Answer:
Two menisci
Explanation:
They separate and align the femoral and tibial joint surfaces.
Oxygen is essential for many forms of life, yet early earth had very little oxygen in the atmosphere. Where did the increase in oxygen come from?.
Answer:
Literally, it is the waste product of cyanobacteria, also known as blue-green algae.
EXPLANATION
Explanation:
Between two to three billion years ago, Earth's atmosphere started changing.
Organisms living then were doing so anaerobically (without oxygen), but there was a gradual build up of oxygen in the atmosphere - the reason for this, as well as for the percentage of oxygen stabilising at around 21% is still unclear.
What we do know is that tiny organisms known as cyanobacteria (or blue-green algae) would photosynthesise carbohydrates for their nutrition and growth using sunlight, water, and carbon dioxide.
The waste product of photosynthesis, till today, is oxygen.
Over time, this oxygen increased till it reached the levels that we experience today.
The chloroplasts in today's plants are symbiotic cyanobacteria that continue the same process started billions of years ago.
In the scientific world, cold hard facts are often termed?
Answer:
laws
Explanation:
Riboflavin is a cofactor for the reaction in which ___split into fatty acids and glycerol in the cytosol to prepare for entry into metabolic pathways
Answer:
electron transport chain
Explanation:
sorry if its wrong
If an alien from another planet landed in front of you what song would you play for them to help them understand humanity
Answer:All star smash mouth
Explanation:
All star smash mouth. A planet is a sizable body that revolves around a star.
What are planets?
An object must have enough mass to have been compressed by gravity into a spherical, or round, shape in order to qualify as a planet. It must also be big enough for any rocky or icy debris in its orbit around the star to have been swept away by gravity.
According to science, planets start to form when a nebula, or dense cloud of gas and dust, revolves around a young star.
Gravity forces the nebula's material fragments to clump together over time. These aggregates develop and gather over time. These clusters eventually develop into planets.
Therefore, All star smash mouth. A planet is a sizable body that revolves around a star.
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Cellular phones can cause traffic accidents when used while driving.
a. True
b. False
Answer:
it's very true
Explanation:
How many dominant alleles does an individual need in order to have the autosomal dominant trait.
According to Gordon Allport, __________ traits are common personality traits found in most people.
A.
primary
B.
central
C.
cardinal
D.
secondary
According to Gordon Allport, central traits are common personality traits found in most people.Therefore, the correct option is B.
What are central traits?Central traits are the core traits that define a person's personality, and they are the most useful for describing an individual's overall character. Allport believed that central traits are relatively stable and consistent over time and across different situations, and that they can have a powerful influence on an individual's behavior and attitudes.
In contrast, primary traits are more specific and less influential, while cardinal traits are rare and dominate an individual's entire personality. Secondary traits are less important and less enduring than central traits, and they are typically related to specific situations or contexts.Therefore, the correct option is B.
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What does the word photo means
Answer:
photo mean light in biology
Choose the statements that accurately describe a good hypothesis. A good hypothesis is based on one’s personal opinion. A good hypothesis can be tested. A good hypothesis leads to a test with measureable results. A good hypothesis is not always based on prior knowledge or research. A good hypothesis answers or explains a scientific question
Answer:
The answers are:
A good hypothesis can be tested.
A good hypothesis leads to a test with measureable results.
A good hypothesis answers or explains a scientific question.
Explanation:
Answer:
A good hypothesis can be tested.
A good hypothesis leads to a test with measureable results.
A good hypothesis answers or explains a scientific question.
Explanation:
Why does Liam has a higher water retention than clay ?
Answer: You are missing some important information to this question.
Explanation:
In the scientific world, cold hard facts are often termed
Answer:
Laws.
Explanation:
PLEASE HELP ME IT WOULD MEAN SO MUCH
. Use each of the following terms in a separate
sentence: energy resource, fossil fuel, petroleum,
natural gas, coal, acid precipitation, and smog.
Understanding Key Ideas
2. Which of the following types of coal contains
the highest carbon content?
a. lignite
b. anthracite
Deat
d bituminous coal
3. Name a solid fossil fuel, a liquid fossil fuel,
and a gaseous tossil fuel.
4. Briefly describe how petroleum and natural
gas form.
5. How do we obtain petroleum and natural gas?
6. Describe the advantages and disadvantages of
fossil fuel use.
Critical Thinking
7. Making Comparisons What is the difference
Detween the organic material from which coa.
forms and the organic material from which
petroleum and natural gas form?
8. Making Inferences
Why can't carpooling and
using mass-transit systems eliminate the prob
lems associated with fossil fuels?
Interpreting Graphics
Use the pie chart below to answer the questions
that follow.
Oil Production by Region
North
Europe
America
and former
6%
Soviet Union 8%
South
Asia
America
9%
Africa
Middle
East
66%
Source: International Energy Agency.
9. Which region produces the most oil?
10. If the total sales of oil in 2002 were $500 bil-
lion. what was the value of the oil produced in
North America?
anthracite coal
coal, oil and natural gas.
these layers were buried under sand, silt, and rock. Pressure and heat changed some of this carbon and hydrogen-rich material into coal, some into oil (petroleum), and some into natural gas. (Info U.S. Energy Information)
Advantages:
Readily available (at the moment)
Relatively easy to produce energy from them
Disadvantages:
Non-renewable source – will eventually run out
Increasing fuel costs
Release carbon dioxide (CO 2 ) when burnt – greenhouse gas
Explanation: Similarities: they are both formed from organic remains and both form under enormous pressures in a sedimentary sequence. Differences: coal is formed from land-based plants in bogs and coastal swamps, while oil and gas are derived from tiny marine organisms, such as algae and phytoplankton. (https://socratic.org)
Country Million barrels per day Share of world total
United State Million barrels per day: 18.61 Share of world total 20%
Saudi Arabia Million barrels per day: 10.81 Share of world total 12%
Russia Million barrels per day: 10.50 Share of world total 11%
Canada Million barrels per day: 5.23 Share of world total 6%
The oil industry extracted a record high 4.47 billion barrels of crude oil in the United States in 2019 (around 12.25 million barrels per day), worth an average wellhead price of US$55 per barrel. U.S. oil production was 2.5 times as high in 2019 as it was in 2008 (when it reached its lowest level since 1946). (Wikipediahttps://en.wikipedia.org)
Hope this all helps! :)
Compare the processes of reproduction and growth.
Question 1 An investigation was set up to study the effect of an antibiotic on three strains of bacteria (A, B and C). The plates were incubated at 37°C for 48 hours. The diagram of plates 1, 2 and 3 in the bottom row above show the results of the investigation. Agar plates were set up as shown below. Study the investigation and answer the questions that follow. What is the aim of this investigaion?
Which instrument is used to record the shaking of the ground?
Answer:
Seismographs.
Explanation:
Seismographs are instruments used to record the motion of the ground during an earthquake. They are installed in the ground throughout the world and operated as part of a seismographic network.
Using a microscope, a scientist has identified a group of cells. Each oval shaped cell appears to have a cell membrane and several ribosomes in it's cytoplasm. In one area of the cells, a circular band of DNA can be observed. What type of cells are these
Answer:
Prokaryotic cells
Explanation:
........................
What does the similarity in the front limbs of different vertebrate animals tell us about their evolutionary relationships?
Answer:
they likely evolved from the same ancestor
Explanation:
because they have similar features
Why are unsuccessful genes eventually
lost?
A. because the body alters them into more desirable
genes
B. because the body removes those genes immediately
after they are created
C. because the organisms with those genes are more
likely to die before they can reproduce
D. because the organisms with those genes will choose
not to pass them on to their offspring
Unsuccessful genes are not favored by natural selection, so they do not get lost through generations. Option D. because the organisms with those genes will choose not to pass them on to their offspring.
What is Natural Selection?
Natural selection is an evolutive force that selects beneficial alleles and increases their frequency in the population.
It acts favoring an allele or against it, according to how it affects the fitness of individuals.
Natural selection acts on variation caused by mutations. Let us remember that a mutation is a change or alteration in DNI sequences that introduce new variants.
Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.
Unsuccessful genes are not favored by natural selection, so they do not get set. Instead, they are lost. Their frequency decreases until they dissappear. This is because they are not transmitted to the following generations.
The correct option is D. because the organisms with those genes will choose not to pass them on to their offspring.
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Answer:
its C
Explanation:
According to Piaget’s theory on cognitive development, individuals construct knowledge mainly through __________. Acquiring an early education interaction with the environment parental influence use of cultural tools.
The field of study that is related to psychology is Cognitive development theory. Knowledge is constructed through interaction with the environment.
What is Piaget’s theory?Piaget's theory states about the cognitive development of the growth and personality of human intellect. The biological factor and societal experiences results in cognitive development.
Children and young ones understand and comprehend the world surrounding them and then with their knowledge and the things they experience causes disparities.
Therefore, interaction with the environment is the correct blank.
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Answer:
B. Interaction With the Environment
Explanation:
The definition Poaget's theory on cognitive development is "Jean Piaget's theory of cognitive development suggests that intelligence changes as children grow. A child's cognitive development is not just about acquiring knowledge, the child has to develop or construct a mental model of the world"(American Institute of Phychology).
Slue the image of a plant
Which gas is cycled into the atmosphere at the arrow
Photosynthesis
oxygen
nitrogen
water vapor
carbon dioxide
Leaves on a tree can have different sizes and shapes depending on the amount of light they receive.
1. Codominance
2. Environmental influence on gene expression
3. Incomplete dominance
4. Maternal inheritance
5. Multiple alleles
6. Polygenic traits
Explanation:
Why do tree leaves have different shapes? The shape of a tree's leaves are a response to the tree species' long term ecological and evolutionary histories. An ecosystem's limiting factors may also modify the finished form and shape of a tree's leaves
How do vaccines help keep people well?
A. They help the body respond more quickly to a new pathogen.
B. They kill insects that commonly spread pathogens to people.
C. They cure diseases caused by bacteria and other pathogens.
D. They clean drinking water so waterborne pathogens don't spread.
Answer:
A. They help the body respond more quickly to a new pathogen.
Explanation:
Hope it helps
Helpppppp pleaseeeeeee
Answer:
The Mongols and Genghis Khan (1162–1227) are inextricably linked to horrific tales of conquest, ruin, and slaughter. This illustrious clan chief and his immediate successors built the world's biggest empire, stretching from the Pacific Ocean to modern-day Hungary in Europe.
The following were some of the effects of the Mongol conquest on subjugated peoples: Death, Destruction, Wealth Extortion, Disease, and Displacement However, it also included an increase in activity along the commercial routes that connect East Asia with the Mediterranean countries and Europe.
reasoning for this? its easy pls answer
Explanation:
here your answer
above photo
Which of the following relationships is an example of commensalism?
A. Bacteria live inside a human's stomach, making the person ill
B. Insects get food from flowers and help the flowers reproduce
C. Mosquitoes eat the blood of cows, passing along disease
D. A fish lives in coral, getting protection from the coral
Answer:
the answer is D. i think
Explanation:
a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter... D fits it most
A reproduction of a cell for growth and division occurs in very specific stages and in a specific order. The cell in Figure 9 - 5 is under going mitosis. Which stage of mitosis will follow this one?
A reproduction of a cell for grow and division occurs in very specific stages and in a specific order. The cell in Figure 9 - 5 is undergoing mitosis. Which stage of mitosis will follow this one?
anaphase
prophase
telophase
metaphase
in one to two sentences identify the purpose of the roots in a plant and how disease that harms the roots of a flowering plant would affect the plant's ability to survive
Given what we know, we can confirm that a disease that harms the roots of a plant will not allow the plant to draw in water, which it needs to maintain all basic functions of life.
What do the roots of plants do?The roots of plants are the means through which they absorb water and nutrients from the soil. Without their roots, plants cannot take in water to allow for all of the most basic functions of life, and cannot survive.
Therefore, we can confirm that a disease that harms the roots of a plant will not allow the plant to draw in water, which it needs to maintain all basic functions of life.
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___________ are the central building blocks of the nervous system.
Answer:
neuron is the answer
Explanation:
Which lived more recently in time, the common ancestor species of A and B or the common ancestor
species of B and C?
Answer:
B and C because their ancestors cut off more recently than A and B
Explanation:
Jm~ Hope this helps...
Answer:
Band C
Explanation:
c wwould be the closest in time so the ancestor of B and C would be closer to present time than the ancestor of A and B
HELP PLS
a.) How bad is pollution in our community?
b.) What do you do every day that adds to pollution?
c.) What do you do every day that helps to reduce pollution?
d.) Is there a lot of pollution in our country?
In my community, there is not much pollution.
To protect himself from pollution, I always use mask for safety.
To reduce the pollution I fall water in road etc, and I request people to use mask, Hankey.
yes.