Answer:
The evidence from the Hershey-Chase experiment demonstrated that DNA, not protein, is the genetic material DNA contains phosphorus, but protein does not was as result of some analysis in which it was discovered that Protein contains sulfur and DNA does not.
This was what led to the use of radioactive phosphorus and radioactive sulfur in self-identification.
help plz i will do anything
Answer:
B
Explanation:
Inertia is the tendency of an object to resist changes in its state of motion and it varies with mass. Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has.
What is the keystone species
Answer:
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically
Explanation:
Answer:a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Explanation:
The American Beaver (Castor canadensis) is one example of a keystone species in North America. In any arrangement or community, the “keystone” is considered one of the most vital parts. In a marine ecosystem, or any type of ecosystem, a keystone species is an organism that helps hold the system together.
When you get home from school, you decide to make some ramen noodles for an after school snack. You notice that the pack of ramen calls for 3 cups of water per pack. You add and heat up the water and you dump your ramen in the pot. You let the ramen noodles cook in the water for 5 minutes. As your are straining your ramen noodles, you notice the noodles are larger and there is less water in the pot. Explain what process just happened and why. How does this relate to the process of
cell?
Answer:
Osmosis.
Explanation:
Osmosis occurs in the noodles because the water moves inside the noodles which make them swells. Osmosis is a process in which particles moves from the external environment into the cell through a semi permeable membrane. The water present goes inside the noodle and the noodles increases in size just like cells when the water moves inside the cell it swells due high concentration of water.
Answer:
osmosis
Explanation:
Which of the following is an example of a nonmetallic mineral?
a sulfur
b. lead
c. aluminum
d. gold
Please select the best answer from the choices provided
A B C D
Answer:
a. sulfur
Explanation:
Sulfur is an example of a nonmetallic mineral
Non-metallic mineral
Non-metallic minerals are the minerals that do not contain metals, eg limestone, mica, coal etc. Such materials lack metallic characteristics like good electric and thermal conductivity, luster, rigor and malleability.
Sulfur is a non-metallic element with atomic number 16. It is considered as non metal because:
It is poor conductor of heat and electricity. Its density is lower than that of all metals. The electronegativity of sulfur is very high as compared to other metals. It is multivalent atom which is tasteless and odorless.
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Describe how a rainforest can reach a point when it cannot be restored by secondary ecological succession
Answer:Although the secondary forest will be low in diversity and poorly developed, the forest cover will be adequate for some species to return (assuming they still exist). The solution must be based on what is feasible, not overly idealistic, and depends on developing a new conservation policy built on the principle of sustainable use and development of rainforests. Beyond the responsible development of rainforests, efforts to rehabilitate and restore degraded forest lands along with the establishment of protected areas are key to securing rainforests for the long-term benefits they can provide mankind.
Explanation:
i lloke dit up online because i have not did this yet
A very high damaged leads to no restoration of rainforest by secondary ecological succession.
A rainforest can reach a point when it cannot be restored by secondary ecological succession when the large portion of the rainforest is destroyed and most of diversity is vanished. At this time, restoration is impossible due to very high damages.
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. Rainforest have a high biodiversity that helps it to resist damage but at a certain limit so we can conclude that very high damaged leads to no restoration of rainforest by secondary ecological succession.
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what is thesaurus and online resources?
Answer:
thesaurus is a book that is filled with all types of synonyms for words
synonyms are words that are different but same in meaning
eg: yummy
another word for yummy is delicious
so delicious is a synonym that is included in the book named thesaurus
hope it helps
; )
Explanation:
Identify your favorite meal and explain where each of the four molecules of life can be found.
Answer:
Spaghetti. Wheat is in the noodles and is found it a field. Tomatoes is the sauce and is grown at a farm. Cows or chicken is used for the meatballs and the are on a farm. And these all have mass, atoms, and nutrients to help your body grow and be strong.
Explanation:
The movement of matter across a cell membrane against a concentration difference is called active transport , and it requires?
which fungi has single cell
Yeasts are known as single celled fungi. Around 1,500 species of fungi are recognised as yeasts.
Fats are the predominant forms of a class of biological molecules called _______, which also includes fatty acids and steroids, among other molecules. These biomolecules readily dissolve in _______ solvents such as hexane and chloroform. Because of their insolubility in water, fats and other biomolecules in this class are said to be_______. Triacylglycerols, also known as triglycerides, are a storage form of fat found in adipose tissue that consist of glycerol bound to_______. These fats are categorized based on the bonding of the carbon atoms in the chain. Fats that contain chains with no double bonds are classified as_______ , whereas those that contain double bonds in the carbon chain are _______.
Answer:
1. Lipids
2. Non-polar
3. Non-polar
4. Fatty acids
5. Saturated fats
6. Unsaturated fats
Explanation:
LIPIDS are one of the four major biomolecules in living systems. A form of lipids are fats which constitute most lipids i.e. predominant. Lipids also includes fatty acids, steroids and other molecules.
Lipid biomolecules readily dissolve in POLAR solvents such as hexane and chloroform. Because of their insolubility in water (polar solvent), fats and other biomolecules in this class are said to be NON-POLAR.
Triacylglycerols, also known as triglycerides, are forms of fat that is composed of a glycerol molecule bound to three molecules of FATTY ACIDS.
Based on the bonding of the carbon atoms in the chain, fats that contain chains with no double bonds are classified SATURATED FATS, while those that contain double bonds in the carbon chain are UNSATURATED FATS.
Which conditions need to be in balance for cells to function? Check all that apply.
A student views 2 cells through his microscope. In cell A, he observes it to be rather large and has a lot of structures including a nucleus in it that make it complex in cell B, he observes that it is much smaller than cell A and does not have many structures inside which he claims makes it less complex What is true about these cells?
A. Cell A is a prokaryote while cell B is a eukaryote
B. Both cells are eukaryotes
C. Both cells are prokaryotes
D. Cell A is a eukaryote while cell B is a prokaryote
Answer: The answer is D
prokaryotes are a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
If you have 11 neutrons and 6 protons what is the total mass?
is a dragon fly a insect
Answer:
Yes
I hope this helps!
15
Direction. Encircle the letter of the correct answer.
1. Which of the following best explains convection current in the mantle?
a. The driving force due to heat from mantle that facilitates the slow movement of
lithospheric plates.
b. The magnetic force at the poles that moves the lithospheric plates away from
one another.
C. The gravitational force of the moon that pulled the lithospheric plates away from
one another.
d. The force of the atmosphere that pushed the lithospheric plates.
Answer:
the answer is letter A
Explanation:
thats my answer
What are the dimensions of the human skeleton?
Answer
Human skeleton, the internal skeleton that serves as a framework for the body. This framework consists of many individual bones and cartilages. There also are bands of fibrous connective tissue—the ligaments and the tendons—in intimate relationship with the parts of the skeleton. This article is concerned primarily with the gross structure and the function of the skeleton of the normal human adult.
,
You are curious about the effects of different watering schedules on your favorite fruit, strawberries. You set up plants, all the same age and size, and plant them in identical pots with the same potting soil. You water them once a week, every day, or every other day. Every day, you check the plants for strawberries, and record the number and size of the berries produced by each plant.
The complete question is as follows:
What is the independent variable in this strawberry experiment?
O the type of pots
O the number and weight of strawberries produced
the potting soil
O the water schedule
O size and age of plants
Answer:
The correct answer is - the watering schedule.
Explanation:
Independent variable is the variable or the factor which is changed or manipulated during a study or experiment to find the effect on the dependent variable.
The variable that is manipulated in this experiment is the watering schedule and the aim of the experiment is also finding the role of the effect of the watering schedule on fruit production. In this study, the watering schedule is manipulated for different pots of plants to see the effect on the production of fruit.
The part of the cell that is like your brain and gives instructions to the cell is
A.nucleus
B.protoplasm
C.membrane
D.fat cells
Help please
How quickly must non-frozen ready to eat foods be consumed
Find, in km/h, the rate at which a car travels if it
goes 38.5km in 35 min.
Except for a pairing of sex chromosomes, homologous
chromosomes_______.
a. carry the same genes
b. are the same shape
c. are the same length
d. all of the above
Answer:
Homologous chromosomes carry the same genes and have the same shape and length, so all the choices are correct.
Explanation:
The homologous chromosomes are so called because each of them has the same DNA molecule, giving rise to the same genes, distributed in the same location within the chromosome.
Somatic cells are diploid, which means that the genetic information that determines specific characteristics is distributed in pairs. Each of the chromosomes that form a pair comes from the father and mother, and the members of a pair are known as homologous chromosomes.
The homologous chromosomes are characterized by having the same shape and size, and contain the same genes, although the information contained in them —the alleles— may be different. Hence the possibility that one allele is dominant and another recessive on two chromosomes of a pair.
At the end of glycolysis, there is a net gain of _____ ATP and 2 molecules of ________ are made.
Question 3 options:
4, NAPH
2, pyruvic acid
4, glucose
2, NAD+
11. An individual who is heterozygous for rob(13;14) is at increased risk for having a child affected by Patau syndrome. Please briefly explain why.
Answer:
because of Chromosome-13 rearranges with with other chromosome.
Explanation:
To understand and be and be able to solve or tackle this question effectively, there is need to know the meaning of the important terms in this question/problem.
- Robertsonian translocation: The term "Robertsonian translocation" simply refer to some kind of disorder in the chromosome in which a different kind of chromosome attach itself to another kind of chromosome, that is to say we have more than two fusion of chromosome that are different on chromosome 13, 14,15,21 and 22.
- Patau syndrome: The syndrome known as " Patau syndrome" is also refer to as Trisomy 13. The syndrome is a kind of abnormalities on the 13th chromosome known as chromosome 13. Patau syndrome patient will have more than two[usually three] kinds of chromosome.
"An individual who is heterozygous for rob(13;14) is at increased risk for having a child affected by Patau syndrome. " is TRUE
A defect in chromosome 13, that is to say the Robertsonian translocation on the 13th chromosome is what causes Patau syndrome. The Robertsonian translocation occurs by addition and subtraction of chromosomes, when there is addition on chromosome 13 or say the rearrangement of chromosome-13 with other chromosome, then, the individual's offspring has the tendency of developing Patau Syndrome.
Identify events that contribute to the termination of a response in the GPCR, or 7TM receptor, pathway. Select all that apply.
Answer:
Multiple choices:
1. G? dissociates from the G?? subunits.
2. The ligand dissociates from the receptor, which resumes its inactive conformation.
3. The receptor is inactivated by phosphorylation of Ser or other residues on its intracellular domain.
4. G? releases GDP and binds GTP.
5. G? hydrolyzes GTP to GDP and Pi.
Answers
The ligand dissociates from the receptor, which resumes its inactive conformation
The receptor is inactivated by phosphorylation of Ser or other residues on its intracellular domain
G? hydrolyzes GTP to GDP and Pi
Explanation:
The GPCRs known in full as G protein-coupled receptors are viewed by many as the largest group of membrane proteins that are found in human genome. They share a common architecture. The seven-transmembrane (7TM) receptors are mostly used interchangeably with the GPCRs even though there are known receptors that have seven membrane domains and do not just signal through the G proteins.
A colourless, odourless, tasteless, gas that is the most common element in the atmosphere.
a. nitrogen
b. phosphorus
c. carbon
d. oxygen
Answer:
Nitrogen
Explanation:
Answer:
its a for what i know hope this helps
DNA libraries are useful for identifying and isolating eukaryotic DNA fragments of interest in research. Select the ways in which genomic and cDNA libraries differ.
a. Genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism.
b. cDNA libraries contain only the sequences from genes that are expressed in an organism.
c. cDNA libraries are the DNA fragment collections that are stored and propagated in host cells through cloning.
d. cDNA libraries contain more sequence information than genomic libraries.
The ways in which genomic and cDNA libraries differ is that the Genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism. Thus, the correct option for this question is A.
What do you mean by Genomic libraries?Genomic libraries may be defined as a group of overlapping segments of genomic DNA that is significantly cloned into a backbone vector, which statistically includes all regions of the genome of an organism efficiently in order to function normally.
On contrary, cDNA libraries may be characterized as the collection of cloned DNA sequences that are complementary to the mRNA and were remarkably extracted from an organism or tissue in order to stimulate its function.
Therefore, genomic libraries are difficult to express in prokaryotic cells, which lack a splicing mechanism is one of the ways in which genomic and cDNA libraries differ.
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The water cycle describes how water moves through the earth's crust atmosphere and
oceans. Heat from the Sun causes liquid water to evaporate from rivers, lakes and oceans
and it becomes a gas called water vapour.. As the gas rises, it condenses and
to create droplets.
Water returns to the ground as solid hail and snow or liquid rain and sinks into the earth.
Below the ground it forms
where water is held between grains in rock
layers, and
Where aquifers intersect or cut the surface of the ground
the liquid water flows out to form
and
Differences in
elements, such as oxygen, can be used to estimate the and
of
water. A process is an event or series of events that cause a change to occur.
Answer:
nose picks
Explanation:
lol
Answer:
see the answer above
Explanation:
in order to release energy through aerobic processes like cellular respiration, cells need to have access to which of the following gasses?
A
Nitrogen
B
Water vapor
C
Carbon Dioxide
D
Oxygen
What conclusions can you make
about who might have been at the
scene of Anna's death? Explain.
Which of the following statements is NOT true regarding the nebular hypothesis?
Question 1 options:
A) A large cloud of hydrogen gas and dust begins to collapse under its own gravity.
B) The collapsing cloud begins to spin.
C) The spinning, collapsing cloud expands into a ball.
D) As the material coalesces in the center, it becomes dense, compresses, and heats up.
A
A large cloud of hydrogen gas and dust begins to collapse under its own gravity.
The incorrect option is "a large cloud of hydrogen gas and dust begins to collapse under its own gravity"
What is the nebular hypothesis?The most widely accepted theory in cosmogony to explain how the Solar System formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the Sun are what created the Solar System. The nebular theory proposes that a rotating cloud of material called a nebula, composed primarily of light components, flattened into a protoplanetary disk and developed into a solar system made up of a star and circling planets.Immanuel Kant developed the hypothesis.In 1900, Chamberlain and Moultan hypothesized that a wandering star's approach to the sun caused a cigar-shaped extension to separate from the solar surface.Learn more about the nebular hypothesis here:
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