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kvv77 [185]
3 years ago
8

Question 19 help will mark brainlest

Biology
1 answer:
aliina [53]3 years ago
7 0

Answer:

It an example of newton's first law. So the answer is A

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Which microscope would be used to observe surface structure of corona virus?
ElenaW [278]

Answer:

SEM ANSWER

Explanation:

Electron microscopy is a powerful tool in the field of microbiology. It has played a key role in the rapid diagnosis of viruses in patient samples and has contributed significantly to the clarification of virus structure and function, helping to guide the public health response to emerging viral infections. In the present study, we used scanning electron microscopy (SEM) to study the infectious cycle of SARS-CoV-2 in Vero E6 cells and we controlled some key findings by classical transmission electronic microscopy (TEM). The replication cycle of the virus was followed from 1 to 36 h post-infection. Our results revealed that SARS-CoV-2 infected the cells through membrane fusion. Particles are formed in the peri-nuclear region from a budding of the endoplasmic reticulum-Golgi apparatus complex into morphogenesis matrix vesicae. New SARS-CoV-2 particles were expelled from the cells, through cell lysis or by fusion of virus containing vacuoles with the cell plasma membrane. Overall, this cycle is highly comparable to that of SARS-CoV. By providing a detailed and complete SARS-CoV-2 infectious cycle, SEM proves to be a very rapid and efficient tool compared to classical TEM.

4 0
3 years ago
What are two processes that use oxygen?
sveta [45]
Breathing, burning something/ fire, or i guess photosynthesis
7 0
3 years ago
2. What evidence was found to support the different parts of cell theory?
lukranit [14]

Answer:

The invention of the electron microscope allowed them to see organelles and other structures smaller than cells. There is variation in cells, but all cells have a plasma membrane, cytoplasm, ribosomes, and DNA. These similarities show that all life on Earth has a common ancestor in the distant past

4 0
2 years ago
cuando se cruza un conejo blanco homocigoto (bb) con una coneja negra heterocigoto (Bb). que proporcion de conejos blancos tendr
enot [183]

when a homozygous white rabbit (bb) is crossed with a heterozygous black rabbit (Bb). what proportion of white rabbits would the offspring have?

Answer:

Based on the Mendelian fashion cross,

bb is hetezygote reccessive.(white)

Bb is heterozyote dominant.(black)

Therefore,the the cross to show the proportion is below

Bb,Bb,bb,bb,

2 blacks(hetero zygote blacks) and 2 white.(homo zygote whites)

thus 2 of the offspring will be white, in 50%, of the number of offspring

Explanation:

6 0
3 years ago
An early winter frost prevents further growth in a tomato garden. The frost is an example of which of the following?
qwelly [4]
Give us Choices, but I’m guessing it’s limiting factor
6 0
2 years ago
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