The statement that can be attributed to the discoveries made by Schwann is as follows:
The smallest unit of life is the cell.Thus, the correct option for this question is D.
What is the contribution of T. Schwann?The major contribution of Theodore Schwann is that he proposed the Cell theory in 1839. This theory consists of three parts. They are as follows:
All living organisms whether plants or animals are made up of cells.A cell is the smallest unit of life for all living organisms. A Cell is the basic structural and functional unit of life.Apart from this, Cell theory was further refined by German Biologist Rudolf Virchow in 1855. He states that "all cells are arising from pre-existing cells". Option one is given by R. Virchow.
While all animals and plants are made up of cells is the second point of the cell theory. So, the correct option with respect to the question is that a cell is the smallest unit of life.
Therefore, the correct option for this question is D.
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Do primers create a single stranded section of dna
Answer:
Yes
Explanation:
A primer is a short, single-stranded DNA sequence used in the polymerase chain reaction (PCR) technique. In the PCR method, a pair of primers is used to hybridize with the sample DNA and define the region of the DNA that will be amplified. Primers are also referred to as oligonucleotides.
When a person loses consciousness due to a head injury from a car crash, the ______ keeps the body functioning by regulating the flow of information between the brain and the rest of the body
Answer:
Brain stem
Explanation:
I hope this helps
A father sheep has curly wool while a mother sheep has straight wool. Which of these statements explains why one of their baby lambs has curly wool?
Answer:
This means that the baby sheep received the same set of genes as the father sheep giving it curly wool.
Explanation:
This means that the baby sheep received the same set of genes as the father sheep giving it curly wool.
OR if the baby sheep received a mixed set of genes , one from father , the other from mother , the gene of the father is dominant over the gene of the mother and it has given the baby sheep curly wool.
During fertilization the baby must have received the same set of genes as those of its father. If the baby has received a mixed set of genes then the genes of the father are dominant over the genes of the mother resulting in curly wool.
The fathers gene may be dominant due to environmental circumstances or other factors.
Answer:
Explanation:The baby lamb inherited its copies of the gene for wool shape from its father and not from its mother. Just like its father’s genes, those genes instruct for proteins that connect in ways that make its wool curly.
Use the drop-down menus to label the organelles in the picture to the right.
The organelles of a plant cell are labeled. Part A is a large hollow structure. Part B is the outside layer of the cell. Part C is a green leaf-shaped structure. Part D is a bean-shaped structure with folding inside.
Label A
✔ Vacuole
Label B
✔ Cell wall
Label C
✔ Chloroplast
Label D
✔ Mitochondria
Answers from Edge ;)
Answer:
Label A
✔ Vacuole
Label B
✔ Cell wall
Label C
✔ Chloroplast
Label D
✔ Mitochondria
Explanation:
Oxygen, Sunlight, and temperature are all examples of what type of limiting factor?
Answer:
Biotic Limiting Factors
These limiting factors can be further broken down into abiotic or biotic limiting factors. Abiotic factors are non-living physical and chemical elements in the ecosystem, such as sunlight, temperature, soil, water, and oxygen
For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence. DNA: TTC AAT GGT CTA GGG
What is the mrna sequce of the T T C A A T G G T C T A G G G
Answer:
AAGTTACCAGATCCC
Explanation:
always remember, you would just switch them, The Opposite Of T is A and The Opposite of G is C, and vise versa.
In protein synthesis, how many nitrogenous bases code for a single amino acid?
one
two
three
four
Answer:
C
Explanation:
EDGE 2022
How is a warm front different from a cold front?
Warm fronts cause snow flurries in the winter, while cold fronts cause several days of rainy weather.
Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather.
Warm fronts cause several days of cloudy weather, while cold fronts cause heavy snow in the winter.
Warm fronts cause thunderstorms in the summer, while cold fronts cause rain when the air is humid.
Answer:
Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather.
Explanation:
i'm pretty sure
Warm fronts cause rapid changes in weather, while cold fronts cause several days of cloudy weather. So, the correct option is B.
What are Warm and cold fronts?A warm front forms when a mass of warm air enters a space that previously held cold air. As warm air passes over cooler air, it rises and cools, which can result in the formation of clouds and precipitation. Unlike a cold front, a warm front often brings with it lighter and more widespread precipitation. Warm fronts often bring warm temperatures and high humidity levels.
When a mass of cold air approaches an area that was previously surrounded by warm air, a cold front is formed. When cold air flows into warm air, the warm air is forced to rise rapidly, which can result in thunderstorms and heavy rainfall. More extreme weather changes, such as a sharp drop in temperature and drop in humidity, are often brought about by cold fronts.
So, the correct option is B.
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islfso lufe
(Hint: a non-renewable resource, like coal)
CHAPTER
1 what is the term?
Answer:
Fossil fuel
Explanation:
bacteria in nodules on the roots of plants before an important role in the _______ cycle.
Plant cells are different from animal cells. The diagram below identifies four different structures in a plant cell. Compared to the structures in an animal cell, which of the following structures is found only in a plant cell?
a. Mitochondrion
b. Cell Wall
c. Cytoplasm
d. Nucleus
amoeba sisters: video recap - viruses
answer key?
OK
wait do you have quizlet?
An example of human activity that has had a positive effect on the environment
is the: *
a. Disruption of natural habitats through deforestation
b. Capture and sale of rare South American birds
c. Use of reforestation to control erosion in the mountains
d. Hunting of endangered species of animals
Answer:
A. distruption of natural habitats through deforestation
Explanation:
sana nakatulong :^)
Which is the correct order of processes that occur as water moves from a lake to a cloud and then back to Earth's surface? evaporation, condensation, precipitation O condensation, evaporation, precipitation O precipitation, condensation, evaporation O evaporation, precipitation, condensation
Answer:
evaporation condensation precipitation
Explanation:
evaporation is the process in which the water turns into vapor rising to the earths atmosphere. there because of low temperature it turns into condensation, because of its weight it then fall back to earth a process known as percipitation. let me know if this helps thanks
Answer:
A
Explanation:
Why are stem cells used widely now, as opposed to cloning?
Explanation:
short hair for the cover sails type of human embryonic stem cells is not widely recognized how we're not in Umbria
1. The passage above describes the interactions of several ecosystems, what is the overall theme of the
entire article? "UNDERLINE the sentence that serves as the topic sentence or thesis for the article.
a) to compare the food chains of each ecosystem
b) to convince the reader to protect the environment
c) to explain what keystone species are important in each ecosystem
Answer: to explain what keystone species are important in each ecosystem
Explanation:
The overall theme of the article is to explain what keystone species are important in each ecosystem.
Keystone species is referred to as an organism that defines the ecosystem as a whole. They help define the habitat's biodiversity.
It should be noted that despite the fact that every living organisms depends on each other, some species are more vital than others and when they're removed, there will be a drastic change in the habitat.
The San Andreas Fault marks the boundary between which two tectonic plates?
Answer:
The San Andreas Fault is the transform plate boundary where a thin sliver of western California, as part of the Pacific Plate, slides north-northwestward past the rest of North America
Somebody please help? Thanks
Answer:
I don't know man i am guessing the first one and the third one
Explanation:
Answer:
Should be A and C.
Explanation:
Acquired traits are traits a living thing gets over time, such as a scar.
Which of the following best explains the roles plants and animals play in recycling carbon? *
25 points
Plants and animals both take in carbon through digestion. They return it to the cycle through decomposition.
Plants collect and store carbon through photosynthesis. Animals exhale carbon dioxide through respiration.
Animals produce carbon through photosynthesis. Plants take in carbon for during cellular respiration.
Plants produce carbon dioxide through photosynthesis. Animals take in carbon dioxide for breathing.
Answer:
the second one is correct
What is the difference between mold and cast fossils? A Mold fossils fom from collected minerals and cast fossils do not B. Mold fossils are impressions intock and cast fossils fomm from minerals filling molds cast fossils are impressions Into rock and mold fossils form from minerals filling casts Cast fossils are formed in sedimentary rock but mold fossils are not
All of the following are believed to be causes of extinction except____
O A. human impact.
O B. meteorite collision.
O c. habitat destruction.
O D. protective breeding programs.
Which diseases would individuals have the greatest difficulty preventing in themselves?
Answer: Cystic fibrosis-genes
Explanation:
Trust me that’s the answer
help I will mark brainliest
Answer:
A. Clumped, uniform, random
How can a person cannot taste PTC I'd both of their parents have the ability to taste PTC?
Answer:
the parents are (Tt) and each passed down the recessive allele so the child is (tt)
Explanation:
Please help me asap! Thank you so much!
What is the most harmful form of air pollution: CFCs, carbon dioxide or sulfur/nitrogen containing gas? Defend your answer. (Please explain why you think that is the most harmful form of air pollution)
Sulfur Dioxide (SO2).
Sulfur dioxide (SO2) is a colorless gas or liquid with a strong, pungent odor.
What are some things you think would help identify a fossil? *
Answer: by studying the Fossil record we can tell how long life has existed on earth,and how different plants and animals are related to each other.often we can work out how and where they lived, and use this information to find out about ancient environments fossils can tell us about a lot about the past.
Explanation: If you like it please mark brainlest....
how you can play your role to overcome the waste issue in your area?
(giving brianliest with extra points)
Answer:
Recycle and throw away approprite trash
Explanation:
Recycle and throw away appropriate trash.
El sistema nerviosos esta formado por un conjunto de fibras acordonadas, largas y delgadas, a estas se les denomina.
Answer:
fibras nerviosas
Explanation:
Los nervios están compuestos por grupos de fibras nerviosas las cuales consisten de axones y las vainas que los recubren. Una fibra nerviosa está generalmente compuesta por 1-un cilindroeje (axón), es decir, una prolongación alargada de la neurona la cual conduce el impulso nervioso (señal eléctrica), 2-el axolema, o membrana celular del axón, 3-la vaina de mielina que rodea el axón y 4-el neurilema que rodea la fibra. Las fibras nerviosas se clasifican en 1-fibras mielínicas, cubiertas por la vaina de mielina, y 2-fibras amielínicas, no recubiertas por esta vaina. La presencia de la vaina y el diámetro de la fibra influyen en la velocidad de transmisión del impulso eléctrico a través de la fibra nerviosa.
Which process of genetic recombination involves genes from both parents?
crossing over
independent assortment
fertilization
tetrad formation
Answer:fertilization
Explanation:
The process of genetic recombination which involves genes from both parents is crossing over. This process occurs during prophase I of meiosis, when homologous chromosomes pair up and exchange genetic material.
Explain the process?A portion of each parent's chromosome is swapped during this process, resulting in two new chromosomal combinations that are distinct from those of either parent. Genetic variety among the progeny is produced as a result of this process, which is advantageous for evolution.
The process of crossing over is random, therefore it is unpredictable which chromosomal segments will be exchanged. This is crucial for fostering genetic diversity because it allows for a wider variety of genetic combinations to be produced when genetic material is exchanged.
As portions of each chromosome will be exchanged during crossing over, this procedure also aids in ensuring that the offspring obtain a combination of genetic material from both parents.
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