Answer:
Covering glass E with plastic wrap prevents oxygen from entering the glass so Jared can test whether anaerobic respiration occurs.
Explanation:
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Respiration is the process of inhaling oxygen and exhaling carbon dioxide. Covering a glass prevents the oxygen to enter and can use to test anaerobic respiration. Thus, options 1. a and 2. b are correct.
What is anaerobic respiration?Anaerobic respiration is a process that uses electron acceptors to produce energy by breaking glucose or other sugar molecules. Unlike aerobic respiration, it lacks the use of oxygen for metabolic reactions.
This occurs in the absence of oxygen and occurs in the cytoplasm with the help of oxidizing substances like nitrate, fumarate, sulfate, etc. to produce less ATP compared to aerobic reactions of respiration.
Therefore, covering a glass prevents the entry of oxygen and can be used to observe the anaerobic respiration by some microbes.
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What data provides the strongest evidence (most valid) that early Earth conditions provided what was necessary for life?
A- Fossil evidence showing that prokaryotic cells required an environment free of oxygen.
B- Genetic comparisons revealing that living and extinct organisms share commonalities.
C- Geological dating techniques supporting theories regarding Earth's age.
D- Geological studies proving that volcanic gases resemble those from early Earth.
Answer:
A - Fossil Evidence showing that prokaryotic cells required an environment free of oxygen.
Explanation:
Thanks OP for answering your own question!
The data that provides the strongest evidence (that is, the most valid evidence) that early Earth conditions provided what was necessary for life is revealed by genetic comparisons, which reveal that living and extinct organisms share commonalities. This is option B.
What are genetic comparisons in evolution?Genetic comparisons are the most direct and reliable source of evidence supporting the theory of common ancestry and the origin of life on Earth. All living organisms share a common set of genetic building blocks, such as DNA and RNA, and use the same genetic code to translate this information into the proteins that make up living organisms. Genetic comparisons reveal similarities between living organisms and extinct organisms, such as ancient bacteria and archaea, which provides further evidence for the common ancestry of all life on Earth.
Hence, it is revealed by genetic comparisons, which reveal that living and extinct organisms share commonalities. This is option B.
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Where does a clinical trial usually take place?
O A. In a hospital
B. In a test tube
c. In a placebo
D. In a petri dish
Nabeel is trying to determine whether the slope of the ground affects the growth rates of plants. He just finished taking measurements of plant heights in various locations over a period of time. Now, he is starting to compare his measurements and look for patterns. Which step of the scientific method is Nabeel on?
Answer:
Experiment
Explanation:
Scientific methods includes the step by step procedures in science of solving problems.
It has four basic steps this include, Characterizations which is the observations, definitions, and measurements of the subject that is involved in the research.
Hypotheses is formulated which is the theoretical explanations of the problems to be solved.
Predictions are made from the hypothesis formulated and
Experiments which is done to validate the hypothesis. It includes DAT collection, data analysis, interpretation of results. Nabeel is at the experiment stage where he is collecting data on plant and comparing the data so he can make inference that can help validate his hypothesis.
The diagram for this question is missing, but I'll try to solve it nonetheless, for PLATO users. I do believe the answer is Test the hypothesis with an investigation, at least when thinking of the guy up above me's answer....
Why are dark colored pocket mice found in the dark, rocky areas of the desert?
their fur is that color so they can camoflaugue with their surroundings
Answer:
Because God put them there on purpose. For example, they could hide in little tunnels in the ground to hide from predators, and also, so it could camoflauge with it's surroundings. Have a great day!
Explanation:
(:
Look at the map above. what type of weather is the northwest having?
Explain mendel's experiment with peas on inheritence of characters considering only one visible contrasting character.
Ples answer in making points, it is for 5 marks.
➜ Mendel conducted breeding experiments with garden peas:
[i] He studied plants (pure) of a tall/short varities.
[ii] He crossed them and obtained F1 progeny.
[iii] He found that F1 progeny was all tall plants.
[iv] He selfed the (hybrid) plants if F1 progeny.
[v] He found that in F2 progeny there were tall as well as short plants.
[vi] The three quarter plants were tall and one quarter was short.
(or any other contrasting character may be taken).
Note: Here, F1 means First fillial generation and F2 means Second fillial generation.
Mendel selected garden pea for his breeding experiment because of its contrasting characters such as height of the plant, yellow or green seed, round or wrinkled seed shape. ... Then he allowed the hybrid plants of F1 generation to self-pollinated. In F2 generation all the progeny were tall as well as short plants...We used to take this character, we may choose different.
which team did springbok starting playing with in 2019
Which step in the process of cellular respiration produces the most ATP?
glycolysis
citric acid cycle
electron transport chain and oxidative phosphorylation
fermentation
Answer:
c. electron transport chain and oxidative phosphorylation
Explanation:
The image, in which A represents a gene, shows a harmless mutation that has occurred in a species' genome. Which is the most
plausible way that this mutation may eventually benefit the species?
A)
Multiple copies of genes increase gene expression and protein synthesis,
improving fitness
B) One copy of the gene may mutate further and begin to function differently
from the original.
C) Individuals with different copy numbers of the gene will not be able to
mate, resulting in speciation.
D) Individuals with the mutation are not able to produce offspring and will be removed from the gene pool.
Answer:B
Explanation: I took this test
One copy of the gene may mutate further and begin to function differently from the original is the most plausible way that this mutation may eventually benefit the species.
What is Mutation?A mutation is a change to an organism's Genetic sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can.
Our cells constantly undergo mutations, yet surprisingly few of these have an adverse impact on our health. A mutation is never so advantageous in real life.
Therefore, One copy of the gene may mutate further and begin to function differently from the original is the most plausible way that this mutation may eventually benefit the species.
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A cell with only one set of chromosomes is called [ diploid or haploid ] cell.
Answer:
A cell with only one set of chromosomes is called a haploid cell.
True or false: autosomes are sex chromosomes
Answer:
True is your answer
Explanation:
An autosome is any of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (the X and Y). ... That is, Chromosome 1 has approximately 2,800 genes, while chromosome 22 has approximately 750 genes
Answer:
Its true!
Explaination:
PLEASE HELP!!
Why is the ozone layer important to living organisms on Earth?
helps remove harmful nitrogen and sulfur compounds from the atmosphere
helps filter infrared radiation harmful to plants and animals
helps filter out ultraviolet radiation harmful to plants and animals
provides protection from solar radiation that warms the atmosphere
Answer:
helps filter out ultraviolet radiation harmful to plants and animals
c) Describe the phenotype ratio for their offspring. (2 points)
Which of the following is most helpful for identifying an organism using a dichotomous key?
O Its average lifespan.
0 Its sources of food.
O Its habitat.
O Its physical structures.
Can someone help me with this?
Answer:
the last option is the answer
which of the following is true of reproduction? A.only small organisms have a high chance to reproduce B.only large organisms have a high chance to reproduce C.all genes that are beneficial are passed On to the Next Generation. D. on average the fittest organisms fast on jeans the Next Generation.
Answer:
D
Explanation:
Lungs in humans and many other species branch out into many tubes until they end in small sacks called alveoli. These alveoli allow oxygen to enter the blood through the capillary beds as pictured above. Alveoli provide much more surface area for the lungs to contact the capillary beds. What is the advantage of lungs with alveoli compared to lungs without alveoli?
Answer:
It provides more surface area for the absorption of oxygen.
Explanation:
The advantage of lungs with alveoli compared to lungs without alveoli is the availability of large surface area for the oxygen absorption. Alveoli allows oxygen from the air to pass into your blood. There are 480 million alveoli are present in human lungs, this large number and small size of alveoli provides lungs a large surface area to volume ratio so we can conclude that the lungs work better with the help of alveoli as instead of lungs without alveoli.
Millicent encountered this organism while walking in the forest. It grows on dead trees, consuming the detritus left by other decomposers. What term best describes this organism?:
A
saprotroph
B
detritivore
C
predator
D
scavenger
MULTIPLE CHOICE
Answer:
A. Saprotroph
Explanation:
A saprotroph is described as an organism that gains nourishment from organic matter that has started to decay.
As per the situation, the organism that grows on dead trees, consuming the detritus left by another decomposer are saprotroph.
What is a saprotroph?
Saprotroph, also called saprophyte or saprobe, are organism that grazes on the nonliving organic matter known as debris at a microscopic level.
Bacteria, fungi, etc are examples of saprotrophs.
Thus, option "A" saprotroph.
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Ok plz help I have this project and it’s already a day overdue but I spend over an hour searching this so if u know plz tell me ok so I need an example of each type of stimuli. The kinds are chemical, mechanical, and thermal
ALSO 50 POINTS AND BRAINLIEST IF YOU ANSWER
Answer:
three types of stimuli—mechanical, thermal, and chemical; some endings respond primarily to one type of stimulation, whereas other endings can detect all types. Chemical substances produced by the body that excite pain receptors include bradykinin, serotonin, and histamine.
Explanation:
Which statement best compares gamma rays to the other components of the
electromagnetic spectrum?
Gamma rays have the lowest frequency and least energy.
Gamma rays have the highest frequency and least energy.
Gamma rays have the lowest frequency and greatest energy.
Gamma rays have the highest frequency and greatest energy.
Answer: c
Explanation:
____________The following codon belongs to an mRNA molecule: TAC.
True
False
Answer:
true
Explanation:
because the TAC does in fact belong to an mRNA molecule
Which of the following is not an appropriate unit for momentum?
A. g • cm/min
B. g • m/S
C. km • m/S
D. kg • m/hr
Answer:
Option C us correct.
km • m/S
Explanation:
This is because momentum is result of mass and velocity of an object. Momentum is a vector quantity that is it has magnitude and it's direction is in form of three dimensional.
From the option C, kilometer there is not a unit for mass or velocity it it is a unit for distance, therefore it is incorrect.
What role did the Yam play in the expansion of the Mongol Empire?
Answer:
The yam was the cornerstone of Mongol administration and allowed the Great Khan to run one of the largest empires in history.
Explanation:
Answer:
The yam was the cornerstone of Mongol administration and allowed the Great Khan to run one of the largest empires in history.
Explanation:
that is your answer, have a great day!
According to Darwin's theory of evolution, what causes a struggle for survival in
populations?
Answer:
In a population, more individuals are born than can survive. The available resources in nature are finite (food, water, space, etc.) and the environment is not able to support unlimited growth of a population. This causes an inevitable struggle for existence among individuals (continual struggle for existence).
Explanation:
Fluorine, chlorine, bromine, iodine, and astatine make up group 17, the halogens. Why are these elements grouped together?
A They are all very reactive nonmetals with similar chemical properties.
B They are all nonreactive gases with similar physical properties.
C Their atoms all have 8 electrons in their outer energy levels.
D They all have the same atomic number.
Answer:
It is A, They are all very reactive nonmetals with similar chemical properties.
please please please help me on me I need it ASAP
does anyone know the answer to this?
Answer:
hello! it is A.
Explanation:
during mitosis the cell divides into two identical daughter cells!
2. Explain the relationship between genetic variation and an organism's ability to adapt to its environment,
6. What essential substances are stored by your bones
(1 Point)
Phosphorus
Calcium
red blood cells
O white blood cells
What is used to regulate gas intake and output with a plant?
Answer-
The plants stomata!
Stomata regulate transpiration and CO2 intake by changing its size depending on the environmental signals. In optimum conditions, stomata are wide open, allowing gaseous exchange with the atmosphere.