Answer:
4 daughter cells produced when parent cell divides
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Answer:
I need 1 Brainliest before I can become Virtuoso
Explanation:
Answer:................. I just needed the points so I can get help on my math work........
Explanation:
Michael takes a personal inventory of the food he eats. Which foods on his inventory could be classified as nutritious? Check all that apply.
a bowl of fruit
steamed vegetables
a bag of potato chips
a candy bar
whole wheat toast
fried onion rings
a grilled chicken breast
Answer:
a bowl of fruit
steamed vegetables
whole wheat toast
a grilled chicken breast
Explanation:
Just answered the question on Edge and got it correct.
5) Taxonomy is defined as the science of
a. classifying plants according to their uses in agricultural experiments.
b. studying fossils
c. grouping organisms according to their characteristics and evolutionary history.
d. studying reproductive mechanisms in different species
Answer:
c - grouping organisms according to their characteristics
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which reason best explains why carbon is able to form macromolecules?
A. carbon is a very large element
B. carbon can bond with many elements
C. carbon is found in all living things
D. carbon is found in energy storing molecules.
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Which phase of the cell cycle is helicase most likely active? s M G1 G1
Answer:
G1 Phase
Explanation:
How do native plants respond after a degraded marsh has been restored to a healthy marsh?
Answer: slate
Explanation:
What is the answer please help no links I will report
Answer:
Limpets
Explanation:
Since the arrows represent flow of energy, and there is no path of energy from fish to limpets, limpets won't be affected at all.
factors affecting environment and development
Answer:
Environmental factors affecting plant growth and development include light, temperature, water, humidity, and nutrition. At the time of nurturing a tree, it is important to know how these factors could affect the growth and development of a plant. Knowledge about environmental factors helps the owner promotes proper growth.
Explain what is “bottleneck” and why genetic drift is more powerful in small populations.
Answer:
because more is being forced through
Explanation:
Answer:
A bottleneck in genetics is an event that kills off or isolates a large portion of the population.
Explanation:
The more individuals in a population, the greater the genetic diversity. A genetic bottleneck happens when the number of individuals in a population gets greatly reduced. This happens as a result of random chance. For example, a storm might come through and knock down a bunch of trees. Birds that live in the trees may get harmed and those that survive now have to find a new home, so they migrate to other areas leaving behind a small population. This is important because the fewer individuals there are, the less genetic diversity and therefore, the less ability of the population to adapt. If you have lots of different genes available and a new disease arises in the population, it's more likely that some individuals will survive. If you only have a few genes available, it is less likely any individuals will survive. This can lead to really quick adaptation and evolution of a species.
what is applied microbiology
Definition. Applied microbiology is a scientific discipline that deals with the application of microorganisms and the knowledge about them. Applications include biotechnology, agriculture, medicine, food microbiology and bioremediation.
How many chromosomes are made by using a cell "c"
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
describe the pathway of water molecules from the soil through a plant and into the atmosphere ?
sience plants absorb carbodieoxide the water molecules that is absorbed by the plant bond with carbondieoxide to form oxygen and release ìt into the atmosphere
A parents traits are inherited by offspring in the form of dna carried on
Answer:
Is this a true or false question? If so, this statement is true.
Explanation:
The offspring of the round-seed allele and the wrinkled-seed allele will have the ___________ phenotype
Answer:
4738hrjeifgt47ruj3
Explanation:
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Which of the following is most likely the reason why there are more long beaked woodpeckers than short-beaked woodpeckers in an environment?
The long-beaked woodpeckers are more attractive to predators.
The long-beaked woodpeckers have more flight stability.
The long-beaked woodpeckers can reach more insects in tree bark.
The long-beaked woodpeckers reproduce in smaller numbers.
Answer:the answer is c
Explanation:as having a longer beak allows the woodpecker to reach more bugs within the tree meaning they can survive and also provide for the offspring with the more insects it can reach
Why dos a single X chromosome that carriers the allele for red-green color blindness cause males to be color blind but doesn’t cause females to be color blind?
Answer:
Because females have two X chromosomes and the red-green color blindness allele has to be in both chromosomes to cause the woman to be color blinded. In the case of males, they only have one X chromosome, so if the allele for red-green color blindness is in the chromosome, the male will be color blinded since there is no other X chromosome with the normal allele as in females.
Explanation:
What determines if a person's sex is the genes X and Y. A sperm carries one of these two genes. When it meets the egg, this one will give the other chromosome, which is always X. So, if the sperm carries the X chromosome, the result, when the egg's fertilized, will be XX, which will give the information to develop a female human. If the sperm carries the Y chromosome, the result will be XY, which is a male.
As females are XX, if the red-green color blindness gene is in one of them, the other chromosome, which does not have this allele, will prevent the woman from being color blinded. We can say that women have a backup copy that prevents color blindness.
In the case of males, as they are XY, there is no extra copy that can prevent them from being red-green color blinded, so when a male has an X chromosome with this allele, they will be color blinded. In the case of women, they will only be carriers of the gene and will be color blinded if the two X chromosomes have the red-green color blindness allele.
what elements cycle between living and non living organisms?
Explanation:
The ways in which an element—or compound such as water—moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
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Elements that cycles between living and nonliving things are as follows: water, carbon, nitrogen, oxygen, phosphorus, and sulfur.
BIOGEOCHEMICAL CYCLES:
Elemental substances are examples of matter, which are transferred from one form to another in the ecosystem. The movement of these elements between living organisms and their environment is termed biogeochemical cycle.Elements that are involved in the biogeochemical cycle are as follows: water, carbon, nitrogen, oxygen, phosphorus, and sulfur. This means that these six elements move between living and nonliving sources. Water makes up the most part of the body of living organismsCarbon is a major component of the organic matter of living organismsNitrogen is a key component of nucleic acids and also found in the soil as nitratesPhosphorus is the key component of the energy molecule- ATP in every living organismSulfur is a component of some amino acids, and also released into the atmosphere during burning.Learn more: https://brainly.com/question/1204069
The 'good' bacteria living in a
digestive tract to remove other
forms of bacteria is an example of...
A. a parasite.
B. mutualism.
C. commensalism.
Answer:
It's B
Explanation:
Mutualism: An interaction between individuals of different species that results in positive (beneficial) effects on per capita reproduction and/or survival of the interacting populations.
Digestive bacteria and humans. Inside our bodies is what we call good bacteria(mutualism), which aids in digesting the food we take.
Cichlids, a type of fish, were introduced to a lake around 200 years ago. Over the years, the fish have developed into two distinct groups. One group stays in the main lake and the other group resides in the streams that flow into it. Both groups of cichlids breed in the same streams at the same time of year. However, the groups are splitting into two genetically and physically different types of fishes. How would you classify this type of speciation
Answer:
sympatric speciation
Explanation:
Different sympatric species have the same closest ancestor and live in the same area but inhabiting different niches.
The steps for sympatric speciation are:
An ancestral species inhabit a geographic area.With time, different populations of the same species occupy different niches or microhabitats in this general area. As the microhabitats are different, they have different environmental pressures that are acting on each population.These pressures lead to the origin of differences between groups, which need to adapt to each environmentEach population suffers genetic changes due to environmental conditions. These changes are inheritable.With time, these differences drive to the final complete divergence of populations, becoming different species and reproductively isolated.In sympatric speciation, the interruption of genetic flow must be fast, and there must be differences in niches so no species can compete and displace the other species. Speciation occurs in the same distribution area of the original species. The new species originate in a place with no physical barriers but different environmental pressures.
In the exposed example,
The introduced Cichlid fishes 200 years ago → Original species and the common ancestor between the new derivated speciesThe lake → general geographic areaThe main lake and the streams → Microhabitats or niches with different pressures eachThe groups are splitting into two genetically and physically different types of fishes. They do not mate. There is no genetic flow between groups. → Speciation process.The effect of cholesterol on membrane fluidity at physiological temperatures is to Choose one: A. prevent lateral movement of phospholipids and thereby decrease membrane fluidity in that region. B. maintain membrane fluidity due to exclusion of saturated glycerophospholipids. C. rigidify membranes by forming a complex that bridges the inner and outer leaflets. D. maintain membrane fluidity through its disruption of fatty acid packing.
Answer:
The correct answer is D. maintain membrane fluidity through its disruption of fatty acid packing.
Explanation:
Cholesterol is a steroid lipid and is a constituent of biological membranes. It regulates the fluidity of the membrane (so, option C is not correct). Since cell membranes are composed of another type of lipids, the phospholipids, which form a bilayer, cholesterol distributes between the phospholipid tails and avoids these molecules pack each other forming rigid clusters. Thus, the option which better explains the effect is D. maintain membrane fluidity through its disruption of fatty acid packing.
Evolution acts at the level of the
Answer:
evolution acts on phenotypes on the individual level but evolution is at the population level
Explanation:
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name the consumers:
scavengers, omnivores, herbivores, carnivores
Answer:
Jaguars and frog are carnivorous, lizard is omnivorous, whereas sloth, monkey and butterfly
Explanation:
Jaguars, frog, lizards, are carnivorous which feeds on meat of other organism whereas sloth, monkey and butterfly are herbivorous which feeds on plants. Jaguar feeds on Capybaras, deer, tortoises, fish, birds and monkeys etc, frog feeds on insects and lizard also eats insects as well as plants so it is omnivorous while on the other hand, sloth lives on the trees so feed on plants, butterfly feeds on flower's nectar and monkey feeds on the fruits present on the trees.
A forest fire destroys an area. Asmall population of trees and a large population of birds are both affected.
Which type of limiting factor causes this?
A. density dependent
B. Hensity independent
C.opulation dependent
D. opulation independent
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Describe the similarities and differences between plant and animal cells
Answer:
Plant cells have a cell wall and a cell membrane.
In plants, the cell wall surrounds the cell membrane.
Animal cells have a cell membrane but no cell wall.
Plant cells have cytoplasm.
Both have a nucleus.
A community ecologist would most likely study A. population growth of a single species. B. interactions among individuals of different species living in a small area. C. the cycling of matter through biotic and abiotic components of a geographical area. D. interactions among individuals of the same species living in a small area. E. energy flow through an ecosystem.
Answer:
The correct answer is B. interactions among individuals of different species living in a small area.
Explanation:
A community ecologist studies the set of populations of organisms of different species that inhabit and interact with each other in the same place for a period of time. The ecological community has to be studied as a unit or set and not independently each species of living beings that forms and interacts, that is, their distribution, organization, quantity, demography and reciprocity between the different populations that cohabit are included. Likewise, the main perspective of a community ecologist is found in the interrelationships between populations depending on the genotypic and phenotypic characteristics determined.
It is not enough to be in the presence of a pathogen like a bacteria or virus, there also needs to be an environment in which the pathogen can grow.
a. True
b. False
A rock contains a radioactive isotope that decays to half of its original
amount in 5 million years. When this rock formed, it was made up of 100%
of the radioactive isotope, and 0% of the new element that it decays
If you find this rock and analyze it, and find that it contains only 50% of the
radioactive isotope and 50% of the new element, how old must this rock
be? *
1) 2.5 millon years
2) 10 million years
3) 5 million years
4) 15 million years
Answer:
3) 5 million years
Explanation:
The rock is 5 million years old because the rock contains only 50% of the radioactive isotope. We know that this rock decays to become half in 5 million years. Initially, the rock has 100% of radioactive isotope and 0% of the new element that forms with the decaying of the rock. But 50% of the radioactive isotope decays and 50% of the new element is formed so we can say that it reaches to its half age which is 5 million years.
In the experiment, "Do white cats eat more than black cats?" the independent variable would be:
the color of the cat.
how much each cat weighs.
how much food each cat eats.
the temperature of the food.
In the given experiment, the independent variable would be the color of the cat. Thus, the correct option for this question is A.
What is an Independent variable?An independent variable may be defined as a type of variable that significantly and effectively stands alone and isn't changed by the other variables you are trying to measure. The independent variable is the cause. Its value is independent of other variables in your study.
According to the context of this question, the color of the cat would not depend on how much food a particular type of cat eats. This will depend on the nature and diet of the cat along with its physiology and pattern. So, the color of the cat would be thought to be the independent variable in the experiment because it does not make any sense in the eating cat.
Therefore, in the given experiment, the independent variable would be the color of the cat. Thus, the correct option for this question is A.
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Genetic engineering techniques can be used when analyzing and manipulating DNA and RNA. Scientists used gel electrophoresis to study transcription of gene L and discovered that mRNA strands of three different lengths are consistently produced. What explanations best accounts for this experimental result?
Answer:
the precursor messenger RNA (pre-mRNA) of the L gene underwent alternative splicing, thereby producing three different mRNAs that have different lengths
Explanation:
In eukaryotic organisms, transcription produces a precursor mRNA (pre-mRNA), which is a non-processed RNA sequence that contains both non-coding regions (i.e., introns) and coding regions (i.e., exons). Subsequently, this pre-mRNA is converted into a mature messenger RNA (mRNA) by a process known as 'alternative splicing', where introns are removed and exons and exons spliced together to form a contiguous coding sequence. During alternative splicing, differential combinations of exons can be produced from the same gene, producing different mRNAs with different lengths.
The experimental results with the gel electrophoresis of the transcription of mRNA are due to the alternative splicing.
What is alternative splicing?The genes are the codes that are enabled the formation of the DNA and RNA by expression. The transcription is the process of formation of mRNA from DNA template.
The mature mRNA is formed by the alternative splicing of the introns and the joining of exons for the functionalization. The process of alternative splicing results in the formation of the mRNA of multiple length.
The gel electrophoresis bands resulted have multiple length of mRNA. The results are the explanation for role of gene L in alternative splicing of mRNA.
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