Kim knows that today’s lab investigation will involve heating liquids over an open flame. Which apparel choice would indicate that Kim planned to stay safe during the investigation
Answer:
Apron, gloves, closed toe shoes, goggles. Kim should also tie long hair back if she has it and should roll long sleeves up.
Explanation:
Aprons, closed toe shoes, and goggles will prevent any of the liquid being heated from burning and harming her skin or eyes.
Gloves are needed to protect her hands from heat and the liquid as well.
Long hair should be tied back to prevent it from being burned or harmed from the liquid, and long sleeves need to be rolled up to prevent them from being caught on fire or dragging into the liquid.
Answer:
a lab coat with long sleeves
Explanation:
i just took the test
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What do proteins, nucleic acids, and carbohydrates all have in common?
A. They all use peptide bonds to form macromolecules.
B. They all contain the instructions for building organisms.
C. They are all formed from the same elements.
D. They are all made of chains of amino acids.
The common feature between proteins, nucleic acids and carbohydrates is ; ( C ) They are all formed from the same elements.
Nucleic acids are present in the DNA or RNA of cells of living organisms. they practically store genetic information and they are made up of long chains of nucleotides.
Carbohydrates, nucleic acid and proteins are are made up same elements which are ; carbon , oxygen and hydrogen that are combined in several ways in each of the compound.
Hence we can conclude that the common feature between proteins, nucleic acids and carbohydrates is they are all formed from the same elements.
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Proteins, nucleic acids, and carbohydrates all have in common that they are all formed from the same elements. The correct option is C.
Carbon, hydrogen, oxygen, nitrogen, and, in the case of nucleic acids, phosphorus, are the same components that go into the formation of proteins, nucleic acids, and carbohydrates.
These substances make up the fundamental constituents of organic compounds.
The building blocks of proteins are amino acids, the building blocks of nucleic acids are nucleotides, and the building blocks of carbohydrates are simple sugars (monosaccharides).
These macromolecules all have the same elements, but having diverse forms and roles, highlighting the essential roles of carbon, hydrogen, oxygen, nitrogen, and phosphorus in biological molecules.
Thus, the correct option is C.
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what is the meaning of humidity
Answer:
Explanation:
The concentration of the water vapour present in the air
which of these forms when moves in the directions shown by the arrows in the diagram
Answer:
A. Mountain breeze
Pls give 5 stars and thanks!
Answer:
a
Explanation:
How does the chemical reactivity of an unstable isotope compare with that of a stable isotope?
Answer:
The difference between a stable isotope and an unstable isotope
A "stable isotope" is any of two or more forms of an element whos nuclei contains the same number of protons and electrons, but a different number of neutrons. Stable isotopes remain unchanged indefinitely, but "unstable" (radioactive) isotopes undergo spontaneous disintegration.
Explanation:
hope it helps!
right auricle is bigger than left auricle why
Explanation:
Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.
FALLING OF STONE
○ FAST CHANGE
○NATURAL DESIRABLE CHANGE
○NATURAL UNDESIRABLE CHANGE
○SLOW CHANGE
Answer:
answer is fast change due to free fall of object in air.
Which among the following controls the
cell's behavior?
Answer:
The nucleus controls the cell's behaviour.
Identify the characteristic that allows the cell membrane to regulate which substances enter and exit the cell. nonpolar selectively fluid selectively permeable flexible
Explanation:
The answer is that all cells are "semi-permeable,"
this allows cells to take in only the nutrients needed...
A scientist has discovered a new plant species in the Amazon rainforest she tells her fellow scientist at the Playhouse she has found for Tuesday is a cone for my side about this plan is different from an organism
Answer:
It is a seeded vascular plant.
It does not depend on insect pollination.
Explanation:
The complete question is: A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant.
The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.
Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.
Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.
(1) What will be the frequency of the recessive allele in a population of 100 kangaroos if there are 50 dominant alleles?
a. 150
b. 0.75
c. 0.50
d. 0.25
(2) If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next generation if the population is in Hardy-Weinberg equilibrium.
a. 0.42
b. 0.21
c. 0.70
d. 0.30
Answer:
1. Option c
2. Option a
Explanation:
1. If there are 50 dominant alleles, this represent the frequency of dominant alleles p = 50/100 = 0.5
Using the formula p+q = 1 we can solve for the frequency of the recessive alleles q = 1 -0.5 = 0.5 = 50%.
2. the frequency of the recessive allele for a gene is 0.3 which is q = 0.3
From the Formula p + q = 1 we can solve for p the frequency of the dominant alleles = 1 - 0.3 = 0.7
To calculate for the number of heterozygotes, we use 2pq = 2 x 0.7 x 0.3 = 0.42
What are immunoglobulins?
Answer:
Immunoglobulin, is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
Jezelyn needs to create a project that shows geographic isolation in action and decides to make a video. Which of the following would make the best project?
Answer:
a video that shows penguin species that have different mating dances
Explanation:
The question is incomplete as it does not have the options which are:
a video that shows a large river that has penguin populations on both sidesa video that shows penguin species that have different mating dancesa video that shows a penguin that is laying eggsa video that shows penguins in a tidal pool and an open oceanAnswer:
a video that shows penguin species that have different mating dances
The reproductive isolation is the factor which allows the species to evolve and form a new species, therefore, this factor is used to describe a species.
The reproductive isolation refers to a mechanism in which the species are isolated to not interbreed with the individual of other species. The reproductive isolation could be due to behavioural, psychological, physical or genetic differences. evolved as an adaptation.
In the given cases, the penguin species which shows different mating dances is considered to be reproductively isolated as the different dance rituals evolved as behaviour to prevent them from mating.
Thus, the selected option is correct.
A video that shows a large river that has penguin populations on both sides would make the best project. So, the correct option is A.
What is Population?A population is defined as the complete set of individuals, whether that group includes a nation or a group of people with a common characteristic which is the pool of individuals from which a statistical sample is drawn for a study. .
It is described as a unit of biological community made up of a permanent group of an interbreeding individual of a species found in a space or geographic region at a particular time. Population are of three types of population pyramids created from age-sex distributions-- expansive, constrictive and stationary.
Thus, a video that shows a large river that has penguin populations on both sides would make the best project. So, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Jezelyn needs to create a project that shows geographic isolation in action and decides to make a video. Which of the following would make the best project?
a video that shows a large river that has penguin populations on both sidesa video that shows penguin species that have different mating dancesa video that shows a penguin that is laying eggsa video that shows penguins in a tidal pool and an open ocean23. Which activity most directly involves the
process represented in the diagram below?
1. a gamete produced in meiosis
2. a white blood cell engulfing bacteria
3. a zygote being produced in an testes
4. a human repairing damaged tissue
a gamete produced in meiosis is the correct answer .
What is meiosis ?Meiosis is the process where a single cell divides twice to produce four four haploid daughter cells which are otherwise called as gametes; It can occur in two substages such as meiosis I and meiosis II.
Humans have 46 chromosomes in every cell, where 23 chromosomes t came from one of our parents and 23 very similar chromosomes that came from the other parents.
Meiosis I consist of substages like Prophase I where nuclear envelope disintegrates, Chromosomes begin to condense, Spindle fibres appear.
Secondly Prometaphase I where Spindle fibres attach to the centromere followed by Metaphase I where The homologous chromosomes align at the equatorial plate, Anaphase I where he homologous chromosomes move towards the opposite poles.
Telophase I where Spindle fibres disappear, Cytokinesis I where the cytoplasm and the cell division result in 2 non-identical haploid daughter cells.
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The sun is located at one of the two___ in the shape of earth’s orbital path.
Answer:
foci
Explanation:
Which list shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex?
Answer:
cell, tissue, organ, organ system, organism
Explanation:
organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell cell, tissue, organ system, organ, organism cell, tissue, organ, organ system, organismI took the test and got it right on ed ...
cell, tissue, organ, organ system, organism shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex.
what is the level of organization in an organism ?
Cellular organization is one of the characteristics of a living organism which states that each living organism is made up of a single cell or more than one cell.
It is made up of various components such as chemicals like micro molecule that form the macro molecule, at chemical level the structural composition are organized together to make cells
At Cellular level of organization form the tissue and it is complex to cell but simpler to organ which makeup of various together.
The cluster of interacting organs is necessary as the organ which are the structural level that individuals do the specific function.
Organs are gather together form organ system and it is a complex system made up of organs that are similar in their function.
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Hornworts have only one _______ in each of their cells.
A. membrane
B. ribosome
C. chloroplast
Answer:
C
Explanation:
Hornworts has only one chloroplast
Explain how this experiment disproves the theory of spontaneous generation.
Answer:
The theory of spontaneous generation suggested that the living organisms can come from inanimate objects, however, it is an obsolete theory that is disproved by many experiments. The very first experiment that disapproved it was the experiment by Francesco Redi in 1668.
He demonstrated that maggots come from the eggs of flies instead of rotting meat. He placed raw meat inside of every jar. Half the jars he left open and the other half, he covered with mesh. In open jars, he found maggots after some time but covered jars have no maggots. That proved that the maggots come from eggs of flies rather than rotten meat.
The presence of flies on the meat is responsible for the production of maggots in meat.
This experiment disproves the theory of spontaneous generation because maggots are produced from the flies not the rotten meat. According to spontaneous generation, living organisms are formed or develop from nonliving matter.
So by performing this experiment we can see that maggots are formed when the flies feed on the rotten meat otherwise no maggots are present if the flies are not present there so that's why we can conclude that this experiment rejects the theory of spontaneous generation.
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Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, causing the accumulation of toxic substances in the cell and ultimately, cell death. What would be the most likely explanation as to why the lysosomes of someone with this disease are not functioning properly?
A. The enzymes of the lysosome are beginning to break down the DNA of the cell.
B. The enzymes of the lysosome are not breaking down enough toxic material.
C. The enzymes of the lysosome are breaking down too much toxic material.
D. The enzymes of the lysosome are beginning to break down the ribosomes of the cell.
Answer: The enzymes of the lysosome are not breaking down enough toxic material.
Explanation:
Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
What is the significance of lysosomal storage diseases?Lysosomes are cell organelles that accumulate the cell's toxins or those that enter the cell from the outside (some bacterial particles, for example) and are broken down by the acidic pH of the lysosomes and the enzymes to keep the cell functioning properly. In the case of this disease, it does not work and damages the cell.
Hence, lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
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why would CH not form as a result of carbon's interactions with other elements? A:Carbon normally has two covalent bonds. B:Carbon normally has four covalent bonds. C:Carbon cannot bond with hydrogen only.
Answer:
B
Explanation:
Ms,Biswas made me do this mate (PAIN)
Answer:
B - Carbon normally has four covalent bonds.
Explanation:
what are 4 effects of global climate change
Answer:
I think I can help you.
Explanation:
I think I can help you.
answer
the 4 effects of global climate change are as follow:
1.due to more factories.
2.due to pollution.
3.due to air pollution.
4.due to water pollution.
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can one of y'all pick a body of water for me please? It can be any lake, river, bay, whatever. Please pick one that's easy to research biology questions like salinity and how the sun affects the species living in it. this is so I don't fail biology but I am anyways hahahahahahahahahaha please help me...
Answer:
Mississippi River.
Explanation:
Answer:
lake tahoe, calabazas creek... etc
True or False: Population size influences the chances of a species surviving or going extinct, and smaller populations are more likely to go extinct.
Answer:
True
Explanation:
In my opinion it makes sense
This event occurs in lakes every year. Which season(s) does this event
occur in ?
1 point
Answer:
Lake turnover occurs during the spring season.
Explanation:
There is too much wind.
The soft and green stems found in flowers are called:
Answer:
sepals aka calyx
Explanation:
sapelis lowest part on flowers which covers the flower and from which pedicel is produced.
Which of the following Venn diagrams would BEST be suited to represent the three categories of animals?
Answer:
intersecting circle and the universal affarmative
Explanation:
Which Punnet square allows for the possibility that Tom and Alices children have attached earlobes?
Answer:It is the second one
Explanation:Due to the second punnet square featuring the ee combination, they can have attached earlobes. Recessive traits have to be ee(both recessive), and as a capital E (dominant trait) would override the recessive trait, only the second square allows for attached earlobes
If we are in a pool submerged in water and someone shouts from outside, do we hear the sound? What happens on your tour? What phenomenon occurs?
Please help. I will mark you as brainliest and give you points :)
Answer:
A hummingbird feeding: Mutualism
Explain Interaction: The hummingbird drinks the nectar from the flower and the hummingbird may help pollinate the flower.
I'm a bit confused by the plants on the floor one.
Plants on a Forest Floor: Competition
Explain Interaction: The plants on the forests floor compete with each other for the same resources. Both may not receive enough of those resources. Note: When I was around Middle School and High-school I was only taught mutualism, commensalism, and parasitism, so let me know if competition is not a choice your teacher gives you to choose from or wasn't taught to you
Flea bites human: Parasitism
Explain Interaction: The flea drinks the persons blood as food and the person is hurt. Flea bites can be itchy and become painful. Fleas may also also carry disease.
Clownfish in Anemone: Mutualism (although I hear some people say commensalism)
Explain Interaction: The anemone provides protection and a place to live for the clownfish. The anemone may eat bits of food left over from the clownfish.