth, a population's per capita growth rate gets smaller and smaller as the population size when it approaches a maximum imposed by the limited resources in the environment, known as the carrying capacity (K). Exponential growth model produces a J-shaped curve, while logistic growth produces an S-shaped curve.
Therefore, the correct option is D.
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Please help honest answers only!! How could wildfire immediately impact competition in a forest ecosystem? (1 point)
Competition would decrease. Many ecosystems rely on wildfire to restore nutrients and germinate seeds; therefore, wildfire would
increase resources available, lowering competition
Competition would increase. Wildfire would increase the scarcity of resources, causing individuals to compete at higher rates.
Competition would remain the same. Wildfire would increase the scarcity of resources and decrease individuals competing.
effectively balancing each other out.
Competition would decrease. Wildfire would decrease the number of individuals competing for resources, making more resources
available per individual.
Answer:
I think its b. Competition would increase. Wildfire would increase the scarcity of resources, causing individuals to compete at higher rates.
Explanation:
not 100% sure tho
Wildfires can immediately impact competition in a forest ecosystem because wildfires would increase resource scarcity, causing individuals to compete at higher rates.
What are the consequences of forest fires?In addition to destroying native vegetation and killing many wild animals, a forest fire can also cause serious financial damage and even endanger the lives of people and domestic animals.
With this information, we can conclude that wildfires can immediately affect competition in a forest ecosystem because wildfires would increase resource scarcity, causing individuals to compete at higher rates.
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Which of the following is an example of genomic imprinting in humans? Which of the following is an example of genomic imprinting in humans? A random pattern of autosomal allele inactivation is observed. In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed. The maternal and paternal alleles of a gene pair are both expressed. Human males have only one Y-chromosome and one X-chromosome. One of the two X-chromosomes in females is randomly expressed and the other is repressed.
Answer:
In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed.
Explanation:
Genomic imprinting is an epigenetic phenomenon where alleles are differentially expressed depending on their parental origin (for example, paternally expressed when it is inherited from the father). Genomic imprinting is controlled by epigenetic modifications (for example, DNA methylation, histone acetylation, etc) which works together to preferentially activate the expression of the allele inherited from one parent and simultaneously silence or “imprint” the expression of the allele inherited from the other parent. In humans, an example of genomic imprinting is the case of the insulin-like growth factor 2 (Igf2) gene, which is maternally imprinted (repressed), thereby this gene is only expressed from the paternal allele.
Factors that control traits are called?
a. genes.
b. purebreds.
c. recessives.
d. parents
Answer:
A. Genes
Explanation:
A brown guinea pig mates with a white guinea pig. All of the babies have tan, or light brown fur. The hair color trait in guinea pigs is probably ____.
1. Sex linked
2. Recessive
3. Incomplete dominance
4. Codominant
Answer:
It would be sex linked.
Explanation:
As you know (if you do), when two animals mate, they combine their genes to make a baby. So of their skin colors are different like one is brown and one is white, then you get a baby that would look brownish white or have spots that are brown or white.
why is the air temperature in the rain forest of Peru so warm?
Answer:
Because Peru is located between the equator and Tropic of Capricorn. Since it is in the tropics, one might expect Peru to be a country of extreme heat and heavy vegetation.
Explanation:
2.The horned lizard is often called a horned toad because of its short, fat body and small tail.
When this lizard finds a coyote, it will spray blood from its eyes at the coyote. Then the lizard will run a short distance and stay very still to blend into the background.
Why does the horned lizard do this?Lector inmersivo
(1 Punto)
Horned lizards do this to play with the coyote.
Horned lizards do this to attract other horned lizards.
Horned lizards do this to catch and eat the coyote.
Horned lizards do this to escape from the coyote.
I’ll mark brain list if you answer all of them
True or False - Deoxygenated blood is blue
Answer:
True beoxygenated blood is blue
Which statement best explains the economic drawback of using geothermal energy over energy generated by fossil fuels?
More cost-effective over time
Higher installation costs than fossil fuel plants
More energy plant locations available
Less pollution than fossil fuel plants
Answer:
More cost-effective over time
Answer:
Could it be the higher installation costs than fossil fuel plants????
Explanation:
5. What does EGS stand for in geothermal energy?
A) Engraved Geothermal System
B) Enhanced Geothermal System
C) Exhaust Gas System
D) Engineered Geophysical System
(EGS) stands Enhanced Geothermal Systems which can greatly increase geothermal energy utilization. Therefore, option (B) is correct.
What is EGS?Enhanced Geothermal Systems (EGS), which are also referred to as engineered geothermal systems on occasion, present a significant opportunity for significantly broadening the application of geothermal energy.
In an EGS, fluid is injected into the subsurface under conditions that are carefully regulated. This causes previously closed cracks to reopen, which in turn creates permeability in the rock. The increased permeability of the rock makes it possible for fluid to move freely within the newly fractured rock and for heat to be transported to the surface, where it can be used to create electricity.
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This is an example of which factor that affects biodiversity?
pollution
nonnative species
habitat destruction
poaching
Answer:
Several years ago, fish from Asia were introduced into ponds in the United States. They have rapidly grown in numbers and use up a lot of the food and habitats of other fish that are natural to the United States.
This is an example of which factor that affects biodiversity?
pollution
nonnative species
habitat destruction
(poaching)
Explanation:
Or you can just say D
Several years ago, fish from Asia were introduced into ponds in the United States. They have rapidly grown in numbers and use up a lot of the food and habitats of other fish that are natural to the United States. Thus, option "D" is correct.
Why Poaching is illegal?Poaching is the act of illegally killing an animal. The very prominent subject of poaching is the rhino, some species of which are now virtually extinct due to extensive illegal hunting. However, many other animals are also poached. For example, elephants are poached for the ivory in their tusks. Tigers are poached as trophy animals or for traditional medicine. Sea turtles and lemurs also suffer a similar fate for similar reasons.
Thus, option "D" is correct.
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What is the importance of mitosis for unicellular organisms?
A) asexual reproduction
B) sexual reproduction
C) repair of damaged tissue
D) growth
Answer:
A) asexual reproduction
Explanation:
Mitosis plays an important part in the life cycle of most living things, though to varying extents. In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Answer:
hello again
Explanation:
motosis play an important
what should be the daily routine labor requirements in the farm plot? Cite at least 5 daily labor requirements?
Answer:
Explanation:
Labor requirements are the tasks carry out in farms for effective production and these include;
1. Watering...the farmer or worker is expected to water the plants so that they will absorb water for effective growth..
2. Fertilization application for improve yield
3. Weeding to reduce competition for nutrients, space and water with crops.
4. Prunning
5. Harvesting of matured crops.
6 . Transporting of harvested crops.
5 daily requirements in a farm plot are:
Watering of plantsWeedingFertilizinguse of pesticidesTransportationWhat is a farm plot?This is an area of land that is used for agricultural purposes. A farm plot usually has one or more crops planted on the soil.
The farmers has to water the crops daily to ensure that the crops grow well. He also has to weed to reduce competition for the crops.
Using fertilizers helps to improve the yields and pesticides drives unwanted insects from the crops.
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Crossed extensor reflex is a
Answer:
The crossed extensor reflex is a type of motor response that occurs to tactile stimulation of a lower limb. This, like other reflexes, is an indication of the proper integration and development of the central nervous system.
Explanation:
Stimulation on one side of the body can produce, in addition to the ipsilateral response. The crossed extensor reflex is a type of motor response, reciprocal innervation is involved: the flexor muscles of the stimulated limb contract at the same time that the extensors of said limb are inhibited. Coupled with flexion of the stimulated limb, the reflex produces an opposite effect in the contralateral limb: the extensor muscles are activated and the flexors are inhibited, this cross-extension reflex increases postural support during withdrawal of the painful stimulus.
Fill in the Venn diagram with the items below
Answer:
Prokaryotes : DNA in cytoplasm
Eukaryotes : DNA in nucleus
Prokaryotes and Eukaryotes :
- contain cystol
- bound by membrane
- ribosomes
Which would be an adaptation for living in the tundra?
funnel shaped leaves to help water runoff
deep roots to go into the permafrost
hibernation to lower metabolism in the winter
large ears to release heat
Answer:
C: Hibernation to lower metabolism in the winter
Explanation:
Answer:
C is correct
Explanation:
In a plant that has red flowers red flower color R is completely dominant to white flower color r if the plant is heterozygous for flower color which alleles will be carried by the gametes it produces
Answer:
Red flower color, R.
Explanation:
Red color, expressed as R, is a dominant trait. Dominant traits are always carried to offspring over recessive traits, such as white flower color.
RR = Red color
Rr = Red color
rr = White color
Please help asap (Photosynthesis, look at the image)
Answer:
A: store energy in the form of ATP
The Hawaiian honeycreeper bird has a mutualistic relationship with the Hawaiian silversword plants. The Hawaiian silversword plants have been widely destroyed due to human development in the area
Which of the following explanations BEST predicts how human development will affect the Hawaiian honeycreeper bird population?
Answer:
The Hawaiian honeycreeper bird population will decrease because they rely on the Hawaiian silversword plants for survival.
Explanation:
The destruction of Hawaiian silversword plants due to human development hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.
What is the relationship between Hawaiian silversword plants and honeycreeper birds?Hawaiian honeycreeper bird has a mutual relationship with Hawaiian silversword plants, where the bird feeds on the plant's nectar and pollinates the flowers. If the plant population decreases, it will result in a reduced food supply for the bird which decreases their population size.
Loss of the silversword plants also destroys their habitat which can impact their population. Therefore, human development results in a decrease in the Hawaiian honeycreeper bird population.
However, the loss of the honeycreeper bird population also affects the ecosystem as they play a very important role in seed dispersal and plant reproduction which reduces plant diversity and also negatively impact other species that depend on the Hawaiian silversword plants for food.
Therefore, the destruction of Hawaiian silversword plants hurts the Hawaiian honeycreeper bird population as the bird exists in a mutual relationship with the plants.
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How can biological weathering result in chemical erosion? A.Roots loosen soil and break rock B.plants transpire water vapor C. Large herds trample rocks and break up soil D.bacteria release acids and other agents that break down rock
Answer:
C
Explanation:
It contributes to the breaking down of rocks and landforms
Compare and contrast autotrophs and heterotrophs
Answer:
Autotrophs are organisms that can produce their own food from the substances available in their surroundings using light (photosynthesis) or chemical energy (chemosynthesis). Heterotrophs cannot synthesize their own food and rely on other organisms — both plants and animals — for nutrition.
autotrophs are known are known as producers because they are able to make their own food from raw materials and energy, such as plants, algae and some types of bacteria.
heterotrophs are known as consumers Because they consume producers or other consumers such as dogs, birds, fish and humans.
An estuary collects sediments from the ocean and rivers that feed into it. The sediments swirl around and then settle to form a mudflat. Eel grass is then established on the mudflat. The ecosystem changes over time and ultimately develops into a salt marsh that contains mangrove trees.
Which of the following is likely NOT involved in this example of ecological succession?
A)
The rotting remains of plants add to the fertility of the soil.
B)
The soil becomes so fertile that eel grass is replaced by other plant species.
C)
The roots from plants help stabilize the sediment, keeping it in place.
D)
The concentration of salt becomes so high that all plant life is destroyed.
Can y'all included detail answers on why the other answers are incorrect
answers to ten and tweleve please giving brainlist
Answer:
A and D
Explanation:
the Calvin cycle in photosynthesis doesn't need sunlight and this worksheet seems to focus on energy from the sun and how it is used in plants
How are the outputs (Carbon dioxide water and energy) of respiration used
Answer:
During the process of cellular respiration, carbon dioxide is given off as a waste product.
This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates.
Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.