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Marina CMI [18]
3 years ago
11

A student has obtained a sample of pond water for study. Using the high-power lens, he observes several cells with nuclei. He ca

n conclude that the cells are NOT bacteria.
True/False
Biology
1 answer:
Reil [10]3 years ago
7 0

Answer:

True

Explanation:

Bacteria are prokaryotic organisms. Being prokaryotes, bacteria do not have a nucleus in their cells. Their DNA or the genetic material lies in the cytoplasm itself. Therefore, if the observed cells have a nucleus and other membrane-bound organelles, this means that those cells were not the bacterial cells. Bacterial cells also do not have other membrane-bound organelles such as mitochondria, endoplasmic reticulum, etc.

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The answer to the questions
Aleksandr [31]
The answer that makes the most sense is number one or two. Number 3 and number four both makes no sense in that context. Most of the time an animal will not die or mutate due to a parasite in its body.
8 0
4 years ago
Griffith called the process he observed transformation because
Y_Kistochka [10]

Answer:

c. The harmless bacteria had been transformed.  

Explanation:

Fredrick Griffith carried out the first experiment that showed bacteria can get DNA by transformation in 1928.

He used two different strains of the bacteria Streptococcus pneumoniae a)type-III-S or smooth strain-Covered by a protective polysaccharide capsule hence lethal

b) type II-R or rough strain-Lacked the polysaccharide hence non-lethal

In his experiment he observed heat killed Type-III-S strain was not able to kill the mice. However, when its remains was added with rough strain then the blend was able to kill the mice.

When he collected blood  from the dead mice it had live strains of both smooth and rough type.

He came to a conclusion that non-lethal type II-R strain was transformed into lethal type II-S strain by a "transforming principle"  that was supposed to be the part of dead III-S strain bacteria.

3 0
4 years ago
1. Lynn is a 2-year-old girl. Her mom and she like to play a game where her mom pretends to
Stolb23 [73]

Answer:

Conditioned response.

Explanation:

Lynn was conditioned to kick her legs as a response to whatever happens after her mom grabs the monkey.

7 0
3 years ago
Do you want to do this
Anastaziya [24]

Answer:

....I started from where you ended....

friction

velocity

net force

speed

balanced force

mass

weight

centripetal force

newton

unbalanced force

rest

force

Explanation:

8 0
3 years ago
Please help me before I pull my hair out.
IceJOKER [234]

Answer:

the correct compound is 10O2 ,The one that is incorrect is2C4H10, can I be your friend? and pls don't pull ur hair out

8 0
3 years ago
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