The three basic parts of a cell are the nucleus, which is the control center, the cytoplasm where cells carry out their functions, and the cell membrane that protects the cell and regulates what enters and exits.
Explanation:There are numerous parts of a cell, though three basic parts include the nucleus, the cytoplasm, and the cell membrane.
Nucleus: This is the cell's control center. It contains information for the cell's function and replication, protected within the nuclear envelope. It houses chromosomes, made up of DNA, which direct the cell's activities.Cytoplasm: This is a jelly-like substance within the cell in which other cellular components are found. It provides a medium for all metabolic reactions taking place within the cell.Cell Membrane: This is a thin layer that surrounds the cell, providing protection and regulating the substances that go in and out of the cell. It is semi-permeable, only allowing certain substances through.Learn more about Cell Structure here:https://brainly.com/question/31349292
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Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane?
Answer:
what are the options
Explanation:
"what happens to the neurons in your brain every time you learn something new?"
What effect would a drop in the size of the krill population have on the antarctic food web and why?
Answer:
Krill is an zooplankton species that is extremely abundant in Antarctic water bodies. These zooplanktons feeds on phtoplanktons present in the Antarctic water bodies. Therefore, in antarctic food chain Krill belong to primary consumer trophic level. In Antarctic they are source of food for seals, penguins, whales, fishes and birds. These are included in secondary, tertiary and quaternary trophic levels of the food chain. The drop in the size of the krill population will result in limitation of populations of species at higher trophic levels. As, many food chains are interconnected to form a food web therefore, the drop in size of Krill in one food chain will also affect the overall food web of Antarctica.
True or false? pathogens can enter the body through animal bites.
"in _____________, a radiopharmaceutical is inhaled to obtain a lung scan"
How might abundant amounts of food allow herons to reproduce more often?
Fraternal twins are ________ similar genetically than are regular, non-twin siblings.
Final answer:
Fraternal twins are no more similar genetically than are regular, non-twin siblings. Fraternal twins have the same level of genetic similarity as non-twin siblings because they come from different eggs fertilized by different sperm. Their similarity in IQ likely stems from similar environmental treatments rather than genetics.
Explanation:
Fraternal twins are no more similar genetically than are regular, non-twin siblings. Fraternal twins develop from two different eggs that are fertilized by different sperm, meaning their genetic material varies the same as in non-twin siblings. Although fraternal twins may have more similar IQs than do nontwin siblings, this similarity in IQ is likely due to the fact that they are treated more similarly than are siblings in terms of environmental factors, rather than having more genetic similarity.
Distinguish between external and internal stimuli. give an example of each.
organism to respond to a external is \sensitivity
Explanation:
How does crossing over add to the genetic diversity of sexually reproducing organisms?
A: It involves segments of two homologous chromosomes trading places.
B: It involves random segregation of the homologous chromosomes to each daughter cell.
C: It involves fertilization of an ovum by any one out of millions of sperms.
the answer is B. it involves random segregation of the homologous chromosomes to each daughter cell
The presence of a prosthetic implant indicates that the skeleton is definitely not prehistoric.
a. True
b. False
Which congenital disorder is characterized by local narrowing of the aorta just proximal to the insertion of the ductus arteriosus?
The property of water whereby molecules tend to stick to one another is called:
Adhesion and cohesion effect every water molecule on Earth and their interactions with other molecules.
What is adhesion and cohesion?The ability of similar molecules (of the same substance) to adhere to each other as a result of mutual attraction is the quality known as cohesion. The capacity of distinct molecules or surfaces to attach to one another is referred to as adhesion. Solids, for instance, possess excellent cohesive qualities, which allow them to avoid adhering to the surfaces with which they come into contact.
Cohesion: Water has a natural tendency to attract more water. Adhesion: Water has a tendency to draw other substances to itself. Both adhesion and cohesion are qualities of water that have an effect on each and every water molecule on the planet, as well as the way water molecules interact with the molecules of other substances.
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Scientists often form hypotheses based on particular observations. Which of the following is NOT true of a good hypothesis?
A) A good hypothesis is complex.
B)A good hypothesis is testable.
C) A good hypothesis is logical.
D)A good hypothesis predicts future events.
The phase of mitosis during which the chromosomes move toward separate poles of the cell is
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Territorial behavior does not extend to organisms of different species. please select the best answer from the choices provided t f
The given statement is false.
The territorial behavior is an intra-species social behavior of the organism. In territorial behavior, the organism marks its territory and prevents it from the incursion of the other members of the same species. This behavior is not an inter species behavior, so, the effectiveness of the marking of the territory remains within the same species.
1. Perform a cross between two pea plants with the following characteristics: One is heterozygous for the dominant trait of wrinkled seeds (W); the other is homozygous for the recessive trait of smooth seeds (w). Fill in the genotypes of the offspring in the Punnett square. Then state the percentages of each genotype and phenotype of the offspring.
Answer:
Possible Genotypes are Ww and ww
Percentage of genotype Ww - [tex]50[/tex]%
Percentage of genotype ww - [tex]50[/tex]%
Possible phenotypes are Wrinkled and smooth
Percentage of Wrinkled phenotype - [tex]50[/tex]%
Percentage of smooth phenotype - [tex]50[/tex]%
Explanation:
Given -
Parent I is heterozygous for the dominant trait of wrinkled seeds. Thus, its genotype would be "Ww"
Parent II is homozygous for the recessive trait of smooth seeds. Thus, its genotype would be "ww"
The punnet square representing the cross between "Ww" and "ww" is as follows -
W w
w Ww ww
w Ww ww
Possible Genotypes are Ww and ww
Percentage of genotype Ww - [tex]50[/tex]%
Percentage of genotype ww - [tex]50[/tex]%
Possible phenotypes are Wrinkled and smooth
Percentage of Wrinkled phenotype - [tex]50[/tex]%
Percentage of smooth phenotype - [tex]50[/tex]%
Discuss the major functions of the lymphatic system
The major functions of the lymphatic system include:
1. removing interstitial fluid from tissues
2. absorbs/transports fatty acids
3. transports white blood cells to and from lymph nodes into the bones
4. Transports antigen cells to the lymph nodes where the immune response is activated.
The lymphatic system is part of the body's immune system, performing three main functions: maintaining fluid levels in the body's tissues, absorbing fats from the digestive system, and protecting against infections.
Explanation:The lymphatic system is a crucial part of the body's immune system. It has three major functions: maintenance of fluid levels in the body's tissues, absorption of fats from the digestive tract, and protection against infections.
The lymphatic system helps maintain fluid levels by collecting excess fluid and proteins from tissues and returning them to the bloodstream. This process prevents swelling and helps with circulation.
The lymphatic system also plays a significant role in the absorption of fats from the digestive system. Lacteals, special lymphatic vessels located in the lining of the small intestine, absorb dietary fats that cannot be transported directly into the bloodstream, and then transport them to the blood circulation.
Last but not least, the lymphatic system is essential for our body's defences. Its complex network of lymph nodes, vessels, and organs such as the spleen and thymus serve as filters, trapping microbes, cancer cells and foreign substances, which are then destroyed by lymphocytes.
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Determine how hypotonic hypertonic and turgor pressure are interrelated.
How is a cell like factory?
Cell is like a factory because Cells and factories are analogous because they operate in a methodical manner, with various parts carrying out specific functions to achieve a larger goal. For example, factories produce goods using blueprints, while cells carry out functions like protein synthesis based on DNA instructions
Explanation:Cells are often compared to factories due to their similar functional structures and operations. For instance, a factory has different departments that specialize in different functions, in the same way, a cell has different organelles each performing a specific role to maintain the cell's overall function, much like a factory's assembly line.
Each cell contains genetic instructions in the DNA much like the blueprints used in a factory. The Proteins, which are crucial for most of the cell's functions, are produced in the ribosomes, similar to a commodity being produced in a factory. This analogy is further highlighted by the cell cycle, where cells grow and divide to produce more cells in a controlled and systematic manner similar to a production line in a factory.
As both cells and factories operate in a systematic and controlled manner, with several small components working together to achieve a larger goal — survival in the case of cells, and production in the case of factories.
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One important relationship between chemical and mechanical weathering is
Answer:
mechanical weathering can produce smaller pieces of rock that have more surface area for chemical weathering to work on.
Explanation:
As mechanical weathering breakdown the rocks into smaller pieces, mechanically, the chemical weathering on the rocks also increases. This is because smaller pieces of the rock have a larger surface area to volume ration on which chemical weathering can act upon. This even further increases the weathering of the rock.
Correctly match the term and definition: extending a body past the anatomical position
Which layer contains loose connective tissue and has about half of the body's stored fat?
Which is more useful when identifying a mineral: the mineral's color or the mineral's streak?
Jack was diagnosed with persistent depressive disorder and has experienced recurrent episodes of major depressive episodes. in the intervals between the episodes, he does not seem to return to ""normal."" jack's condition is referred to as
Why are the structure and function of the pont du gard described as "marks of roman civilization"?
All of the following are part of a prokaryotic cell except All of the following are part of a prokaryotic cell except an endoplasmic reticulum. a cell wall. DNA. a plasma membrane. ribosomes.
Answer: Endoplasmic reticulum
Explanation:
The endoplasmic reticulum is a membrane bound organelles which is found in the eukaryotic cell. This is found in the eukaryotic cell that forms a inter connected network of flattened membrane- enclosed in the sacs.
The enclosed sac or tube like structure in the cell is known as cisternae. It is a double membrane bound organelle which helps in the modification and sorting of proteins.
The correct answer is endoplasmic reticulum.
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Which are contained in the upper leaf cells?
A. the vein, chloroplasts, and phloem
B. the cuticle, phloem, xylem, and stomata
C. stomata, phloem, xylem, and chloroplasts
D. the cuticle, surface cells, and chloroplasts
Answer: D. the cuticle, surface cells, and chloroplasts
Explanation:
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How many carbon atoms are in w molecule of maltose if the molecule has 12 oxygen atom?
A)12
B)24
C)10
D)6
Differential reproduction of genotypes leads to evolution via what process? inbreeding natural selection genetic rescue genetic drift mutational load