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GaryK [48]
3 years ago
14

The invention of which instrument allowed scientists to discover cells?

Biology
2 answers:
Maslowich3 years ago
8 0
C. Microscope
They were able to get magnification like never before
Effectus [21]3 years ago
3 0
B. magnifying glass.
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Four examples of the effects of environmental change are given. Match each one with the type of environmental change it demonstr
Vikki [24]

<u>Answer</u>: The answers are matched as follows:

African forests have been hunted to near extinction levels to obtain ivory-------------->human exploitation

The eruption of mount Saint Helens destroyed some populations of conifers------> natural disasters

An infection with a fungus reduced the population of North American Elm trees ----> disease

Increasing global temperatures have altered migration patterns of humpback whales ------>climate change

<u>Explanation</u>:

  • <em>Human</em> <em>exploitation</em> is the unethical or selfish use of resources to satisfy their own personal needs or for any profitable activity which harms the resources in such a way that they get limited. Humans have been hunting elephants to obtain ivory for many purposes such as making jewellery etc. and earning profits from it. Due to such extensive hunting they have driven the elephants to a level of extinction and thus, this is a form of human exploitation.
  • Mount Saint Helens is a volcano and its eruption which harms the population of the trees in the area is a form of natural disaster since volcanic eruption is a <em>natural</em> <em>phenomena</em>.
  • Fungal infection is a <em>disease</em> which is cause by the microorganisms which harms the population of the Elm trees.
  • Increase of global temperature is a type of climate <em>change</em> and thus, this effect of alteration of migration pattern is caused by climate change.
3 0
3 years ago
What do you think would happen if we did not have an atmosphere?
Mamont248 [21]

Answer:

If we did not have an atmosphere, we would fly out into space. We would also not be protected from harmful rays from the sun, and astroids. Human life would not live very long.

Explanation:

Hope this helps! :)

6 0
2 years ago
Charlie is a 2 ½-year-old boy with a history of asthma and allergies. he is on several maintenance medications. his parents rush
Doss [256]

Answer:  A diet rich in calcium and vitamin D supplements.

Some examples off calcium rich foods include Cheese; Yogurt; Sardines and Canned Salmon; Beans and Lentils; Almonds; Whey Protein; Some Leafy Green.

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What is the complementary DNA strand to the DNA sequence shown below? <br><br> AACACTTAT
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TTGTGAATA here ya go
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A liver cell in a squirrel has how many chromosomes
quester [9]

80 chromosomes (40 pairs)


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