Answer:
1.a current in a fluid that results from convection.
2.measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls.
Explanation:
Answer:
1.A convection current is a process that involves the movement of energy from one place to another. It is also called convection heat transfer. What is the reason that makes you feel hotter when placing hands above a campfire or when sitting next to it? Or, why is the movement of liquid so rapid when water is boiled in a pot? These things happen as a result of the Convection Currents.
Explanation:
2. A thermometer measures temperature through a glass tube sealed with mercury that expands or contracts as the temperature rises or falls. ... As temperatures rise, the mercury-filled bulb expands into the capillary tube. Its rate of expansion is calibrated on the glass scale.
Humans originated in Africa about 7 million years ago: if life on earth started 3.5bya ago and represented 24 hours from then to today, how many minutes of these 24 hours would be devoted to this 24-hour clock
a) since the first humans showed up?
b) since Humans showed up 300,000 ya?
Which is NOT an example of a fossl fuel
O Coal
O Oll
O Water
O Natural gas
Please help ASAP
Were there any extinction events that occurred during the Cambrian period?? Help !!!
You are part of a small group of humans rocketed at “warp speed” to Planet X, without any books, weapons, or technology. Planet X has no ozone layer to protect its surface from cancer-causing ultraviolet radiation, but native plants and animals have evolved to live safely there. Below the surface, the planet has a network of underground tunnels, just a meter high, which are inhabited by carnivorous predators.
Write 3 paragraphs using the vocabulary words we discussed today in class about how descendants of the group of humans would look and act after evolving for 100,000 years on Planet X.
Which is true regarding both mitosis
and meiosis?
A Both occur in only animal cells
B. All organisms go through both
mitosis and meiosis
C. They are both involved in cell division
D. None of the above
EuteckOut
bobof
Answer:
The correct answer is B. All organisms go through both mitosis and meiosis.
Explanation:
The same mechanisms of chromosomal segregation are at work in both mitosis and meiosis -- centrosomes, microtubules and motor proteins. Both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis.
Plz help ASAP
Marking Brianelist
Answer:
The answer is D
What type of material is often used to make Impressions of tool marks?
A. cement mix
B. dental paste
C. porcelain clay
D. plaster of Paris
Explanation:
I would say/ a rubber base material is used for tool Mark's, I believe dental paste is used because it has the same material as described above....
Which of the following is an example of olfactory sense?
Select one:
a. Salim predicted the lunch menu by touching the food
O b. Salim predict
the lunch menu just by the smell
of the food
c. Salim predicted the lunch menu by looking at the food
d d. None of these
b. Salim predict
the lunch menu just by the smell
of the food
Science question-
What are the two types of igneous?
A.Away from each other
B.Toward each other
C.They don’t move
Please help!!Have a good day!
Please help me
What is the advantage of porous bones in birds?
A. their holes assist in ridding the bird of wastes
B. their holes help keep the feathers intact
C. they are lighter, which helps with flight
D. they are lighter, which makes the bird need less food
Answer:
C. But see the answer under C. Apparently C is the accepted answer.
Explanation:
A. Not A.I don't think that's a problem for gulls especially on beaches.
B. Not B. Their feather do not look like they need much help in keeping their feathers attached when in flight.
C. This is not really the answer, but it is the best answer of these 4. The actual answer is that the bones are porous for better air intake which provides more oxygen and hence they are better able to fly.
D. Not D. Food has nothing to do with the problem. Birds get an adequate amount of food without their wings being porous. See the answer for C.
Answer:
C. they are lighter, which helps with flight
Explanation:
Have a great day
A microscope has a 4x ocular lens and a 10x objective, what is this microscope's
total magnification?
4x
14x
40x
400x
Answer:
It would be 40x
Explanation: The explanation is that 10x and 4x is 40x on a microscope unless you are working with a different type of microscope with the 50x ocular lens
Help fast plz!!!
In a population of moths, wing color became darker over time. Which of the
following is the best evidence that the change in wing color was an evolutionary change?
a) The size of the moth population changed.
b) The average length of the moths' dark wings increased.
c) The number of eggs that females laid during each breeding season increased.
d) The frequencies of the alleles for dark wing color in the moth population
changed.
Answer:
d) The frequencies of the alleles for dark wing color in the moth population
changed.
Answer:
D
Explanation:
It would best describe how or what made the moths have more dark/darker collored wings overtime.
A calorie is the amount of energy it takes raise the... of 1 mL of water by 1° C.
a) temperature
b) mass
c) volume
d) density
What information is necessary to understand how a virus produces the proteins it requires?
A. Whether the virus is in the lytic or lysogenic cycle
B. Whether the genome is made of RNA or DNA, whether the genome is double -stranded or single-stranded, and the sense of the genome
C. Whether the virus has a protein capsid
D. Whether the virus is helical, icosahedral, enveloped, or complex
Answer:
A is the answer i had same answer
The information is necessary to understand how a virus produces the proteins it requires is " whether the virus is in the lytic or lysogenic cycle".
What is virus ?A virus would be an infectious submicroscopic creature that only reproduces inside of live cells. All living things, including plants, animals, even microbes like bacteria or archaea, are susceptible to virus infection.
What is lysogenic cycle?The bacteriophage nucleic acid is integrated into the genome of the bacterial host during lysogeny or a spherical replicon forms in the bacterial cytoplasm.
Therefore, the information is necessary to understand how a virus produces the proteins it requires is " Whether the virus is in the lytic or lysogenic cycle".
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how can strong emotions influence the decisions you make.
Answer:
Strong emotions can make you do many things (sometimes things you don't want to). When someones is very angry they usually act out of anger and when someone is very sad they usuallu act out of sadness. It takes a strong minded person to be able to control their emotions whithout ever acting out.
Explanation:
What genome rule does any prokaryotic life on earth commonly does not have?
a. small circular plasmid DNA
b. follows the central dogma DNA>RNA>proteins
c. has thymine in place of uracil on the RNA strand
Water availability poses the single greatest limitation to plant life in deserts. The amount of moisture that is available for plants to
use is determined by the unique features of the soil. Which term describes the capacity of the soil to allow fluids to pass through it?
A)
texture
B)
composition
C)
particle size
D)
permeability
Frology Interactions of living
In what form is energy that is NOT used for life processes released from
living things?
A) Light energy
B) Sound energy
C) Thermal energy
D) Chemical energy
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Explanation:
competition a type symbiotic relationship is where
Answer:
they r ecological, not symbiotic
A student drew the following model.
Which phase is the best summary of the model
A researcher wants to study the impact of mutations on health. She focuses her work
on mutations associated with cancer. What would many of the mutations she studies
have in common?
A. They occur only in sex-cells.
B. They have no impact on cell function.
C. They cause the cell cycle to be unregulated.
D. The cause no change in amino acid sequence.
Motor proteins provide for molecular motion in cells by interacting with which of the following cellular structures?
components of the cytoskeleton
membrane proteins of the inner nuclear envelope
free ribosomes and ribosomes attached to the ER
cellulose fibers in the cell wall
Answer:
microtubules more chromosome motor protein required energy in the form of ATP ATP hydrolysis result in a conformational change that allows the protein to mobile of microtubule actor
Oxaloacetate is a key intermediate in the citric acid cycle, but it is also needed as a precursor for the synthesis of glucose during gluconeogenesis. Oxaloacetate is also fairly chemically unstable and undergoes spontaneous decarboxylation to pyruvate. Although oxaloacetate is not depleted by participation in the citric acid cycle, it can become depleted by other processes, necessitating its replenishment by various synthetic pathways. Use the Metabolic Map to identify enzymes that can replenish oxaloacetate or other citric acid cycle intermediates.
Answer:
Carboxylating pyruvate into oxaloacetate.
Explanation:
Replenishing oxaloacetate is done by carboxylating pyruvate into oxaloacetate through a process that is catalyzed by an enzyme called pyruvate carboxylase. This enzyme speed up the process and the replenishing of oxaloacetate occur quickly and the oxaloacetate is ready to function and participate in different chemical reactions.
Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.
What is the citric acid cycle?The citric acid cycle is a cycle which is important in aerobic respiration for the production of ATP.
One of the intermediates in the citric acid cycle is oxaloacetate.
Oxaloacetate combines with acetylcoA to form citric acid.
Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.
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Which two events take place during human sexual reproduction?
A. Fragmentation
B. Spore formation
C. Fertilization
D. Gamete formation
Answer and Explanation:
C...
Gamete formation and fertilization takes place during human reproduction. Therefore, option (C) and (D) are correct.
What is sexual reproduction in humans?Human fertilisation produces a human child via human reproduction, which is reproduction. It usually entails activity between a sexually mature male and female person.
Copulation, or sexual intercourse, involves the insertion of the erect into the vagina and the ejection of spermatozoa from the seminal fluid (semen) into the female genital tract. The ovum in the outer portion of the fallopian tube is subsequently fertilised by spermatozoa as they travel from the vagina via the uterus to the tube.
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Which adaptation allows reptiles to live entirely on land check all that apply
Reptiles' capacity to deposit amniotic eggs is the main trait that enables them to live exclusively on land. Amniotic eggs have a protective shell around them and include specific membranes that give the growing embryo a self-contained aquatic environment. Amniotic reproduction is the name given to this adaptation.
The amniotic egg has a number of crucial characteristics that let it thrive on land. These qualities consist of:
Shell: By minimizing water loss, the embryo's shell protects it physically and keeps it from desiccating (drying out).
Amnion: The amnion is a membrane that covers the embryo and holds amniotic fluid, which acts as a cushion and source of buoyancy.
The chorion is an additional membrane that encircles the amnion. By facilitating gas exchange, it allows carbon dioxide to leave and oxygen to enter the egg.
The allantois is a sac-like organ that aids in breathing and stores metabolic waste products from the developing embryo.
Egg yolk sac: The yolk sac is a source of proteins, lipids, and minerals that feed the growing embryo.
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The genootype for a pea plant that is hom0zygous recessive for both height and pea color
a.TtYy
b. ttyy
c. TTYY
d. ttYY
ASAP PLS HELP !!! Jfndndbrhdbdbr pls
If the bird population is directly proportional to the average monthly temperature, which month would have the LOWEST temperature?
Question 1 options:
8- August
12-December
1- January
10 October
Answer:
December
Explanation:
If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.
What is population?
The population of an organism can't survive if it exceeds it's carrying capacity. If animal population increases the population that eat that animal might also increase
The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase. If animal population increases the population that eat that animal might also increase.
The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease. When predators became scarce due to over population, the weekar species of animal start or die in other ways .
Therefore, If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.
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Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks?
atmosphere, cryosphere, geosphere
cryosphere, hydrosphere, biosphere
geosphere, atmosphere, hydrosphere
biosphere, atmosphere, cryosphere
Answer:
Atmosphere, Geosphere and Hydrosphere
Explanation:
The spheres of earth that get influenced by the human-caused air pollution which leads to acid rains that dissolves the limestone rocks are the atmosphere, geosphere, and the hydrosphere.
This is because the atmosphere contains polluted air which has the components of acid rain. The acid rains accumulate on the hydrosphere if not collected by the geosphere. The geosphere is the one that is drastically affected by the acid rains as the limestone rocks melt.
The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.
What is Acid rain?This is because acid rain is caused by contaminated air, which is present in the atmosphere. If the geosphere does not catch the acid rains, they build on the hydrosphere. As the limestone rocks melt as a result of the acid rains, the geosphere is the one that is most severely impacted.
Any type of precipitation with high concentrations of nitric and sulfuric acids is referred to as acid rain.
Snow, fog, and minuscule pieces of dry material that fall to Earth can likewise represent it. Acid rain typically has a pH between 4.2 and 4.4, whereas normal rain has a slightly acidic pH of 5.6.
Therefore, The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.
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In your own words, explain what the loss of trees in Uruk did to the agriculture and the population, and why this didn't happen in Anuradhapura
Answer:
Between approximately 3600 and 2600 BCE, the people of Uruk created the ... collected into a whole and living in a defined place with structures designated for a ... as one of the world's first cities (Uruk is its Akkadian name; its own people called it ... condemned to death, and Gilgamesh has to accept the loss of his friend
Explanation: