Answer:
A
Explanation:
The correct answer would be that Watson and Crick's structure of DNA was not done until 1953.
The fact that chromosomes are condensed together in the nucleus, are not distinguishable during interphase, and a method had not yet been devised to halt mitosis at metaphase could have plausibly delayed the successful counting of human chromosomes.
On the other hand, the discovery of the structure of the DNA could not have delayed the study of chromosomes because the DNA structure has no bearing on the karyotyping of chromosomes.
The chromosomes of organisms are best studied using a relevant microscope during metaphase when they would have fully decondensed and align at the equator of the cell or the metaphase plate. At the interphase phase of the cell cycle, chromosomes are full condensed under the view of the microscope.
The correct option is, therefore, A.
(I will give a Brainliest) Can liquid water and steam exist at 100°C?
Answer: yes it can!
Explanation: hope you get a good grade!
How does gradualism explain the evolution of different species?
New species appear as a result of small changes over a long period of time
New species appear as a result of small changes over a short period of time
New species appear as a result of big changes in a short period of time
New species appear as a result of big changes over a short period of time
Please please helpppp!!!
Answer: New species appear as a result of big changes over a short period of time
Explanation:
PLEASE HELP ASAP (; question in photo
Answer:
im like 99% sure its D
Explanation:
im sorry if its wrong :(
6. In general, as both the force and velocity of impact increase, what happens to the diameter of
the resulting blood droplets?
Answer: depending on viscosity, mass and velocity of impact, if droplet integrity is maintained, as velocity increases, diameter will increase from
Approximately d*sqrt(2) to 2*sqrt(d^3/6a) where d is original diameter and a is thickness when the droplet flattens into a disc.
Explanation:
This applies generally to any liquid droplet, which by inference falls and impacts a solid surface. The impact force is mgh where m= mass, g= acceleration due to gravity, h= initial height.
A liquid droplet deforms on impact. Assume the drop is sperical, then the deformation distance, d= diameter of the droplet then the average impact force = mgh/d.
The droplet may spread, splash or bounce, depending on viscosity and force, which depends on mass and velocity immediately before impact.
All than can be said is that if the droplet maintains integrity it could achieve the shape of half a highly flattened oblate spheroid. Approximating this with a flattened disc of thickness a, and an original volume of 4/3pi(d/2)^3, the volume as a disc =a*pi*r^2 so the horizontal diameter = 2*sqrt(d^3/6a)
It is not really possible from the available data to determine whether the droplet would remain its integrity, but at sufficiently low force/velocity, the droplet could retain a near-hemispherical shape, giving a horizontal diameter of the hemisphere = d*sqrt(2)
As velocity increases, if integrity is maintained, the diameter will increase from the second approximation to the first
Desert plants and animals are adapted to the lack of what and high
Answer:
lack of water and high concentration of heat and dryness
Explanation:
Deserts don't get that much rainfall, so desert wildlife are adapted to survive in such a dry climate. Take the camel, for instance, it can store three bathtubs of water in it's hump, so it can go a very long time without water. And without that rainfall, the desert is dry and, usually, very hot. Animals have adapted to this by only coming out in the nighttime when it's cooler.
hope this helped:)
Which type of cell are found in the leaves of a tree?
O eukaryotic animal
O chloroplastic
O prokaryotic
O eukaryotic plant
Answer:
Palisade parenchyma cells
Explanation:
Palisade parenchyma cells are elogated cells located in many leaves just below the epidermal tissue. Spongy mesophyll cells occur below the one or two layers of palisade cells. Ray parenchyma cells occur in wood rays, the structures that transport materials laterally within a woody stem.
Answer:
eukaryotic plant
Explanation:Unit 2 Test: Cells
Which type of wave forms at the boundary between air and water in the open
ocean?
A. Surface
B. Longitudinal
C. Electromagnetic
D. Transverse
Answer:surface
Explanation:
Just believe me miss gorl
Answer:
surface waves form at the boundary where air and water meet in open ocean.
Explanation:
Just did the quiz.
Summarize how dead organisms become oil or natural gas (2-3 sentences)
Please do this for me? I will give brainliest when it pops up if you help me! x thx
Answer:
Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria. ... Millions of years ago, algae and plants lived in shallow seas
2. How is primary succession different from secondary
succession? Giveanexampleofaneventthat may lead primary
succession.
Answer:
Primary succession is basically the start of a brand new ecosystem. This is when pioneer species form and grow like lichens and some grasses. Secondary succession is when the ecosystem is already started and it's continuing to grow. During this time populations of other species begin to inhabit the ecosystem like shrubs and trees and some animals. Both of these processes take years to complete. An example of an event would be a volcanic eruption, and a wild fire.
Explanation:
Answer:
C. Volcanic Eruption
Explanation:
Just got it right on Edge 2023
Which atom is involved in giving your heart energy to beat?
O carbon
O gold
O oxygen
O iron
Answer:
Oxygen
Explanation:
-How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.
-The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.
Why are the digestive systems of birds, ruminants and humans different?
Answer:
Humans and many other animals have monogastric digestive systems with a single-chambered stomach. Birds have evolved a digestive system that includes a gizzard where the food is crushed into smaller pieces.
Explanation:
Answer:
The digestion process in Ruminants is completely different from humans.
This is because the digestion process in Ruminants begins by chewing and swallowing its food. The main diet for these animals includes grass, leaves and other parts of plants.
In sexual reproduction, a sperm cell fertilizes an egg to form a zygote
A. True
B. False
Answer:
binary fission
Explanation:
Natural selection may affect allele frequency in populations due to the fundamental forces of evolution except which of the
following?
O gene drive
O gene flow
O genetic drift
O mutation
Answer:
gene flow.
Explanation:
its right I think
4. How does temperature affect chemical weathering?
A. It is an agent of weathering.
B. It affects the amount of oxygen involved in weathering.
C. It affects the rate of weathering.
D. It affects the type of weathering.
Answer:
C.
Explanation:
It affects the rate of weathering.
uses of crush in the farm
Answer:
ok i dont understand what that is
Explanation:
1. Rhizobium has symbiotic association with
Answer:
any one got snap??
Explanation:
NaHC3 is an example of what
Answer: sodium bicarbonate
Answer:
Baking Soda (sodium Bicarbonate, NaHCO3) Is An Example Of A Base.
Explanation:
What would be the expected response to a skin injury if the involved tissue had lost the normal cell characteristic of contact inhibition
Answer:
uncontrolled excessive growth of cells in the tissue
Explanation:
Contact inhibition is a cellular mechanism where cell growth is arrested when adjacent cells are in contact with each other. Contact inhibition serves to arrest further cell growth beyond a monolayer, by limiting the migration and/or proliferation of cells in a tissue or organ. In consequence, contact inhibition is critical for normal cells to stop proliferating. When contact inhibition is disrupted, cells undergo uncontrolled growth, which leads to the development of cancer and tumor progression.
What is the main force of evolution?
Answer:
We have to evolve or we will just slowly die off.
Where does precipitation occur in the water cycle?
Answer:
i think precipitation mostly occurs in the clouds
What is and example of an molecule
Muscle tissue
Protein
Stomach
Unicellular organism
explain the process of digestion abd absorption of carbohydrates.
Explanation:
the food u eat will goes from oesophagus to ur stomach and then it is mixed by hcl present in your stomach that makes the medium acidic for pesin to digest protein and then bile juice from liver makes the medium alkaline and breaks the larger globules of carbohydrates for enzymes then the food goes goes to small intestine that secretes intestinal juice that converts carbohydrates into glucose
Energy of activation ________. a. is the energy required for molecules to react with each other b. requires the use of enzymes c. allows for feedback inhibition d. acts on the products of metabolic reactions
Answer:
a. is the energy required for molecules to react with each other
Explanation:
Activation energy may be defined as the extra energy required to start a reaction and the conversion of reactants into its products. It is the energy required to energize or activate molecules or atoms to undergo a transformation or a chemical reaction.
It is necessary for all types of chemical reaction to proceed. With the help of a catalyst the reaction rate increases as the energy of activation lower for the reaction to start.
A patient with chronic venous insufficiency comes to the doctor's office complaining of leg pain. The physician prescribes two thigh-length gradient compression stockings, 45 mmHg each. HCPCS code(s):______-
Answer:
What class is this?
Explanation:
(Also if you look it up on gooogle there is an answer.) cannot answer this for you though.
The correct HCPCS Level II codes for two below the knee gradient compression stockings, 18-30 mmHg each, are A6530 x 2.
The HCPCS Level II code A6530 is used to report gradient compression stockings, below knee, 18-30 mmHg, each. The code is divided into two parts: the first part identifies the type of stocking (gradient compression), and the second part identifies the location of the stocking (below knee). The mmHg value indicates the level of compression.
In this case, the patient was prescribed two below the knee gradient compression stockings, 18-30 mmHg each. This means that the physician ordered two stockings, each of which is designed to provide a compression level of 18-30 mmHg.
The correct HCPCS Level II code for this prescription is A6530 x 2. The "x 2" indicates that two stockings are being ordered.
To learn more about chronic venous insufficiency, here
https://brainly.com/question/31838050
#SPJ2
The complete question is:
A patient with chronic venous insufficiency came to the doctor’s office with complaints of bilateral leg pain. The physician prescribed two below the knee gradient compression stockings, 18-30 mmHg each. Assign the correct HCPCS Level II codes.
What condition is MOST likely to spread an illness between people
Answer:
What are the options?
Explanation:
If there will be changes on trophic levels, what will be the effects on the ecosystem?
Answer:
It can significantly alter the homeostasis of the ecosystem
Explanation:
The trophic level is the position that occupies a given organism/ population/species in the food web. In a food web, the trophic levels are organized into a first category (formed by primary producers, e.g., plants), a second level (primary consumers, e.g., herbivores), and subsequent categories (predators, e.g., carnivores). The abrupt change in the number of organisms belonging to the same trophic level generally has a negative effect on the ecosystem by modifying the trophic structure of communities. For example, decreasing the number of producers will produce a decrease in the number of primary consumers, thereby altering the homeostasis (equilibrium) of the entire ecosystem. On some occasions, it may eventually lead to the extinction of populations and species.
Long-term activation by nuclear receptors differs from the more transient membrane receptor signaling for what reason
Which method of food production is sustainable?
A. Planting only a single type of crop
B. Improving food storage facilities
c. Overusing antibiotics on livestock
D. Practicing intensive farming
Answer:
Improving food storage facilities
Geologists describe rocks by observing mineral composition and color, texture, and ______.
Answer:
I believe surface
Explanation:
what animal kingdoms were divided
Answer:
The scheme most often used currently divides all living organisms into five kingdoms: Monera (bacteria), Protista, Fungi, Plantae, and Animalia. This coexisted with a scheme dividing life into two main divisions: the Prokaryotae (bacteria, etc.) and the Eukaryotae (animals, plants, fungi, and protists).