Answer:
A. the switch is incomplete
Explanation:
Select the answer that gives the correct order for these events:
A - Nuclear fusion happens in the core of a protostar to make new star.
B - The Big Bang takes place.
C - Ripples occur in the universe and move gases together.
Answer:
C,A,B
Explanation:
What are two reasons that populations will decrease?
Answer:
the drop in reproduction rate and coronavirus is killing people faster than expected
Explanation:
scientific reason bio biosphere reserve is a boon for plant and animals
The correct answer to this open question is the following.
The scientific reason biosphere reserve is a boon for plants and animals because this reserve is under the supervision of specialists, scientists, and environmentalists. This protected area includes a diversity of animals, plants, and nature that requires conservation on the part of humans to maintain the proper conditions of the reserve. These living things and organisms interrelate with all the environment and scientists try to restore and supervise the growing and developing of the species in the reserve for the good of all mankind.
What are the building blocks for DNA?
carbohydrates
O lipids
nucleotides
O proteins
Answer:
Nucleotides
Explanation:
A nucleotide is the basic building block of nucleic acids. RNA and DNA are polymers made of long chains of nucleotides. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
In an aquatic habitat it's important to monitor the levels of organisms such as dragon fly nymphs and leaches
due to the fact that they can be used to determine the effects of long and short term pollutants. HELPPPP it’s either true or false
Answer:
True
Explanation:
The given statement “In an aquatic habitat it's important to monitor the levels of organisms such as dragon fly nymphs and leachesdue to the fact that they can be used to determine the effects of long and short term pollutants” is true because they are considered bioindicators.
These organisms respond to the presence of pollutants, and their abundance and diversity can provide valuable information about the water quality. When certain pollutants are present in the water, the populations of these organisms may decline or show abnormal behavior, indicating the presence of short or long-term pollution effects.
Monitoring their levels and observing any changes over time can help identify pollution trends and assess the overall ecological health of the aquatic ecosystem. Dragonfly nymphs and leeches play a crucial role in the food chain of aquatic habitats. These organisms accumulate pollutants in their tissues, which magnifies the concentration of the contaminants as they move up the food chain.
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the tidal bulge on the Earth's follows the movement of the _________?
a. Moon
b. Sun
c. Earth
d. Jupiter
Answer:
A. moon
Explanation:
The Earth's tidal bulges track, or follow, the position of the moon, and to a lesser extent, the sun. As the angles of these two celestial bodies in relation to the Earth increase and decrease, so do the tidal bulges.
the first shell can hold a maximum of two electrons. How does this explain the valance of hydrogen? HELP ILL MARK BRAINLIEST
hydrogen has only the valence electron because it is in the first group, it has one valence electron and one valence. So the sum of hydrogen's number of valence electrons and valence is two
Why would your force of gravity increase if you went to a larger planet?
Answer:
because the gravity depends on the mass of object, if object is large or big it have more gravity than smaller one. As the large planet has large mass than small planets. So, force of gravity increases if we went to larger planet.
How do plants produce ATP?
A)they do not make ATP
B)in their chloroplasts
C)with the food they eat
D)with their mitochondria
Answer:
During photosynthesis a plant takes in water, carbon dioxide and light energy, and gives out glucose and oxygen. It takes light from the sun, carbon and oxygen atoms from the air and hydrogen from water to make energy molecules called ATP, which then build glucose molecules.
The amino acid substitution of Val for Glu in Hemoglobin S results in aggregation of the protein because of _____ interactions between molecules. covalent disulfide hydrogen bonding hydrophobic ionic
Answer:
hydrophobic interactions
Explanation:
Hemoglobin S (Hb S) is an abnormal type of hemoglobin where red blood cells become sickle-shaped and these elongated cells have difficulty to pass through small blood vessels. This type of hemoglobin is caused by a substitution (Glu>Val, GAG>GTG) in a β-globin gene variant. When the normal sequence is altered, a different amino acid is synthesized and it modifies the interactions between side chains by hydrophobic interactions, thereby affecting protein folding.
How did the hydrocarbons found in petroleum products such as gasoline get their energy ?
There are huge quantities of petroleum found under Earth's surface and in tar. Some experts predict peak oil could come as soon as 2050. Crude oil is composed of hydrocarbons, which are mainly hydrogen
Look at the two cells above (show to scale, one drawn in purple, the other dyed blue). Would you expect these two cells to have the same job in the body? Why or why not?
GREETINGS!
The above cell is neuron while the cell below it looks like part WBC family because it is Big Round and irregular in shape. No they could not do the same job because they are part of two different system of the human. Neuron is the part of nervous system while wbcs come under immune system
HOPE IT HELPS YOU!
According to the central dogma, what crucial step occurs in translation?
a. DNA is shuttled to the cytoplasm.
b. Ribosomes create DNA.
c. DNA is broken in preparation for transcription.
d. DNA is copied to RNA in the cell nucleus.
Answer:
d. DNA is copied to RNA in the cell nucleus.
Explanation:
In transcription, DNA is copied to the RNA, and the RNA is shuttled to the ribosome to give it instructions for making proteins in the translational step of gene expression.
According to the central dogma, a crucial step occurs in translation in which DNA is copied to RNA in the cell nucleus. Thus, the correct option is D.
What is the central dogma?
The central dogma of molecular biology theory which states that the genetic information flows only unidirectionally, from DNA, to RNA, to the protein, or RNA directly to protein.
The central dogma consists of three processes which are replication, transcription, and translation. The process by which new strands of DNA are synthesized is called replication. The process by which DNA is copied to RNA is called transcription, and process by which proteins are formed by RNA is called translation.
Therefore, the correct option is D.
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What is the best example of an
interaction among the biosphere, atmosphere,
and hydrosphere?
Answer:
What is the question please tell me
15. Laura and Stevie are conducting a science experiment to identify different kinds of macromolecules in food. They
prepare the following table to help them remember the chemical reactions that indicate the presence of each type of
macromolecule they're studying.
Substance Reaction
blue Benedict's solution turns green, yellow,
Sugar
or orange
Starch
brown iodine turns purple
Protein
blue Biuret solution turns pink or purple
Lipids
colorless Sudan stain turns red
Suppose that one of the substances they're testing turns bright red when they add a few drops of Sudan stain. What
is the basic molecular structure of the substance?
A glycerol combined with long chains of fatty acids
B strings of amino acids held together with peptide bonds
с short carbon chain or ring in which the ratio of carbon, hydrogen, and oxygen is 1.2.1
D polymer made up of many monosaccharides
Answer:
A. glycerol combined with long chains of fatty acids
Explanation:
Through which process could a large molecule such as protein EXIT the cholera cell?
—
A)diffusion
B)osmosis
C)exocytosis
D)endocytosis
Protein can exit a cholera cell through ; ( C ) exocytosis
Exocytosis is the process whereby secretory vesicles fuses with the plasma membrane and this leads to the discharge of the contents of the vesicle outside of the cell and into the extracellular fluid,
During Exocytosis large molecules like protein can exit a cholera cell because during exocytosis the contents of the cholera cell will be discharged outside the cell into the extracellular fluid.
Hence we can conclude that Protein can exit a cholera cell through ; ( C ) exocytosis.
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How was the moth cactoblastis cactorum used to help Australian ranchers? A B C D
The correct answer is A. Larva eat and kill invasive cactus.
Explanation:
The cactus moth, biologically known as Cactoblastis cactorum is a moth species mainly known for feeding on cacti. Indeed, the larvae of this species help decrease the population of certain cacti as they eat and kill cacti. Due to this, this species was taken from its natural habitat to areas such as Australia to help ranchers decrease the number of cacti. This was positive during the first yeats, but soon the species became invasive and nocive for other species because in this habitat there were no natural predators for the moth.
which molecule can form hydrogen bonds with others like
Answer:
Please mark as brainliest!!!!!
Explanation:
The attractive force between water molecules is a dipole interaction. The hydrogen atoms are bound to the highly electronegative oxygen atom (which also possesses two lone pair sets of electrons, making for a very polar bond. The partially positive hydrogen atom of one molecule is then attracted to the oxygen atom of a nearby water molecule
NEXT ONEE.
what is the reason for the different moon phases??
a. phases are caused by the visible part of the earth as it revolves around the moon.
b. phases are caused by the visible part of the moon as it revolves around the earth.
c. phases are caused by the visible part of the sun as it revolves around the moon.
d. phases are caused by the visible part of the sun as it revolves around the earth.
Answer:
vnjk vae
Explanation:
fbtrwnr
Answer:
B
Explanation:
Plz give brainlest
Students who are effective at project management put off working on assignments until the last minute. complete assignments effectively and on time. organize their time and have the best ideas. ask their friends to do their work for them.
Answer:
It's B
Explanation:
I took the test
The students who are effective at project management complete assignments effectively and on time.
What do you mean by Project management?Project management may be defined as the application of processes, methods, skills, knowledge, and experience to achieve specific project objectives.
Effective and punctual students always completed their projects and assignments on time. These qualities give confidence and willingness to do more.
Therefore, the students who are effective at project management complete assignments effectively and on time.
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Life is made up of different sized pieces that build on each other. Put these terms in order of smallest to largest.
Cells
Organism
Organs
Tissues
Organ system
Answer: cells, tissues, organs, organ system, organism
Explanation:
The body regulates excretion of which of the following wastes?
sweat
hormones
glucose
insulin
ANSWER IS SWEAT
Answer:
This person is in fact correct.
Why do you think the ideal communication style is assertive communication?
easy points 70
please search in google.
4. Describe what has to happen for a plant to convert the energy in sunlight into ATP
Answer:
During the process of photosynthesis,lights penetrates the cell and passes into the chloroplast. The light energy is intercepted by chlorophyll molecules on the granal stacks. Some of the light energy is converted to chemical energy. During this process, a phosphate is added to a molecule to cause the formation of ATP.
Explanation:
hope it helps...
Elijah notices a flower and sees that its color is yellow. Which of the following describes why Elijah sees this color of the flower? (SC.7.P.10.2)
A. The flower absorbs and reflects light.
B. The flower absorbs and refracts light.
C. The flower reflects and refracts light.
D. The flower refracts and blocks light.
If a cell in G1 has 40 chromosomes, then in G2 there will be _________ sister chromatids, and __________ chromosomes after mitosis.
Answer:
If a cell in G1 has 40 chromosomes, then in G2 there will be 80 sister chromatids, and 40 chromosomes after mitosis.
Explanation:
G1 is the first part of the cell cycle, in which the cell begins its new life. Different cells spend different amounts of time in G1, but when they reach the S phase they replicate their DNA to prepare for cell division. After phase S, comes phase G2, and then comes mitosis.
In this specific cell, there are 40 chromosomes in G1, and when the DNA replicates itself, there will still be 40 chromosomes, but these chromosomes will have two sister chromatids each, meaning that in phase G2 there will be 80 sister chromatids in total.
When the cell enters mitosis, the sister chromatids are separated and each one will go to one of the two cells that are generated because of this division. After mitosis, each daughter cell will have 40 chromosomes with only one chromatid each.
Since there are 40 chromosomes in G1, and when the DNA replicates itself in the S phase, there will still be 40 chromosomes, but these chromosomes will have two sister chromatids each in the G2 phase which means there will be 80 sister chromatids. If a cell in G1 has 40 chromosomes, then in G2 there will be 80 sister chromatids, and 40 chromosomes after mitosis.
What are the different phases of the cell cycle?The cell cycle is the series of events that take place in a cell leading to its maturity and division. The cell cycle consists of four discrete phases: G1, S, G2, and M. G1 is the stage where the cell is preparing to divide. In the S phase where the cell copies all the DNA. S stands for DNA synthesis. G2 where organizes and condenses the genetic material and prepares to divide. M phase is the mitosis phase, where the cell divides into two daughter cells.
Hence, If a cell in G1 has 40 chromosomes, then in G2 there will be 80 sister chromatids, and 40 chromosomes after mitosis.
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why is astronomy referred to as observational science and not primarily experimental science
Astronomy is referred to as observational science and not primarily experimental science because it focuses on the acquisition of data from observations of astronomical objects.
When this data are acquired,they undergo analysis and using basic principles of physics.
Unlike experimental Science which seems to build knowledge through directly observing and measuring of objects and phenomenon by scientists.
A good understanding of experimentation is important here.
Genetic variation occurs through genetic recombination.
2 different methods of genetic recombination are illustrated. In the first method, Upper A Upper A, aa, Upper B Upper B, b b form Upper A Upper A, Upper B Upper B, a a, and b b. These then go on to form Upper A Upper B, Upper A Upper B, a b, a b. In the second method, Upper A Upper A, a a, Upper B Upper B, b b form Upper A Upper A, Upper B Upper B, a a, and b b. These then go to form Upper A b, Upper A b, a Upper B, a Upper B.
Which method of genetic recombination is illustrated in the diagram?
Answer:
Answer is A
Explanation:
Independent assortment
Answer:
A
Explanation:
Why are linked traits inconsistent with Mendel’s laws?
A Epistasis causes traits to be inherited together. This is not consistent with Mendel’s law of independent assortment.
B Linked traits are unlikely to be inherited together. This is not consistent with Mendel’s law of segregation.
C Linked traits are likely to be inherited together. This is not consistent with Mendel’s law of independent assortment.
D Epistasis causes traits to be inherited together. This is consistent with Mendel’s law of segregation.
Answer: b Linked traits are unlikely to be inherited together. This is not consistent with Mendel’s law of segregation.
:)
Answer:
linked traits are likely to be inherited together. this is not consistent with mendel's law of independent assortment.
Explanation:
Why does a good cook wait until just before serving to put salad dressing on lettuce?
Answer:
So the lettuce leaves don’t get soggy
Explanation:
The dressing contains salt, which will draw out moisture from the lettuce and make it soggy.
