Answer:
It forms water proof barriers so its insoluble in water
What was known before Franklin and Wilkins conducted their studies of DNA? Select three options.
DNA is found in the nucleus of a cell.
The human genetic code is made of 50,000 genes.
Organisms store and transmit genetic information.
DNA has a double-helix structure.
Cells contain protein molecules.
The correct answer will be-
1. DNA is found in the nucleus of a cell
2. Organisms store and transmit genetic information
3. Cells contain protein molecules.
Explanation:
The study of DNA started much before the discoveries of Rosalind Franklin and Maurice Wilkins.
Nucleus of cell was discovered by Robert Brown in 1831 but the material present inside the nucleus called "nuclein" (DNA) came from the studies of Johann Friedrich Miescher in 1869.
Proteins as a constituent of cell were discovered by the experimental analysis of Gerhardus Johannes Mulder in 1837.
DNA as a genetic material came from the experimental studies of Frederick Griffith in 1928, Oswald Avery, Maclyn McCarty, and Colin MacLeod in 1944, and Hershey and Chase in 1952.
Franklin and Maurice Wilkins are known for their work on the the structure of DNA as they were able to produce high-resolution X-ray photographs of DNA fibres called Photo 51 in 1952 using X-ray diffraction technique. By 1953 Franklin concluded concluded that DNA shows helical structure with phosphates on outer side.
Thus, 1. DNA is found in the nucleus of a cell
2. Organisms store and transmit genetic information
3. Cells contain protein molecules.
are the correct options.
Answer:
A, C, and E :DD
Explanation:
Hope this helps have a good day :>
The ___ in the limbic system stores and stores new information.
A: Hippocampus B: Hypothalamus C: Amygdala
Answer:
A
Explanation:
it is the formation of new memories and also associated with learning and emotions.
good luck:)
There is a relationship between the number of prey organisms and the number of predator organisms in an ecosystem. Identify this relationship and explain how it occurs.
Answer:
This relation should be called Predator-Prey relationship. In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. they affect the success and survival of each other’s species. The predator prey relationships greatly affect the populations of each species, for example if we take lynx as predator and hare as prey after some time the population of hare will start declining and population of lynx will increase because hare is being EATEN and lynx is the predator here.
A receptor site that a molecule can bind to that changes the shape of the active site is called a(n)
a) allosteric site
b) active site
c) disulphide bridge
d) MHC receptor
Answer:
a) allosteric site
Explanation:
An allosteric site is a site on an enzyme other than the active site where a molecule that is not a substrate binds. This changes the shape of the enzyme, making it harder for the substrate to bind and inhibits enzyme activity.
Hope that helps.
In order from smallest to largest, the ecological levels of organization are
A: biome, ecosystem, community, population, individual
B:community, individual, population, ecosystem, biome
C: individual, population, ecosystem, community, biome
D: individual, populations, community, ecosystem, biome
Answer:
D: individual, populations, community, ecosystem, biome
In order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).
What is an Ecosystem ?Ecosystems are the complex living organisms and their physical environment and all their concerned correlation in a specific unit of space.
An ecosystem can be classified as
1.Abiotic constituents
It consists of minerals, climate, soil, water, sunlight, and all other non living materials.
2. Biotic constituents
It includes all its living organisms.
By combining these constituents together generates two important forces:
The flow of energy from the ecosystem The galloping of nutrients within the ecosystem.
Ecosystems have varied sizes like some are tiny enough to be encompassed within single water droplets while others are big enough to embody entire topography and regions.
Organic matter engendered by autotrophs directly or indirectly bolster heterotrophic organisms. Heterotrophs are the consumers of the ecosystem which cannot make their own food. They utilize, reorganize, and finally decompose the complex organic substance made up from autotrophs.
Thus, in order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).
Learn more about Ecosystem, here:
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What is the connection between a property of life and carbohydrates?
Answer:
The simple carbohydrates include single sugars (monosaccharides) and polymers, oligosaccharides, and polysaccharides. Simplest group of carbohydrates and often called simple sugars since they cannot be further hydrolyzed. Colorless, crystalline solidwhich are soluble in water and insoluble in a non-polar solvent.
Explanation:
please mark as brainlist answers
Question 10 of 25
Which sentence best explains how a unicellular organism gets nutrients?
A. It has a digestive system that takes in nutrients.
B. It takes in all its nutrients through its cell membrane.
C. It combines specialized cells into tissues that take in nutrients.
D. It relies on individual specialized cells to take in nutrients.
SUBH
Answer:
c
Explanation:
The correct answer is D
How does Interphase relate to the 4 stages of the Cell Cycle?
Answer:
Interphase is the first stage of Mitosis. This is the cell cycle. Interphase is when the DNA is replicated
Hoped this helped :)
Which organelle in this image is the packaging unit of the cell that packages proteins for transfer throughout the cell?
1
8
6
9
PLEASE HELP ASAP before 6
True or False: Both predator and prey
species experience the same pattern of
"boom and bust" cycles.
Answer:
true
Explanation:
taxonomy select all that apply
Answer:
Select all that apply. Taxonomy _____. is an unnecessary science helps to classify the immense diversity of life is only used by some scientists is the study of animal behavior
Answer:
Hey you question is insufficient to select all that apply
A way in which humans can interact with the environment in a positive way is to
A all of these
B. feeding the birds
C. clean up the beaches
D. clean up the bay
Answer:
a
Explanation:
Marcus is completing a science experiment for class. He wants to see
what effect water temperature has on plants. If his experiment contains
one independent variable, which of the following would NOT be a
constant in his experiment? SC.H.1.3.2
A. the type of plant used
B. the water temperature
C. the room temperature
D. the pot used for the plants
Disruptive selection in the environment refers to?
A. One extreme/trait favored
B. Two extremes/traits favored
C. No extremes/traits favored
D. Three extremes/traits favored
Answer:
B - Two extremes with traits favored.
Explanation:
Removes individuals with average valued traits creating two populations with said extreme traits.
What makes carbon atoms ideally suited to their role in living things?
A.Their ability to form long chains of atoms
B.Their ability to form covalent bonds
C.Their ability to form liquid substances
D.Their ability to form compounds and with other elements
A. their ability to form long chains of atoms
thats the answer i got
Name the enzyme that breaks down H202.
02
H 20
catalase
H2O2
Answer:
Catalase
Explanation:
Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water (H2O) and oxygen gas (O2).
A catalyst is a substance that lowers the activation energy required for a chemical reaction, and therefore increases the rate of the reaction without being used up in the process.
Answer:
Carbon dioxide and oxygen
Explanation:
Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell
Answer:
organism, organ system, organ, tissue, cell
Explanation:
Answer:
C. organism, organ, organ system, cell, tissue
Explanation:
Took test on edg
In what positions are the sun, moon, and Earth during a full moon?
Answer:
they would be straight the sun behind the moon
Explanation:
shining light on it to seem lite
Which statement is not true of mitosis?
Answer:
you didnt put anything for me to solve
Explanation:
put something for me to solve
The statements are:
A There are four stages of mitosis
B It is the division of genetic material of a dividing eukaryotic cell into two parts
C it is a process that takes an average of eight minutes for any cell to complete the process
D each daughter cell receives a full set of chromosomes identical to the parent cell
i need da help wit dis 1
which of the following can cause a decrease in dissolved oxygen in the water ?
a. a small population of fish
b. a large number of plants
c. excessive plant debris
d. lack of animal life
Answer: c
Explanation: As the algae die and decompose, the process consumes dissolved oxygen. This can result in insufficient amounts of dissolved oxygen available for fish and other aquatic life.
Helpppppp meee! Pleaseee
Answer:
i'm pretty sure its false
Answer:
false
Explanation:
Which scientist most likely studied tadpole cells under a microscope? Schwann Janssen Hooke Schleiden
Answer:
The answer is Hooke
Explanation:
I am woke
The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.
What is RNA polymerase?RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.
Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.
Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.
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Which organelle was compared to... "the shipping and receiving
department" in the ice cream factory? (deciding what goes into the
factory and what leaves the factory) *
cell wall
nucleus
nucleolus
O cytoplasm
O organelles
cell membrane
Water molecules are able to attach to
other substances, particularly if they are
also polar.
Answer:
Water molecules form hydrogen bonds with each other and are strongly polar. This polarity allows it to dissociate icons in salts and bonds to each other polar substances such as alcohols and acids thus dissolving them.
a bird has a short sturdy beak that allows it to crush hard tough grains what does the beak's form to a specific type of food describe about the species of bird
Answer:
Niche
Explanation:
Which crop needs waterlogging in the field for improved growth and production?
Answer:
Rice
Explanation:
In diffusion, molecules
spread out
condense
In diffusion,molecules spread out condense
Answer:
Spread out
Explanation:
If you were to spray perfume, you would be able to smell if you moved slightly away from where you sprayed it as the molecules have diffused.
What is an example of ionization?
A. vegetable oil dissolving in water
B. table sugar dissolving in water
C. table salt dissolving in water
D. hydrogen chloride dissolving in water
Answer:
well.. I apologize if I'm wrong but I think it'd be C because ionization is when something basically can go into water and loose part of its' substance to become apart of the water and salt pretty much dissolves completely in water lol
Answer:
The answer is B
Explanation: