Answer:
True
Explanation:
A ______________ stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells A ______________ stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells Gram stain Simple stain Endospore stain Capsule stain
Answer:
Simple.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
Cell staining can be defined as a method used by scientists to view the cells of living organisms and its cellular components with the aid of microscope.
A simple stain uses only one dye to enable the viewer to observe the size, shape, or arrangement of cells. It typically involves the process of soaking a smear (thin film of living microorganisms) in dye and then rinsing it afterwards in order to visualize size, shape or arrangement of cells and other cell organelles such as mitochondria, cytoplasm, nucleus, golgi apparatus etc.
An igneous rock contains one half of its original amount of K(potassium)-40. how old is the rock
Answer: 1.251 billion years
Explanation: The half-life of potassium 40 is 1.251*10^9 years. Since in the igneous rock there is one half of potassium left it means only one half-life has passed.
During DNA replication each strand of dna is used as a template to produce a complementary strand of DNA This process is shown below which base will attach to location 2
A) Allimene
O
B) Adenine
O
C) Thymine
O
D) Tyrosine
70 POINT QUESTION-!
(Marcus is the parent dad, and Olivia is the parent mom. Violet, Jonas, Nathan, and Claudia are the children. Total of 6 people in the family. Please answer each question carefully.)
Marcus's genotype for eye color is bb. Olivia has brown eyes, but she is heterozygous for the trait.
Questions: (have an answer for each question)
What percentage of the children have blue eyes?
If Violet has green eyes and Jonas has brown eyes, what is Claudia's genotype?
How many people in the family have blue eyes?
Please answer correctly, thank you in advance <3
Answer:
50% of children will have blue eyes
Claudia's genotype is bb
3 people
Explanation:
Answer:
the answer for the first one is 100% b is probaly
a hybird or something and for c its 4 people
Hydrogen fuel cells are more environmentally friendly than biomass energy in which of the following ways?
1-Carbon dioxide is produced when hydrogen is produced from water in hydrogen fuel cells.
2-No emissions of carbon dioxide from the fuel cell when hydrogen is produced from water.
3-Volatile organic compounds are produced from the production of hydrogen fuel cells.
I only
II only
I and II only
I and III only
Answer:
Answer: II ONLY
Explanation:
"No emissions of carbon dioxide from the fuel cell when hydrogen is produced from water" is the only one that is an advantage, not a disadvantage, and makes sense.
I got it correct on the quiz.
Is the following sentence true or false? The cell wall lies inside the cell membrane.
Answer:
True
Explanation:
What do you expect to happen if you increase the amount of greenhouse gases in the atmosphere?
Please help ASAP!!!!!!!
I NEED THIS QUESTION SOON AS POSSIBLE
"thank for the points"
Which among the following statements is correct?
(A) Diseases caused by microbes maybe acute or chronic
(B) Diseases caused by microbes are always chronic
(C) Diseases caused by microbes are always acute
(D) None of the above
by microbes maybe acute or chronic
difference between golgi apparatus and endoplatic reticulum
Answer:
Golgi apparetus helps in secretion of mucus,enzymes and hormones while endoplasmic reticulum serves as the pathway for the distribution of materials from one part of the cell to the other.
In one year, 35 giraffes are born to a population. What does this number represent?
Answer:
It is meant to say that there is less population of giraffe in Jungle.
Explanation:
If there was 35 giraffes are born to a population in 1 day than tthere is more population. But in question said that in a year.
please what is the adaptive behaviour of a mosquito
Natural selection is when
decides who survives and who doesn't?
Answer:
Nature
Explanation:
Natural selection is when nature decides who survives and who doesn't. Therefore, option A is correct.
What is natural selection?The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. This variety indicates that some people have characteristics that are more environment-appropriate than others.
For instance, giraffes' long necks have allowed them to consume plants that other animals cannot.
Natural selection happens when people with a particular genotype have a higher chance of surviving, reproducing, and passing on their alleles to the following generation than individuals with a different genotype. Hence, option A is correct.
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The energy from sunlight is used during photosynthesis to
Answer:Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.
Explanation:
how many approaches are there in psychology what are they?
how do flowering plants reproduce ( secually, asexually, or both
Answer: Flowering plants can reproduce both by sexual and asexual means of reproduction. Sexual reproduction involves the fusion of male and female gametes which takes place through pollination by birds, insects, and water. This pollination causes the fertilization and the female ovules grow into seeds.
Explanation: No need to thank me
Answer: Both, depending on what type of flower the plant is. Some plants reproduce asexually, while other reproduce sexually. Some plants reproduce both ways. Therefore, it depends on the type of flower/plant the flowering plant is.
I hope this helps! May I please have brainliest? :>
The global fish intake for humans in a year from the ocean is equal to the organic
content produced by bacteria in the sea for -
A: 90 minutes
B: 90 days
C: 90 years
D: 90 seconds
Answer:
The answer is A:90 minutes
Which are the oldest layers of rock?
at bottom of strata
at top of strata
in middle of strata
2nd layer of strata
Answer:
Its the bottom because its located in the bottom
Explanation:
a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.
A protein containing more than one polypeptide chain exhibits the ________ level of protein structure.
Answer:
D.)quaternary
Drag each label to the correct location on the image. Match each food chain and web component to the correct image. producer primary consumer secondary consumer decomposer
Can you please attach the image so I could help?
Answer:
Lion= secondary consumer
plants=producer
worm=decomposer
girraffe=primary consumer
Explanation:
Why is desalination not widespread around the world right now?
Before DNA replication, how many molecules of DNA make up a chromosome?
Answer:
Figure 7 The number of DNA molecules in a chromosome: (a) a chromosome prior to replication contains a single DNA molecule; (b) a chromosome that has been replicated and consists of two chromatids, each comprising a single DNA double helix molecule.
Explanation:
If a mother and father are both heterozygous for Brown hair (B) over blond hair (b), what will their offspring look like? on a punnett square?
Answer:
My best answer is domaint hope this helps
Explanation:
Answer:
domanit is your answer. hope this helps
Summarize how plants get energy
Answer:
Plants convert energy from sunlight into sugar in a process called photosynthesis.
Explanation:
Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen
Answer:
Plants convert energy from sunlight
Explanation:
What would happen if we did not have Start Codons?
A. Polypeptide chains would continue to grow
B. Protein synthesis wouldn't occur
C. Amino acids would bind to tRNA
D. mRNA would form a double strand
Answer:b
Explanation:
Without the presence of start codons, Protein synthesis would not occur. Option B is correct.
In the synthesis of proteins, codons are referred to as the genetic codes that represent each of the amino acids that form the protein. These codes are in groups of three base nucleotides. The mRNA or messenger is the carrier of the code that will be responsible for the production of a certain protein.
A start codon is a three-base pair of nucleotides that holds the code needed to initiate the protein synthesis. The most common start codon in humans is AUG. Without the start codons, mRNA would still be taken to the ribosomes for protein synthesis but the process would not be able to begin.
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what are stem cells?
Answer:
Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells
Explanation:
Totipotent (or Omnipotent) Stem Cells.
Pluripotent Stem Cells.
Multipotent Stem Cells.
Oligopotent Stem Cells.
Unipotent Stem Cells.
In the last step of DNA replication, what does
the DNA polymerase do?
Answer:
Enzymes known as DNA polymerases are responsible creating the new strand by a process called elongation. ... DNA polymerase then adds pieces of DNA, called Okazaki fragments, to the strand between primers. This process of replication is discontinuous as the newly created fragments are disjointed.
Explanation:
A population of bats feeds on flying insects. Some of these bats have a gene that results in much stronger flight muscles than those of the other bats in the area. Explain how this variation could lead to evolutionary change within this species of bat. In your answer, be sure to include an explanation of
Complete question:
A population of bats feeds on flying insects. Some of these bats have a gene that results in much stronger flight muscles than those of the other bats in the area. Explain how this variation could lead to evolutionary change within this species of bat. In your answer, be sure to include an explanation of
Competition within the bat populationSurvival of various individuals within the bat populationHow the frequency of the trait for stronger flight muscles would be expected to change within the bat population over time.Answer:
Animals with the gene of stronger muscles are better competitors, which means more chances to survive and to reproduce. When they reproduce they pass the gene to the progeny, increasing the allele frequency in the population, probably until fixating it.
Explanation:
Within a population occurs competition among individuals for different resources such a food, territory, refuge, access to females, among others. Feeding habits result in a very important factor that models the species structures, and that might even result in the differentiation of the species into subspecies. Competition for food acts as pressure for animals leading them to develop new strategies for food access. In the exposed example, one of these new strategies is related to a better flight, which is possible due to the gene that results in much stronger flight muscles. Individuals that develop stronger flight muscles are more competitive and probably improve their social status, not only because they can get access to more and better food, but also because this means a better genetic charge which makes them better for mating. These animals have more chances to survive and reproduce: they are stronger and they feed better than the other individuals. The stronger flight muscles are not only useful for feeding, but also for avoiding predators, and for competition. Animals with this gene probably live longer.
Natural selection is the result of the phenotype-environment interaction which determines gene destiny in space and time, selecting beneficial alleles and increasing their frequency in the population. The mutation in the gene of muscle development turns to be beneficial for the species. Animals that carry the gene have more chances to mate and reproduce, and hence to pass the gene to the progeny. In this way, the allelic frequency will increase within the bat population over time.
The study of an environment is called ecology.
The difference in the genes in the given population is called variation and this variation leads to the formation of a new character that has a higher chance of surviving in nature.
These variants have the tendency to choose naturally for the environmental condition.
According to the question, if the bats have the stronger muscle to fly they will reach the prey easily and eat them, before the slow-flying.
This leads to increase competition and the inferior species will extinct due to the higher rate of competition.
Hence, the fast-flying bats are selected naturally and inferior species will extinct.
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Based on the position vs. time graph, which velocity vs. time graph would correspond to the data?
A graph with horizontal axis time (seconds) and vertical axis position (meters). A line runs straight upward from 0 seconds 0 minutes.
A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A line runs in straight segments from 0 seconds 0 meters per second to 1 second 15 meters per second to 2 seconds 20 meters per second to 4 seconds 20 meters per second to 5 seconds 0 meters per second.
A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A straight line begins at 0 seconds 0 meters per second and runs to 5 seconds 5 meters per second.
A graph horizontal axis time (seconds) and vertical axis velocity (meters per second). A straight line begins at 0 seconds 2 meters per second and runs to 5 seconds 2 meters per second.
A graph labeled velocity versus time with horizontal axis time (seconds) and vertical axis velocity (meters per second). A straight line begins at 0 seconds 10 meters per second and runs to 5 seconds 2 meters per second.
Answer:
C is the correct option
Explanation:
based on the data for the groups of cells cultured with 0.1 serum (groups 3 to 7), identify which of the four proteins tested do(does) not appear to play a role in blocking cell cycle entry by fibroblast
Answer:
p18, p21 and p27
Explanation:
Four proteins have been obstructed in this investigation and the concentration of DNA synthesis was evaluated in various cell cultures and seeing which proteins could play a significant role in the cell cycle.
When reproducing, Robins (a species of bird) typically lay four eggs. Laying more eggs might result in malnourished chicks and laying fewer eggs might result in no viable offspring. This is an example of
Answer:
stabilizing selection
Explanation:
The illustration is an example of stabilizing selection.
Stabilizing selection is an evolutionary mechanism in which the extremes of traits are selected against, leading to an increase in the frequency of such traits in the population.
Laying too many eggs would lead to reduced fitness of the population of the bird as a result of malnutrition while laying too few eggs would lead to a reduction in the population. Reproduction needs to be optimized for maximum fitness.
There are different types of natural selection. One of them is stabilizing selection that favors the intermediate phenotype. The exposed scenario is an example of stabilizing selection.
Balancing selection, also called Stabilizing selection, decreases the frequency of individuals with extreme traits, and favors individual that exhibit medium-range characteristics, that gets to survive. Selective pressure is against h0m0zyg0tes, promoting genetic diversity. Genes expressing extreme characteristics in a h0m0zyg0sis are kept in a heter0zyg0us state, as a favorable adaptation to environmental conditions. In a graph, you will see that
→ The curve gets higher and thinner in the middle of the horizontal axe, indicating an increase in the heter0zyg0us genotype frequency.
→ The tails of the curve that coincides with h0m0zyg0us dominant and recessive genotypes frequencies will be near zero.
In the exposed example,
laying more than four eggs and less than four eggs are extreme phenotypes. laying four eggs is an intermediate favored phenotype.
The intermediate phenotype results in the species' fitness increase, so it is favored by natural selection.
Laying four eggs leads to well-nourished chicks, and all of them get to survive. Parents ensure their reproductive success.
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