Vitamin D help to regulate blood calcium levels.
What is Vitamin D?Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D₂. .
It help to absorb calcium and potassium in the body.
Therefore, Vitamin D help to regulate blood calcium levels
In the film, Paine recalls that a year after the starfish had been removed, the number of species decreased from 15 to eight, after three years the number went down to seven, and after another seven years it was almost all only mussels. In the control plots, the number and diversity of species were basically unchanged. Which statement(s) best explain(s) these results?
a. Keystone species are critical to the diversity and stability of an ecosystem.
b.When a predator is removed, the prey of that predator always increases, and species not eaten by the predator always decrease.
c. The disappearance of producers from an ecosystem can cause the number of predators to increase
Answer:
please can you short the question , because I don't understand it
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.
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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
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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
What is a result of preventing spindle fibers from forming?.
A ____________ uses direct elimination of acids, bases, or carbon dioxide from the body in order to adjust systemic acidity.
Answer:
Physiological Buffer
Explanation:
Definition of pandemic
In the process of ————. DNA is used as a template for making another type of Nucleic acid?
Answer:
transcription, RNA
Explanation:
the remaining 16 elements must be?
answer explanation:
All group 16 elements combine with hydrogen to form hydrides. Acidic nature and bent shape decrease from water. The H-E bond length increases as the bond dissociation enthalpy decrease down the group. Thermal stability and reducing character also decreases because the H-E bond length increases down the group.
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.
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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.
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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
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:
When pigs reproduce, which two types of cells pass on information from the pigs to the piglets?
Answer:
nuclei
Explanation:
Nuclei male and nuclei female to create a zygote
The two type of cells that pass on information from the pigs to the piglet is the male and female reproductive cells.
What is male and female reproductive cell?The male and female reproductive cell contains information about the parents that are passed on to the offspring.
The piglet inherit some genes from both parents through their cells.
Therefore, The two type of cells that pass on information from the pigs to the piglet is the male and female reproductive cells.
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The science that deals with when diseases occur and how they are transmitted is called.
Answer:
epidemiology
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.
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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
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!
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.
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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.
Movement of phloem sap from a source to a sink ________.
Bulk flow refers to the movement of phloem sap from a source to a sink in plants.
What is Phloem?This is a vascular tissue found in plants which helps to transport and distribution of the organic nutrients derived from photosynthesis.
Bulk flow occur when these nutrients present in the phloem sap are moved from source to sink.
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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.
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Answer:
C/ Oils make up their own food
Explanation:
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
How the circulatory and respiratory systems work together to deliver oxygen to the body’s tissues
Answer:
The circulatory system circulates the blood to the whole body.
The respiratory system brings oxygen to the blood, and the circulatory system circulates the oxygenated blood to the cells.
Explanation:
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.
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Partial nitrate reduction results in the formation of.
Answer:
Partial nitrate reduction results in the formation of nitrite and water
Explanation:
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.
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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.
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Answer:
b
Explanation:
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what is one experinment that is realted to put cabbage water, baking soda, and vinegar experinment and explain why you chose that idea!
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.
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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
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Sensory transduction of light/dark information in the vertebrate retina is accomplished by.
Answer:
Rods and cones
Explanation:
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