Options are not provided in the question. The complete question is:
You need to refuel your PWC. When should you check for gas fumes?
A. before fueling
B. while fueling
C. after fueling and before starting the engine
D. after fueling and restarting the engine
Answer:
C. after fueling and before starting the engine
Explanation:
A personal watercraft (PWC) is popularly known as jet skis or water scooter which run over water as its name suggest and ride by a rider who either sits or stands on the PWC rather than sitting inside of.
PWC run on unleaded gasoline and premium gasoline. Gas fumes in PWC is required to check after fueling and before starting the engine because if the tank will overfilled, fuel can expand into the water or leakage can cause explosion as well. After fueling and just before staring the engine it is must to check for evidence of gas fumes and one is smelling gas fumes, the source need to repair immediately.
Hence, the correct option is C.
a cell is taken from an environment that has a high salt concentration and is placed into an environment that does not contain any salt. what effect will the change in the environment have on the cell?
Answer:The cell will become swollen and turgid
Explanation:Salt water draws water out of a cell dilute water is absorbed into the cell... Both by osmosis
Can someone help me in biology really quick because I need the help ASAP
Answer:
wheres the question?
Explanation:
Answer: Type A
Explanation:
The passage of the end products of digestion into the cells of an organism is an example of
Answer:
Option A, Absorption
Explanation:
Complete question -
The passage of the end products of digestion into the cells of an organism is an example
a) absorption
b) digestion
c) circulation
d) regulation
Solution -
Nutrient absorption occur in the small intestinal mucosa because it has large surface area as compared to the surface area of stomach. These nutrients are absorbed by the guts so that it is then released into the blood stream. The blood stream carries the nutrient along with it and transport it to the brain, organs and other parts of the body as per their requirement.
Thus, option A is correct
Things like your eye color and height are not under your control. This is because they are determined by your gen
So, eye color is a good example of an inherited
Answer:
Gene
Explanation: That was way to easy, are you sure that's the right question?
Answer:
Eye color is a good example of an inherited gene.
Which organism fix nitrogen in the soil ?
Answer:
Diazotrophs
Explanation:
The nitrogen-fixing bacteria and other micro organisms that fix nitrogen are collectively called 'Diazotrophs'. There are many strains of these bacteria in soil, which perform this function. They are important agents in the 'Nitrogen Cycle'.
There are two main groups of organisms that fix nitrogen in the soil: diazotrophs and cyanobacteria.
What are these organisms?Diazotrophics are bacteria that can convert atmospheric nitrogen into ammonia, which is a form of nitrogen that plants can use. Some examples of diazotrophs include Rhizobium, which is found in the root nodules of legumes, and Azotobacter, which is a free-living bacterium.
Cyanobacteria are photosynthetic bacteria that can also fix nitrogen. They are found in aquatic and terrestrial environments, and they can play an important role in the nitrogen cycle.
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Fossil evidence shows that vertebrates made the transition from water to land during the period.
Answer:
Devonian period
Explanation:
The currently available fossil evidence showed that vertebrates made the transition from water to land during the Devonian period. Specifically, the migration happened in the late Devonian period.
One of the features that enabled migration from water to land is the development of legs as against fins. While the latter is useful for movement in water, the former is necessary for locomotion on land.
In the late Devonian period, the first group of vertebrates with legs emerged. The tetrapods or four-legged vertebrates were known to have emerged about 330 million years ago and consist of the amphibians, reptiles, and mammals.
Maintaining fish populations preserves the ocean as a resource and is
fundamental to protecting biodiversity."
Answer: True
Explanation:
The marine environment is associated with both biodiversity health and quality of water. The overfishing will not only harm the desired aquatic species but can also kill undesirable fishes and plant species which are removed from their habitat during the fishing process. The some fish species eat up the pollutants in water and sea debris making the environment clean and healthy for other aquatic species. Thus maintaining the fish population will preserve the aquatic environment.
What two habitats lack trees shrubs and liquid water
Answer:
B
Explanation:
Answer:
The answer I'd say is B.
Explanation:
The desert is too hot for liquid water or any trees and shrubs
What benefit did the invasive species called Japanese white eye bring to the ie ie vine?
Answer:
Pollination of plants
Explanation:
This species of birds is thought to help in preserving and conserving the native plant species of Hawaii by helping in dispersing their seeds. They are the main pollinators of the ieie vine. These was a role that was once performed by the long extinct Hawaii native bird species (they became extinct due to the invasion of these Japanese white eye).
Answer: It helped in pollination.
Explanation: edmentum/plato
The invasive species called Japanese white eye was beneficial to native vine pollination.
Which consumer you think is a herbivore (eats plants only)?
Answer:primary consumers for ex sheep cows, etc...
Explanation:
These animals are consumers, don’t produce their own food, but get it only from the producers, like plants
When is lactic acid produced
When you have me you feel like sharing me but if you do share me you don’t have me what am I
Answer:
A secret. When you have a secret, you want to tell other people, but when you do, it's no longer a secret.
Answer:
A secret
Explanation:
When you have a secret, you want to tell other people, but when you do, it's no longer a secret. Hope this helped :)
Describe the shape of the earths orbit around the sun
Earth's orbit is not a perfect circle. It is elliptical, or slightly oval-shaped. This means there is one point in the orbit where Earth is closest to the Sun, and another where Earth is farthest from the Sun.
pls mark pls pls pls
A scientist finds a snail fossil in a layer of rock in a desert which action would help the scientist determine what the environmental conditions may have been when the snail existed?
Answer:
you can suppose from that statement alone that the snail lived in. climate that was humid, wet and full of life in the past. you can also see the stratus of rock layers fo determine how long it could have been, and use carbon dating as a sure way to get the dating and time period correctly.
What is true about the
sperm cells of
flowering plants?
1. They are called
pollen grains.
2. They are inside
pollen grains.
3. They are inside the
seed.
Answer:2
Explanation: Sperm cells in plants are found inside the pollen grain. When the pollen grains fall on the stigma, the pollen raptures and forms a pollen tube then the sperm cells pass through the pollen tube to the ovary.
What does respiration mean in biological terms?
Answer: Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).
Explanation:
What occurs during G1 and G2 in the cell cycle?
A) synthesis of the cell
B) growth of DNA
C) growth of the cell
Answer:
growth of the cell
Explanation:
Answer:
C. growth of the cell
Explanation:
The G stands for growth of the cell.
Interphase is composed of G1 phase (growth of the cell), followed by S phase (DNA synthesis), followed by G2 phase (growth of the cell).
what is food , and the six classes of food
Answer:
Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.
Explanation:
The food groups are divided based on the nutritional properties they offer. Foods that animals eat can be classified based on the amount of nutrients and the type of nutrients they provide for subsistence and survival. It is highly recommended to eat portions of food from the different groups in order to live a healthy lifestyle. This will provide you with a complete set of nutrients for better health.
There are seven major classes of nutrients and they are
carbohydrates
fibre
fats
protein
minerals
vitamins
water
These nutrient classes can be classified either into macronutrients or nutrients that are needed in large quantities and micronutrients or nutrients that are needed in small amount. Macronutrients include the carbohydrates, proteins, fats, fibre, and water while the micronutrients include vitamins and minerals.
Macronutrients provide the body with energy. Water and fibre are exempted. The energy is measures in terms of kilocalories or joules. Kilocalories are written as C in order to differentiate them with gram calories. For every gram of carbohydrate, seventeen kilo joules or four kilo calories are provided for your body. Fats provide your body with thirty seven kilo joules or nine kilo calories for every gram. Vitamins, fibre, minerals, and water do not provide the body with energy but they are needed for other purposes.
Carbohydrate molecules are made up of carbon, oxygen, and hydrogen atoms. Monosaccharides like glucose, fructose, and galactose are types of carbohydrates. An example of a complex carbohydrate is starch. Fats are made up of the same kinds of atoms as carbohydrates. They are made of triglycerides or fatty acid monomers that bind to glycerol.
Protein molecules are made up of nitrogen atoms plus carbon, oxygen, and hydrogen. These nitrogen monomers are essential amino acids needed by the body. They perform functions that are essential in metabolism. They are used for energy and fuel for the body. Antioxidants and phytochemicals are other micronutrients that are essential to the body.
Most of the foods that you consume are made up of several of the classes of nutrients. Some of the nutrients are needed by the body all the time while the others are needed once in awhile. People’s health deteriorates because of the imbalance of nutrients. There can be too much of a nutrient or a deficiency in it.
One type of muscular dystrophy, Duchenne muscular dystrophy, is is an inherited condition that usually only affects boys. Muscle weakness is noticed as children begin to walk or run. Characteristic signs include walking on tiptoe and large calves. The disease occurs in one out of every 3000 newborn male children. Why is this disease limited to mostly boys?
Answer:
Explanation:
Duchenne muscular dystrophy acts as a X-linked recessive disease. Which means the gene sits on the X chromosome, and you need two bad copies to show disease (for females) and one bad copy (to show in males).
Now from our knowledge, we know males are XY and females are XX. Males have only one copy of the X chromosome from their mother and one copy of the Y chromosome from their father, thus if they get the mutated version of the gene that causes this disease, they will get the disease. However, if a female has a mutated version of gene on one of the X chromosome, the other X chromosome could have a normal gene and that normal gene would take over and produce a normal phenotype/function.
Since, boys only have one X chromosome, if they get the mutated gene they will get the disease, whereas females have two X chromosome (so even if one copy is bad and the other is good, the good version can take over, however boys don't have this) thus mostly male children are affected by this.
What crops are typically genetically modified?
Which type of connective tissue has the most fibers?
A) Loose connective tissue
B) Fibrous connective tissue
C) Cartilage
D) Bone
Answer:
a loose connective tissues
Explaanation:
Option B) Fibrous connective tissue is a type of connective tissue that has the most fibers among all.
Connective tissue is a tissue that not just supports, and protects, but also provides structure to other tissues and organs of an organism's body. There are four classes of connective tissues:
Loose connective tissue - contains few fibers with parts of ground substances Fibrous connective tissue - has the most abundant fibers. Cartilage - matrix has a large number of fibers with few elastic and collagen fibers. Bone - some amount of fibers present in the matrix of the bones.Fibrous connective tissue or dense connective tissues has most fibers as it is made up of bundles of collagen fibers present parallel. These are present in tendons, ligaments, and dermis.
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it is biology ?!!iiii
Answer:
.
Explanation:
.
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Answer:
I think it would be some stones are harder or it maybe just it has just crystallized.
Explanation:
Answer:
Quartz is the hardest mineral of the minerals on the table.
Explanation:
Since a scratch was produced with Chalcopyrite, Pyrite and Orthoclase but not on Quartz, clearly Quartz was the hardest mineral of the minerals that were tested. To prove this, we can search up the hardness of each mineral. Quartz on the hardness scale is 7, Orthoclase on the scale is 6, Pyrite is 6 and Chalcopyrite is 4. Quartz being the highest at 7 is the hardest of the minerals
9x - 14y + 9 + 13y
Answer:
9x−y+9
Explanation:
I used a calculator
Answer:
Explanation:
First you must put all the like terms together. So 9 can be at the front since it is the only one that is without a letter. The you must put the ys and xs together. It should now look a bit like 9-14y+13y+9x. I think you are able to work it out from there. If not please contact me again
While examining a layer of rock, a scientist found a fossil of a trilobite like the one shown below. The scientist knows that trilobites only lived during the Paleozoic era.
The scientist finds fossilized remains of other species in the same rock layer as the trilobite. What can the scientist conclude about these other fossils?
A.
The organisms that formed them must have evolved from trilobites.
B.
The organisms that formed them are still living in modern times.
C.
The organisms that formed them likely also lived during the Paleozoic era.
D.
The organisms that formed them likely went extinct before the Paleozoic era.
Answer:
C. The organisms that formed them likely also lived during the Paleozoic era.
Explanation:
The organism which was found by the scientist in the same rock layer indicates that the organism was present in the same Paleozoic era where trilobites were present because both organisms found in the same rock layer. Paleozoic era was present 542 million years ago and ended into 251 million years ago. At that time, great change occurs on the Earth. In this era, plants were spreading across the earth surface and first vertebrates species start colonized.
Many people believe that diet soda is healthier than regular soda because it contains less sugar and fewer calories. However, several scientific studies have found that diet soda may be associated with diabetes, weight gain, and heart disease. In fact, those who drink one diet soda per day have an increased risk of heart attack and stroke compared to those who do not drink diet soda each day or at all. What claim is being made? Diet soda is healthier than regular soda. Diet soda tastes better than regular soda. Diet soda may increase the risk of disease. Diet soda may contain more calories than regular soda.
Answer:
C i got it right;)Explanation:
Do not drink diet soda each day or at all. What claim is being made Because, Diet soda may increase the risk of disease.
Is diet soda healthier than regular soda?Despite it being a lower or zero calorie drink , it may still theraise risk of situation such as diabetes and obesity.
Diet soda shows no fitness uses other than serving as a tool that people can use to wean themselves off regular soda.
Thus, option "C" is correct, Diet soda may increase the risk of disease.
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the process of retting softens the tissue and helps to separate the fibres true or false
Answer:
True
Explanation:
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Answer: True
Explanation:
the process of retting softens the tissue and helps to separate the fibres.
Plan an investigation to determine which part of the oregano plant has the highest concentration of chemicals with antimicrobial properties
Answer:
The study reported here presents a comparative screening of three medicinal plants including oregano (Origanum vulgare L.), lavender (Lavandula angustifolia) and lemon balm (Melissa officinalis) having the same geographical origin, the Southeast region of Romania, and growing in the same natural conditions. The contents of total phenolics and total flavonoids for the extracts of these were determined. Furthermore, the total antioxidant capacity was also evaluated. It was found that Origanum vulgare and Melissa officinalis extracts present the most effective antioxidant capacity in scavenging DPPH radicals, while Lavandula angustifolia is less active. High performance liquid chromatography-mass spectrometry analysis was used to identify the components of extracts. Major phenolic acids identified in the analysed species were ferulic, rosmarinic, p-coumaric and caffeic, while predominant flavonoids were quercetin, apigenin kaempherol, which were present as glucosides.
Explanation:
Although we rely on coal, oil, and natural gas to produce energy, some environmental scientists have proposed that we use less fossil fuel. One reason to support this proposal is to
Answer:
B
Explanation:
Which of the following statements is incorrect?
1. The tracheal mucosa consists of pseudostratified ciliated columnar epithelium.
2 .The trachealis muscle and elastic connective tissue allow for changes in the diameter of the trachea.
3. The trachea is located posterior to the esophagus and extends from the larynx to the superior border of the fifth thoracic vertebra.
4. The trachea has incomplete hyaline cartilage rings.
Answer:
The trachea is located posterior to the esophagus and extends from the larynx to the superior border of the fifth thoracic vertebra.
Explanation:
This is a wrong statement. Anatomically ,this organ of upper respiratory system is located anterior to the oesophagus.Thus it is the oesophagus that is located posterior to the trachea.
It passes through the posterior mediastanium to branch into the left and right main bronchi.
it bends towards it ends to the right,which results in the crossing of the left main bronchus anteriorly to the oesophagus.
It is lined by mucus gland produced by pseudo stratified columnar cells and some ciliated and non ciliated cells.
The mucus helps in warming up inhaled air and filtration of the air of dust particles.