Answer:
Explanation:
In geology, petrifaction or petrification is the original material and the filling of the original pore spaces with minerals. Petrified wood typifies this process, but all organisms, from bacteria to vertebrates, can become petrified. Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals. Researchers at UCLA and the University of Wisconsin–Madison have confirmed that microscopic fossils discovered in a nearly 3.5 billion-year-old piece of rock in Western Australia are the oldest fossils ever found and indeed the earliest direct evidence of life on Earth. The study, published Dec.
The transfer of energy by electromagnetic waves is called
A. conduction.
B. convection.
C. radiation.
D. insulation.
Help Quick
Answer:
C.Radiation
Explanation:
The periods are the rows of the modern periodic table.
True or false
Answer:True
Explanation:
Using the chart on page 257 in your text as a guide, explain how the two memory systems (automatic and effortful) processes work.
Select the part whose main job is to help a plant cell make proteins.
vacuole
endoplasmic reticulum
chloroplasts
cell wall
Answer:
Endoplasmic reticulum
Explanation:
How does decreasing the temperature when food is refrigerated slow decomposition and bacterial growth
Answer:
Low temperatures slow down chemical reactions, the action of enzymes, and delay or inhibit the growth and activity of microorganisms. The lower the temperature, the slower the chemical reactions, enzymatic action and bacterial growth will be.
Explanation:
Refrigeration consists of keeping the products at low temperatures, but above their freezing temperature. Refrigeration prevents the growth of microorganisms that can withstand temperatures above 45º C and many that can survive temperatures ranging from 15 to 45º C. If we lower the storage temperature of perishable foods, we will be able to significantly reduce the speed of reproduction of the vast majority of microorganisms, which cause decomposition and generate possible diseases in consumers. Refrigeration decelerates the metabolism of organic matter until it stops almost completely when we reach -18 ° C (international conservation standard for most frozen products), in addition to achieving partial or total inhibition of altering processes in food, such as certain enzymatic reactions or the metabolic degradation of proteins, thus delaying the decomposition of these.
Help please ! Thanks
Answer:
75%
Explanation:
The allele for purple flowers (capital P) is dominant.
The allele for white flowers (lowercase p) is recessive.
If one allele is capital P, it doesn’t matter if the other allele is another capital P or a lower case p, the capital P will dominate and purple flowers will show up.
The Punnett Square shows:
PP, Pp, Pp, and pp
• 3 of the offspring have at least one dominant and capital P, so purple flowers show up.
• 1 of the offspring has two lowercase and recessive alleles (p), so white flowers show up.
3/4 or 75% of the offspring will have purple flowers.
[tex]\huge\boxed{Option A}[/tex]
_____________________________________ PEA PLANT:Pea plant has purple color flowers dominant over white color flowers.
Purple flower dominant allele is P
White Flower recessive allele is p
We would get White flower pea plant only when the recessive allele is in HOMO.ZYGOUS condition
_________________________________________________________
CONDITIONS:Hom.ozygous Dominant Alleles: PP (Purple Flower)
Heter.ozygous Dominant Alleles: Pp Purple Flower)
Hom.ozygous Recessive Alleles: pp (White Flower)
____________________________________ CROSS:Whenever we cross Heterozygous Dominant(Pp) purple flower with another Heterozygous dominant (Pp purple flower), we get 75% of the flowers PHENOTIPICALLY(physical appearance) white flowered, and 25 white flowered Because as you can see in the picture,
The P1 is Pp
The P2 is Pp
When we cross them,
It has 4 offsprings,
PP Hom.ozygous Purple flower
Pp Heterozygous Purple flower
Pp Heterozygous Purple flower
pp Hom.ozygous white flower
Thus the answer is 75% as there are phynotypically 3 purple flowers present
_____________________________________ Best Regards, 'Borz'Your teacher sends you out to collect some limestone, how can you be sure what you have is limestone, not shale?
Answer:
if it has crystol lysoles in it which u can see with the naked eye its a limestone
Explanation:
How are dewpoint and relative humidity related?
Answer:
Explanation:
Dew point is the temperature to which air must be cooled to become saturated with water vapor. Relative humidity is the percent of saturation at a given temperature; it depends on moisture content and temperature. Relative humidity is the amount of moisture actually in the air to the maximum amount that can be present at that temperature. The dew point is the temperature at which a given sample of air will have a relative humidity of 100 percent; hence, the saturation temperature.
Which of the following is an example of cohesion?
A. water transforming into vapor
B. water soaking into a paper towel
C. water slowly dissolving rocks over time
D. water forming droplets during a rainstorm
Answer:
b
Explanation:
What is a eukaryotic cell —
Answer:
Eukaryotic cells are the cells that contain a membrane bound nucleus and organelles.
Hope I helped
Answer:
An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins into chromosomes.
Explanation:
Which of the following is most likely the result of an organism having lipids in its body
Answer:
Explanation:
where are the choices at?
A food chain is the feeding relationship among all of the organisms in an ecosystem? True or False
Answer:
False that I believe is a food web
Explanation:
A food chain is a chain of one organism from grass to rabbits to fox that is a food chain
Image to compare and contrast the two
The air masses that interact to form hurricanes and cyclones rise and fall due to changes in air density and air pressure. Why do these storms also spin? O A. Low-pressure air pushes high-pressure air sideways. O B. Earth's rotation causes the air to turn as it moves north. O C. The Moon's gravity pulls air currents with the tides. O D. Ocean currents drag the air above them in circles.
Answer:
A
Explanation:
Which of the following medications is created using molecular cloning and recombinant DNA technology?
Insulin(humulin), somatostatin, interleukine, Penicillin etc
In photosynthesis, the first step in capturing light energy occurs when
The photograph shows of waves made by an earthquake. what was transported to this location by the earthquake waves?
A. Rock
B. Matter
C. Gravity
D. Energy
Answer:
Energy
Explanation:
I just took the test and got it right
Answer:
Explanation:yes ENERGY!
What are the end results of translation?
Answer:
Proteins
Explanation:
What clinical term refers to the process of aging?
somatic death
senescence
rigor mortis
genetic therapy
PLEASE HELP, WILL GIVE BRAINLEIST!!!
Answer:
A.
Explanation: The statement A is the only one that corresponds correctly with the graph.
how efficient both lungs and gills are in these crabs?
Answer:
In crabs, gills are more inferior to lungs in O2 uptake, but they are both quite efficient.
Explanation:
Hope this helped!
Answer:
Both are used for oxygen intake and excretion
Explanation:
In all species, the lungs were extremely effective in oxygen uptake whilst the performance of the gills was inferior. An exception to this was Gecarcoidea natalis, which has gills highly modified for aerial gas exchange; its gills and lungs were equally efficient in O2 uptake. The relative efficiencies of the lungs and gills in CO2 excretion differed between species, with the gills being the major site of CO2 loss in the more amphibious species and the lungs having an increasingly important role in the more terrestrial crabs. The presence or absence of lung portal systems was not found to correlate with either saturation rates or efferent oxygen concentrations, with both lung types being extremely efficient in O2 uptake. The lungs with portal systems showed a large increase in oxygen content in the first lacunar bed and progressively smaller increases in the next two; these lungs may, therefore, have some reserve for exercise.
Your body only has one means of defense when it comes to protecting your body from diseases. Question 7 options: True False
Answer:
False
Explanation:
Answer:
False!
Explanation: First you have your immune system. Then the little hairs deep up in your nose help filter out viruses and bad bacteria! So that is two ways.
Which of the following is a nucleotide found in DNA?
F
adenine + phosphate group + thymine
G
cytosine + phosphate group + guanine
H
deoxyribose + phosphate group + polymerase
J
deoxyribose + phosphate group + cytosin
Answer:
H
Explanation:
Answer:
J
Explanation
A nucleotide consists of a sugar molecule (in this case, deoxyribose), a phosphate group and a nitrogenous group. Based on this definition of a nucleotide, J would be the most appropriate answer as it lists deoxyribose (sugar molecule), a phosphate group and the nitrogenous base cytosine.
What Happens When a Recessive Allele Is Present More Than the Dominant?
Answer:
Then the Recessive trait is passed down to the offspring.
Hope it helped
When comparing mitochondria and chloroplasts in plant cells, which statement BEST explains a similarity in the cellular function of these organelles
A
These organelles are both important for the uptake of nutrients from the cell's exterior.
B
These organelles are both important in the regulated transport of molecules within cells.
с
These organelles are both important for the conversion of energy to a usable form for cells.
D These organelles are both important for the use of cellular genetic information to make proteins.
Answer:
The correct answer is - с. These organelles are both important for the conversion of energy to a usable form for cells.
Explanation:
Chloroplast and mitochondria are the two organelles that are essential for the biosphere specially autotrophs like plants and heterotrophs as chloroplast is the organelle that converts light energy into chemical energy by forming sugars by the process called photosynthesis by trapping the sunlight.
This chemical energy that is stored in glucose molecule moves to the mitochondria where by the procee of the cellular respiration the chemical energy converted to the ATP, the energy form that is used by the cell for the performing its function.
why might the author have capitalized the word "DO"
Answer:
To express a feeling in a sentence. Or, if someone is saying it to bolden the meaning.
Explanation:
what are Sources of thermal pollution
Answer: The major sources of thermal pollution are heated waste water produced from production and manufacturing plants – coal fired thermal power plants, natural gas plants, nuclear plants, textiles, paper and pulp industries, etc. Some of the important sources of thermal pollution are nuclear power and electric power plants, crude oil refineries, steel melting factories, coal fire power plant, boiler from industries which release large amount of heat to the water bodies leading to change in the physical, chemical and biological characteristics ...
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!!! :D
PLZ HELP!.......Which features help reduce the amount of runoff that occurs in an area?
A)hard soil
B)steep slopes
C)paved surfaces
D)increased vegetation
Answer:
The answer is D) Increased vegetation.
Explanation:
Plants help keep earth and soil in place so it wont cause runoff.
Answer:
The Answer would be D). increased vegetation.
Explanation:
Edge 2021
according to newtons first law of motion a mass in motion remains in motion unless acted upon by some force true or false
According to Newton's first law of motion, the answer would be true.
The Newton's first law of motion states that a body will either continue to rest or in motion unless an external force acts on it.
For a body in rest, an external force would be needed to get it movingFor a moving body, an external force would be needed to increase or decrease its velocity or bring it to a rest.The body represents a mass. Hence, that a mass in motion would remains in motion unless acted upon by some force represents a version of Newton's first law of motion.
More on Newton's law can be found here: https://brainly.com/question/3715235
What is the cisterna chyli
Answer:
the cisterna chyli is the dilated origin of the thoracic duct, which receives the right and left lumber lymphatic trunks and the intestinal lymphatic trunk.
A water molecule contains two hydrogen atoms and one oxygen atom. Which of the following
statements about water molecules is true?
A. All of the atoms have a positive charge.
B. All of the atoms have a negative charge.
C. The oxygen atom is positively charged and the hydrogen atoms are negatively charged.
D. The oxygen atom is negatively charged and the hydrogen atoms are positively charged.
Answer:
D. The oxygen atom is negatively charged and the hydrogen atoms are positively charged.
Explanation:
A water molecule is consists of two hydrogen bonds and one oxygen bond. The hydrogen and oxygen atoms share unequal electrons to form covalent bonds.
Due to unequal sharing of electrons oxygen atoms attracts electrons more strongly than the hydrogen atoms and oxygen gains a slightly negative charge and hydrogen atom gains slightly positive charge.
Hence, the correct option is "D. The oxygen atom is negatively charged and the hydrogen atoms are positively charged."