Answer:
the nucleus at the central part of the cheek cell contains DNA. When a drop of methylene blue is introduced, the nucleus is stained, which makes it stand out and be clearly seen under the microscope. And methylene blue stains negatively charged molecules in the cell, including DNA and RNA. This dye is toxic when ingested and it causes irritation when in contact with the skin and eyes. The cells seen are squamous epithelial cells from the outer epithelial layer of the mouth.
Explanation:
Which is not a reason that humans depend on the ocean?
Food
Tornado disruptor
Transportation
Climate regulation
Answer:
Tornado disruptor
Explanation:
humans get seafood from the ocean. there is a thing called maritime transport and that means the ocean serves as a way of transportation and the ocean serves as a climate regulator because it regulates the concentration of CO2.
A mushroom grows on a dead, rotting oak tree lying in the forest. What describes the tree and the mushroom?
Answer:
The oak tree was a producer, and the mushroom is a decomposer.
Are any sperm or egg cells identical to each other in meiosis?
Answer:
yes
Explanation:
Answer:
Goodnight ,
Nope not all egg cells are identical that would be in most cases impossible.
PLSSS HELP IMMEDIATELY!!!!! i need help rn!! only help if u know, i’ll give brainiest if u don’t leave a link
Answer:
Its keen eye sight helps it to see prey from the sky
Explanation:
Second option, doesn't make sense because their white and brown feathers aren't used for camoflouge
Third option, bald eagles fly not swim
Fourth option, bald eagles use their beaks for critical tasks, such as building nests, catching food and preening.
I mark Branliest for the correct answer quickly please listen to me Eyes Blue
Answer:
1(i think)
Explanation:
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.
1. The bio-molecule that is part of DNA is the carbohydrate. *
A: Agree
B: Disagree
2. Each nucleotide has 3 parts
A: Agree
B: Disagree
3. Deoxyribose is the base in DNA.
A: Agree
B: Disagree
4. Chargaff found the same four bases are found in the DNA of all organisms.
A: Agree
B: Disagree
5. Cytosine is always paired with thymine.
A: Agree
B: Disagree
6.The proportion of the four bases are the same for all organisms. *
A: Agree
B: Disagree
7. The base pairs are held together with hydrogen bonds.
A: Agree
B: Disagree
8. DNA strands on the double helix are identical to each other.
A: Agree
B: Disagree
9. Scientists Watson and Crick made the first 3D model of DNA.
A: Agree
B: Disagree
10.What is the complementary DNA strand to the following: CGT AAG CGC TAA TTA *
A: CGT AAG CGC TAA TTA
B: GCA TTC GCG ATT AAT
C: GCA UUC GCG AUU AAU
11. What is the complementary DNA strand to the following: ACT AAC GGT AGC TAG
A: TGA TTG CCA TCG ATC
B: ACT AAC GGT AGC TAG
C: UGA UUG CCA UCG AUC
What is the complementary DNA strand to the following: GGC ATT CGC GAT CAT
A: CCG TAA GCG CTA GTA
B: CCG UAA GCG CUA GUA
C: GGC ATT CGC GAT CAT
Answer:
1) Not sure.
2) True. Deoxyribose (5-carbon sugar), a phosphate group, and a nitrogenous base.
3) Disagree. There are 4 bases: adenine (A), guanine (G), thymine (T), and cytosine (C).
4) Not entirely sure, I think agree.
5) Disagree. Cytosine is always paired with guanine.
6) Agree.
7) Agree.
8) B. They are complementary to each other.
9) Not sure.
That's all I feel like doing.
Where does the process of translation occurs ??
Answer:
ribosome
Translation occurs in a structure called the ribosome, which is a factory for the synthesis of proteins. The ribosome has a small and a large subunit and is a complex molecule composed of several ribosomal RNA molecules and a number of proteins.
Explanation:
I hope this helps and pls mark me brainliest :)
Which type of muscle is long and striated and contains multiple nuclei?
Smooth Muscle
Cardiac Muscle
Muscle of the Digestive System
Skeletal Muscle
Answer:
Skeletal Muscle
Explanation:
Answer:
Skeletal Muscle
Explanation:
When identifying the agent responsible for causing a disease, why is evaluation of colony morphology not enough?
Answer:
Some infectious diseases are distinctive enough to be identified clinically. ... Infections may be caused by bacteria, viruses, fungi, and parasites. ... Microbial Identification: Colony and cellular morphology may permit preliminary ... Diagnostic medical microbiology is the discipline that identifies etiologic agents of disease.
Explanation:
Microorganisms have antigens present on their surface, Antigen tests detect the presence of a microorganism directly so that doctors can diagnose an infection quickly, without waiting for a person to produce antibodies in response to the microorganism.
Evaluation of colony morphology is not enough as it is not a definitive test. colonies of different bacteria can look the same, so it can help narrow.
What is antigen tests?An antigen test is an immunoassays test used for the detection of a specific viral antigen that indicates current viral infections.
Hence, Antigen tests detect the presence of a microorganism whereas, Evaluation of colony morphology is not enough as it is not a definitive test.
To learn more about the Antigen click here
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5 points
A student wants to test different hormones for a science fair project.
Which of the hormones listed below the student use to increase the rate
of ripen of fruit? *
Gibberlinins
Ctyokinins
Auxins
Ethylene
Answer:
Ethylene
Explanation:
Ethylene is a hormone required to trigger fruit ripening, and it can be blocked by using synthetic compounds, such as 1-methyl-cyclo-propene (1-MCP).
Please help biology
Answer: down
Explanation: bio teacher here
Describe the motion along the San Andreas Fault.
Answer:
The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal).
what type of destruction result in primary succession
Answer:
Destruction that ends with the creation of new land, like a volcanic eruption
Explanation:
Primary succession refers to how life comes to be in a new land that has never been inhabited before. So any type of destruction that creates land that has never supported life would cause primary succession. Volcanic eruptions is the most common type of destruction for primary succession because the lava cools and becomes new land. Primary succession is defined by succession occurring in an area that does not have any soil for life to grow on.
Which material would be used if the main criterion was keeping the cost of materials as low as possible? Which material would be used if the main criterion was getting the best performance from the material
Answer:
Low cost has low quality whereas high cost has high quality.
Explanation:
If the main criterion was keeping the cost of materials as low as possible so he must used the materials of low quality for their work because the low quality materials are made of cheap material while on the other hand, if the main criterion was getting the best performance from the material so he has to used the materials of high quality. The high quality materials are very expensive but its performance is excellent as compared to cheap materials.
Can someone help me
Answer:
its c my dude
Explanation:
brainliest plz
Which term describes the type of digestion that results from chewing and crushing food into smaller pieces?
absorption
peristalsis
chemical digestion
mechanical digestion
Answer:
mechanical digestion
Explanation:
Please help i am giving away brainiliest
Describe the Lysogenic cycle.
No dam links
Answer:
Here ya go
Explanation:
The lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm. In some interactions between lysogenic phages and bacteria, the lysogenic conversion may occur, which can also be called phage conversion.
Which of the following statements is true about the process of Photosynthesis? *
A. Carbon Dioxide is produced
B. Sugar is produced
C. ATP is produced
D. Water is produced
Answer:
carbon dioxide is produced
Explanation:
I hope this helps :)
PLEASE HELP!!
What forms are chromosomes in during:
Telophase
Early prophase
Late prophase
Metaphase
Anaphase
Telophase
Cytokinesis
(Choices are chromatins, chromatids, and sister chromatids)
Answer:
chromatids.
Explanation:
12345678910
1. Why do trees that grow alone in a field often have a large spread out canopy of leaves as well as being as wide as it is tall, whereas trees that grow in a
rainforest are extremely tall and have concentrated canopies at the very top of the tree?
Answer: C
Explanation:
During the spring of 2015, it was predicted that the number of chipmunk babies born
increased by 20%. Data collected through observations confirmed this
prediction. Chipmunks were seen scurrying all over the forest.
Grizzly bear
Red-Tailed
hawk
chipmunk
Deer
marmot
grouse
berries and flowers
grasses
seeds
Mushrooms
And
earthworms
How will this increase in the number of chipmunks most likely effect this food web?
Answer:
The population of Red-Tailed Hawks will increase.
In order to maintain homeostasis, it is most important for an animal to be able to ?
F increase its prey population
O respond to its environment
H change its habitat
o hide from its predators
Answer:
respond to its environment
Explanation:
Which statement about natural selection is most correct?
a) adaptations beneficial in one habitat should generally be beneficial in all other habitats as well
b) different species that occupy the same habitat will adapt to that habitat by undergoing the same genetic changes
c) adaptations beneficial at one time should generally be beneficial during all other times as well
d) well adapted individuals leave more offspring and thus contribute more to the next generations gene pool, than do poorly adapted individuals
Answer:
The most correct statement is - Well-adapted individuals leave more offspring, and thus contribute more to the gene pool, than poorly adapted individuals.
Explanation:
Which statement best describes how cell theory relates to a stem cell's ability to
change into specialized cell types?
The stem cells have the unique ability to undergo cellular differentiation which results into formation of a more specialized cell type which performs a unique function in body. Such as blood cells, neurons, etc.
What is Cell theory?
Cell theory has been proposed which describes various properties of a cell and how these cells develop. The theory has given some postulates and one of these postulates is that the new cells originate from pre-existing cells. Thus, the cell theory explains that the specialized cells which are present in body are synthesized from the stem cells.
Under the favorable conditions, the stem cells divide to form specialized daughter cells. These daughter cells become either a new stem cell or the specialized cells with a more specific function which includes blood cells, neurons, muscle cells or bone cells.
Learn more about Cell theory here:
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Which of the following geologic processes occurs in the shortest amount of time?
A. the erosion of a river canyon
B. separation of continents
C. the formation of an island chain
D. an earthquake
Answer:
an earthquake
What’s your favorite car first to answer gets brainliest
Answer:
Lamborghini
I don't know if I spelt it right
Answer: It has to be the Lexus is500 or the Acura Tlx
Explanation:
Please Help brainiest for correctt and first answer
Answer:
B: to break down sugar and release...
Explanation:
Mitochondria is the powerhouse of the cell! It breaks down sugar that comes into the cell and releases it back into the cell as energy
All eukaryotic cells have a —
1:cell wall
2:flagellum
3:nucleus
4:chloroplast
help me its timed pleasee
Answer
neucleus
Explanation:
In order for natural selection to occur, there must be variation within the population. Which statements
are an accurate reflection of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
C
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection,
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.
Answer:
E, B, D (im not sure about D, but definitely E and B)
Which of these occurs in sexual reproduction but not in asexual reproduction?
a
The genetic information is identical to the parents.
b
The offspring are made of cells.
c
The genetic information comes from the parents but is not identical.
d
The offspring inherit traits from the parents.
Answer:
c
Explanation:
Only in asexual reproduction the genetic information is identical. Sexual produces genetics that are combination of both parents, producing non-identical offspring.