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Vilka [71]
3 years ago
5

A All living things contain cells.

Biology
1 answer:
laila [671]3 years ago
3 0

Answer:

yes

Explanation:

amoeba belongs to the protista family

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Bacteria such as e. Coli and salmonella produce invasins that bind host cells. True or False
gavmur [86]
Answer:

True

https://www.easynotecards.com/print_list/94482
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3 years ago
The archaebacteria kingdom has been on earth for at least ________ years.
nata0808 [166]

Answer:

Archaea are found in the harshest environments on Earth, and are the oldest known organisms on Earth, appearing in the fossil record over 3.6 BILLION years ago

Explanation:

Hope this helps!

6 0
2 years ago
After ovulation, an oocyte remain viable in the female body for up to
Georgia [21]
<span>After ovulation, an oocyte, or egg cell, remains viable in the female body for up to 24 hours. The generally accepted lifespan in a woman's body is 12 to 24 hours for the egg and up to five days for the sperm cells. Intercourse occurring as many as five days prior to ovulation, therefore, could potentially result in pregnancy.</span>
8 0
3 years ago
How could you use a microscope to help determine whether a specimen is a living or nonliving thing
lara [203]
<span><em>Whether living or non living:</em>
<em>When you put a sample of tissue under a microscope, if u can see a cell membrane, and can identify some cell structures like nucleus, mitochondria, vacuoles etc. , it was living, if not, its a non living thing.</em></span>

<span><em>However some cells don't have a nucleus( eg. prokaryotic cells), but all cells have a cell membrane or some sort of protective covering to contain the cell's insides. </em></span>

<span><em>To check if your specimen maybe-once living, maybe-still living "something", is living, get a look at it through an electron microscope - thats the best microscope ever- and see if the mitochondria's making any ATP( adenosine triphosphate, source of energy for most organisms), if it does, its living. If not, no</em></span><em>n living. :)</em>
7 0
3 years ago
A dichotomous key starts with _____ information and leads to _____ information
timama [110]
The dichotomous key is used as a classifying tool for items in the natural world, (trees, wildflowers, mammals, reptiles, rocks...). At each step of the classification process,<span> the user is given two choices and each choice leads to another question until the item is identified.</span>
<span>A dichotomous key starts with specific information and leads to general information.
</span>
7 0
3 years ago
Read 2 more answers
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