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kiruha [24]
3 years ago
10

Which of these is purposefully changed during a scientific investigation? (4 points)

Biology
1 answer:
Hunter-Best [27]3 years ago
3 0

Answer:

the outcome will change if you change anything

Explanation:

can you be a little more specific that would help me a lot with answering this the best way possible

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In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish ar
Assoli18 [71]

Answer:

a.aquatic plants

Explanation:

The energy stored in organic matters, which can be used as fuel for various purposes. This the same energy obtained from the sun that is passed on to each tropic level by the 10% law. This is known as biomass energy.

Biomass is highest at the first trophic level in any food chain. In the aquatic food chain also the highest biomass at the first trophic level which aquatic plants.

Hence option a is correct.

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3 years ago
What organelle is huge in plant cell but small in Animal cell
mina [271]
Organelle that is huge in plant cell but small in Animal cell is a vacuole
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The following statements refer to a comparison of reproduction in ferns vs. flowering plants. Indicate whether each statement is
Dennis_Churaev [7]

Answer:

Both ferns and flowering plants produce spores at some point in their life cycles. True

Only ferns have a gametophyte as part of their life cycle. False.

Only flowering plants produce pollen grains. true

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Explanation:

Yes, both ferns and flowering plants produce spores in their life cycles. In fern plant, it produce spores on the underside of the leaves whereas in flowering plant, there are two types of spores such as microspores and megaspores. Both ferns and flowering plants have gametophyte as part of their life cycle. Flowering plants produce pollen grains whereas non-flowering plants produce spores to continue their generation. Both tree and large fern plants having diploid sporophytes which is a necessary part of their life cycle.

7 0
3 years ago
What two muscles on your muscle list aid in mastication?
Ludmilka [50]
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3 years ago
There are two types of factors that change environments. these are biotic factors and _______ factors.
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Abiotic and Biotic factors
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