mitotic spindle fibers are composed of what cellular components?
Answer:
They are composed of microtubules
Explanation:
The mitotic spindle is a structure composed of microtubules which segregates chromosomes into the daughter cells during mitosis. A microtubule is a rope-like component of the cytoskeleton. The centrosome is an organelle that serves as a microtubule organizing center during cell division.
_____ was the first taxonomist to group animals by blood color and plants by size and shape.
Answer:
Linneaus was the first taxonomist to group animals by blood color and plants by size and shape.
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? A. size of the cells of the organism B. what the organism eats C. how many types of cells are in the organism D. how fast the organism grows
Answer:
how many types if cell are in the organism
How do meiosis I and II contribute to genetic variation?
Which of the following is the central issue underlying a problem that needs to be addressed
Answer:
you didnt list the options
Explanation:
an individual with a antigens on their rbcs but no b antigens has which abo blood type?
Answer:
BLOOD TYPE O
Explanation:
The ABO Blood Group
People can also have both A and B antigens on their erythrocytes, in which case they are blood type AB. People with neither A nor B antigens are designated blood type O.
Most metabolic and regulatory functions in a neuron happen where?
Most metabolic and regulatory functions in a neuron happen in the cell body or soma.
Where do most metabolic and regulatory functions occur in a neuron?In a neuron, the cell body or soma is where the majority of metabolic and regulatory functions take place. The cell body contains the nucleus, which houses the genetic material necessary for protein synthesis and other cellular processes.
It also contains various organelles such as mitochondria, responsible for energy production and metabolism. Additionally, the cell body is involved in regulating the neuron's overall function including maintaining its structural integrity and coordinating signals received from dendrites and transmitted through the axon.
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why are the larval stages of silk moth and honey bees voracious ? please fast answer me
Answer:
Since that stage is the stage that most of their growth occurs and nutrition is important for their growth. Thus they eat continuously to sustain the growth pattern.
how long does it take for a body to become skeletal remains?
Answer:
usually it takes like 3 weeks to several years but it depends on many factors like temperature, humidity, presence of decomposers etc etc etc
Help me I need this done by the end of the class if you are a bot you will get your answer kicked so stop
Answer:
1. In the natural carbon cycle, there are two main processes which occur: photosynthesis and metabolism. During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product.
2. When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
3. it Disrupts the nitrogen cycle by contaminating the groundwater and making it more difficult for the plants to absorb the nitrogen and causes the phosphorus cycle to accelerate, resulting in an excess of phosphorus in water and soil.
4. The phosphorous cycle is slower than carbon cycle and nitrogen cycle because phosphorous is found mainly in very small dust particles. It moves very slowly from the deposits on land and in sediments and then it is transferred to the organism and from organism it is moved more slowly to the soil.
what is the role of the enzyme aromatase in sexual differentiation in reptiles?
Answer:
Aromatase helps to convert sex steroids, a group of hormones that influence sex development and reproduction, from male sex hormones (androgens) to female sex hormones (estrogens)
Explanation:
hope it helps you
Lillian parents are farmers. There are two types of fertilizers on the market. Both brands claim to grow carrots fastest. Plan and design an experiment to help Lillian's parents. Identify the independent, dependent and a control variable
The experiment to help Lillian's parents will consist of planting various carrots using both kinds of fertilizers, and maintaining a constant carrot type, amount of light, and amount of water throughout each plant.
In order to perform an accurate experiment, we need to identify three kinds of variables:
Independent variableDependent variableControl variableIn an experiment, the Independent variable is one whose value does not depend on the others. What this means is that this variable will not react to changes that occur in others. In this experiment, the independent variable is the fertilizer, given that it is not affected by the species of carrot, type of soil, or any other variable present.
The dependent variable in an experiment is just the opposite, it is, as the name implies, a variable whose value depends on the other variables present. In an experiment, this variable represents the data that we seek to measure. For this experiment, the dependent variable is the growth rate of the carrots because it is affected by the amount of water, light, and type of fertilizer we use, as well as being what we wish to measure.
Finally, the last variable we must identify is that of the control variable, also known as the constant or standardized variable. This variable is of vital importance for the accuracy of any experiment. This variable corresponds to those factors which we maintain constant through each trial in the experiment, for the example above, it is the amount of water and light, as well as the type of carrot, Lillian's parents will use.
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what is biology term for something covered with ribosomes and modifies protiens
Answer:
The endoplasmic reticulum can either be smooth or rough, and, its function is to produce proteins in order for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
Explanation:
What is the difference in the structure of the cell walls of gram-positive and grarn-negative
bacteria?
Answer:
The major difference between Gram-positive and Gram-negative peptidoglycan involves the thickness of the layers surrounding the plasma membrane. Whereas Gram-negative peptidoglycan is only a few nanometers thick, representing one to a few layers, Gram-positive peptidoglycan is 30–100 nm thick and contains many layers.
Explanation:
Metamorphic rocks are common when two continental plates collide because There is a lot of stress when enormous slabs of crust push together Sediment buries rocks to increase pressure O Magma bodies are common because there is a lot of melting O All of these
Answer: Metamorphic rock, estimated to be as old as 3.8 billion years, located near Isua at Qorqut Sound, Greenland.In the rock cycle, there are three different types of rocks: sedimentary, igneous, and metamorphic. Sedimentary and igneous rocks began as something other than rock. Sedimentary rocks were originally sediments, which were compacted under high pressure. Igneous rocks formed when liquid magma or lava—magma that has emerged onto the surface of the Earth—cooled and hardened. A metamorphic rock, on the other hand, began as a rock—either a sedimentary, igneous, or even a different sort of metamorphic rock. Then, due to various conditions within the Earth, the existing rock was changed into a new kind of metamorphic rock.
The conditions required to form a metamorphic rock are very specific. The existing rock must be exposed to high heat, high pressure, or to a hot, mineral-rich fluid. Usually, all three of these circumstances are met. These conditions are most often found either deep in Earth’s crust or at plate boundaries where tectonic plates collide. In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt. If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock.
Explanation:
we used a formal method of study to figure out which kind of grocery bag had the least effect on the environment. what is the student describing
A. using the scientific method
B. making a conclusion
C. using scientific tools
D. making random discoveries
Answer:
a
Explanation:
Which type of fossil can help is understand an organisms activity during its time?
Give example of yeast helping in making something
Answer:
Yeast uses
Explanation:
Yeast helps in making alcohol.
Answer:
makeing bread, prebiotic, biofuel
why does sound travel fast in increased pressure?
why do you organisms need to take food?
what must come together in order for atp to be made
All living things are made of cells, but not all cells are the same. While a specific cellglossary term (opens in a new window)’s structureglossary term (opens in a new window) depends on the type of cell, some structures are common to all eukaryoticglossary term (opens in a new window) cells. For example, all eukaryotic cells have a nucleus, membrane-bound organelles, a plasma membrane, and cytoplasmglossary term (opens in a new window). The nucleus of a cell surrounds the genetic material with a membrane. Other structures called organelles are also surrounded by membranes. The membranes around the organelles both protect and isolate, helping the organelles work more efficiently. Organelles perform various vital tasks, and each organelleglossary term (opens in a new window) has a specific structure related to its function. Organelles provide the cell with energy, excrete waste products, and make proteins. All eukaryotic cells also have a plasma membrane that envelopes the entire cell. The membrane has many passages through it. These passages chemically control what can enter or leave the cell. All eukaryotic cells also have cytoplasm. This jelly-like fluid fills the cell’s interior and contains thread-like proteins that help the cell keep its shape.
SUMMERIZED PLEASE ILL give brianly est
Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. The cell is the fundamental unit of structure and function in living things. All organisms are made up of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells. A cell is the smallest unit that is typically considered alive and is a fundamental unit of life. All living organisms are composed of cells, from just one unicellular to many trillions multicellular. I hope i helped you
Explanation:
For many generations, the flowers in a meadow have been pollinated by a particular species of honeybee. One year, a new species of
honeybee moves to the meadow. This new species pollinates the same flowers as the old species. Which description best predicts
what would happen if a new species of honeybee moves into a meadow that was already occupied by a particular honeybee that
pollinated the meadow?
Answer:
By the process of mating there will be again undesirable species (hybird) and the particular honey bee might get extinct.
There will be imbalance in ecosystem if a new species of honey bees moves into a meadow that was already occupied by a particular homey bees.
Which two climates have very low levels of precipitation?
dry and polar
polar and highlands
highlands and temperate marine
temperate marine and temperate continental
Answer:
arid and semiarid
Explanation:
Because they are the lowest in the climate areas. hope this somewhat helps you out
~dry and polar: cold air cant hold as much water vapour as warm air, so precipitation is less likely.
Hope this helped you- have a good day bro cya)
How many chromosomes does a average corvid have?
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:
by the way what is corvid
Unicellular organisms have different structures from each other.Explain why.
Answer:
The reason why is because in the process of reproduction; there are some mistakes in DNA replication (out of billions of base pairs about 120,000 mistakes). This is what brings us so much variation in organisms.
Which term names the types of elements usually found in meteorites?
Answer: minerals—pyroxenes, olivines, and feldspars—dominate the stony meteorites. Metals—kamacite and taenite—along with small amounts of schreibersite and cohenite dominate iron meteorites. The following list is a short guide to selected minerals found in meteorites.
Explanation:
Answer:
metals
Explanation:
i took the test
Which statement is true of carriers? Select all that apply.
A) They have one dominant allele.
B) They express the recessive trait.
C) They are heterozygous for a recessive disorder.
D) They can pass a gene for a recessive disorder.
B. They express the recessive trait
The carriers for a disease in a pedigree analysis is a heterozygous. They contain a dominant and a recessive allele. Thus, correct options are A, C and D.
What are genes?A gene is a segment of DNA that contains all the information for the development of organism. A carrier in genetics, is an individual who “carries” and can pass on to its offspring an allele associated with a disease and does not show symptoms of that disease. A carrier is an organism that carries two different alleles of a recessive gene and is thus heterozygous for that the recessive gene.
Dominant genetic disorders are those in which a mutation in just one copy of the gene pair is required for the disorder to develop. However, in recessive genetic disorders both alleles need to be recessive for the gene. This disease symptoms are only observed in case of homozygous condition.
Therefore, the correct options are A, C and D.
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what do you think would happen to a population of bacteria in a petri dish over time in ideal condition?
Answer:
the bacteria would continue to grow untill the agar is completly corroded as the bacteria eats away at it, after the agar is consumed the bacteria would die away as it doesnt have the sufficient nutrients to live
Explanation:
x+-2/3=4/5 respuesta
Answer:
x = 1 7/15
The answer is 1 7/15
Respuesta: x=22/15
Si puede, ¿podría darme lo más inteligente, por favor?
