The evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
What are homologous structures?Homologous structures are those structures that are similar and can be attributed to a common ancestor.
A common example of homologous structures in evolution are the wings of bats and the arms of primates.
Therefore, it can be said that evidence provided by the structure is that: the similar structure of the limbs indicates that the organisms share a common ancestor.
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If am elephant were chasing you, it's enormous mass would be very scary .but if you zigalzagged ,the elephant's mass would be to your advantage. why?
If you zigalzagged ,the elephant's mass would be to your advantage due to inertia.
How zigalzagged would be to your advantage?If you move zigalzagged ,the elephant's mass would be to your advantage because the elephant's mass is greater than yours so due to inertia, the elephant would have more difficulty switching directions than you.
So we can conclude that if you zigalzagged ,the elephant's mass would be to your advantage due to inertia.
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What kind of compounds are formed by carbon
Answer:
Carbides: Carbides are binary compounds formed by carbon and another element with a lower electronegativity. Examples include Al 4 C 3, CaC 2, SiC, TiC, WC.
Carbon Halides: Carbon halides consist of carbon bonded to a halogen. Examples include carbon tetrachloride (CCl 4) and carbon tetraiodide (CI 4 ).
Carboranes: Carboranes are molecular clusters that contain both carbon and boron atoms. An example is H 2 C 2 B 10 H 10.
Explanation:
Answer:
Carbon Forms Covalent Bonds
This is because carbon typically bonds with elements which have a similar electronegativity. Examples of covalent bonds formed by carbon include carbon-carbon, Examples of compounds containing these bonds include methane, water, and carbon dioxide.
Explanation:
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If a population is already well-adapted to its environment, will most mutations be helpful or harmful? Explain.
Most mutations will be helpful if a population is already well-adapted to its environment.
What is Mutation?This is defined as a change in the DNA sequence of organisms. These changes occur as a result of the ever changing environmental conditions.
When there is a high adaptability by the population, then it infers that the mutation is a helpful one.
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Which base in an anticodon will pair with the base adenine in a codon?.
Answer:
In an anticodon the base that will pair with the base adenine in a codon is uracil.
Explanation:
In the guinea pig, black coat (B) is dominant over white coat (b).
Answer:
what's the question
Explanation:
so I can give u a answer
Selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as __________.
The selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as se_xual selection.
What is se_xual selection?The expression 'se_xual selection' makes reference to the type of evolutionary constraint on the individual's ability to mate.
Se_xual selection is fundamental to increase the genetic variation and thus enhance adaptive chances.
Se_xual selection can be considered a special type of natural selection that acts at an individual level.
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A/an ____________________ is a structure in which male gametes develop.
An antheridium is a structure in which male gametes develop
Why might lymph nodes swell if a person has an infection?
Answer:
more blood cells come to that area to ward off infection
Explanation:
Which of these belongs to the four macromolecules of life.
lipids (fats & oil)
enzymes
fructose
oxygen
Answer:
lipids actually
Explanation:
because the four macromolecules of life are Macromolecules,
Carbohydrates, Proteins, and Lipid
11. If you wanted to obtain 100% roan calves, what would the parents' genotypes need to be?
If you wanted to obtain 100% roan calves, then it si required to cross parents who are homo-zygous (pure lines) for the genes associated with this trait.
What is a homo-zygous individual?A homo-zygous is an individual who has the same gene variants or alleles for a given gene locus.
Conversely, a heterozygous is an individual who has different gene variants or alleles for a given gene locus.
In breeding, pure lines (or purebred) are homo-zygous individuals that may be crossed to obtain the desired trait in the descendence.
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Please quick
Why is it important to design field studies that will not make wild animals associate humans with food?
Animal behaviorists have found that animals gain from developing bonds with trustworthy humans, but doing so calls for a lot of motivation and understanding about the animal's behavior.
What is animal behavior?The scientific study of non-human animal behavior is called ethology, and it often focuses on behavior in natural settings and sees behavior as an evolutionary adaptive quality.
Animal behavior is an animal's response to stimuli, and there are both acquired and intrinsic types of animal behavior.
Dogs who have been trained to obey commands are an example of animal behavior. In contrast, inherent behavior includes mating cues like bird crowing and peacock dancing before a storm.
Animals benefit from forming relationships with dependable humans, according to animal behaviorists, although doing so requires a lot of drive and knowledge of the animal's behavior.
Anyone lacking sufficient motivation or missing the necessary knowledge could suffer considerable harm if they attempted to interact with the animal.
Thus, it is important to design field studies that will not make wild animals associate humans with food.
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Domestic cats transfer their genetic information to their offspring by meiosis. If a kitten has 38 chromosomes, how many chromosomes does the kitten inherit from its mother?
Answer:
17
every organis contains half of its parents genetic makeup.
Eg human have 46 chromosomes, getting 23 from each parent.
In certain flowers, blue and yellow flowers are incompletely dominant to each
other. Show the cross between a pure blue flower and a pure yellow flower
The cross between a pure blue flower and a pure yellow flower is attached as an image. The genotypes of the parents are as follows:
Pure blue flower = BBPure yellow flower = YYWhat is incomplete dominance?Incomplete dominance is a type of non-mendelian inheritance in which the alleles of a gene are neither dominant nor recessive over one another, hence, an intermediate phenotype is produced.
According to this question, blue and yellow flowers are incompletely dominant to each other in certain flowers.
The genotype of pure blue flower = BBThe genotype of pure yellow flower = YYA cross between BB × YY will produce an intermediate phenotype different from both parents.
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Which level of organization do all of the mojave grasshoppers in a creosote bush microhabitat form?.
Answer:
Population
Explanation:
More than one of the same species in the same location
Which statement describes the solar feature labeled B?
Answer:
here is the pic so can someone answer the question I need help T-T!!!
What is the first thing that can cause a change in allele frequency?
1. Large sample size
2. Extremely large sample size
3. Small sample size
the food you eat supplies you with the ____ needed for you rbody to build new cells and r enew itself
A decrease in the activity of the antidiuretic hormone produced by the posterior lobe of the pituitary gland results in
A decrease in the activity of the antidiuretic hormone produced by the posterior lobe of the pituitary gland results in diabetes insipidus.
What is diabetes insipidus?The term diabetes insipidus makes reference to an imbalance of different fluids inside the body.
Diabetes insipidus leads to the unnormal production of urine, which is associated with several health problems.
In diabetes insipidus, the uncommon generation of urine is colorless, insipid, and/or odorless.
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PLEASE HELP MEEE!!!
(A simple answer would be great no links please and thank you)
An experiment is
testing how
different fertilizers
affect plant
growth. Which of
the following
would be the
CONTROL
GROUP in this
experiment?
A. the growth of the
plants
B. the fertilizers
C. multiple groups with
the same plant and
fertilizer
D. a plant without
fertilizers
Answer: B
Explanation:
A. the growth of the plants
Fertilizers provide essential nutrients to plants in form of soluble salt compounds, and directly affect plant growth. ... Excess fertilizer alters the soil by creating too high of a salt concentration, and this can hurt beneficial soil microorganisms.
Does natural selection operate more efficiently on dominant or recessive alleles
Answer:
Selection against dominant alleles is more efficient than selection against recessive alleles.
Explanation:
Natural selection operates more efficiently on dominant alleles as compared to recessive alleles.
What do you mean by Natural Selection?Natural selection may be defined as the process through which populations of living organisms adapt and change.
Dominant alleles are expressed in the phenotypes of an organism, while the effect of the recessive alleles is masked or sheltered in the heterozygous condition.
Therefore, Natural selection operates more efficiently on dominant alleles as compared to recessive alleles.
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How many times would Earth rotate on its axis during one revolution of the sun?
The Earth will perform 366.25 rotations per revolution about the Sun.
What is Revolution?This is defined as the motion around the Sun along its orbit which is common with planets such as the Earth.
The Earth rotates 366.25 times around the Sun and which is equivalent to a calendar year which is used for time keeping.
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Answer:
365 days (1 year)
Explanation:
Revolution takes 1 year (365 days) while a rotating takes 24 hours (1 day). Don't mix them up!!
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Kyle finds an invertebrate outside in the dirt. the invertebrate has a long, tube-like body that is divided into many different parts. he researches the organism and finds out that it has a nervous system, blood vessels, and a long digestive tube that runs down the length of its body. it can also absorb dissolved oxygen through its skin. the organism that kyle found is most likely a(n) _______. question 4 options: echinoderm arthropod segmented worm mollusk
Since, it has a nervous system, blood vessels, and a long digestive tube is most likely a segmented worm.
What is a segmented worm?
Segmented worms have long tube-like bodies that are divided into segments.
They are the simplest organism with a true nervous system and blood contained in vessels.
They have a long digestive tube that runs down the length of the worm's inner body.
They can take in dissolved oxygen from the water through their skin.
Thus, a segmented worm has a nervous system, blood vessels, and a long digestive tube.
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In Mendelian inheritance, why are only two phenotypes possible?
Answer:
Each characteristic Mendel investigated was controlled by one gene that had two possible alleles, one of which was completely dominant to the other. This resulted in just two possible phenotypes for each characteristic.
Explanation:
ur welcome !
how do prokoryotes benefit animals
Answer:
They produce or process nutrients in the digestive tracts of humans and other animals.
Explanation:
Cauliflower, broccoli, brussels sprouts, cabbage, and kohlrabi are all the same species of plant. What is responsible for the differences in these vegetables?.
Artificial selection is responsible for the differences in these vegetables.
Have you ever wondered how you hear sound? sound waves travel through your outer ear, where _________________ send the vibrations to the inner ear.
How long do seeds take to grow in the realm within?.
Answer:
Buy the appropriate plot for the seed in realm Depot. Place the plot and plant the seed. Wait for 70 hours or until the seeds to grow. Harvest the plant.
Explanation:
A beetle species that lives deep inside trees invades a forest where a population of woodpeckers lives. Only woodpeckers with longer beaks are able to reach these beetles and feed on them. The shorter-beaked woodpeckers are at a disadvantage over the longer-beaked ones.
Which type of pattern of natural selection of woodpeckers is most likely to occur in this scenario?
Answer:
Mountain Pine Beetle.
They only attack in Douglas Fir Trees.
What prior species of hominids did homo sapiens encounter in europe approximately 40,000 years ago?.
Answer:
Neanderthals
Explanation:
Homo sapiens encountered neanderthals in europe and had offspring.
The prior species of hominids that Homo sapiens encounter in Europe approximately 40,000 years ago is Neanderthal.
What is species?
Species is the term that is used to classify different organisms. Species is the second last classification, which means most similar organisms are present in this classification. The traits are mostly similar in these organisms.
While the form of the head and face was not significantly different from that of current humans, there were still quite a few distinctions. Most notably that of the modern human head, which is shorter and has a less prominent facial front. Neanderthal was a former human.
Therefore, the Neanderthals are the ancestors of Homo sapiens, who first encountered them in Europe some 40,000 years ago.
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Pls answer!!
a) Based on this information and the food chain below, what are the implications of
not taking immediate steps to reduce CO2 emissions in the atmosphere? (2 points)
algae → snails — crabs — salmon → man
b) Because killer whales are at the top of many food chains, it may seem as if they
are not at risk of starving if seals die off. Why is this not necessarily true? (2 points)
Answer:
a) Higher carbon dioxide levels means a rapid growth of Algae, especially toxic blue-green algae that can float to the surface of the water. This growing amount of Algae will expand across the ocean and clutter it. Harmful algal blooms can be harmful to aquatic life, as some produce toxins that can make animals sick, while others can die off in large quantities and deplete oxygen in the water when they decompose. Snails, specifically aqaurium snails, crabs, and salmon do feed on Algae, which could control it to a degree. However, as the ocean becomes more acidic, it could dissolve the shells of crabs and snails, which will cause them to cook in the sun, and therefore die out. As for salmon, studies showed that high CO2 concentrations disturb fish acid-balance, induce stress response, increase nephrocalcinosis incidence, energy metabolism, and feed conversion ratio, and reduces body condition factor, feed intake, and growth. Fish in this condition are very vunerable to dying despite food being all around them. Additionally, fish in those conditions are not suitable for consumption, which means less food for mankind.
b) This is not true. Although they eat sharks, whales, and dolphins, that is just occasional. Seals are their primary meal. As the killer whale is a consumer, it cannot provide food/energy for itself, therefore relying on organisms below it on the food chain. The killer whale predominately consumes seals, being it’s only large predator, killer whales are crucial to the stabilisation of seal population.
Explanation:
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