The continuity of the fossil record from ancient to contemporary times may be the strongest fossil evidence supporting evolution.
We don't find things like mammals in strata from the Devonian, the age of fishes, or human fossils alongside dinosaur remains anywhere on Earth. Evolution that is, common descent, gradualism, species diversification, and natural selection are the five hypotheses that Darwin united. A theory is an explanation for how a natural phenomenon functions that has undergone extensive testing through observations and experiments intended to establish the validity of the explanation. In this context, evolution might be considered both reality and a theory. The fact that creatures have altered or evolved over the course of Earth's history is undeniable.
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What is the importance of gametes?
(A)
They engage in binary fission.
(B)
They allow eukaryotes to reproduce.
(C)
They help to produce proteins for the cell.
They are created when a cell splits into two copies of itself.
11. In two cells belonging to the same organism resulting from mitosis I. Amount of DNA in the nucleus II. Chromosome number III. Number of organelles IV. Cytoplasm amount which of the given are exactly the same? A) I only B) I and II C) I, II and III D) II, III and IV E) I, II, III and IV
Answer:
E) I, II, III and IV
Explanation:
Mitosis is a kind of cell division in which two identical daughter cells are produced. The two daughter cells are identical in the sense that they contain the same chromosome number, the same amount of DNA etc.
Prior to mitotic division, the DNA of the original cell replicates and is shared equally between the two daughter cells. The chromosome number is also maintained likewise other cellular components like number of organelles and cytoplasmic content. In a nutshell, mitosis produces two daughter cells that are exactly the same in all ramifications.
13.Hematopoiesis is the formation of
and takes place in the
a. Bone: red bone marrow
b. Blood cells; red bone marrow
Blood cells; yellow bone marrow
d. Bone; yellow bone marrow
Many lethal genetic disorders such as CF, Huntington’s, sickle cell anemia, Tay Sach’s, etc., persist in the human genome.
How have these genes survived so many millennia of evolution (why didn’t they die out)?
These genes survived so many millennia of evolution because most of the genetic disorders are caused due to mutation in genome.
What is Mutation?This is referred to as an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA by different factors.
The factors which cause mutation in individuals are exposure to mutagens or a viral infection which may be due to the high increase in the technology available in the environment in which they live and operate
These genes such as those which cause disorders such as Huntington’s, sickle cell anemia, Tay Sach’s, etc survived so many millennia of evolution because there is still the cause being present in our everyday world which is therefore the reason why it was chosen as the correct choice.
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Ned the Neuron is a pretty busy guy. His job is to fire anytime he sees a vertical line in his visual field. Ned's specialty is ____.
In the scenario where the job of Ned the Neuron is to fire anytime when he sees a vertical line in his visual field. Ned's specialty is feature detection.
The ability to detect certain kinds of stimuli, such as shapes, movements, and angles requires specialized cells in the brain called feature detectors. It means that feature detection is a sort of serial processing in the human information-processing system whereby increasingly complex aspects of the stimulus are processed in sequence. For instance, the visual system has feature detectors for lines and angles of various orientations as well as for more complex stimuli, such as faces.
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In the united states, the vast majority of adult men and women fall in the 12" range of height between feet and feet
Please help
In the United States, the vast majority of adult men and women fall in the range of 12 cm from 5 ft 9 inches for men to 5 ft 4 inches for women.
Women are around 12 centimeters shorter than men overall. The average age-adjusted height for American men aged 20 and up, according to the Centers for Disease Control and Prevention (CDC), was 69.1 inches (175.4 cm) during 2015 and 2016. Approximately 5 feet 9 inches tall, then. This sum is based on information released in December 2018. In the United States, women are typically 5 feet 4 inches tall (or 63.7 inches tall).
Anthropometry is the study of measurements of the human body, such as weight, height while standing, and skinfold thickness. Anthropo is a Greek word that means "human." Metron, which meaning "measure," is where the term "metry" originates from. These measurements are used by scientists to determine averages and trends in human growth as well as to evaluate nutrition.
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1: Describe the Early Ideas about Natural Selection
2: Who was Charles Darwin and what was his contribution to science?
Don't copy from the internet, If you do, Summarize it into an answer no longer than 2-3 sentences and make it your own words
BIG BRAIN ANSWER:
Before Darwin, a naturalist named Jean-Babtiste Lamarck believed that the environment altered the shape of individuals and that these acquired changes were then inherited. Meanwhile, Charles Darwin was a naturalist on a ship called the HMS Beagle, and he discovered that the beak shape varies among finch species in the Galapagos Islands. He found that the beak of an ancestral species of finch had somehow been transported to these islands, and adapted over time to acquire different food sources that were available, causing variation, and that nature just selected for the most suitable beak shape and against less useful ones.
How should the sperm motility be categorized in this microscopic field of a semen sample viewed at 400X magnification
The sperm motility can be categorized in this microscopic field of a semen sample viewed at 400X magnification - Non-Progressive motility = 2; immotile = 3
Fast and slow progressive motility are calculated from the speed at which sperm migrating the flagella migrate at a certain volume percentage (range 0% to 100%) by counting 200 sperm.
Decreased sperm motility may be a symptom of disorders associated with male accessory gland secretion and the sequential ejection of these glands.
Routine sperm analysis should contain at least 50% progressively motile class A and B sperm. Sperm viability should be checked if more than 50% of the sperm are fixed. Persistent reduced mobility is a good indicator of infertility and is actually the more important outcome when making decisions about treatment options for couples.
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The genetic information in a gamete is identical to one of the original separated sets of chromosomes in the parent.
1.True 2.False
The given statement " the genetic information in a gamete is identical to one of the original separated sets of chromosomes in the parent" is true because gametes contain only one of a chromosome pair that exists in the diplod parents cells.
Hence, the correct option is True.
What are chromosomes?A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins.
During the process of gamete formation or meiosis in parental sex cells, the pair of chromosomes in the parent cells divide to produce daughter cells or gametes containing only singer chromosomes,
Thus, the gametes contain only one set of chromosomes identical to the parent's chromosomes.
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Answer: it’s True<3
Explanation: WHY HASNT YALL BE ONLINE!!!
_______ complements the strand of DNA, while _____ the strand of mRNA.
Explanation:
nontemplate complement the strand of dna while template the strand of rna
What is the direction of the 4 typhoon?
4 typhoon means a wind threat that has the high speed of wind can attack 118-184 km/h.
What is a typhoon and what is the direction of the typhoon?Typhoon is defined as a tropical cyclone with a maximum wind of 34 knots or higher. A tropical cyclone with a maximum wind of fewer than 34 knots is called a tropical depression. The difference between the two types of tropical cyclones is just if the maximum wind is less than or above the threshold of 34 knots.
Tropical cyclones (Typhoon ) form between 5 and 30 degrees North latitude that move toward the west. Sometimes the winds in the middle and upper levels of the atmosphere change and move the cyclone toward the north and northwest direction.
So we can conclude that a typhoon is a tropical cyclone that includes a maximum wind of 34 knots or maybe higher.
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simple sugars, like glucose, can be combined to make more complex larger sugar molecules like fructose and complex carbohydrates
true or false
Answer: true
Explanation:
How is nominal scale type related to diversity?
Answer: A
Explanation: :3
What are the four factors that leads to habitat degradation?
The four factors that leads to habitat degradation are,
1. Farming, first the agriculture sector is the one that receives the greatest criticism.
2. Business Numerous habitats are destroyed by powerful firms and corporations.
3. Noxious species Another significant factor in the loss of native species is the introduction of invasive species into areas.
4. Growing Population and Needs Human population and requirements are both rising quickly.
As a result of the extensive use of land for industrial farming, runoff is another problem that adds to pollution and habitat deterioration. A lot of fertilisers, insecticides, and other items with toxic compounds are frequently needed for farming. These compounds were once used to safeguard and encourage the growth of crops.
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True or false all of the water that is on the earth will always be here because of the water cycle
Answer: The statement appears to be true.
People with antisocial personality disorder are often more difficult to treat than people with other types of personality disorders. Why do you think this is so?
Answer:
I think that the difficulty in dealing with a person suffering from antisocial personality disorder is due to their lack of remorse towards the bad things they can do, things that possibly exceed the ethics or judgment of the person who is going to treat them. In addition, their lack of discernment towards what is really right or wrong can cause serious confrontations or discord between the person who suffers from the disorder and others.
Explanation:
The antisocial personality disorder consists of the lack of understanding of good and evil, with which, the person can come to commit bad things without any remorse and even seeming something normal, which is why their dealings with a person who has an ethic Iron could be very complicated, unlike other disorders where the person may do bad things, but they are aware of the bad things they do and, therefore, they regret it and they could try a change in their behavior.
Notch is a receptor protein displayed on the surface of certain cells in developing fruit fly embryos. Notch’s ligand is a membrane-bound protein called Delta that is displayed on the surface of adjacent cells. When Notch is activated by its ligand, the intracellular tail of the Notch protein becomes separated from the rest of the protein. This allows the intracellular tail to move to the cell’s nucleus and alter the expression of specific genes.
Which of the following statements best explains Delta’s role in regulating cell communication through the Notch signaling pathway?
A. Delta transmits a chemical signal to all the cells of a developing embryo.
B. Delta allows the cells of a developing embryo to communicate without making direct contact.
C. Delta restricts cell communication to short distances within a developing embryo.
D. Delta determines which cells in a developing embryo express the gene that encodes the Notch protein.
If Delta is displayed on the surface of adjacent cells, and when Notch is activated by its ligand, the intracellular tail of the Notch protein becomes separated from the rest of the protein and allows the intracellular tail to move to the cell’s nucleus and alter the expression of specific genes, then C. Delta restricts cell communication to short distances within a developing embryo best explains Delta’s role in regulating cell communication through the Notch signaling pathway.
What is cell communication in a signaling pathway?The expression cell communication in a signaling pathway makes reference to the molecular cascade activated by the interaction of biomolecules synthesized by two or more cells
Therefore, with this data, we can see that cell communication in a signaling pathway depends on the biomolecules of the cells.
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What is the genotype of individual II 2?
When two alleles in a genotype are the same, the genotype is said to be homozygous; when the two alleles are different, the genotype is said to be heterozygous. Genotyping is the term for the process of identifying a genotype.
A person's genotype is made up of all the alleles they have for a certain gene. The sum of a person's attributes or observable characteristics is their phenotype. The phenotype of an organism is only impacted by its genotype, which is directly inherited from its parents. It is possible for a child to have genotype "ii" because parents with type B will have either BB or Bi. A father with type "O" can have a child with genotype "ii" because type "O" is determined by allele I.
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Help me please please please
Answer:
1.b
Explanation:
Answer the following questions.
1. Mitosis is categorized as a form of asexual reproduction.
2. Meiosis is categorized as a form of sexual reproduction.
3. Why are the offspring created by mitosis considered to be clones?
4. Are clones created during meiosis? (Explain your answer.)
5. What are gametes?
A gamete is a reproductive cell.
6. Human gametes should contain _____ chromosomes each. This number would be considered the ______________ (haploid/diploid) number for humans. The symbol for this is ______.
7. After fertilization, the fertilized egg is referred to as a _______________.
8. What type of cells have the ‘2n’ number of chromosomes?
9. What type of cells have the ‘n’ number of chromosomes? When do these cells have ‘2n’ chromosomes?
10. If an organism has an ‘n’ of 32, how many chromosomes are in its somatic cells? How many chromosomes are in its gametes?
Mitosis is a form of asexual reproduction in simple living organisms. The outcome of each cell cycle is two identical cells.
What do you mean by mitosis?Mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei. Cell division by mitosis gives rise to genetically identical cells in which the total number of chromosomes is maintained.
Mitosis is a process where a single cell divides into two identical daughter cells. The characteristics of Mitosis are: During mitosis one cell divides once to form two identical cells.
The purpose of mitosis is to make more diploid cells. It works by copying each chromosome, and then separating the copies to different sides of the cell.
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What would be one easy way to increase the amount of torque a wind turbine produces?
A. Decrease the height of the turbine
B. Decrease the length of the rotor blades
C. Increase the height of the turbine
D. Increase the length of the rotor blades
Please help
if you were traveling to a tropical country, why do you think its good to understand about protozoans?
Answer:
Protozoans can be parasitic. Malaria is the most significant of the protozoan parasites that infect humans. Malaria is found in tropical and sub-tropical regions of the world. In addition, tropical countries are often affected by poverty, poor sanitation, and inadequate medical facilities. These factors often increase the transmission of parasitic diseases.
what happens to excess fatty acid and glycerol in the body
The liver prepares for storage in the subcutaneous tissue and other storage depots when excess fatty acid and glycerol are in the body.
Lipogenesis is the metabolic process of converting and storing fatty acid and glycerol are converted and stored in depots. When the energy level decreases they are converted back into fats and this process is called lipolysis.
The liver is responsible for fat metabolism and the amalgam of lipoproteins. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids, and glycerol. This process takes place in the cytoplasm.
Triglycerides are a type of lipid found in the blood. When you consume food the unused fatty acid or calories are stored in the form of triglycerides stored in fat cells. Excess of triglycerides can lead to hypertriglyceridemia.
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What are the 3 classes of mollusks and how are they different?
The three main classes of mollusks are: Gastropods, Bivalves and Cephalopods. Gastropods have a single large foot, bivalves have two calcareous shells and Cephalopods are recognized by their unique method of locomotion.
Mollusks are the organisms of the phylum Mollusca. It is recognized by the presence of calcareous shells, visceral mass, muscular foot. The Mollusca is the second largest phylum of kingdom Animalia.
Cephalopods are the largest animals amongst all invertebrates, They are recognized for their method of locomotion where they release a stream of water through the body for their movement. Cephalopods have a well developed nervous system as well as closed circulatory system.
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Identify and disucss TWO diferent factors that would affect whetehr the island's fly population is in Hardy Weinberg equilbrium for thr trails above
Two factors that could affect whether the fly population on the island is in Hardy-Weinberg equilibrium are mutation and selection.
The way in which these two factors would affect, if the population of flies on the island is in Hardy-Weinberg equilibrium would be:
Mutation is a process by which new alleles are introduced into a population, which can alter the distribution of alleles in the population. If a new allele is introduced that provides a fitness advantage, then it could cause the allele frequencies in the population to move away from the Hardy-Weinberg equilibrium.Selection is the process by which certain alleles become more or less common in a population due to their relative fitness advantages or disadvantages. If a particular allele provides a fitness advantage, then the frequency of that allele will increase in the population, causing the population to move away from the Hardy-Weinberg equilibrium. On the other hand, if a particular allele provides a fitness disadvantage, then its frequency will decrease, again causing the population to move away from the Hardy-Weinberg equilibrium.Learn more about Hardy Weinberg equilibrium:
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1. Naomi has blue eyes (bb), freckles (Ff), dimples (Dd), and curly hair (SS). Naomi is heterozygous for.
eye color and hair texture
freckles and dimples
eye color and dimples
freckles and hair texture
TRUE/FALSE: Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Answer:
True
Explanation:
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
What are 2 examples of codominance?
Examples of animal codominance include spotted chickens with both black and white feather alleles and lone cows that express red and white fur alleles.
Codominance and incomplete dominance are two category of genetic inheritance. Codominance actually means that neither allele can block or camouflage the expression of the other allele. Co-dominance can also occur in less obvious traits such as blood type. Both the A and B alleles of blood type can be expressed simultaneously, resulting in blood type AB. In genetic terms, codominance refers to a mode of inheritance in which two versions of the same gene (alleles) of her are expressed separately to produce different traits in an individua
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What are 3 examples of inalienable or natural rights?
The enjoyment of life, liberty, and the pursuit of happiness, as well as the acquisition and ownership of property, are some of these natural rights.
Everyone has equal inherent and inalienable rights and is free by nature. If liberty, the pursuit of life and happiness are alienable rights, then tyrannical rule can legitimately occur.
Even if it were possible, before one could object to a government action as a breach of the right to liberty, one would need to go back on the history of interactions between the populace and the political establishment.
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Drag the labels to their appropriate locations to identify the type of point mutation shown. a) silent mutation b) nonsense mutation c) missense mutation
The type of point mutation shown: a) silent mutation
b) nonsense mutation
c) missense mutation
d) Frameshift mutation
Any change in the DNA sequence of a cell. Mutations can be caused by mistakes in cell division or by being exposed to DNA-damaging agents in the environment. Mutations can be harmful, beneficial, or inactive.
Hereditary mutations cause cystic fibrosis, hemophilia, and sickle cell disease. Other mutations can happen on their own during a person's life. These are known as sporadic, spontaneous, or new mutations. They only affect a small number of cells.
Genetic mutations are changes to your DNA sequence that occur during cell division, or when your cells multiply. Your body's DNA coding directs it on how to create and operate. Hereditary mutations can cause genetic disorders like cancer, or they might help people adapt to their surroundings over time.
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