which is true about a hypotonic solution? a. it has a higher concentration of wtwr and a lower concentration of solutes than another solution
b. ut has a higher concentration of solutes and a lower concentration of water than other solution
c. it has an equal concentration of water and solutes as another solution
d. it has more solutes than solvent than another solution
Answer:
A
Explanation:
A hypotonic solution has a lower concentration of solutes than another solution, but has more water.
Welcome back from your expedition into the cells! Let's see if you paid attention to the molecules that are involved in the smooth muscle contraction. Which neurotransmitter is released from the parasympathetic ganglion?
Acetylcholine is referred to the neurotransmitter that is released from the
parasympathetic ganglion.
Acetylcholine is the main neurotransmitter found in the parasympathetic
nervous system. Its effects are either excitatory or inhibitory. It is a chemical
which is released by neurons to aid transmission of signals to other cells of
the body.
It helps in the contraction of the muscles, peristaltic movement of the
stomach, as a vasodilator etc.
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Applying the systems thinking techniques, outline the practical steps that can be taken to address drought
Some practical steps to address drought may include the implementation of efficient water usage techniques, the protection of vegetation, and the use of methods to retain moisture in the soil.
What is a drought?A drought is classified as the shortage or absence of water for a prolonged period of time in a region. These can be caused by a prolonged lack of rainfall.Other factors include poor water management and lack of vegetation.Methods to avoid droughts.The planting and protection of vegetation, primarily those adapted to dry environments, is important in preventing drought.Furthermore, the correct implementation of efficient water usage techniques can aid in preventing drought by limiting the amount of water that is wasted. Lastly, the use of mulch and other water retainers can be an effective method in keeping the soil moist and aids in the previous two methods.Therefore, we can confirm that the most effective ways to avoid droughts are to practice efficient water use so as to not waste water, to plant and protect vegetation, and to use mulch and other moisture-retaining methods to keep the soil from drying.
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Which part of the sentence given below has an error in it? Lizza and Mike/ lives happily even in a/ small cottage near their farm. 1. lives happily ever after in a 2. No error 3. Lizza and Mike 4. small cottage near their farm "(tejyb nphkt)"
Answer:
Liza and Mike are two persons so that they are plural. Therefore they take '' live'' not' ''lives''
Natural selection, adaptations, genetic variation, and population evolution are all related in terms of changes in phenotypes over
time. Evaluate which statement appropriately describes the relationship between the concepts of natural selection, adaptations,
genetic variation, and population evolution and select the best choice.
A)
8)
Genetic variation exists in a population. Some of the genetic variation
results in different phenotypes. The phenotypes that enhance survival are
called adaptations. Individuals with well-adapted phenotypes are more
Likely to survive and reproduce, leading to population evolution over
generations.
Adaptations exist in certain individuals in a population. The increase in
adaptations causes an increase in genetic variation. The adaptations that
enhance survival lead to larger populations, which further increases
genetic variation. Individuals with well-adapted phenotypes are more
Likely to survive and reproduce, leading to population evolution over
generations.
Genetic variation is high in a population, but random events cause it to
decrease. Populations with fewer individuals and lower genetic diversity
are able to undergo natural selection when selective pressures are high.
The increase in selective pressure causes an increase in adaptations that
are better suited for survival This results in an evolutionary change of a
population
Selective pressures exist in nature and cause changes in a population.
Populations with high selective pressures have higher rates of genetic
change, leading to an increase in genetic variation, Increased genetic
variation leads to some individuals having well-suited adaptations. The
presence of these new adaptations is evidence that the population has
changed, or undergone evolution
o
D)
Answer:
A is the answer
Explanation:
I'm just guessing
Genetic variation exists in a population. Some of the genetic variation results in different phenotypes. The phenotypes that enhance survival are called adaptations. So, the correct option is A.
What is Genetic variation?Genetic variation among members of the same species is called genetic variation. This variation may be due to variations in gene expression, DNA sequence and epigenetic changes. Mutation, genetic recombination, and genetic drift are causes of genetic variation, which can be altered by environmental variables including exposure to chemicals or climate changes.
Genetic diversity is important because it gives natural selection a starting point to work from, helping organisms to adapt and change over time. There is genetic diversity within a population. Different phenotypes are the result of some genetic variation. Adaptations are traits that improve survival.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Natural selection, adaptations, genetic variation, and population evolution are all related in terms of changes in phenotypes over time. Evaluate which statement appropriately describes the relationship between the concepts of natural selection, adaptations, genetic variation, and population evolution and select the best choice.
1. Genetic variation exists in a population. Some of the genetic variation results in different phenotypes. The phenotypes that enhance survival are called adaptations. Individuals with well-adapted phenotypes are more likely to survive and reproduce, leading to population evolution over generations.
2. Adaptations exist in certain individuals in a population. The increase in adaptations causes an increase in genetic variation. The adaptations that enhance survival lead to larger populations, which further increases genetic variation. Individuals with well-adapted phenotypes are more Likely to survive and reproduce, leading to population evolution over generations.
3. Genetic variation is high in a population, but random events cause it to decrease. Populations with fewer individuals and lower genetic diversity are able to undergo natural selection when selective pressures are high. The increase in selective pressure causes an increase in adaptations that are better suited for survival This results in an evolutionary change of a population.
4. Selective pressures exist in nature and cause changes in a population. Populations with high selective pressures have higher rates of genetic change, leading to an increase in genetic variation, Increased genetic variation leads to some individuals having well-suited adaptations. The presence of these new adaptations is evidence that the population haschanged, or undergone evolution.
Answer quick please
Answer:
Area 4
Explanation:
Im pretty sure
mark brainliest if correct pls
Based on the chart, describe the trends that can be observed in animal and plant fossils as they evolved over time. Use evidence from the chart to support your conclusions.
Based on the chart, we can conclude that the first vertebrates were fish. Moreover, the chart also shows that flowering plants are the last plant taxonomic group that emerged on Earth.
In this case, the chart suggests that the earliest vertebrates (fish) evolved during the Ordovician period.
The main animal groups that emerged during vertebrate evolution include (in this order) amphibians, reptiles, mammals, birds and finally humans.
Moreover, according to the chart, the latest major group of plants to evolve were flowering plants during the Cretaceous period.
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A researcher sequences the genome of a variety of bacterial and eukaryotic cells. She finds that the bacterial genome is smaller, but that there are more genes for a given number of base pairs in the eukaryotic cells. In other words, there are fewer genes per unit of length of DNA in the eukaryotic cells. What do you predict she will find if she examines the DNA more closely
From this observation, it is possible to conclude that there are more repetitive sequences in the eukaryotic DNA than in the bacterial DNA. Prokaryotic genes do not contain introns.
Introns are internal non-coding segments of eukaryotic genes that must be removed to produce the final mature mRNA.
In prokaryotic genomes, there are no introns, and genes are expressed in groups known as operons.
Eukaryotic genomes contain highly repetitive intergenic (regulatory) and intragenic (introns) non-coding regions.
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Question 4 I need help with
Answer:
sorry I don't know answer
PLZ HURRY
Which of the following is organized into chromosomes (there may be more than one awnser )
Dna
tRNA
mRNA
None
What evidence could you collect to confirm that the mutation identified in Sam’s DNA causes symptoms of RP?
Answer:
By injecting a functioning copy of the gene mutated in Sam's DNA in the cells of his eyes. Then seeing any reactants damage the cells using a microscope.
Explanation:
The evidence that could you collect to confirm that the mutation identified in a patient's DNA causes symptoms of RP is a model organism that can be used to confirm the mutation.
What is Retinitis pigmentosa (RP)?Retinitis pigmentosa (RP) is a hereditary condition that results in cell loss and breakdown in the retina, which increases light sensitivity and causes tissue lines at the back of the eye.
The mutation is a disorder that is caused by the genetic modification of genes and chromosomes. This causes genetic disorders in the organism, and these defects may be lethal.
These diseases are hereditary, which mean they are transferred from parents to children and some genetic disease can be detected in the fetus of the mother.
Thus, a model organism, identified in Sam’s DNA, causes symptoms of RP.
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I NEED HELP ASAP. Ice cream atomic theory write a summary about the topic. added scientific information definite/indefinite shape & definite/indefinite volume for solids, liquids, AND gases. PLZZZZ HELP ME
Answer:
gang gang
Explanation:
How much weight can a Electromagnet carry
Answer:
500 pounds
Explanation:
I am smarty farty. Also, i just
Did some math that no one understands :C
Answer:
500 pounds
its not that easy to explain
please help me i really would appreciate it
Answer:
i think it's the S phase
Explanation:
During the S phase, DNA replication occurs.
3. Which of the following statements about exergonic (energy releasing) reactions is NOT true?
a. They release energy
b. Glucose metabolism is an example
c. Their products have more energy than the reactants
d. There is a net energy loss
e. Bonds are broken
Answer:
d. There is a net energy loss
Austin is in a study related to Mary Ainsworth's theory of mother-infant attachment. He is securely attached. Therefore, he showed
Austin who was securely attached in Mary Ainsworth's theory of mother-infant attachment likely showed confidence in his caregiver's ability to protect him.
Options to this question were not provided. However, it is worthy to note that Mary Ainsworth's theory of mother-infant attachment classifies the relationship that children have with their caregivers as; Secure, Resistant, and Avoidant.
The Securely attached children are distressed when their mother is absent, they avoid strangers when their mother is not around but become friendly to strangers when their mothers are present.
They are also happy when their mother is around.
Generally, these sorts of children are confident and exhibit high self-esteem. So, Austin must have displayed some of these qualities.
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3. Cell membranes are made from
that are aligned to form hydrophobic and hydrophilic regions.
O A. fatty acids
O B. carbohydrates
O C. lipids
D. phospholipids
Answer:
c. ilpidos
Explanation:
So why the gametes in a single plant are genetically different from each other and also different from the cells in the rest of the plant
Is my answer correct ?
Explanation:
They have unique combinations of chromosomes
They have unique combinations of chromosomes.
What are gametes?
In organisms that reproduce sexually, a gamete is a haploid cell that unites with another haploid cell during fertilization Gametes, commonly known as sex cells, are an organism's reproductive cells.
A female is any individual that generates the bigger kind of gamete—called an ovum—and a male creates the smaller type—called a sperm—in species that produce two morphologically distinct forms of gametes, and in which each individual produces only one type.
The flagellum, a tail-shaped feature that enables the cell to propel and move, is what makes sperm cells, or spermatozoa, tiny and motile. On the other hand, each egg cell or ovum is sizable and non-motile.
Therefore, They have unique combinations of chromosomes.
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when did large mouth bass arrive in nebraska
Explanation:
around 1880 and 1883
i think
What are the odds of a person with AB blood having a child with type O blood
Answer: 1 in 4 chance
Explanation:
Answer:
She is A blood type but like the father, also carries an O version of the ABO gene. As you can see in the image to the right, these two parents can have an O child. In fact, every one of their children would have a 1 in 4 chance for being O. And this is just the most common way an AB parent can have an O child.
Distinguish the characteristics of three (3) types of rocks are essential for soil formation
scientists often test their hypotheses with controlled experiments. which of these is a rule for conducting a controlled experiment?
a. change at least two variables at a time
b. keep all variables constant
c. change as many variables as possible
d. change only one variable at a time
Changing only one variable at a time is a rule for conducting a controlled
experiment.
Controlled experiment involves the use of dependent and independent
variables . Changes in the independent variable brings about a
corresponding change in the dependent variable which is then recorded.
It is however important to note that changing more than only one variable at
a time won't accurately determine if the changes in the results were as a
result of one cause. This is why only one variable has to be changed at a
time.
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Why Should We Add Crickets In Our School Lunches?
Introduction
Answer:
Because it is rich in Protein and also gross
Explanation:
Describe how acid rain would react with rocks overtime.
Answer:
When acidic rainwater falls on limestone or chalk, a chemical reaction happens. New, soluble, substances are formed in the reaction. These dissolve in the water, and then are washed away, weathering the rock.
Explanation:
its true your welcome
A. Form a new question that relates to the interaction of organisms in the ecosystem.
Answer:Predation, parasitism and herbivory are the three interactions which are found in different organisms of an ecosystem.
Lion is a predator which feed on flesh of other animals such as herbivores.
Explanation:
Question 3
After plotting the points on the graph, analyze the results of your experiment. Conclude how different concentrations of
acid affected the solubility of the limestone. Cite evidence from the findings to support your conclusion.
There will be more acid particles to interact with the limestone at higher concentrations hence the rate of reaction increases.
The question is incomplete but I will try to help you the much I can. If you have carried out the experiment properly, you will notice that the rate of reaction increases as the concentration of the acid increases.
This is because, if the amount of limestone is held constant and the concentration of acid is increased, there will be more acid particles to interact with the limestone at higher concentrations hence the reaction proceeds faster.
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how to make soap without the use of oil.
Answer:
its impossible
Explanation:
True or false, as density of ocean water increases, The speed of the ocean currents decreases
Answer: Very True
Explanation:
How does human activity harm or benefit the environment?
Answer: Humans harm the environment in many ways such as overpopulation, pollution, burning fossil fuels, and deforestation. These also, can cause many changes like triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
What is it called when a new cell expresses the traits of a skin cell?
cell specialization
cell reproduction
ocell replication
cell division
Answer:
cell specialization I think