Answer:
"principles of superposition"
Explanation:
3. In general, metals are ____.
a
poor conductors of heat
b
brittle
c
poor conductors of electricity
d
good conductors of heat
Answer:
D
Explanation:
Answer:
good conductors of heat
Explanation:
If albumen is broken down by a protease, what sort of chemical is albumen?
Albumin is broken down by the activity of protease enzyme, this enzyme is responsible for the digestion of proteins. Therefore, albumin is chemically protein in nature.
What is Albumin?
Albumin is a family of proteins. These are globular proteins in which the most common are the serum albumins. All the proteins of the albumin family are water-soluble and moderately soluble in concentrated salt solutions. This protein denatures on continuous heat treatment.
Albumins are commonly found in blood plasma. It differs from other blood proteins as they cannot be glycosylated. Substances which contains albumin proteins are called albuminoids.
A number of blood transport proteins are found to be evolutionarily related in the albumin family such as serum albumin, alpha-fetoprotein, vitamin D-binding protein and afamin. This family of proteins is only found in vertebrates.
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what invention allowed scientists to study cells for the first time?
17. In humans, pointed eyebrows are dominant over smooth
eyebrows. Angela's father has pointed eyebrows, but she
and her mother both have smooth eyebrows. What is her
father's genotype?
Answer:
BB or Bb
Explanation:
B= dominant genotype
b= recessive genotype
B always shows even if the genotype is Bb leaving either option as correct
A male from species A mates with a female from species B. Male A’s sperm swims and finds the egg, but the sperm is unable to penetrate the egg. This is an example of
Answer: Gametic isolation
Explanation:
Sperm of one species may not be able to fertilize the eggs of another species. For instance, sperm may not be able to survive in the reproductive tract of females of the other species, or biochemical mechanisms may prevent the sperm from penetrating the membrane surrounding the other species' eggs
What type of organism are losing population around the planet?
Answer:
indian elephant
whale
mountain gorilla
black rhinoceros
sea turtle
orangutan
red panda
tiger
circle the terms that Apply to the human cheek cell?
1) prokaryote
2)Eukaryote
3) autotroph
4) heterotroph
Which of the following could be a gene?
A.
B.
C.
D.
Answer:
answer :,??LETER .BExplanation:
Yan po tqTwo tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.
A) Genetic engineering
B) Selective breeding (Artificial selection)
Answer:
Genetic Engineering
Explanation:
Image result for Two tomato plants are cross pollinated to produce tomato plants that produce more tomatoes.
When tomatoes cross pollinate, the genetic material of the two tomato varieties will combine and the seeds will be hybridized. Cross pollination will not affect the fruit, only the seeds inside.
Answer:
b
Explanation:
selective breeding Artificial selection
Which part of the brain has the most motor connections and is the location for the upper motor neurons
Answer:
cerebral cortex
Explanation:
Upper motor neurons are located in your brain and spinal cord. They send signals to lower motor neurons.
The upper motor neurons originate in the cerebral cortex and travel down to the brain stem or spinal cord, while the lower motor neurons begin in the spinal cord and go on to innervate muscles and glands throughout the body.
how many calories in chick fil a peppermint milkshake?
Answer: 660 total calories. The whipped cream accounts for 60 of those calories, the cherry is 5 of those calories.
It also has 21g of fat, 109g of carbs, and 11g of protein
Answer:
660 calories
Explanation:
What is a fluid? What states of matter are considered fuilds?
Answer:
Liquids and gases are called fluids because they can be made to flow, or move.
Explanation:
All gases and all liquids are fluids, as well as a few solids known as "amorphous solids," like glass. A fluid is matter that flows when a force is applied to it. Period.
in which stage of meiosis do homologous chromosomes or homologs separate?
Answer:
anaphase I homologous pairs separate
which best describes the role of molecular oxygen in cellular respiration
Explanation:
What best describes the role of molecular oxygen (O2) in aerobic respiration? It accepts electrons when reacting to form water. ... The processes of photosynthesis and cellular respiration both involve exchanges of two gases—oxygen and carbon dioxide—with the atmosphere.
which option would help maintain homeostasis during exercise?
Answer:
As your body converts food into energy during exercise, it produces heat as a waste product. This extra heat can elevate your body temperature above the typical 98.6 degrees. To maintain homeostasis, the blood vessels in your skin dilate to allow more blood flow to the surface of your body where it disperses the heat.Jan 10, 2019
Explanation:
Answer:
Speeding up the rate of breathing
Explanation:
1.) Define Pure substances:
2.) What are the two different types of Mixtures?
3.) What are solvent and solute? Give an example for both.
Explanation:
The substances that are free from any kind of mixture and contain only one kind of particle are pure substances.There are two types of mixtures: heterogeneous and homogeneous.Solvent is, in simplest terms, something in which you dissolve another substance (also called as solute) and this mixture will yield what we know as a 'solution'. ... Some examples of solvents are water, ethanol, toluene, chloroform, acetone, milk, etc. Examples of solutes include, sugar, salt, oxygenThe greatest cause of the worldwide loss of species is ________. habitat destruction climate change air pollution water pollution decreased soil nutrients
Answer:
The greatest cause of the worldwide loss of species is climate change.
How does thermohaline circulation force the thermocline toward the
ocean's surface?
Thermohaline circulation begins in the Earth's polar regions. When ocean water in these areas gets very cold, sea ice forms.
What is Thermohaline circulation?The thermohaline circulation (THC) is that part of the ocean circulation which is driven by fluxes of heat and freshwater across the sea surface and subsequent interior mixing of heat and salt.
What is polar region?The areas of the Earth that encircle its geographical poles and are contained inside the polar circles are known as the polar regions, sometimes known as the frigid zones as well as polar regions.
These deep-ocean currents are driven by differences in the water's density, which is controlled by temperature (thermo) and salinity. This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice.Thermohaline circulation begins in the Earth's polar regions. When ocean water in these areas gets very cold, sea ice forms. The surrounding seawater gets saltier, increases in density and sinks. Winds drive ocean currents in the upper 100 meters of the ocean's surface.
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The difference between organisms are
A. Mutation
B. Variation
C. Natural Selection
Answer:
B. Variation
Explanation:
Thanks...........
Is the Harvard Forest a carbon source or a carbon sink, and how has the net ecosystem exchange (NEE) changed over time?
Answer:
This is strong evidence that suggests that the forest acts as a carbon “sink”: each year, it removes more CO2 from the air than it produces.
Explanation:
There are different sources of carbon. Harvard Forest is known to be a carbon sink.
Harvard Forest is known to have active C sink that is due to the forest regrowth after land abandonment.
Net ecosystem exchange is known to be negative every year. but the result is shown to be very variable. Result also show a decrease over time and this implies that the forest is removing more CO2 from the atmosphere presently than before.
When you look at the data of the last 25 years, there is a pattern of NEE being negative and also many variability.
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What’s the student scientific question?
Answer:
The scientific question posed by the student is, Does compost cause tomato plants to grow faster and taller than artificial fertilizer?
Explanation:
DNA polymerase always adds nucleotides to the ____ end of the leading strand and the ____ end of the lagging strand.
Answer:
1.Deoxyribose
2.Backbone
Explanation:
True or False: (&Why) Arteries are elastic and muscular.
Answer:
TRUE
Explanation: *internal screaming
antibiotics are compounds capable of killing bacteria. how is this a biotechnology?
A. antibiotics are used to kill bacteria, which are alive.
B. antibiotics are used to treat sick humans, and humans are living organisms.
C. antibiotics are viruses that have been deactivated but we're once alive.
D. antibiotics were first isolated from a living origin: mold.
Antibiotics are compounds capable of killing bacteria. This is biotechnology because antibiotics were first isolated from a living origin: mold. The correct option is D.
What are antibiotics?When the body develops a resistance to antibiotics, antibiotic resistance happens. Antibiotic abuse or overuse is what led to antibiotic resistance. When germs develop resistance to medications meant to kill them, it happens.
Because antibiotics are unable to combat bacteria, the bacteria grow and produce illnesses that can result in life-threatening infections, incapacity, or even death.
The overuse or improper use of antibiotics was somehow the cause of all antibiotic resistance. It takes place when the bacteria completely lose their ability to be killed by drugs and instead develop a resistance to them.
Therefore, the correct option is D. antibiotics were first isolated from a living origin: mold.
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Why is DNA called the universal genetic code?
A.) All DNA is contained in the nucleus of a cell.
B.) DNA has been found on every planet in our universe.
C.) All organisms are made up of DNA which is made up of nucleotides.
D.) DNA is found in animal and plant cells, but not in bacteria.
Answer: C
Explanation: flvs exam
DNA is called the universal genetic code because, all organisms are made up of DNA which is made up of nucleotides. The nucleotides present in all organism is of the same types but they differ in the arrangements.
What is DNA ?Deoxyribonucleic acid or DNA is the basic unit of the genetic material in every level of living organism. DNA is the hereditary material that is inherited from the parent cells to the daughters cells during reproduction.
A DNA molecule is made of a ribose sugar a phosphate group and a nucleoside. Two such strands are joined together to form a DNA sequence where, the two strands are connected through the nitrogen bases adenine, guanine, cytosine and thymine as a the steps in a stair case.
The helical structure of DNA is same for all kind of organisms however, the arrangement of nitrogen bases differ. Animals, plants, fungi, bacteria, virus, and all other prokaryotes even contain DNA in their cells. Hence it is called the universal genetic code.
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What terrorist group became active in great britain in 1974?
Answer: Read the bottom the explaination
Explanation:Accordingly, the IRA began a series of terrorist attacks on Britain's mainland. The IRA began its campaign when in February 1974 a bomb exploded on a bus that was transporting soldiers and their families to an army base in North Yorkshire; 12 people were killed, including two young children.
Answer:
The Real Irish Republican Army (RIRA)
What’s the labels in the boxes
Sketch and label a general life cycle diagram of a
gymnosperm. Your diagram must include the following: female cone, male cone, pollen grains, scale, seeds, eggs, adult sporophyte, pollination, germination, fertilization.
Answer:
?
Explanation:
Characteristics of Gymnosperms
Gymnosperms are seed plants adapted to life on land; thus, they are autotrophic, photosynthetic organisms that tend to conserve water. They have a vascular system (used for the transportation of water and nutrients) that includes roots, xylem, and phloem. The name gymnosperm means “naked seed,” which is the major distinguishing factor between gymnosperms and angiosperms, the two distinct subgroups of seed plants. This term comes from the fact that the ovules and seeds of gymnosperms develop on the scales of cones rather than in enclosed chambers called ovaries.
Gymnosperms are older than angiosperms on the evolutionary scale. They are found far earlier in the fossil record than angiosperms. As will be discussed in subsequent sections, the various environmental adaptations gymnosperms have represent a step on the path to the most successful (diversity-wise) clade (monophyletic branch).
Gymnosperm Reproduction and Seeds
Gymnosperms are sporophytes (a plant with two copies of its genetic material, capable of producing spores ). Their sporangia (receptacle in which sexual spores are formed) are found on sporophylls, plated scale-like structures that together make up cones. The female gametophyte develops from the haploid (meaning one set of genetic material) spores that are contained within the sporangia. Like all seed plants, gymnosperms are heterosporous: both sexes of gametophytes develop from different types of spores produced by separate cones. One type of cone is the small pollen cone, which produces microspores that subsequently develop into pollen grains. The other type of cones, the larger “ovulate” cones, make megaspores that develop into female gametophytes called ovules. Incredibly, this whole sexual process can take three years: from the production of the two sexes of gametophytes, to bringing the gametophytes together in the process of pollination, and finally to forming mature seeds from fertilized ovules. After this process is completed, the individual sporophylls separate (the cone breaks apart) and float in the wind to a habitable place. This is concluded with germination and the formation of a seedling. Conifers have sperm that do not have flagella, but instead are conveyed to the egg via a pollen tube. It is important to note that the seeds of gymnosperms are not enclosed in their final state upon the cone.
Answer:
Gymnosperms produce both male and female cones, each making the gametes needed for fertilization; this makes them heterosporous.
Megaspores made in cones develop into the female gametophytes inside the ovules of gymnosperms, while pollen grains develop from cones that produce microspores.
Conifer sperm do not have flagella but rather move by way of a pollen tube once in contact with the ovule.
Research suggests that a permissive parenting style usually has the best outcome for children.
True
False
False
Explanation:
Becuase this may make the children very bad and unpolite in the future.
2. Apply Scientific Reasoning Your teacher
has prepared a solution by stirring sodium
thiosulfate into hot water in a beaker. After
it has cooled, she drops a small crystal of
sodium thiosulfate into the beaker. The small
crystal quickly grows very large. Explain
what happened.
sodium thiosulfate into the beaker. The small crystal quickly grows very large. Explain what happened
Answer: heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. ... Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
What is sodium thiosulphate?The inorganic compound sodium thiosulfate, sometimes known as sodium thiosulphate, has the formula Na2S2O3.xH2O.
It can be found as the pentahydrate which is white or colorless. The solid is a crystalline efflorescent (quickly loses water) substance that readily dissolves in water.
Gold mining, water purification, analytical chemistry, the creation of silver-based photographic film and prints, and medicine all make use of sodium thiosulfate.
The treatment of cyanide poisoning and pityriasis are among the medical applications of sodium thiosulfate. It is among the safest and most useful medications required in a healthcare system.
Therefore, Heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.
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