Answer:
Point-source pollutants.
Explanation:
Point-source pollutants are emitted from single identifiable sources. For instance, untreated waste water from a particular oil refinery or factory is a point-source pollutant.
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.
Which two activities provide the reactants for cellular respiration
Answer:
The Reactants
Explanation:
Oxygen and Glucose are both reactants of cellular respiration.Oxygen enters the body when an organism breathes.Glucose enters the body when an organism eats.
Answer:
D-breathing in air and eating food
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
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
ecology succession biology succession
Answer:
There are two types of succession.
Primary Succession - A bare mass of rock developing an ecosystem from scratch. It will use lichens and moss to create soil... a good example of this is a new land mass formed by a volcano.
Secondary Succession - A environment and ecosystem that was destroyed but does not need to start from scratch. It just needs the plants to regrow and attract wildlife back again... a good example of this is a forest destroyed by a wildfire.
Explanation:
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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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:
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Answer:
.
Explanation:
.
What is a visual model used to measure the average amount of dietary intake of a black bear.
Answer:
Shaggy black fur and large size distinguish this animal from all other Adirondack mammals. The black bear has a short, inconspicuous tail. The body and legs are short. The head is broad with erect, rounded ears. The muzzle, grizzled with brown, is long and narrow. The eyes are small and dark. Both front and hind feet have five toes, each with a large claw. A white blaze is often present on the throat or chest. Color phases occur but are uncommon in eastern populations. Adults are approximately 50 -78 inches in length. Average-sized adult males weigh 300 lbs. and females 150 lbs.
Explanation:
What crops are typically genetically modified?
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.
When is lactic acid produced
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.
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 :)
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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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:
The hypothalamus controls excretions from the pituitary gland. It causes the release of some hormones from the pituitary by direct nervous control, and others by secreting releasing and inhibiting factors that stimulate the pituitary to secrete hormones. Which best describes the hypothalamus?
Answer:
It causes the release of some hormones from the pituitary,,,,
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.
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).
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.
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Which kingdom is composed of multicellular autotrophs?
Answer:
Plantae kingdom
Explanation:
Plantae kingdom
Plants. The Plant or Plantae kingdom encompasses all flowering plants, mosses and ferns. Plants are multi-celled, complex organisms and are considered Autotrophic.
The kingdom would be plant
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
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.
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:
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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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.
the earths crust is
1. heavier
2.softer
3.thicker
4.thinner
Answer:
The Earth's crust is thicker
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
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Fill in the blanks with the correct word or phrase
The process of change in a population overtime is called --------------
The process by which organisms that are better adapted to the environment survive and reproduce is called --------------------
Answer: Microevolution.
Explanation: Microevolution is the change in allele frequencies that occurs over time within a population..
Can someone help me in biology really quick because I need the help ASAP
Answer:
wheres the question?
Explanation:
Answer: Type A
Explanation: