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nignag [31]
3 years ago
9

This is a system of biological structures and processes within an organism that protects against disease

Biology
2 answers:
aniked [119]3 years ago
8 0
The immune system is the body's defense against infectious organisms and other invaders that cause a disease
Rashid [163]3 years ago
7 0

Answer:

the immune system i just did it on usatest prep

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8. At the 5th trophic level would be ___ consumers that eat ___ consumers. I need to fill in the blanks.​
sattari [20]

Answer:

At the 5th trophic level would be <em>quaternary</em> consumers that eat <em>tertiary </em>consumers.

Explanation:

Producers include photosynthetic organisms such as plants and algae.  They are eaten by primary consumers (herbivores).  Secondary consumers include omnivores and predators that prey on primary consumers.  Tertiary consumers include omnivores and predators that prey on primary and secondary consumers.  Quaternary consumers include omnivores and predators that prey on all lower trophic levels.

4 0
2 years ago
Extra-solar planets are probably composed of which gases? Select all that apply.
kherson [118]

Answer:

Hydrogen and helium.

Explanation:

Extrasolar planets, also called exoplanets are the planets that are placed out of the solar system and it orbits around another star, not the Sun. The planets that are not orbiting around the Sun are made of two easiest elements, and those elements are hydrogen and helium. Extrasolar planets are very strange objects that are not even close to looking like Earth.

6 0
3 years ago
The biomass pyramids for phytoplankton and trees in their respective environments are _______.
ss7ja [257]

The right answer is opposite.

In the air, the biomass of primary producers is often much higher than the biomass of consumers, especially in forests where a large part of the biomass is wood. In aquatic environments and especially oceanic, the biomass of primary producers (phytoplankton) is generally lower than that of consumers but this biomass is rapidly renewed.

6 0
3 years ago
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What is chemical name for woodspirit ? (no outside influence)
Kazeer [188]

Answer:

the chemical name is Methanol

Explanation:

Methanol chemical formula is CH3OH

5 0
3 years ago
Read 2 more answers
What is the greatest use of groundwater?
Black_prince [1.1K]
Agriculture is the greatest use of groundwater.

Hope this helps!
7 0
3 years ago
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