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Elena L [17]
3 years ago
15

What are the four most common elements found in living things?

Biology
1 answer:
nata0808 [166]3 years ago
5 0
Oxygen, nitrogen, carbon, hydrogen NOT magnesium
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scientists use squid nerve cells in research because the nerve cells of a squid are 1000 times fatter than those of a human. how
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The outcome would be the same because in both cases a nerve cell is being researched.

Explanation:

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Describe what happens to an ecosystem when a keystone species is removed.
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The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.

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A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.

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If you had three black cards, three white cards, and three green cards, what are the chances of drawing a green card on your fir
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It you be 3/9 which is simplified as 1/3
4 0
3 years ago
Read 2 more answers
Which statement is FALSE?Question 39 options: Water can hold an unlimited amount of oxygen. Water can hold less oxygen than air
algol13

Answer: Water can hold an unlimited amount of oxygen.

Explanation:

Water cannot hold an unlimited amount of oxygen because it would get to a point where it is saturated as it needs to hold Hydrogen as well. Air on the other hand, has significantly more space for oxygen as it contains only 21% and can keep taking more.

Underwater organisms need oxygen for respiration and a small decrease in the oxygen available in water affects aquatic life because they rely on it to survive.

5 0
2 years ago
Which of the following statements is correct with respect to bryophyte development?
Darina [25.2K]

 

<span>The answer is Haploid spores germinate to give rise to protonema, which later develops into a sporophyte.</span>

A protonema (plural: protonemata) is a thread-like chain of cells that forms the earliest stage (the haploid phase) of a bryophyte life cycle..
<span>A haploid gametophyte ( each of whose cells contains a fixed number of unpaired </span>chromosomes)  gives rise to a <span>diploid sporophyte</span>,. Gametophytes produce haploid sperm and eggs which fuse to form diploid zygotes that grow into sporophytes.

7 0
3 years ago
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