Answer:
It is impossible for intact food to pass through the cell membranes since its molecules are too large. Animals can use nutrients and organic molecules when the food is broken down into smaller particles.
Explanation:
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?
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:
........................
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
Which process occurs when two haploid (N) nuclei fuse and a single diploid (2N)
nucleus is formed?
implantation
mitosis
fertilization
meiosis
Answer:
c. fertilization
Explanation:
Fertilization is the process when two haploid (N) nuclei fuse and a single diploid (2N) nucleus is formed. Therefore, option C is correct.
What is fertilization?Fertilization is the process by which a sperm cell from a male fuses with an egg cell from a female to form a zygote. In most organisms, including humans, fertilization occurs during sexual reproduction.
The zygote contains a unique combination of genetic information from both the mother and the father and will develop into an embryo, which will eventually grow into a fetus. Fertilization is a critical step in sexual reproduction, as it initiates the development of a new organism with its own unique set of genetic characteristics.
Thus, fertilization is the process when two haploid (N) nuclei fuse and a single diploid (2N) nucleus is formed. Therefore, option C is correct.
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What is the name given to the
final stage of cellular respiration?
A. Glycolysis
B. ADP
C. The Electron Transport Chain
Answer:
B
Explanation:
the others don't match.
"Oxidative phosphorylation is the final stage of aerobic cellular respiration. There are two substages of oxidative phosphorylation, Electron transport chain and Chemiosmosis. In these stages, energy from NADH and FADH2, which result from the previous stages of cellular respiration, is used to create ATP."
sugar made in the process of photosynthesis is sent to the mitochondria to produce........
Explanation:
In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose. In mitochondria, through the process of cellular respiration breaks down sugar into energy that plant cells can use to live and grow.✨✨✨✨✨✨⭐
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Answer:
In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose. In mitochondria, through the process of cellular respiration breaks down sugar into energy that plant cells can use to live and grow..
.AS YOUR WISHPLEASE IN QUICK!!! Why do patients seem to get sicker when they are using chemotherapy and radiation therapy?
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.
You will learn more about natural selection at
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Answer:
its C
Explanation:
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
What does the word photo means
Answer:
photo mean light in biology
Slue the image of a plant
Which gas is cycled into the atmosphere at the arrow
Photosynthesis
oxygen
nitrogen
water vapor
carbon dioxide
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
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
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.
At the beginning of an action potential, ____ ions flow from outside the nerve fiber into the nerve fiber.
Answer:
Positive Sodium Ions
Explanation:
Positive Sodium is the answer
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:
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).
Why does Liam has a higher water retention than clay ?
Answer: You are missing some important information to this question.
Explanation:
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.
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
A group of scientists studying the DNA of two hominids concludes the hominids have a common evolutionary ancestor. Which of the following would best support the validity of their conclusion? Independent teams reviewing their work and arriving at the same conclusion Explaining their experimental procedures in detail Proposing explanations for evidence that contradicts their conclusion Publication of their research in a popular magazine.
Independent teams reviewing their work and arriving at the same conclusion BEST support the validity of their conclusions. Revision is fundamental in scientific work.
The process of revision in scienceThe validation of empirical information obtained by using the scientific method is made by revision.
Reviewers are independent researchers who assess the scientific soundness of an investigation.
Generally, scientific journals send a publication to two or more independent reviewers for its evaluation.
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Answer:
Independent teams reviewing their work and arriving at the same conclusion
___________ are the central building blocks of the nervous system.
Answer:
neuron is the answer
Explanation:
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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Which of the following is not true concerning the Nereus? a. It is able to dive deeper than any other man-made vehicle. B. It will be used to explore previously unreachable areas of the ocean. C. It is a combination automated and remote-operated vehicle. D. It has the capacity to carry two crew members.
The statement which is not true is it has the capacity to carry two crew members.
The correct option is D.
What is the Nereus?The Nereus was the underwater vehicle built by the (WHOI).
It was the worlds' deepest diving vehicle.
It was lost one time in deep sea.
Furthermore, it was made to discover the deepest range of the ocean.
Thus, the correct option is D, It is able to dive deeper than any other man-made vehicle.
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Answer:
D
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
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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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! :)
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
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.