Answer:
Long tail and narrow head.
Explanation:
A sperm cell is adapted to reduce friction as it swims by having long head, narrow tail and enzymes. These features of sperm provides ability to swim straight to the egg cell. Long tail helps the sperm cell to swim towards the egg cell, narrow head of sperm cell make the sperm cell for faster swimming towards the egg cell and enzymes present in the head of the sperm helps break through the egg cell membrane so we can say that the long tail and narrow head of sperm cells helps in faster swimming.
Natural selection causes changes in? A.genotypes. B.populations. C.individuals. D.phenotypes.
Answer:
populations
Explanation:
A) genotypes
Natural selection may happen because of different genotypes (for example, heterozygous individuals survive better). Natural selection does not change genotype.
Recall that genotype is the type of alleles one has.
B) populations
Natural selection is the survival of the fittest. For example, a drought. Or predators. Or limited food supply. Or overproduction. All will end up with the stronger, better-surviving types of a certain population. Natural selection does change populations.
C) individuals
Natural selection usually occurs when there are large amounts of a certain type of individual (for example, bunnies). They usually do not affect individuals.
D) phenotypes
Natural selection may happen because of different phenotypes (for example, green grasshoppers survive better than red ones). Natural selection does not change phenotype.
Recall that phenotype is the physical appearance one has.
Extra:
Phenotype vs. Genotype:
If A is dominant for brown hair and a is recessive for albino hair:
Genotype Aa has a phenotype of brown hair.
Genotype AA has the phenotype of brown hair.
Genotype aa has the phenotype of albino hair.
You can see how genotype and phenotype are like.
Natural selection causes changes in populations. The correct option is B.
What is natural selection?Natural selection is a biological mechanism that allows some organisms to survive and reproduce more successfully than others, resulting in the transfer of advantageous traits from one generation to the next.
Natural selection operates on the and phenotype genotype of the organism. It causes changes in the frequency of genes (genotype) in a population, which results in changes in the physical appearance (phenotype) of the population.
A population is a group of individuals of the same species living in the same geographical area at the same time. Natural selection affects populations, not individuals, as it occurs over several generations, and it results in changes in the allele frequencies in the population. Thus, natural selection causes changes in populations.
Therefore, the correct option is B.
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Kingdom Plantae includes all but which of the following organisms?
Answer:
Kingdom Plantae includes multicellular, autotrophic organisms. Except for a few species that are parasites, plants use photosynthesis to meet their energy demands. Kingdom Fungi includes multicellular and unicellular, heterotrophic fungi.
Explanation:
investigation of ecological relationships and distribution of species and isolated communities is known as?
Answer:
island biogeography
Explanation:
I hope this helps.
Investigation of ecological relationships and distribution of species and isolated communities is known as "island biogeography".
What is island biogeography?A subfield of biogeography called island or insular biogeography studies the variables that influence the species diversity and richness of isolated natural groups. The theory was initially developed to explicate the species-area relationship trend found in oceanic islands.
What is ecological relationships?Ecological balance being described as "a condition of dynamic equilibrium within such a community of animals in which genetic, species, including ecosystem diversity, remain largely stable, subject to progressive changes during natural succession" by a number of online dictionaries. "A consistent equilibrium in the populations of each species"
Therefore, investigation of ecological relationships and distribution of species and isolated communities is known as "island biogeography".
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A group of marine scientists introduced a species of fish into an artificial habitat and wanted to determine if it will grow well in the new environment. They recorded the population over several years and their data is plotted below. Analyze the data and formulate a conclusion. Does this species of fish do well in this habitat? Predict what will happen to the population over the next five years.
Answer: The graph appears to show an exponential growth among the school of fish. This is good for their species, because the artificial habitat suits their needs. The next five years would probably continue to grow this way if the environment doesn't change too rapidly.
What is the volume of 2.7 moles of N2 at STP?
Answer:
60.48L
Explanation:
By definition, at STP (Standard Temperature and Pressure), any gas takes up a volume of 22.4L.
Consequently, because the ideal gas law (PV=nRT) states that the number of moles is directly proportional to the volume of the gas, 2.7M of N2 takes up a volume of:
2.7*22.4L
=60.48L
Which devices can transform the information in vibrating matter into another form of information?
car radio
guitar
jackhammer
microphone
seismograph
Answer: hewo, there! your answer is Below
seismograph and Car radio Would be my Answer
Explanation:
an instrument that measures and records details of earthquakes, such as force and duration.
Hope this helps you!!
Have a great day!!
Autotroph or Heterotroph? Which Kingdom?
PLS HELP ME WITH THIS ADAP!!
The decay of atoms is a source of internal energy for the Earth because
A. light
В.force
C. heat
D. sound
PLSSSSSSS HELPPPPPPP
Process of change by which descendants come to differ from their ancestors
A. Evolution
B. Natural Selection
C. Phenotype
D. Variation
What enzyme synthesizes the new DNA strand by adding
bases?
Answer:
DNA polymeraseExplanation:
What would happen to a population if all females reproduce through parthenogenesis alone?
Answer:
All the offspring from parthenogenesis are female. So if the female stick insects carry on reproducing alone, the males could be wiped out. ... This may help explain why parthenogenesis remains rare, even in species that are capable of it. In such species, "males typically force females to mate".
Hope this helps
Which of the 3 muscle types is the weakest?
Vascular Smooth Muscle Contraction - FitnessGenes®
Group of answer choices
Cardiac
Skeletal
Smooth
Answer:
i believe the smooth i could be wrong tho:)
Explanation:
Answer:
Smooth muscle
Explanation:
trust me :)
Los jugos gástricos presentes en el estómago tienen un pH de aproximadamente1.87 ¿Cuál es la concentración de iones H+ presentes en los jugos gástricos?
Answer:
1,35 * 10 ^ -2 M
Explanation:
Recuerde que pH = -log [H ^ +]
Sea la concentración de iones de hidrógeno [H ^ +]
Si es así, entonces;
-pH = log [H ^ +]
Por lo tanto;
[H ^ +] = Antilog (-pH)
[H ^ +] = Antilog (-1,87)
[H ^ +] = 1,35 * 10 ^ -2 M
I need the answer asap please...
explain the sugar translocation in the plant starting with the leaf cell
(source cell) to the root cell (sink cell).
Answer: I think this is it.. Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The photosynthates from the source are usually translocated to the nearest sink through the phloem sieve tube elements.
Explanation:
Where are you most likely to find plant roots?
A) C Horizon
B) B Horizon
C) A Horizon
D) O Horizon
Answer:
A Horizon
Explanation:
So C :)
How is energy and forces related
A classmate tells you that the good thing about renewable resources like trees is that you can use them and use them and they will never run out. What is your classmate misunderstanding about renewable resources?
A renewable resource has been different from the nonrenewable one by the fact that the renewable resource is replenished faster than it is used.
What is a Renewable resource?A renewable resource could be defined as a type of resource that significantly continues to exist in nature despite being consumed or can replenish itself over a period of time even as they are utilized by the organisms.
A classmate tells you that the good thing about renewable resources like trees is that you can use them and use them and they will never run out. Renewable resources may include wind power, solar energy, geothermal energy, biomass, etc. These resources are available in nature in unlimited amounts as compared to non-renewable resources.
Therefore, a renewable resource is different from a nonrenewable one by the fact that a renewable resource is replenished faster than it is used.
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PLEASE HELP ASAP In the past, California has had many droughts. Which part of the water cycle is not active when a drought is occurring?
precipitation
condensation
transpiration
evaporation
?
precipitation ( rain ) is not occurring
The reason Senators are in office for 6 years is............
1) To separate Senators from the whims of the
general public.
2) to save money in elections
3) Because Senators are
required to be older
than representatives
Answer:
Hello There
I think #1
Explanation:
To guarantee senators' independence from short-term political pressures, the framers designed a six-year Senate term, three times as long as that of popularly elected members of the House of Representatives. Madison reasoned that longer terms would provide stability.
The skeletal and muscular systems are similar because
The skeletal and muscular systems are different because-
Answer:
The bones of skeletal system serve to protect the body's organs and support the weight of the of the body ,giving the body it's shape
Explanation:
The muscles of the muscular system attach to these bones, pulling on them to allow for movement of the body
what contains the genetic material within a cell
Answer:
The nucleus of living cells contains the genetic material that determines the entire structure and function of that cell.
Explanation:
What is the thin layer surrounding the cell?
Answer:
About 183,000,000 results (0.75 seconds)
Image result for What is the thin layer surrounding the cell?
Cell membrane
Explanation:
About 183,000,000 results (0.75 seconds)
Image result for What is the thin layer surrounding the cell?
Cell membrane
To model ocean water in different places on Earth, a student pours equal amounts of water in two containers. He adds the same amount of salt to each container and stirs until the salt is completely dissolved. He places Container 1 in a cool place in the house and Container 2 outside in the sunlight. After two hours, he tests the salinity of water in each container. What should the student MOST LIKELY conclude, and why?
Answer:
The correct answer would be - container 2 will have less salinity than container 1.
Explanation:
The given experiment can give an idea about how the temperature of surroundings can affect the salinity, volume, and density of the water that has the same amount of water and salt dissolved in it. The independent variable or the only variable that is different is their place that has a difference in the temperature. Container 1 is placed in a cool place while container 2 is placed in sunlight.
We know that the warmer the water it takes more space so, therefore, less density. Density and salinity both have a positive relationship so an increase in density increases the salinity and vice versa. Thus, here the salinity of container 2 would be low in comparison to container 1
An increase in sea surface temperature leads to a/an _____________ in water vapor, which leads to a/an _____________ in rainfall.
Answer:
increase in watervapor hence an increase in rainfall
Please help, any unnecessary answers will be reported. Thanks :)
Answer:
I think the light blue one
Explanation:
I’m not 100% sure but it makes sense
PLEASE HELP :( ILL GIVE U BRAINLIEST One person who is heterozygous for both attached earlobes and Widow’s peak mates with someone who has no widow’s peak and detached earlobes. Predict the Genotypes of the offspring and report the ratio of dominant/recessive phenotypes.
Answer:
AaWw,Aaww, aaWw, aaww
Explanation:
cuz
Most people develop wisdom teeth by early adulthood. Wisdom teeth can cause pain or crowd out their other teeth, so many people have these teeth removed. Wisdom teeth in modern humans do not perform a crucial life function.
Which statement best describes the importance of wisdom teeth to human evolution?
A. They are vestigial structures that once performed an important function for human ancestors.
B.They are evidence that humans have never evolved.
C. They are vestigial structures that never performed a necessary function for human
ancestors.
D.They are evidence that humans cannot evolve.
Answer:
A
Explanation:
There's a reason they grew there in the first place. The Caveman mouth was much larger than our modern mouths.
The statement that best describes the importance of wisdom teeth to human evolution is that they are vestigial structures that performs function for human ancestors.
What do you mean by Evolution?Evolution may be defined as the change in the characteristics of a species over several generations and relies on the process of natural selection.
Wisdom teeth are evolved in humans because early humans needed to chew coarse, hearty foods, they required a broader jaw. Wisdom teeth grew in to give them more chewing power for this purpose.
Therefore, the statement that best describes the importance of wisdom teeth to human evolution is that they are vestigial structures that performs function for human ancestors.
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Why is sexual reproduction associated with meiosis? meiosis reproduces identical DNA meiosis is the complete process of sexual reproduction meiosis helps to generate variability meiosis produces gametes
Answer:
meiosis produced gametes
Explanation:
During sexual reproduction, meiosis generates genetic variation in offspring because the process randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism.
Hope it right
What taxons make up an organism's scientific name (binomial name)?
A. Domain kingdom
B. Order family
C. Genus species
Answer:
C) Genus Species
Explanation:
I hope this helped ;)
Answer:
☥ [tex] \boxed{ \boxed{ \pink{ \large{ \tt{Genus \: Species}}}}}[/tex]
☄ [tex] \underline{ \underline{ \red{ \underline{ \large{ \tt{E \: X \: P \: L\: A \: N \: A \: T \: I \: O \: N}}}}}} : [/tex]
⟷ Carolus Linnaeus [ Father of taxonomy ] named plants and animals by using two Latin words. The first word refers to the genus [ generic name ] and the second to the species [ specific name ].
Genus : It is a group of closely related two or more species. The genus canis constitutes the closely related species like cat , dog , jackal and wolf.Species : It is a group of living beings which can interbreed and reproduce among themselves and keep their population alive.For example :
Scientific name of pea : Pisum sativum [ Here , the first word ' Pisum' refers to genus & the second word ' sativum ' to the species.♕ Hope I helped! ツ
♪ Have a wonderful day / night ! ♡
✎ [tex] \underbrace{ \overbrace{ \mathfrak{Carry \: On \: Learning}}}[/tex] ☂
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