Explain the purpose of the pH scale and what does it measure?
Answer:
pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.
What is the relationship between the plant and animal cell structures? Can somebody please help me.
Answer:
Golgi apparatus's,ribosomes,rough endoplasmic reticulum,mitochondrion,nucleous,And cell membrane. while they both have vacuoles, a plant cells is much bigger than an animals cell.
Explanation:
atoms and molecules that make up a rock a>never move b>are in constant motion c>move when the rock is broken d>move when the rock is melted
Answer: I am not a outstanding chemist so forgive me if I am wrong but I think the answer would be
a>never move
I say this because one a rock is a solid and two even when broken I believe that would be Braking apart chemical bonds not moving atoms but again I am just going of rust high school chemistry knowledge.
The atoms and molecules that make up a rock never move. The correct option is a.
What are rocks made of?Minerals are the building blocks of rocks. They can be all one type of mineral, such as sandstone, which is made of sand, or they can be made of a variety of minerals, such as granite.
The Earth's crust is made up of rocks, which include the surface forms we see every day.
The particles in a solid are extremely attracted to one another. They are close together and vibrate in place, but they do not move past each other.
Rocks are classified into three types: sedimentary, igneous, and metamorphic.
Each of these rocks is formed by physical changes that occur as part of the rock cycle, such as melting, cooling, eroding, compacting, or deforming. Sedimentary rocks are formed from fragments of other rocks or organic material.
Thus, the correct option is a.
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Hewo random peps ;-; I ish back with more questions so heres what I think the answers are. 1. A C or D 2. C or D 3. A 4. A or D
The answer for 1 is metamorphism, the answer for 2 is plate tectonics, the answer for 3 is iron sulfide, and the answer for 4 is connected to mainland
1. What organism has the smallest number of chromosomes
Answer:
1. Smallest number: The female of a subspecies of the ant.
2. Myrmecia pilosula, has one pair of chromosomes per cell.
two systems interacting? What are the inputs and outputs of these systems?
EXPLAIN The scuba diver is a living system. The scuba gear, or self-contained
underwater breathing apparatus, is a system of air exchange. How are these
the body's response
. ,
Answer:
Breathing in human on land or during swimming or scuba diving, the human inhales oxygen and exhales carbon dioxide, These carbon dioxide molecules creates "air bubbles" that are then ousted into the water body. The diver at that point draws air from the pressurized air tank, and can inhale or breath. This permits the diver to remain submerged for any longer than only one inhale, and can travel deeper underwater.
Inside this framework, the Oxygen is primary input to the oxygen tanks, which are then utilized by the scuba diver. The diver would draw the oxygen from the tank considered as output in this system.
What are the 4 Kingdoms in the Eukarya Domain? A) There is only one. B) Protists, Fungi, Plants, Bacteria C) Protists, Fungi, Plants, Animals D) Protists, Bacteria, Archaea, Plants
What would cause the porosity observed in a rock like scoria?
Answer:
Scoria is a dark-colored igneous rock with abundant round bubble-like cavities known as vesicles. It ranges in color from black or dark gray to deep reddish brown. Scoria usually has a composition similar to basalt, but it can also have a composition similar to andesite.
Explanation:
CAN SOMEONE HELP ME PLEASE I REALLY NEED TO DO THIS HOMEWORK AND THANKS
Answer:
Yeah is it multi -choice?
Explanation:
Pick one type of biologist, besides an ocean biologist, and describe what he or she studies. List three questions that biologist might ask about what he or she is studying.
Besides an ocean biologists we also have a Microbiologist. He or she studies micro-organisms.
A Few question they might as include
Importance of the courseWhere can they work after graduationWhat is the value of the course presentlyMeaning of MicrobiologyMicrobiology can be defined as that branch of science that is focused in the study of micro-organisms of all kinds and how they relate to man and his environment.
Microbiology is a field of study that deals with things like bacterial, viruses etc.
In conclusion, Besides an ocean biologists we also have a Micro biologist. He or she studies micro-organisms.
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Staphylococcus aureus (remember that an organism’s scientific name can also be written with the genus name abbreviated—in this case, S. aureus) is a bacterium, one of the groups of microorganisms. Although the different groups of microorganisms share some similarities, there are several important differences that distinguish each group. Drag each of the following statements to the appropriate bin to indicate whether it is a characteristic of bacteria archa fungi, or viruses.1. Derive nutrition from organic or inorganic sources or conduct photosynthesis2. Have cell walls that contain peptidoglycan3. Not typically associated with human disease4. Found in extreme environments5. Eukaryotic6. Can be unicellular or multicellular7. Cannot survive outside a host cell8. Can be seen only with an electron microscopeA. BacteriaB. ArchaeaC. FungiD. Viruses
Answer:
Viruses: Found in extreme environments. Cannot survive outside of a host cell, can only be seen with an electron microscope
Fungi: Obtain nutrition from organic or inorganic sources or carry out photosynthesis. It is not usually associated with human diseases. Eukaryote: It can be unicellular or multicellular.
Bacteria: They have cell walls that contain peptidoglycan. Found in extreme environments (via spores)
Explanation:
In the part of the answer, the answer was given by grouping the different characteristics of the microorganisms, classifying them into three groups.
Viruses are considered microorganisms that need the replicative machine to reproduce their RNA or DNA, this is how it is doubted whether they are living organisms or not.
Fungi belong to a very broad group of subtypes, but they all refer to the fungi kingdom, they are in the form of spores in the soil or in the air, those fungi that are considered pathogens for humans, such as the generators of histoplasmosis, or blastomycosis. Most fungi are not pathogenic to our body, so some are edible, such as yeast.
On the other hand, and finally we have bacteria, which are a family that is classified into many groups according to their genus and species, their shape is what determines their nomenclature, such as those coconuts, which are grouped together in a of bunch of grapes and are called thus streptococcus in synonymous to this method of colonization and form. Many bacteria are typical of our commensal flora or microbiota, others are not, thus generating opportunistic infections or severe infections.
state two principles of treatment of a disease
An __________ gland is a ductless gland that empties its hormone into the extracellular fluid, from which it enters the blood.
Explanation:
An endocrine/exocrine gland is a ductless gland that empties its hormone into the extracellular fluid from which it enters the blood.
Should the food handler use the sanitizing solution to sanitize pans ?
Answer:
no because the sanitizer wont be effective
Explanation:
no matter how much sanitizer you put in it wont help because it wasn't at the right temperature
Which molecules require active transport to enter or exit the cell?
Answer:
a
Explanation:
do carbon dioxide attract mosquitoes
Answer:
Yes, it does.
Explanation:
Mosquitoes are attracted to the carbon dioxide animals create
Suppose that you were discussing cell theory with someone who has little understanding of biology. Which object could you best use as an analogy to explain the evolutionary history of modern cells?
Answer:
evolution of human works
Explanation:
The cell theory states that all living forms are composed of cells. These cells are the basic structural units of all organisms and they evolved from pre-existing cells present in primitive living forms. From a biological point of view, the evolution of cells is similar to the evolution of human works, which were during the beginning of human civilization less specialized than in modern times. Likewise, somatic cells present in evolutionary recent multicellular organisms are capable of carrying out more complex functions than primitive cells present in unicellular organisms.
Which of the following statements is true? Group of answer choices All forms of life employ the same genetic code mRNA is the only type of RNA found in the living system A typical human liver cell has one set of chromosomes Organisms interact but do not affect their environment
Answer:
All forms of life employ the same genetic code
Explanation:
The genetic code refers to the set of rules that facilitates the translation of nucleotide sequences into amino acids sequences (proteins). mRNA is read in a group of three nucleotides called CODON, which specifies a particular amino acid. The totality of all codons makes up the genetic code.
However, one of the characteristics of the genetic cos is its UNIVERSAL nature. The genetic code is said to be nearly universal meaning that the genetic code is the same in almost all living organisms with few exceptions. For example, AUG codon encodes Methionine amino acid in all forms of life.
Hence, All forms of life employ the same genetic code is TRUE. Note that, tRNA and rRNA are other types of RNA found in living systems. Also, liver cells are diploid i.e. has two sets of chromosomes. Lastly, interacting organisms affect their environment
All the forms of life employ the same genetic code.
• It is true that all the forms of life exhibits the same genetic code, however, they do not possess similar genome.
• The set of rules used by the living cells is known as the genetic code.
• It is used to translate information encoded within the genetic substance, that is, mRNA or DNA sequences into the proteins.
• The genetic code is greatly identical among all the organisms and can be articulated in a simple table with 64 entries.
Thus, the correct statement is that all the forms of life employ the same genetic code.
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Which temperature scale measures water boiling at 373 degrees?
A.Fahrenheit
B. Kelvin
C. Celsius
D. Newton
Which of the following is true about the Sun's radiation? A. It reaches the Earth only as ultraviolet light. B. It reaches the Earth with a wide range of wavelengths. C. It reaches the Earth with several frequencies and one wavelength. D. It reaches the Earth with several wavelengths and one frequency.
Answer:
It reaches the earth with a wide range of wavelengths
Explanation:
Answer:
B. It reaches the Earth with a de range of wavelengths.
Explanation:
Study Island
A grassy meadow high in the Sierra Nevada Mountains of eastern California is known to support a variety of organisms. During the summers when grass is thick and lush, and wildflowers abound, butterflies take advantage of this abundant nectar source. Bears graze on the berries in shrubs at the edge of the meadow. Deer also forage at the edge of the meadow. In the early mornings, coyotes are known to prey on the squirrel and mouse populations that burrow into the meadow soil. A variety of birds prey on the butterflies and other flying insects, such as bees and wasps.
If the biomass of flowers that support the butterflies was known to contain 100,000 units of energy, and certain bird species were eating the butterflies that foraged on the flowers, what amount of energy, on average, could be expected to be transferred to the birds?
Group of answer choices
a)100
b1,000
c10
d10,000
e50,000
Answer:
b) 1,000
Explanation:
In a typical food chain as described in this question, flow of energy occurs from one organism to another when they feed/fed upon. As one organism feeds, energy gets transferred to it. However, only about 10% of the available energy in the lower trophic level gets transferred because majority of the energy (about 90%) is lost as heat during metabolic processes of the organism.
Hence, if a flower contains approximately 100,000 units of energy and is fed on by butterflies. 10% of 100, 000 = 10,000 units gets transferred to the butterflies.
Likewise, the butterflies gets fed on by certain bird species. 10% of the available 10,000 units of energy in the butterfly gets transferred to the birds.
= 10/100 × 10,000 = 1000 units of energy.
examples of phototaxis
Answer:
phytoflaggellates, e.g. Euglena, and photosynthetic bacteria.
Explanation:
Answer:
a bug crawling towards sunlight
Explanation:
Viruses are resistant to which of the following: all of the above, freezing,disinfectants,heat
Answer:
All of the above
Explanation:
Numerous virus can survive in extremely hot, freezing, extremely acidic, or extremely salty settings. Additionally, the viruses that infect such bacteria must be able to maintain their infectivity under adverse circumstances. Thus, option A, C, D is correct.
What are the unfavorable conditions for virus?Because they lurk inside cells, viruses present a significant challenge to the immune system of the body.
Antiviral drug resistance may appear as chronic or escalating viremia or illness despite treatment, due to prolonged antiviral drug exposure and continued viral replication brought on by immunosuppression.
When a virus ceases responding to an antiviral drug, it is said to have developed antiviral resistance. Antiviral medications become ineffective or altogether useless as the virus evolves.
Therefore, virus are resistant.
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Which of the following best describes how does latitude affect biomes?
Higher latitudes receive less sunlight producing cold biomes.
Latitudes affect how much rainfall a biome will receive.
Lower latitude biomes will always have high temperature.
Higher latitudes produce warm biomes.
Answer:
A) higher latitudes receive less sunlight producing cold biomes
Explanation:
Biomes are determined primarily by temperature and precipitation. Generally speaking, biomes at higher latitudes (further away from the equator) are cooler and drier. Closer to the equator, biomes are generally warmer and wetter, as warmer air holds more moisture than colder air.
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Answer:
A. Higher latitudes receive less sunlight producing cold biomes.
1. Which of the following is an example of a scientific theory?
A. The law of gravity
B.an explanation of how disease spreads
C.an untested hypothesis about the structure of DNA
D. E =mc2
Answer:
The answer is B.
Explanation:
This is because a scientific theory is similar to a explanation.
Which of the following is NOT evidence for Continental Drift Hypothesis? Group of answer choices A. Continents fitting together like massive jigsaw puzzle pieces. B. Identical rock types found of continents separated by vast oceans. C. Glacial/artic conditions found in regions where snow and ice does not exist today. D. Ocean trenches/spreading centers mapped. E. Matching fossils separated by vast oceans.
Answer:
The correct answer would be D, Ocean trenches/spreading centers mapped.
Explanation:
I hope this helps you. :)
The statement that doesn't describe evidences as regards Continental Drift Hypothesis is : B: . Identical rock types found of continents separated by vast oceans.
Continental drift can be regarded as theory which gives explanation about the shifting and changing of position of continents on Earth's surface. This theory was set set up by Alfred Wegener, in the year 1912, continental drift help us to understand the similarities between look-alike animal as well as plant fossils, and how they were found on different continents.Another evidence of this is how continents fit together like massive jigsaw puzzle pieces
Therefore, option B, is correct
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A yellow tulip and a red tulip are
Answer: It is D variations of the same species
Explanation:
correctly name the organelle responsible for this impressive mechanism action described above
the nucleus of the cell
Carbon is an essential element for life how does its atomic structure allow it to form so many different molecules
Answer:
This is because Carbon has four valence electrons (tetravalent) which gives it the ability to form up to four bonds differently with different elements/compounds. This gives rise to the creation of lots of compounds.
Carbon as an element also has atoms which fits into most substances thereby creating different possible compounds with others such as in carbohydrates, proteins, lipids etc. This is what makes Carbon an essential element for life.
The sun produces energy from matter in its core through the process of _
Answer:
I believe the process is called necular fusion.
please correct me if I’m wrong :)
Explanation: