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Elenna [48]
3 years ago
5

I NEED HELP ASAP!!

Biology
1 answer:
tatiyna3 years ago
3 0

Answer:

Pepsi- Mixture

Sulfure- Pure substance

Copper penny- Mixture

Explanation:

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True or false<br> All living things have a heart.
pishuonlain [190]

Answer:

False

Explanation:

Can you same the same thing about organisms and aquatic animals, not every single living thing has an heart to survive.

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During vegetative propagation, offspring grow from parts of the parent ______.
poizon [28]

Answer:

<em><u>plant</u></em> is the answer

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What is produced when there is no oxygen present for the muscle cells?
Arisa [49]
Lactate is produced by fermentation
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The level of glucose in the bloodstream drops. The person requires glucose in cells to meet the demand for ATP (glucose is broke
OlgaM077 [116]

Answer:

Negative feedback.

Explanation:

It is negative feedback because the reactions triggered by low glucose levels are trying to rebalance the glucose concentrations in our body to make it work properly.

In positive feedback, a product will only stimulate more the components that lead to that product to produce more of it, increasing the product's effect and an imbalance.

7 0
3 years ago
A scientist discovers a new organism in run-off from the Rio Tinto River in Spain (the river runs through a copper mine and the
TEA [102]

Answer:

A scientist discovers a new organism in run-off from the Rio Tinto River in Spain (the river runs through a copper mine and the water has a pH of 2.0). On basic microscopic examination and after conducting a few simple experiments, she finds that this single-celled species is heterotrophic, has no cell wall, uses a flagellum for motion, and contains a variety of internal structures that are bound by plasma membranes. Given this information, this new species is most likely a <u>eukaryotic</u> cell in the <u>protozoan</u> subcategory

Explanation:

Eukaryotic cells contain nucleus and organelles and are enclosed by a plasma membrane. Organism that have these cells are protozoa, fungy, plants and animals.

Protozoan are single-celled eukaryotic.

4 0
4 years ago
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