A solar eclipse occurs when the moon
1. passes into the penumbra of earth
2. passes into the umbra of earth
3. passes at a slight tilt between Earth and the sun
4. passes directly between Earth and the sun
Consider the diagram of the basic structure of a bacterium. A diagram of a bacterium is labeled. Part A is the cell membrane, part B is the flagellum, part C is the nucleoid, and part D is the pilus. Which of the labeled structures in the image allows bacteria to exchange genetic material and thus evolve to be better pathogens?
Answer:
Part D: pilus
Explanation:
Conjugative pili allow for the transfer of DNA between bacteria and thus evolve to be better pathogens.
The structure in bacteria that allows them to exchange genetic material and evolve is the pili
Bacteria piliPili (pilus, singular) are thin, proteinous structures located on the surface of bacteria that serves as:
they help bacterial cells to attach to surfacesthey serve as channels for the transfer of genetic materials during conjugationWhen genetic materials are transferred through the pilus, gene recombination occurs and bacteria evolve as a result.
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The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:Multicellular and Eukaryotic are traits that can be true for every Kingdom past Protists on this branching tree diagram. These are the traits which were evolved that Protists just missed, plants and fungi got these traits and transferred them to their descent as well.
Explanation:
Show different life cycle patterns with the help of near labelled diagram
Answer:
The life cycles of all sexually reproducing plants follow a pattern of alternation between a haploid, sexual generation called gametophyte with a diploid, asexual generation called sporophyte.
This phenomenon of alternation between gametophyte (n) and sporophyte (2n) in the life cycle of a plant is called alternation of generations (Hofmeister, 1851).
Alternation of generations is of two types- isomorphic and heteromorphy. In isomorphic (or homologous) type both the alternating generations are morphologically similar, while in heteromophic (or heterologous) type of alternation of generations both the generations of life cycle are morphologically dissimilar.
Explanation:
environmental pressure definition
Environmental pressure, also known as selection pressure or ecological pressure, refers to the influence exerted by the environment on living organisms, driving the process of natural selection.
It encompasses various factors, such as climate, competition for resources, predation, and other ecological interactions.
Environmental pressure plays a pivotal role in shaping the characteristics and traits of organisms within a population.
Individuals possessing advantageous traits that align with the environmental conditions are more likely to survive, reproduce, and pass on these beneficial traits to the next generation.
Over time, this process leads to the adaptation and evolution of species, enhancing their ability to thrive and succeed in their specific ecological niches.
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Gravity is an example of which kind of force??
A) contact
B) noncontact
C) speed
D) direction
Answer:
I want to say B. Noncontact
Explanation:
I hope this helps!
Answer:
b
Explanation:
8. For what purpose do the characteristics of ATP make it exceptionally useful to all types of
cells?
Answer:
The energy from ATP is needed for many cellular activities, including active transport across cell membranes, protein synthesis and muscle contraction. ATP's characteristics make it exceptionally useful as the basic energy source of all cells.
Explanation:
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Answer:
first option for the first question and second option for the second question.
Explanation:
Consider the generalized cladogram of fish.
A cladogram is shown. At point B, the organism shares jaws but not bones.
A fossilized fish is found that has jaws but no true bones. Where does this fossil belong on the cladogram?
A
B
C
D
Answer:
A
Explanation:
Answer:
D
Explanation:
yes
When you make chocolate milk, milk is the __, and the chocolate powder is the __ the mixture is now called a __.
a. solute, solvent, solution.
b. solution, solvent, solute.
c. solvent, solution, solute.
d. solvent, solute, solution.
Answer:
I think it's A but im not sure?
Answer:
D. Solvent, Solute, Solution
Explanation:
When you make chocolate milk, milk is the solvent, and the chocolate powder is the solute the mixture in now called a solution.
A mutation in the code for a trait may not always change the expression of that trait. What advantage does this provide cells?
1)Ribosomes can produce proteins more quickly.
2)Cells only need to make a limited number of proteins.
3)Proteins can switch tasks without a change in the DNA sequence.
4)Some changes in the DNA sequence will produce the same proteins.
Answer:
ribosomes can produce proteins more quickly
I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee
!(points given)!
Which mRNA sequence complements the DNA sequence below?
The right half of a D N A molecule
Four m R N A molecules
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answer:
sequence c
Explanation:
i just took the biology learning gizmo five questions
Transcription is the process of mRNA synthesis. It occurs in the nucleus before translation. During transcription, RNA bases pair DNA bases, replacing Thymine with Uracyl. You will find the example in the explanation.
Note: The DNA sequence is missing, so I will provide a new sequence and explain the procedure. I suggest you perform the same steps with your molecule fragment and reach the correct mRNA.
Protein synthesisProteins synthesis is done in two stages: transcription and translation. The whole process begins in the nucleus and finishes in the cytoplasm.Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA. Once the new molecule is completed, it is sent to its final destiny.Transcription:The first step before protein arrangement is to synthesize messenger RNA, mRNA. This is the transcription process and occurs in the nucleus. When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand. The coding strand goes in direction 5' to 3', while the complementary strand -template strand- grows in direction 3' to 5'. This last segment is the one that is going to be complemented by the mRNA. It is the template strand. A template DNI strand is read in direction 3'→ 5' to build the mRNA molecule that grows in direction 5'→ 3'.During transcription bases forms pairs. RNA replaces Thymine with Uracyl, so pairs are as follows,DNA mRNA
Adenine pairs Uracyl, Thymine pairs Adenine, Guanine pair Cytosine, Cytosine pair Guanine.Translation:
Translation occurs in the cytoplasm. During translation, rRNA reads mRNA in 5' to 3' direction, and tRNA adds the correct amino acid to the growing chain. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.ExampleWe will consider for this example the following DNA template strand.
DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
Transcription
template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
The new mRNA strand is
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
Once the mRNA synthesis is over, the molecule leaves the nucleus and proceeds with translation in the cytoplasm.
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Emma lives in Wisconsin and wants to plant geraniums in her yard. The average daily temperature in her area is 21°C (70°F) and the nighttime temperatures are averaging 18°C (65°F). The area where she would plant the geraniums gets full sun all day. Would you suggest she plant her geraniums? Why or why not?
Answer:
Please mark brainliest
Explanation:
Yes, because geraniums live on land that has a temperature of 65 degrees F and 70 degrees F.
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Explain how a symbiotic relationship like the one described in the endosymbiotic theory would have benefited each cell.
Answer:
cannot grow outside their host cell of biolapsy
The symbiotic relationship is a type of relationship in which two organisms living with each other and gives benefit to one another.
Mutualism is a type of symbiotic relationship in which both organisms benefited from one another. In this type of relationship, one organisms is smaller that lives inside the body of other big organisms.
For example, bacteria lives in the nodules of plant's root. The plant provides shelter to the bacteria while on the other hand, bacteria fixes atmosphere nitrogen into available form so in this way both get benefits from one another.
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22. Why do you think the sea urchin was chosen to test the effect of changes in pH?
Answer:
as it settles deeper underwater ph tends to be higher and a sea urchin tends to be more resilient to change
Acidic seawater, at current pH levels found in the world's oceans, can have a negative impact on sea urchin larval development so it is taken to test the effect of changes in pH.
What is sea urchin?Sea urchins are spiny, globular echinoderms of the Echinoidea class. The urchins were able to compensate for internal pH in modest acidification (pH 7.8) and not in higher acidification (pH 7.6).
The pH of coelomic fluid was lower at higher temperatures.
Thus, due to this, the sea urchin was chosen to test the effect of changes in pH.
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Mr. Andrews has a blood cancer that causes his blood not to clot. Which component of the blood is affected by his cancer.
Which of the choices below gives the best "big picture" snapshot of what is happening in the body?
Question 10 options:
Specialized cells have specialized DNA that allows them to produce specialized proteins needed by an individual cell
The brain sends mRNA as a messenger to specific cells telling them to send proteins to copy DNA from the ribosomes so other cells can get a copy of those genes.
Every cell in the body contains the entire DNA genome. Specialized cells turn on specific genes to make specific proteins, which are then released for use throughout the body.
Answer:
that last one
Explanation:
*
What kinds of organisms use anaerobic respiration?
Answer:
Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration.
Explanation:
For example, the group of Archaea called methanogens reduces carbon dioxide to methane to oxidize NADH. These microorganisms are found in soil and in the digestive tracts of ruminants, such as cows and sheep.
Based on the data provided, which of the following descriptions best identifies the types of
farms that are being compared?
Select one:
O a. Farm A is a free pasture farm for cattle, whereas Farm B is a free-range farm for poultry.
O b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.
O c. Farm A is a grass-fed pasture for beef production, whereas Farm B is a traditional
concentrated animal feedlot for cattle.
ction, whereas Farm B is a cage
O d. Farm A is a concentrated animal feedlot for beef
free farm for poultry.
Answer:
b. Farm A is a cage-free farm for poultry, whereas Farm B is an industrial poultry farm.
Explanation: the average days in any 12-month period suggest that farm b cages while farm a does not. The antibiotic usages for farm b also suggest it is an industrial (caged) farm because most cage-free and non-industrial farms do not rely on heavy use of antibodies.
The Farm A is a cage-free poultry farm while Farm B is an industrial poultry farm.
Farm A:
The caged day are zero means all birds can move freely in the farm area.They are not eat antibiotics to avoid infection.Farm B:
Most of the time in year, birds are caged. They fed antibiotic to all to avoid infection in the cage.Therefore, the Farm A is a cage-free poultry farm while Farm B is an industrial poultry farm.
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Which is the third stage of mitosis? (3 points)
Anaphase
Interphase
Metaphase
Telophase
Oxygen is transported by _____to the_____ where it is used to break down the ______ into water, carbon dioxide, and usable energy.
cells
heart
sugar
blood
organisms are classified as either prokaryotes and eukaryotes.which of the following do the cells of all prokaryotes and eukaryotes contain?
Answer:
Prokaryotes contains a single chromosome and DNA whereas eukaryotes contain true nucleus and organelles.
Explanation:
The cells of all prokaryotes contains a single chromosome and a double-stranded DNA while on the other hand, nucleus and other organelles are absent whereas eukaryotes contain true nucleus and organelles such as golgi bodies, endoplasmic reticulum, lysosomes, ribosomes, vacuole and mitochondria. True nucleus means the membrane is present around the nucleus.
Answer: A plasma membrane and cytoplasm
Explanation:
systems of body which holds sperm and eggs
Answer:
i- are u
Explanation:
neurons are activated by which of the following?
Answer:
Myelin sheaths protect, electrically insulate fibers and increase the speed of transmission of nerve impulses. What structural and functional type of neuron is activated first when you burn your finger? Unipolar (psuedounipolar) neurons that are sensory (afferent) neurons.
Answer:
A neuron is activated by other neurons to which it is connected. In turn, its own activation stimulates other connected neurons to activation
Explanation:
what would happen if igneous rock was first exposed to the energy from the and then millions of years later to energy from earth's interior?
Answer:
If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of igneous rock, not a metamorphic rock. Consider how granite changes form. Granite is an igneous rock that forms when magma cools relatively slowly underground.
Explanation:
Gradually, the sediment accumulates in layers and over a long period of time hardens into rock. Generally, sedimentary rock is fairly soft and may break apart or crumble easily. You can often see sand, pebbles, or stones in the rock, and it is usually the only type that contains fossils
What can form volcanoes as the two plates push apart and magma is able to rise up from the
ground and form new ocean crust?
A
convergent
B
Hot spots
C
Transform plate boundaries
D
Divergent plate boundaries
Answer:a
Explanation:
Answer: the correct answer is d
Explanation:
8. What is the sex (gender) of this karyotype?
Answer:
male
Explanation:
because XX= female and XY = male you determine the gender in the last karyotype or however you spell it
What is an autotroph?
Select one:
An organism that eats other organisms for food.
An organism that does not need food.
An organism that eats itself for food.
An organism that can build its own food.
An autotroph is an organism that can build its own food
Answer:
option D is correct answer of this question
A cross between a chestnut horse (CC) and a white horse (WW) will yield a horse with a brown with white spotted coat pattern known as palomino (CW). What kind of dominance is this?
A. codominance
B. simple dominance
C. sex linked
Answer:
A. codominance
Explanation: