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Fittoniya [83]
3 years ago
15

In 1668, Francesco Redi conducted an experiment with jars of meat. This experiment was noteworthy because it

Biology
1 answer:
Stolb23 [73]3 years ago
6 0
In 1668, Francesco Redi, an Italian scientist, conducted an experiment with jars of meat. This experiment was noteworthy because it disapproved the hypothesis of spontaneous generation. He placed fresh meat in each of two separate jars. One of the jars was left open and the other was covered with a cloth. A few days later, the open jar contained maggots while the covered jar contained no maggots, although there were maggots on the exterior surface of the cloth covering the jar.
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In what type of situations would random sampling (last lab) be useful?
egoroff_w [7]

In some types of research the target population might be as broad as all humans, but in other types of research the target population might be a smaller group such as teenagers, pre-school children or people who misuse drugs.

It is more or less impossible to study every single person in a target population so psychologists select a sample or sub-group of the population that is likely to be representative of the target population we are interested in.

This is important because we want to generalize from the sample to target population. The more representative the sample, the more confident the researcher can be that the results can be generalized to the target population.

One of the problems that can occur when selecting a sample from a target population is sampling bias. Sampling bias refers to situations where the sample does not reflect the characteristics of the target population.

7 0
2 years ago
This process involves DNA replication, which duplicates chromosomes
Contact [7]

Answer:

Meiosis

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Meiosis is the spliting of sex cells or chromosomes through the PMAT phase twice. <u>Mitosis</u> is the splitting of <u>body cells</u> such as skin cells ect. and only goes through PMAT once.

3 0
2 years ago
Question 1(Multiple Choice Worth 2 points)(05.05 MC)How does the human immune system initially respond to a pathogen?
Rufina [12.5K]

Immediately, the pathogen has been recognized:

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if the pathogen comes back a 2nd time the memory cells helps in quick and efficient recovery by producing the specific B and T cells for the antigen.

4 0
3 years ago
The phase during mitosis in which chromosomes move into the center of the cell is _____.
Ede4ka [16]
The phase is metaphase. I can remember this because bith "meta" and "middle" start with the letter "m".
8 0
3 years ago
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What describes skeletal muscles​
Mashutka [201]

"Skeletal muscle, also called voluntary muscle, in vertebrates, most common of the three types of muscle in the body. Skeletal muscles are attached to bones by tendons, and they produce all the movements of body parts in relation to each other. Unlike smooth muscle and cardiac muscle, skeletal muscle is under voluntary control. Similar to cardiac muscle, however, skeletal muscle is striated; its long, thin, multinucleated fibres are crossed with a regular pattern of fine red and white lines, giving the muscle a distinctive appearance. Skeletal muscle fibres are bound together by connective tissue and communicate with nerves and blood vessels."

Britannica, The Editors of Encyclopaedia. "Skeletal muscle". Encyclopedia Britannica, 5 Jan. 2018, https://www.britannica.com/science/skeletal-muscle. Accessed 24 May 2021.

Explanation:

I am currently taking biology and the Britannica website has most definitely proven to be a reliable source!

7 0
2 years ago
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