Answer:
The human appendix may be considered as a vestigial organ as it has been proved that the removal of the organ after infancy does not create any harm. Vestigial in that sense means that the vermiform appendix seemingly has no functions or is useless now but they might have had functions previously which are lost someway due to evolution.
Explanation:
Vestigial organs are organs, tissues or cells in a body which are not functional anymore the way they were in their ancestral form of the trait. It is therefore authentication of evolution and hence were helpful in explaining adaptation.
Cell division vocabulary .
Answer:
Chromosomes-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Chromatin-the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.
Chromatid-each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Centromere-the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
Centriole- a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
Explanation:
Guys how do I get a little fat? I eat all the time but I feel like I’m not growing
Answer:
you've just gotta have a balanced diet
Explanation:
when ppl tell you to eat more junk food they're wrong because yes you can gain weight by eating fatty foods but it's not good for you the best way to gain weight is to eat a balanced diet
most nectar in flowers is contained in the middle of the blossom at the base of the patels. why you think the location of the nectar in important for the plants reproduction
Plzzzz help Creating models to examine concepts is important in science. Some of these are experiments
and only one is a model. Which one is a model?
a
O A heated soda can is cooled rapidly to see what will happen to air pressure.
O An apple is sectioned into quarters to represent the ratio of water to land on Earth.
O Ice cubes are left to melt on different surfaces to find out how materials conduct heat.
O Students conduct a color blindness test with their family members.
Knowing that a model is considered a representation of something, the correct option is option B, in which the apple represents the Earth. An apple is sectioned into quarters to represent the ratio of water to land on Earth.
--------------------------------
To answer this question, you can think about a model as a representation of something.
A scientific model can represent an object, a system, a process, a phenomenon, etcetera.
Models are used to explain, predict, or describe natural events. They constitute a significant tool in modern science and are essential to scientific practice.
Knowing this, among the provided options, the one that is a model is option B.
The apple is representing the ratio of water to land on Earth. It is a representation of the earth.
All the other options are experiments performed to see what is going to be the result.
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In dogs, one pair of alleles determines coat color (dark and albino). Another pair of alleles determines hair length (short and long). Thus, each gamete will contain one of the coat-color alleles, C or c and one of the hair-length alleles, B or b. In repeated crosses of a specific dark, short-haired dog with an albino, long-haired dog, all the offspring were dark with short hair, as shown in cross I. However, in subsequent crosses of another dark, short-haired dog with a dark, long-haired dog, the ratios shown in cross II below were obtained. In cross II, the genotype of the dark, short-haired parent is which option choice.
Answer A: CcBb
Answer B: ccbb
Answer C: CCBB
Answer D: CCbb
Answer E: ccBB
Answer:
the answer is b
Explanation:
In cross II, the genotype of the dark, short-haired parent is which option choice. Answer A: CcBb
Genetic crossesIn genetic crosses, the allelic combinations that translate the phenotypes are called genotypes, and thus, the designations aa, Aa and AA represent the genotypes. In crosses of single-gene inheritance, in which there are dominance relationships, two different genotypes (Aa and AA) reproduce the same phenotypes. And when a cross occurs, both phenotypic and genotypic proportions can be observed.
With this information, we can conclude that the genotype in the second cross was heterogametic.
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6. All of the following are renewable resources except for:
A. fossil fuels
B. soil
C. water
D. forests
a - fossil fuels
step by step explanation:
fossil fuels are non-renewable and will run out
explain how lynn margulis hypothesis changed scientific ideas about cell development
Answer:
Margulis theorized that eukaryotic cells (cells with nuclei) evolved from a symbiosis of bacteria without nuclei that had previously lived independently. ... This serial endosymbiotic theory, or SET, gave a new view of evolution and helped explain the origin of cells with nuclei.21-Oct-2008
Works written: Origin of Eukaryotic Cells, Symbiosis in Cell Evolution, Microcosmos ...
Professions: biologist, scientists
Spouse: Carl Sagan
Explanation:
hope this helps Please mark Brainlist
In nature why do sediments settle from water? The water must blank or blank
Answer:
These benefits occur due to sediment deposition – when suspended particles settle down to the bottom of a body of water. This settling often occurs when water flow slows down or stops, and heavy particles can no longer be supported by the bed turbulence.
Answer:
because they are soft
Explanation:
and that why they swim
This is my teacher/daughter
thats nice :)
also hi hru
What is the difference between a producer and a consumer? (Select all that apply.)
Consumers convert sunlight energy into fuel and producers cannot.
Producers convert sunlight energy into fuel and consumers cannot.
Consumers can make their own food energy and producers cannot.
Producers can make their own food energy and consumers cannot.
Answer:
B & D
Explanation:
Producers make
Consumers eat/use producers and/or what they make
Hope its right :)
The difference between a producer and a consumer is producers convert sunlight energy into fuel and consumers cannot and producers can make their own food energy and consumers cannot. Thus, option B and D are correct.
Who is considered as producer?All green plants which prepares their own food is considered as the producers. Decomposers are usually defined as as those organisms which converts the complex organic matter into simpler ones, hence consuming the required amount needed and liberating the left over to the environment.
The cycle goes on and helps in maintaining a state of between the living and the decaying particles and the producers, consumers and the decomposers are interdependent on each other.Consumers convert sunlight energy into fuel and producers cannot.
So, it can be concluded that, after the death of an organism (consumer), some amount of energy is consumed by the decomposers and the remaining is mixed with the environment.
Therefore, The difference between a producer and a consumer is producers convert sunlight energy into fuel and consumers cannot and producers can make their own food energy and consumers cannot. Thus, option B and D are correct.
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Which organism is able to form organized patterns of behavior through the process of integration because it has ganglia? A grasshopper B mouse C Flatworm D shark
Answer:
Flatworms
Explanation:
Of the following, which component of life is the largest?
O Molecule
O Organelle
O Atom
O Cell
out of those options, the cell is the largest.
What are the biggest challenges to organisms in the tundra biome?
migrating to warm areas and finding food
surviving cold temperatures and finding trees to live in
surviving the cold temperatures and obtaining and keeping enough water
finding enough food and obtaining and keeping enough water
Answer:
Surviving cold temperatures and finding trees to live in
Explanation:
The major problems of tundra biome are oil, gas, mining industries
Answer:
surviving the cold temperatures and obtaining and keeping enough water
Explanation:
How would an error during mitosis cause a different effect on the body than an
error during meiosis
A mistake in the process of mitosis leads to the development of the daughter cells having chromosomes without segregation.
What is mitosis?A cell undergoes cell division by replicating its chromosomes, segregating chromosomes, and creating two identical nuclei during the mitotic phase. The cell organelles are divided equally between two daughter cells with the same set of genomes after mitosis.
Prophase, prometaphase, metaphase, anaphase, and telophase are the main four stages. Meiosis creates cells that are genetically distinct from the parent and have half as much DNA as mitosis, which divides a single "parent" cell into two genetically identical cells.
Therefore, mitosis is a process used in the somatic cells whereas miosis is in fertilization.
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Why does a plant cell have a fixed shape and an animal cell does not?
The cell membrane of a plant cell is surrounded by a cell wall.
O Plant cells have larger vacuoles than animal cells.
O The process of photosynthesis causes plant cells to have a rigid shape.
Answer:
it is because a plant cell is surrounded by a cell wall
Steroids are a type of what?
lipids
carbs
sugar
hormone
Answer:
lipids
Explanation:
thrips are insects that feed on rose
Answer:
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What percent of global freshwater is estimated to be used for crop irrigation?
90%
2.5%
60%
30%
Answer:
2.5%
Explanation:
because the global freshwater is estimated and observe percentage of water to used for crop irrigation and they compelled that 2.5% is exactly to used.
A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What
would her evidence have to show for her to be correct?
Strong genetic similarities in closely related organisms and weak genetic similarities in distantly related
organisms
Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related
organisms.
Strong physical similarities among closely related organisms and also among distantly related organisms.
o Weak physical similarities among closely related organisms and also among distantly related organisms.
An evidence that shows that evolution does not exist is: Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related.
WHAT IS EVOLUTION:Evolution is process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth. This means that organisms that evolve from the same lineage are expected to have similar genetic similarities.Therefore, an evidence that shows that evolution does not exist is: Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related.
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Answer:Its B
Explanation:
Double stranded RNA is cleaved by
Answer:
Dicer
RNA-dependent RNA polymerase amplifies siRNAs by binding to them and making more dsRNA, which is recognized and cleaved by Dicer into secondary siRNAs. The result is the silencing of genes by amplifying the RNAi effect. In certain cases RNAi also silences genes by the formation of heterochromatin.
Biochemists developed a compound that they hypothesize will disrupt the ability of the cells to organize centrioles and microtubules. This compound is applied to a group of onion root tip cells. What will serve as the best evidence that the biochemists' hypothesis about this compound is correct?
The best evidence that the biochemists' hypothesis about this compound is
correct will be lack of growth in the onions.
The centrioles and microtubules are important during the process of cell
division(mitosis) by organisms. They ensure that the cells divide properly
which helps cells to grow.
The compound being hypothesized to disrupting the activities of the
centrioles and microtubules means lack of growth will signify that it is
correct and the most appropriate choice.
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What structures are found in all cells? select two options
Explain how a reduction in phytoplankton can lead to a reduction in fish populations in the Indian Ocean.
Answer:
This will result in a further decline of the phytoplankton in the Indian Ocean, exaggerating the stress on the marine ecosystem
Explanation:
sorry if im wrong
Drag the tiles to the correct boxes to complete the pairs.
Match each organ to its function.
bone
heart
stomach
lung
pumps blood through the body
arrowRight
provides structure for the body
arrowRight
breaks down food into small particles
arrowRight
oxygenates blood
arrowRight
Bone —> provides structure for the body.
Heart —> pumps blood through the body.
Stomach —> breaks down food into small particles.
Lung —> oxygenates blood.
What is something you can never seem to finish?
Answer:
This!! HAHAHA!
Explanation:
Why is the metric system more scientific than the English system?
A. The English system is older than the metric system, and so it is less relevant.
B. The English system is only used in English-speaking countries.
C. The English system was based on human traits, while the metric system was founded on physical constants.
D. The English system must be converted to the metric system using conversion factors.
Answer:
Unlike the British Imperial System, the metric system, or SI (from the French Système International), is based on a natural constant.
Explanation:
The metric system is more scientific than the English system because the English system was based on human traits, while the metric system was founded on physical constants.
What do you mean by the Metric system?The metric system may be defined as the scientific way of measuring weights, and distance in kilograms and meters respectively with the help of a decimal system.
The metric system may also be known as the SI system. SI system is not based on the human traits rather then it depends on the natural constant. It is more precise, standard, and easy to understand.
Therefore, the correct option for this question is C.
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I’m sick of my parents I want a sister
Because the marshmallow burned for a short time in the marshmallow vs cheeto lab, it is safe to say
that the marshmallow acted like a...
o
A. carbohydrate
B. lipid
Which of the following is NOT considered a form of precipitation? *
Rain
Snow
Lightning
Hail
All of the above are considered precipitation
Answer:
Lightning is not considered a form of precipitation but rather a discharge of electricity.
6. Why do you think satellites are placed in the thermosphere?
Answer:
It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit). However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.
Explanation:
I hope it's help :)