The four sensations detected by the tactile receptors in the skin are touch, pressure and vibration and tickle.
What are the 4 sensations that the receptors found in the skin have?They are nerve endings formed by a branched axon. They are distributed in almost all parts of the body and capture mechanical (pressure), thermal (cold and heat) and especially painful sensations.
This is because Tactile sensations are the ones that detect touch, pressure, and vibration. About six different types of tactile receptors are known.
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Haploid and diploid are terms that represent the ______ of an organism.
Haploid and diploid are terms that represent the sets of the chromosome of an organism.
What do you mean by chromosomes?The thread-like components known as chromosomes are found in the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA).
When an organism's cells only have one set of chromosomes, the organism is said to be a haploid. All organisms that reproduce sexually are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.
The number of chromosomes found inside a cell's nucleus is known as the diploid chromosomal number. The symbol for this number is 2n. Each organism has a different one. In contrast to sex cells, somatic cells are diploid.
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Explain why genetic diversity is a good principle for secure development. Cite an example of lack of diversity that has had or can have a negative impact on security.
Answer:
Genetic diversity is a good principle for secure development because it is critical for a population to adapt to changing environments. It helps maintain the health of a population.
Explanation:
Genetic Diversity refers to the range of different inherited traits within a species. In a species with high genetic diversity, there would be many individuals with a wide variety of different traits.
Mutations are important to genetic diversity because it creates a new DNA sequence for a particular gene, creating a new allele. This is important because including alleles that are diverse may be valuable in resisting diseases, pests, and other stresses
Genetic diversity is a good principle for secure development because it ensures the chances of adaptation in living organisms with respect to changing environmental conditions.
What is Genetic diversity?Genetic diversity may be defined as the total number of genetic characteristics in the genetic makeup of a species. It serves as a way for populations to adapt to changing environments. It facilitates the survival of particular species.
A lack of diversity may have a negative impact on security. This can be understood by the example that if there were not many variables seen in the Darwin finches in the Galapagos islands, more birds feel the scarcity of food and due to this, they have died and become extinct from nature.
Therefore, with more genetic variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment.
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What happens during a claustrophobic attack?
It can trigger symptoms of anxiety ranging from mild sweating or trembling to fainting or a panic attack.
It can trigger symptoms of anxiety ranging from mild sweating or trembling to fainting or a panic attack.Common claustrophobia triggers include small rooms, elevators, closets, MRI scanners, airplanes, and other small or tight spaces.
What are the products of Anaerobic Respiration in yeast?
The products of anaerobic respiration in yeast are carbon dioxide and ethanol.
Anaerobic respirationThis refers to respiration in the absence of oxygen.
In the absence of oxygen, both the citric acid cycle and the electron transport chain cannot proceed. Thus, only glycolysis takes place.
The two pyruvate molecules produced in anaerobic respiration in yeast are converted to ethanol, instead.
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Which is transported in the xylem of a plant?
A. Dead material
B. Water
C. Chloroplast
D. Blastocysts
Answer:
water
Explanation:
water and other dissolve material are transported in the xylem of a plant
Which of the following correctly describes the relationship between thermal energy and
temperature?
Select one:
O a. Temperature is a measure of thermal energy
O b. Temperature and thermal energy are the same thing
Both conductors and insulators transfer thermal energy, but not electrical energy.
One of them does not transfer energy.
O d. Both conductors and insulators transfer electrical energy, but not thermal energy.
Question 11 of 30
Which of the following factors affecting population growth is density
independent?
Answer:Density-independent limiting factors affect all populations the same, regardless of population size. Density-dependent limiting factors include disease, parasites, competition for food, water, and shelter, and predation. Density-independent limiting factors include natural disasters, climate, and human activity.
Explanation:
A titmouse and a chickadee are living in the same territory and are using some of the same resources. the best way to classify this interaction is as:
The best way to classify an interaction between titmouse and a chickadee living in the same territory and using some of the same resources is competition.
What is competition?Competition is an interaction between living organisms or species in which both require a resource that is scarce in supply.
According to this question, a titmouse and a chickadee are living in the same territory and are using some of the same resources.
This suggests that the interaction between titmouse and a chickadee living in the same territory and using some of the same resources is competition.
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The initial period of population growth for a species in an environment is _______. a. linear b. exponential c. slow d. negative Please select the best answer from the choices provided A B C D
Answer:
b
Explanation:
Initial period of population growth is most likely to be exponential and then slowly reach a point of "equilibrium" where the population is stable. Meaning the death and the birth are balancing it out.
Answer:
b. exponential
Explanation:
Which of these is a negative form of a plant tropism?
Answer:
Gravitropism is a common example which can be used to describe negative tropism.
Gravitropism is an example.
When a plant grows upwards and is defying gravity.
Therefore, it is negative gravitropism.
How is research from college/ universities doing to help stop coronavirus or stop the spread?
Answer:
I added an answer I am afraid it was wrong and I am new I don't know how to delete an answer, so I just edited and wrote this
Explanation:
Answer: i do not know
if this is correct
Explanation:
1. Conducting research
2. Sharing data and information
3. Boosting medical personnel
4. Putting idle facilities to good use
5. Offering ethical guidance
High population densities in urban areas have advantages and disadvantages. List as many of each as you can and defend your conclusion. How could the disadvantages be eliminated or reduced? Use evidence to support your conclusion.
Advantages :- More human population so more workers in different fields,More economy growth,More tax payers, More funds, More diversity ,More share of people for particular programs.
Disadvantages ;- Burden on economy, More exploitation of natural resources, pollution, deforestation, More use of water resources, more competition for survival :) hope this helps thanks
reviewing Meiosis:
1. Draw a diagram depicting the process if crossing over.
Answer:
I attached a diagram I found online. This one is a bit more general. If you want me to include the PMAT part of meiosis, then just ask.
How do living organisms help the soil
Living organisms such as bacteria, fungi, algae are very important in the soil, they perform several functions, some of which include the following;
- Living organisms help break down dead plant parts, this helps to add more nutrients to the soil
- Living organisms dig up holes in the soil, this helps to maintain aeration in the soil.
- Living organisms play a major role on the production of humus
- Living organisms help to break large particles of rock
- Living organisms such as Rhizobium bacteria help in the fixing of nitrogen
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Living organisms help the soil in the following ways:
Return nutrients to the soil
Make the soil aerated and porous
How do living organisms help the soil?
Living organisms are found inhabiting the soil and in turn confer various benefits on the soil.
These benefits help the soil and make it more suitable for agricultural practices.
Living organisms such as earthworms make the soil porous for aeration when they burrow into the soil.
Microorganisms also degrade organic compounds and release the nutrients into the soil.
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Which compound refer to those that are produced by plants or animals?
Natural compounds
Synthetic compounds
Biotechnology
None of the above
natural compounds I mean all organic compounds
Explanation:
many organic compounds are obtained directly from the plants and animal sources by suitable method of installation a few filling here example are carbohydrate cellulose sugar and starches for prediction of hunters of useful organic substances such as solved synthetic rubber explosive and plastic
Which of the following is considered a sustainable use of a common?
Fishing regulation
Grazing on public land
Plastics in oceans
Water pollution
Answer:
Explanation:
air polution
Which event takes place during normal fertilization?
The event which takes place during normal fertilization is zygote formation.
Which event takes place during fertilization?The major event which is characteristic of fertilization is zygote, otherwise termed cell formation in which case, the zygote is capable of undergoing cell division to form a new living cell. The fusion of two gametes necessary for fertilization kick-starts several reactions in the egg.
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Which membranous structures conduct impulses through the sarcoplasm to stimulate the release of calcium?.
Answer:T-tubules
Explanation
The action potential invades T-tubules and causes the L-type calcium channels to open, which in turn causes ryanodine receptors (RyRs) in the SR to open and release calcium, which stimulates contraction.
Black coat color is dominant over white coat color in guinea pigs. in addition to coat color, rough coat is dominant over smooth coat.
b. Demonstrate a cross between a heterozygous black/homozygous smooth and homozygous white/heterozygous rough. describe the phenotypes as fractions?
Answer:
Explanation:
C = dominant black coat
c = recessive white coat
T = dominant rough coat
t = recessive smooth coat
Heterozygous black coat + Homozygous smooth guinea pig genotype:
Cc tt
homozygous white/heterozygous rough:
cc Tt
Punnett Square
After looking at Punnett squares attached, we can see that 1/2 of offspring are either black or white and 1/2 of offspring are either rough or smooth.
Cc - black coat - 2/4 - 1/2
cc - white coat - 2/4 - 1/2
Tt - rough coat - 2/4 - 1/2
tt - smooth coat - 2/4 - 1/2
There are economic concerns surrounding the products that have been genetically engineered for
particular traits, including pharmaceutical products, crops, and enzymes used in manufacturing
processes. What are the proposed economic concerns that affect society? Check all that apply.
Prices for genetically engineered products are raised as a result of patents on products.
Farmers must spend more money to obtain genetically engineered seeds for desired crops.
Consumers must spend more money to purchase genetically engineered products.
More land is utilized for genetically engineered crops than for organic crops.
RETRY
The genetically engineered foods are those foods that are produced by the process of genetic engineering (options B&C)
What are genetically engineered foods?The genetically engineered foods are those foods that are produced by the process of genetic engineering. They are specifically designed for various purposes.
The economic concerns that affect society regarding the genetically engineered foods are;
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(a) Explain why red blood cells burst when placed in some solutions of sodium chloride.
Answer: Red blood cells placed in a solution with higher water concentration compared to their contents will gain water by osmosis that will then swell up and then burst.
Explanation:
Osmosis causes red blood cells to release water when they are exposed to sodium chloride solutions that are more concentrated than their internal environment (hypertonic solutions).
Hemolysis is the term for this process. In an attempt to balance the solute concentration, water is pulled out of the cells by the high concentration of sodium chloride outside the cells, creating an osmotic gradient. The result is that the cells shrink and may eventually rupture or burst. Lack of water reduces internal pressure and destabilizes cell membranes, causing red blood cells to burst.
This phenomenon underscores how important it is to maintain the correct balance of solute concentrations to protect the structural and functional integrity of red blood cells.
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1. Define Isogamous with example.
2. Define Anisogamous with example.
3. Define Oogamous with example.
Answer:
1. Having two similar gametes in which no differentiation can be distinguished, or reproducing by the union of such gametes.
e.g. in Spirogyra and Ulothrix
2. Anisogamy refers to a type of sexual reproduction in which two dissimilar gametes unite or fuse. The gametes may differ in size or form.
Example : human beings, the male gamete sperm is smaller and motile while the female gamete egg is non motile and larger.
3. having or involving a small motile male gamete and a large immotile female gamete.
E.g. Volvox, Fucus
All cells have ribosomes.
However, some cells have more
ribosomes than others.
the
Which cells have the MOST
ribosomes?
A. Cells that produce proteins.
B. Cells that produce energy.
C. Cells that are involved in reproduction.
Answer:
B
Explanation:
Ribosomes main purpose is to make proteins from the process called translation. This is the second step in the process.
Which scientists atomic model is more recent
The more recent atomic model is known as the “electron cloud” model.
What is the “electron cloud” model?The “electron cloud” model is a theory used in physics to explain the position and relative arrangement of atomic elements.
According to this model (electron cloud), negatively charged electrons for clods around atomic nucleus.
In conclusion, The more recent atomic model is known as the “electron cloud” model.
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Dihybrid crosses In humans, rolling tongue is dominant over non-rolling and curved thumbs are dominant over straight thumbs. do a cross between: heterozygous roller/heterozygous curved and homozygous non-roller/homozygous straight. describe the phenotypes as fractions?
Answer:
Heterozygous roller/heterozygous curved, heterozygous roller/homozygous straight, homozygous non-roller/heterozygous curved, homozygous non-roller/homozygous straight
Explanation:
How does sucrose move from source to sieve?
The sucrose move in source to sieve by active transport.
What is active transport?Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.
In this case, the sucrose moves from companion cells into source to sieve elements by active transport. This reduces the water potential of the source to sieve element by osmosis, which increases the hydrostatic pressure.
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The area around the Sahara Desert is slowly changing into a dry region, similar to the desert. Which trait is most likely to be selected in the population of plants growing in this region?
A.
trait encoding for short plant structure to reduce transport of water
B.
trait encoding for thick bark on trees
C.
trait encoding for increased leaf size to increase photosynthesis
D.
trait encoding for fruit
The trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.
How are desert plants adapted?Adaptation is any change that is made or undergone to suit a condition or environment.
Desert plants are adapted to the dry condition of the area by the possession of several traits.
According to this question, the area around the Sahara Desert is slowly changing into a dry region, similar to the desert.
This suggests that the trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.
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Answer:trait encoding for short plant structure to reduce transport of water
Explanation:The Sahara Desert is a zone which receives very low or no precipitation. This region receives maximum of sunlight not received by any other biome. The soil is typically sand which is highly porous and lacks essential growth nutrients necessary for plant growth. The plants grown around Sahara Desert are xerophytic plants. These plants undergoes several adaptations in order to prevent loss of water through transpiration. Trait encoding for short plant structure to reduce transport of water is a xerophytic adaptation.
a woman going through menopause may take ________ to minimize the symptoms.
A woman going through menopause may take estrogen as part of hormone replacement therapy.
What is menopause?Menopause is the period in a woman's life in which she stops menstruation. This is because the woman's ovaries stops producing eggs and the level of the hormone estrogen is reduced.
To minimizethe symptoms associated with onset of menopause, a woman going through menopause may take estrogen as part of hormone replacement therapy.
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Grouping of objects help the shopkeeper, justify the statement.
explain the roles of mRNA and tRNA
