Answer:
DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode. Shorter strands of DNA move more quickly through the gel than longer strands resulting in the fragments being arranged in order of size.
Explanation:
give Two differences between monocotylidon and dycotiledon.
Answer:
In the screenshot
Explanation:
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Sensory transduction of light/dark information in the vertebrate retina is accomplished by.
Answer:
Rods and cones
Explanation:
Quizlet
What is a result of preventing spindle fibers from forming?.
HELP ME ASAP!
what is one experinment that is realted to put cabbage water, baking soda, and vinegar experinment and explain why you chose that idea!
The science that deals with when diseases occur and how they are transmitted is called.
Answer:
epidemiology
Explanation:
how are volcanoes like windows to the inside of Earth
Answer:
They emit steam and volcanic gases, such as sulfur dioxide and carbon dioxide. Fumaroles create pathways for rising heat, volcanic gas, and magma. Openings stemming down into the pool of magma. Cracks and fumaroles act like a window so scientists can get a glimpse of the gases inside volcanoes.
Explanation:
Plants are able to engage in photosynthesis because they produce a chemical that can absorb sunlight to synthesize glucose. What is this chemical?.
Answer:
Chlorophyll
Explanation:
Plants engage in photosynthesis with the help of chlorophyll.
In the process : Carbon dioxide is used and oxigen is produced.
1.)ROVs have become quite valuable in which of the following areas of marine science?
recording changes in coastal ecosystems
documenting diverse sea life at the sunlight level
exploring the ocean floor, particularly the trenches
accompanying amateur scuba divers in remote areas
2.)Most marine science jobs that involve conducting research will require an advanced degree.
True
False
3.)It is very easy for a marine biologist to get a job working with large marine animals.
True
False
ROVs (remotely operated vehicles) have become quite valuable in exploring the ocean floor, particularly the trenches. Therefore, the correct statement is option C. The other two statements are true and false, respectively.
What are the uses of ROVs?ROVs are used in marine science to explore and gather data from areas that are too deep or dangerous for human divers to access. ROVs are of great importance in the ocean floor, particularly the trenches. These are type of vehicles which are controlled remotely and well equipped with cameras and sensors which gather information from the deep sea environment.
Marine science is a complex and interdisciplinary field that requires a strong foundation in scientific principles and research methodology. An advanced degree, such as a master's or doctorate degrees are required in this field because certain skills are used to conduct research in this field, such as ability to design and execute experiments, etc.
it is very difficult for a marine biologist to get a job because it involves working with large marine animals and are highly competitive jobs. Marine biologists involve various areas such as marine conservation, marine ecology, or marine biotechnology.
Therefore, ROVs (remotely operated vehicles) have become quite valuable in exploring the ocean floor, particularly the trenches and marine science jobs require an advanced degree and are difficult to get.
Learn more about the ROVs (remotely operated vehicles) here:
https://brainly.com/question/6369359
#SPJ3
Which of the following is the most likely flow of energy in an aquatic ecosystem? a. Phytoplankton → mammal → zooplankton → fish b. Phytoplankton → zooplankton → fish → mammal c. Zooplankton → phytoplankton → mammal → fish d. Mammal → fish → zooplankton → phytoplankton.
In this question, the correct order of flow of energy in an aquatic ecosystem is Phytoplankton → zooplankton → fish → mammal.
What do you mean by an Ecosystem?An environment may be defined as the complex of physical, chemical, and biotic factors (such as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival.
The flow of energy in an aquatic ecosystem depends on the phytoplankton which are known as the producers of an aquatic ecosystem.
Therefore, the correct order of flow of energy in an aquatic ecosystem is described above. Hence, the correct option is B.
To learn more about the Aquatic ecosystem, refer to the link:
https://brainly.com/question/842527
Answer:
b
Explanation:
What kind of reaction is used to release glucose units from glycogen?
Answer:
phosphorolysis
Explanation:
The enzyme glycogen phosphorylase catalyzes a reaction in
glycogen breakdown.
Glycogenesis is the reaction is used to release glucose units from glycogen.
What is end prouct of glycogen breakdown?Glucose phosphate-1 and glycogen residue are the end products.
In cytosol glycogen breakdown is carried out by two enzymes, glycogen phosphates ae the linear.
To learn more about the glucose refer link:
https://brainly.com/question/14762365
#SPJ4
HeLPPP
How can we stop carbon dioxide to the ocean to not affect pH levels?
Answer:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
Hope This Helps
Answer:
Carbon dioxide (chemical formula CO2) is a chemical compound occurring as an acidic colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas. The current concentration is about 0.04% (412 ppm) by volume, having risen from pre-industrial levels of 280 ppm.[9][10] Natural sources include volcanoes, forest fires, hot springs, and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, ice caps, glaciers, and seawater. It is present in deposits of petroleum and natural gas. Carbon dioxide has a sharp and acidic odor and generates the taste of soda water in the mouth,[11] but at normally encountered concentrations it is odorless.[1]
Explanation:
hope that helps
Which of the following best describes the part of the blood composition that forms clots around wounds to prevent blood loss? Plasma Platelets White blood cells Red blood cells
Answer:
Platelets
Explanation:
Platelets are small pieces of dead blood calls that clump together to form a netting also known as a scab. These scabs stop bleeding, preventing every wound from being fatal and allowing the body time to heal.
Small fragments of dead blood cells called platelets collect together to form a netting, also known as a scab. Because these scabs stop the bleeding, no cut becomes fatal, and the body has time to heal. Thus, option B is correct.
What role of Platelets in clots around wounds?Blood clotting is the main function of platelets, also known as thrombocytes. Compared to other blood cells, platelets are significantly smaller.
In order to stop bleeding, they congregate to create clumps or plugs in the hole of a vessel.After the wound has healed, your body will often spontaneously dissolve the blood clot.
Therefore, As soon as the vessel's margins are broken, platelets start to stick to them and release chemicals that draw in additional platelets. External bleeding stops as soon as a platelet plug forms.
Learn more about Platelets here:
https://brainly.com/question/11333832
#SPJ2
Explain a chromosome deletion and the effects it can have on the body
The __________ is responsible for cellular respiration They use _________ to breakdown __________ to create energy.
Explanation:
the mitochondria is responsible for cellular respiration. They use food molecules to breakdown Glucose to create energy
Which type of nutrient functions primarily as an energy source for cells?.
Answer:
The answer is Carbohydrates.
Explanation:
They are one of the most important nutrient.
-Justin:)
How many letters does the eye normally take in at each fixation point before moving on to the next fixation point?.
Answer:
three to four letters to the left before it jumps over to the next fixation point.
Explanation:
The eye usually takes about seven to eight letters fixation to the right and around four to five letters fixation to the left before it moves to the next point of fixation.
What is the role of cells in vision?Two types of specialized cells are found in the eye for vision. These are named as rods and cones. These cells are called as photoreceptors as they are sensitive to light and thus functions in response to light.
Rod cells function in response to dim light and thus are active during the night time whereas cone cells impart colour vision.
These photoreceptor cells detect the light and convert them into electrical signals. Such electric signals travel to the brain from the retina through optic nerve. Brain thus helps in the perception of objects.
Defects in the rod cells leads to night blindness. It is also due to the deficiency for vitamin A which is pre-requisite for the activation of rod cells. Colour blindness (inability to distinguish between primary colours) can result if the cone cells are damaged.
Thus, photoreceptors cells are important in vision and image formation.
Learn more about photoreceptors, here:
https://brainly.com/question/19631679
#SPJ2
What are clastic rocks formed from?
A. fragments of minerals or rocks
B. heat and pressure applied to an existing rock
C. mineral grains that precipitate by evaporation or another type of chemical event
D. the remains of animals and plants
Which argument is BEST supported by the information given?
A
The earthworm and lizard evolved at the same time because of the absence of legs and hair
B
The lizard and humans share a common ancestor because of the presence of a backbone and legs.
С
The trout and humans share a common ancestor because of the presence of a backbone.
D
Earthworms were the most recent to evolve because of the absence of the derived characteristics
The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
What is Evolution?Evolution refer to the change or variation in in the characteristics of organisms over several generations and this depends on the process of natural selection.
some Organisms evolved from the same ancestors and they share some similarities in characteristics like hair, legs.
Humans and lizards evolve from same ancestors of over 320 million years ago.
Therefore, The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
Learn more about evolution from the link below.
https://brainly.com/question/12271572
A ____________ uses direct elimination of acids, bases, or carbon dioxide from the body in order to adjust systemic acidity.
Answer:
Physiological Buffer
Explanation:
Which of these BEST
describes the DNA
antiparallel double
helix?
A. BOTH strands run ONLY in the
3' to 5' direction.
B. BOTH strands run in random
directions.
C. ONE strand runs in the 5' to 3'
direction, and the other strand
runs in the 3' to 5' direction.
one strand runs in the 5' to 3' direction, and the other strand runs in the 3' to 5' direction.
How is DNA helix antiparallel?The strands of a DNA double helix are said to be "antiparallel" because the have the same chemical structure, but are opposite in direction.
What does it mean that the DNA double helix is antiparallel?Antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).
Hence, C is correct option
To learn more about DNA helix , here
https://brainly.com/question/27057990?referrer=searchResults
#SPJ2
How is a high rate of reproduction beneficial to a species?(1 point) It prevents extinction because there are so many individuals.
It prevents extinction because there are so many individuals.
It ensures that at least a few individuals will survive to pass on their traits.
It improves fitness over time versus species with slower rates of reproduction. I
It leads to faster evolution and passing on of traits. It leads to faster evolution and passing on of traits.
High rate of reproduction is beneficial to a species because it ensures that at least a few individuals will survive to pass on their traits.
What is reproduction?Reproduction is the biological process whereby living organisms replicate themselves by producing offsprings.
High rate of reproduction means that organisms produce excessive number of offsprings.
Therefore, high rate of reproduction among organisms is beneficial to a species because it ensures that at least a few individuals will survive to pass on their traits.
Learn more about reproduction at: https://brainly.com/question/7464705
Differential Reproduction Quick Check:
1. (D) resource partitioning
2. (D) competitive exclusion
3. (D) A population of deer show
4. (C) elephants are being born
5. (A) it ensures that at least a few
---
Hope this helps! :)
Which change in dna will cause a heritable germline mutation.
The answer will be :
Paternal exposure to high level of radioactive
it causes heritable germline minisatellite mutation.
Which of these best matches an object in space with its characteristic?
A ganymede → orbits the sun
B inner planet → gaseous in composition
C outer planet → many moons
D meteorite → comet which hits Earth's surface
In this question we will match an object in space with its characteristic
A ganymede → orbits jupiter
B inner planet → many moons
C outer planet → gaseous in composition
D meteorite → comet that hits the Earth's surface
What are the characteristics of Ganymede?Ganymede is the largest moon of Jupiter and is the largest in our solar system.
What is an inner planet?The inner planets, closest to the Sun, are solid rock spheres and include Mercury, Venus, Earth, and Mars.
What is an outer planet?Designation of planets less dense than Earth, with a large amount of gaseous substances, mainly hydrogen, helium, methane and ammonia
What are meteorites?Meteorites are fragments of solid matter that come from space and reach the Earth's surface.
Learn more about Ganymede in brainly.com/question/13046823
Answer:
ganymede → orbits jupiter
Explanation:
Ganymede, a satellite (moon) of Jupiter, is the largest and most massive of the Solar System's moons.
3.
Which statement is true about oils?
Oils do not contain important nutrients.
Healthy oils are high in saturated fats.
Oils make up their own food group.
Oils are one of the main sources of certain fats.
The statement that is true about oils is that Oils make up their own food group.
What is oil?.Oil refer to a nonpolar chemical liquid that is comprises of hydrocarbons and is both hydrophobic and lipophilic. Oils are flammable and surface active. Most oils are unsaturated lipids and oils are liquid at room temperature.
Therefore, Oils make up their own food group is true about oils because it is part of the six classes of food.
Learn more about oil here.
https://brainly.com/question/25614315
Answer:
C/ Oils make up their own food
Explanation:
Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
Answer:
Esophagus
Explanation:
In the digestion and absorption of food, the esophagus is the least involved.
It is a part of the digestive system, but all it does is simply pass the food down to the stomach.
The one that is least involved in the mechanical breakdown of food, digestion, or absorption is esophagus. The correct option is d.
Even though it is a vital component of the digestive system, the esophagus plays a much smaller role in the mechanical digestion of food than the other alternatives.
A muscular tube called the esophagus moves food from the mouth to the stomach by a process known as peristalsis, which calls for repetitive muscle contractions.
Its main job is to push food down the digestive tract so that it can travel more easily. Food is mostly mechanically broken down in the mouth while being chewed by the teeth and in the stomach while being churned by muscles.
The majority of digestion and nutrient absorption occurs in the small intestine.
Thus, the correct option is d.
For more details regarding esophagus, visit:
https://brainly.com/question/30855952
#SPJ4
Your question seems incomplete, the probable complete question is:
Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
a) Stomach
b) Teeth
c) Small intestine
d) Esophagus
can you tell for certain if eleanor is a definite carrier for methemoglobinemia
The information about the genotype of Eleanor is not found here, but a carrier is a heterozygous individual.
What is a carrier?A carrier is an individual who is heterozygous for a given genetic condition and/or genetic mutation.
A heterozygous is an individual who has two different alleles or gene variants for a particular gene locus.
A homo-zygous is an individual who has the same allele (or gene variant) for a given gene locus.
Learn more about heterozygous individuals here:
https://brainly.com/question/3676361
researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a gametophyte generation, but lacks seeds. How should the researcher classify the plant?
pteridophyte
Explanation:As you might guess, Pteridophyte are plants that can move through the air. They do not make new plants by releasing seeds.
Other pteridophyte characteristics include the following:
They exhibit alternation of generations, in which the sporophyte and gametophyte generations are observed.Sporophytes are plants with true roots, stems, and leaves.Sporangia grow in clusters on sporophylls.I hope this helps you
:)
EXPLAIN WHY SMALL MAMMALS SUCH AS MOLES FEED MORE FREQUENTLY THAN LARGER ONES SUCH AS ELEPHANT0
Answer: Small mammals have large surface area to volume ratio hence lose heat quickly to environment; to replace the heat, lost, their metabolism is high making them to feed more frequently.
Explanation:
Hope this helps!
Definition of pandemic
Partial nitrate reduction results in the formation of.
Answer:
Partial nitrate reduction results in the formation of nitrite and water
Explanation: