The theory of evolution is a scientific theory based on thorough testing and verification. It describes the facts about the living world and has withstood significant efforts to discredit it. The theory provides a framework for understanding and predicting the diversity of life on Earth.
Explanation:The theory of evolution is a scientific theory because it is based on thorough testing and verification. In science, a theory is a well-supported explanation for a set of observations, and the theory of evolution describes the facts about the living world. This theory has withstood significant efforts to discredit it and is widely accepted among scientists. It provides a framework for understanding and predicting the diversity of life on Earth.
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PLEASE HELP ON LAST 3 40 POINTS
Where low tide occurs?
Low tides occur between two high tide areas. They form 90 degree angles with the moon.
Where high tide occurs?
Parts of the earth when facing the moon, those parts experience the pull force, cause high tides. They occur in the areas closest to and farthest from the moon.
How often high tide occurs?
Hide tides occur twice a day. Coastal areas experience high tides every 12 hours.
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Select the correct answer from each drop-down menu.
The _____ gets rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete. The ______ helps these waste molecules exit the cell.
FIRST BLANK
-lYSOSOME
-RIBOSOME
-NUCLEUS
SECOND BLANK
-CELL MEMBRANE
-ENDOPLASMIC RETICULUM
-GOLGI APPARATUS
The Lysosome gets rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete. The Cell membrane helps these waste molecules exit the cell.
Lysosomes are organelles that are responsible for breaking down large molecules into smaller ones, and they help the cell to get rid of waste products.
Lysosomes contain a variety of enzymes that are capable of breaking down proteins, lipids, carbohydrates, and nucleic acids. Once these molecules have been broken down, they are released into the cytoplasm of the cell.The cell membrane is responsible for controlling what enters and exits the cell. It is selectively permeable, which means that it allows some molecules to pass through while preventing others from doing so.Therefore, Lysosome and Cell membrane are the correct choices that fits in the blanks.
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What makes up the cell membrane
The cell membrane is made up of a phospholipids that are arranged into two layers which are called lipid bilayer.
The cell membrane is composed of a phospholipid bilayer with embedded proteins, carbohydrates, and cholesterol. It is semi-permeable, allowing selective transport of substances.
The hydrophobic (water-repulsing) tails of the phospholipids face internal, while the hydrophilic (water-drawing in) heads face outward.
Implanted inside this bilayer are different proteins that carry out fundamental roles. These proteins can either traverse the whole film or connect to its surface. Also, carbs are frequently connected to these proteins on the film's external surface, helping with cell acknowledgment and correspondence. The membrane is able to control the flow of water, organic molecules, and ions through it because of this property, preserving the internal environment of the cell.In outline, the cell layer is comprised of a phospholipid bilayer with implanted proteins, carbs, and in creature cells, cholesterol. This design safeguards the cell's inward parts as well as controls the development of substances all through the cell.
Which is a part of interphase A. G1 phase
B. Telophase
C. Cytokinesis
D. Prophase
The correct answer is A. G1 phase.
Interphase is a part of cell cycle which includes G1, S and G2 phases. G1 phase is also called as first gap phase. During this phase cell grows large in size. It makes copies of cell organelles and makes molecular materials which are required for the later stage of mitotic division.
Interphase is comprised of three stages which are G1, S, and G2 phases. So the correct answer is option A.
Earlier the interphase was called as the resting phase of the cell. However a cell is not actually resting during the interphase rather the cell prepares itself for the cell division or mitosis during this phase.
During the G1 phase cell growth occurs and synthesis of proteins takes place in the cell. Also there is synthesis of organelles as well an increase in the cytoplasm volume. During the S phase synthesis of DNA takes place. During the G2 phase the cell continues to grow and divides the mitochondria.
So the G1 phase involves an increase in cellular contents of the cell.
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Compare the importance of both biotic and abiotic factors to an ecosystem
Answer:
A biotic factor is a living thing that has an impact on another population of living things or on the environment. Abiotic factors do the same thing, but they are non-living. Together, biotic and abiotic factors make up an ecosystem. To survive, biotic factors need abiotic factors. Hope it helps you .
Explanation:
Two species of frogs mate with each other. The embryo dies after a few cell divisions. What kind of reproductive isolation does this example represent? A. temporal isolation B. mechanical isolation C. postzygotic isolation D. gametic isolation
Answer:
The example of two species of frogs mating with each other, but the embryo dying after a few cell divisions, represents postzygotic isolation.
Postzygotic isolation refers to barriers that prevent the successful development or reproduction of hybrid offspring after mating between different species has occurred. In this example, the embryo dies after a few cell divisions, indicating that there is a barrier preventing the hybrid offspring from developing into a viable individual.
This type of reproductive isolation occurs after fertilization has taken place and can be caused by genetic incompatibilities between the two species. The genetic differences between the two species prevent the hybrid embryo from developing normally, leading to its death.
In contrast, temporal isolation refers to species mating at different times, mechanical isolation refers to physical incompatibilities preventing mating, and gametic isolation refers to barriers preventing successful fertilization. These types of isolation occur before fertilization takes place, whereas the example given in the question occurs after fertilization.
To summarize, the example of two species of frogs mating with each other, but the embryo dying after a few cell divisions, represents postzygotic isolation because it involves barriers preventing the successful development of hybrid offspring after fertilization has occurred.
how do u calculate these numbers from least to greatest 6.84, 8 5/7, 6.34, 6 1/4, 8 3/10, 8.15?
Answer:
6.25<6.34<6.84<8.15<8.3<9.142
Explanation:
The best way to compare these numbers is to convert all these numbers into the same form either fraction or decimal.
I will convert all the numbers into decimal.
[tex]6.84 \\8\frac{5}{7} \\6.34\\6\frac{1}{4} \\8\frac{3}{10} \\ 8.15[/tex]
[tex]8\frac{5}{7} \\= \frac{64}{7} \\= 9.142[/tex]
[tex]6\frac{1}{4} \\= \frac{25}{4} \\= 6.25[/tex]
[tex]8\frac{3}{10} \\= \frac{83}{10} \\= 8.3[/tex]
On arranging all the decimals numbers from in ascending order, we get -
[tex]6.25<6.34<6.84<8.15<8.3<9.142[/tex]
The _______ climates make up the largest climatic zone on Earth.
Hello!
To answer this question we need to understand the different groupings of climate zones.
TopicalTemperatePolarOf these different types, they can be broken into smaller climate zones such as
PolarBoreal ForestMoutainTemperate ForestMediterranean Dry GrasslandTropical GrasslandTropical Rain ForestDesertBased off research, we learn that Dry climates cover nearly 30% of Earth's surface. Making them the largest climatic zone!
which of these is an effect of an algal bloom ?
A. Bacteria are introduced to break down hydrocarbons in an oil spill .
B. materials containing metal are toxic to organisms that live in them .
C. the mercury contained in fish builds up in animals that eat the fish .
D. An increase growth in microorganisms results in oxygen depletion
(apex)
The correct answer is option D
The growth of algal bloom is caused due to excessive runoff rich in the nutrients like nitrogen and phosphorous. This run off comes from the agricultural field.
These nutrients aids in the growth of the algae(microorganisms) in large number. This growth forms a layer on the water body and use the oxygen present in the water and makes the water oxygen deficient.
Answer:
An increase growth in microorganisms results in oxygen depletion
Explanation:
just took it
after meiosis __genetically different cells are formed
After meiosis Four (4) genetically different cells formed.
ExplanationThe meiosis results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
For example:
A human cell with 46 chromosomes after meiosis will produce 4 cells with 23 chromosomes each.Answer:
4
Explanation:
Research from several sources is used to support the evolutionary theory that one type of sponge is more closely related to non-sponge animals than it is to other sponges. What does this suggest about classification in the animal kingdom?
Final answer:
Emerging research indicating that some sponges are more closely related to other animals than to different sponges calls for revisions to the animal classification system, considering evolutionary history and genetic data.
Explanation:
The research suggesting that one type of sponge is more closely related to non-sponge animals than to other sponges has implications for the classification in the animal kingdom. This suggests that traditional morphological classification systems might need to be revised in light of molecular and genetic evidence that can uncover deeper evolutionary relationships. Hence, the classification system in zoology, which characterizes animals based on anatomy, morphology, evolutionary history, embryological development, and genetic makeup, might need to adapt to new findings, underscoring the dynamic nature of scientific understanding.
Do a strip of copper and a cube of copper have the same mass and the same volume
Thus, the temperature of a substance can be determined by placing the .... All three have the same temperature, and they barely fit inside each other. ... The radiator is made of copper, and the coolant has a coefficient of volume expansion of . .... When ice cubes are used to cool a drink, both their mass and temperature
Final answer:
A strip of copper and a cube of copper do not necessarily have the same mass and volume. Their mass and volume depend on their respective shapes and sizes, even though they have the same density.
Explanation:
Whether a strip of copper and a cube of copper have the same mass and volume depends on their dimensions and densities. The mass of an object is related to its volume and density. Since both objects are made of copper, they have the same density. However, the mass and volume of each piece would vary based on their shapes and sizes.
To determine the mass of the copper pieces, one would need to weigh them, as mass is a measure of the amount of matter in an object.
To find the volume, for the strip, one might need to use water displacement or calculate it based on its dimensions, while for the cube, the volume can be found by cubing the edge length. If both pieces have the same mass, they will not necessarily have the same volume due to the different shapes.
process that breaks down glucose to create two molecules of pyruvic acid (pyruvate)
During glycolysis, glucose is broken down in ten steps to two molecules of pyruvate, which then enters the mitochondria where it is oxidized through the tricarboxylic acid cycle to carbon dioxide and water. Glycolysis can be split into two phases, both of which occur in the cytology.
Glycolysis is the process thet breaks down glucose to create two molecules of pyruvic acid. It is the ten steps process in which glucose is break down into pyruvate . Glycolysis occur in the cytoplasm. There is net gain of 2 ATP in the process of glycolysis. Pyruvic acid is the simplest of the alpha - keto acids.
Which spheres of Earth are influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks? Check all that apply. atmosphere cryosphere geosphere hemisphere hydrosphere
The spheres of earth that gets influenced by the human caused air pollution which leads to acid rains that dissolves the limestone rocks are atmosphere, geosphere and the hydrosphere.
This is because the atmosphere contains the polluted air which has the components of the acid rain. The acid rains accumulates on the hydrosphere if not collected by the geosphere. The geosphere is the one which is drastically affected by the acid rains as the limestone rocks melts.
atmosphere geosphere hydroshere
A unicellular organism that has a nucleus, a cell wall, and the ability to produce spores?
fungi and/or bacteria
A unicellular organism with a nucleus, cell wall, and ability to produce spores likely belongs to specific kinds of fungi, including yeasts and chytrids. These organisms are eukaryotic and utilize spores for reproduction, allowing them to adapt to various environments.
The unicellular organism that has a nucleus, a cell wall, and the ability to produce spores could be from a few different groups. These characteristics are indicative of eukaryotic unicellular organisms, specifically some fungi like yeasts (which are atypical members of generally multicellular or colonial fungal groups most are cup fungi = Ascomycota) and chytrids (Chytridiomycota, which are a fungal group with some colonial members). Yeasts reproduce asexually through a process known as budding, whereas chytrids can reproduce both sexually and asexually, producing zoospores in the latter method.
Spores are haploid cells that can give rise to haploid multicellular organisms or can fuse with another spore to form a diploid cell. This characteristic is crucial in the life cycle of these organisms, allowing them to reproduce and spread in various environmental conditions. Specifically, in a process like the one seen in chytrids where the zygospore germinates, it leads to the production of haploid spores through meiosis, which are then capable of generating new haploid, multicellular organisms through germination.
Identify the correct statement about differences between rough and smooth endoplasmic reticulum (ER).
The rough ER has ribosomes on its surface meanwhile smoothe ER does not.
The rough endoplasmic reticulum (RER) has ribosomes on its surface, which makes it appear bumpy and is involved in protein synthesis, whereas the smooth endoplasmic reticulum (SER) is smooth as it lacks ribosomes and is involved in lipid synthesis, calcium storage, and detoxification.
Explanation:The correct statement about the differences between rough and smooth endoplasmic reticulum (ER) is that the rough endoplasmic reticulum (RER) is studded with ribosomes, giving it a textured, bumpy appearance due to these protein-synthesizing organelles. In contrast, the smooth endoplasmic reticulum (SER) lacks ribosomes on its surface, resulting in a smoother appearance.
Functionally, the RER is primarily involved in the synthesis of proteins that are either secreted from the cell, incorporated into the cell's plasma membrane, or destined for lysosomes. The newly synthesized proteins are transported from the RER in transport vesicles that bud off from the ER. Also, the RER's membrane is continuous with the nuclear envelope, facilitating the transport of the mRNA. Meanwhile, the SER has various roles including lipid and steroid hormone synthesis, calcium ion storage, and detoxification of drugs and poisons.
It is important to note both RER and SER are essential to cell function, and they collaborate with each other and other cell structures, like the Golgi apparatus, to coordinate the synthesis and distribution of cellular products.
nucleotides are the basic unit of which macromolecules
nucleic acids is the basic unit of a nucleotides
What causes ocean water to be colder at the poles than at the equator ?
That answer is know to be C. Because the sun affects it most but the equator has an affect because of the location. For ex. if its close to Antarctica its colder! like the arctic ocean is absolutely frigid! Hope that this is helpful!
Answer:
Its C
Explanation:The other guy was close but wrong, i got a 100apex score
15 points!
The replication of DNA occurs during which of these stages of the cell cycle:
A. M
B. S
C. G1
D. G2
:)
When a cell passes the G1 checkpoint it enters the S phase of the cell cycle. During this phase DNA is replicated, so the answer is C
Which statements describe what geologists study? Check all that apply.
oxygen and other gases that surround Earth.
the solid parts of Earth.
the inside of Earth.
living things on Earth.
the forces that affect Earth.
the rocks and minerals that make up Earth.
The statements that describe what geologists study are:
The solid parts of Earth The inside of Earth The forces that effect Earth The rocks and minerals that make up EarthA geologist is a person that studies the things, characteristics and features that make up the earth. They study the geology of the earth.
Geology is the study of the things that make up the earth. It is also known as geoscience .
Some functions and roles of a geologist include:
Studying the insides of earthStudying of rocksStudying the history of the earthStudying the things that make up the earth, etcAs a result of this, we can see that a geologist studies the things that make up the earth and when doing this, he has a direct relationship with geology.
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Of the three lipid types phospholipids are more similar to fats true or false
False.
Hope this helps!
how is mitochondrial DNA mtdna typing used in forensic science
Mitochondrial DNA (mtDNA) typing is used in forensic science for it serves as an important tool in determining the recovered damaged, degraded or small sample source of the DNA. Mitochondrial DNA is a small genome that is found in the mitochondria, just outside of the nucleus of the cell.
Answer and Explanation:
The mitochondrial DNA (mtDNA) has a maternal mode of inheritance and, therefore, geneticists can trace the origins of a DNA sample by analyzing the mtDNA of forensic samples
What is the usual cooking time in soup for starchy vegetables, such as winter squash and beets cut to a small dice
Answer:
10 mins
Explanation:
Starchy vegetables like winter squash and beets typically take about 20-30 minutes to cook in a soup.
Explanation:The usual cooking time for starchy vegetables, such as winter squash and beets cut into a small dice, can vary depending on the specific recipe and desired texture. However, as a general guideline, starchy vegetables like winter squash and beets typically take about 20-30 minutes to cook in a soup.
It's important to note that cooking times can be influenced by factors like the size of the dice, the type of stove used, and the thickness of the soup base. It's always best to follow a recipe or check for doneness by testing the tenderness of the vegetables with a fork.
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Scientist observes a pair of separate chromosomes that have genes for the same trait ranch in the same order however some of the release of the genes are different what is the scientist most likely observing?
A. homologous chromosomes with heterozygous alleles
In ecology,a population is defined as all the
A) members of a single species in the biosphere
B) members of a given genus inhabiting a given area
C) members of a single species ihabiting a given area
D) abiotic and biotic factors in a given location
D) abiotic and biotic factors in a given location.
The structure of a substrate P strongly resembles substrate Q. In an experiment, By mistake P was used instead of Q as a substrate for the enzyme, Q-ase. The results obtained were identical to the results that would have been obtained using substrate Q. Why did substrate P work in place of substrate Q?
A) P and Q are coenzymes
B) P and Q are holoenzymes
C) P and Q have similar binding properties
D) P and Q have different binding properties
The structure of the substrate P and Q is mostly similar. This strong structural similarity would mean that the binding properties of these two different substrates might also be similar. The production of similar results by using substrate P instead of the substrate Q ensures this similarity. The substrate P binded with the enzyme similar to the substrate q and resulted in the same products.
Hence, the correct answer is 'Option C- P and Q have similar binding properties'.
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Create 3 questions about the cause-and-effect relationship between the genetic code
and gene expression, mechanisms of gene regulation, and/or the role of DNA segments that do not code for proteins.
1.what is the difference between genetic code genes and a gene expression?
2. what is the difference of mechanism genes and the DNA segments between them?
3.what is the effect of all four together or their roles to us?!
the water cycle, like the other cycles, is a “closed system.” what does that say about the importance of keeping the water on earth free from population
Like you stated, the water cycle is a closed sytem.Therefore, it's never ending it will keep on going, and repating it's self forever.So we need to keep it clean because, we use water for food, dishes, etc which is a pro.The con of trying to keep water is fresh is the fact we bathe, and clean with water. Even though we bathe, and stuff with water we can try to keep water clean.Even though water goes through a process and people say the water system cleans water doesn't mean it's true.The best ting we can do to keep free from population is use less water, and try keeping large, small bodies of water clean.
The water cycle is crucial for Earth's ecosystems, climate, and human survival, emphasizing the importance of preserving water from pollution. Urban development can disrupt this cycle, and over-use and pollution of freshwater threaten the limited supply, affecting both the environment and over a billion people worldwide.
The water cycle, also known as the hydrologic cycle, is a closed system where Earth's water continually moves and changes states between liquid, vapor, and ice. However, this cycle is considered 'closed' in the context that the total amount of water on Earth remains relatively constant, with minimal loss and gain from the outer space. The importance of keeping water free from pollution is vital, as over-use and pollution of freshwater threaten the limited supply that humans and ecosystems depend on. A healthy water cycle is essential for ecosystem dynamics, as it influences climate, environmental conditions, and supports life and ecosystems on the planet.
Urban development contributes to the disruption of the water cycle by stripping plant cover, creating impervious surfaces that prevent precipitation infiltration, leading to erosion and flooding downstream. Additionally, water cycling involves significant energy transfer, crucial for maintaining Earth's energy balance. The importance of the water cycle and the necessity to keep water free from pollution cannot be overstated, given that more than a billion people lack adequate freshwater access, and the situation may worsen with the growing human population.
explain how the structure of a cellouse molecule relates to the molecules function
The main component of cell walls is cellulose. The cellulose make stems, leaves and branches. So it play an important role in building of tissues. ... The molecules of cellulose have hydroxyl group that form hydrogen bonding with other cellulose and provide support to plant.