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PilotLPTM [1.2K]
3 years ago
6

Which statement best describes a physical change?

Biology
1 answer:
garik1379 [7]3 years ago
6 0

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

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what are the scientist doing incorrectly? what could they do to make their work in the lab safer? why is it important to follow
Andrews [41]

Answer:

What the scientist is doing incorrectly is disposing of a chemical or biological waste in the common sewer.

Explanation:

One of the most important biosecurity measures is the proper disposal of chemical and biological waste. What the shown scientist is doing incorrectly is disposing of potentially harmful substances in a normal sewer.

<h3>What could he do to make their work in the lab safer? </h3>

The main thing that must be done to maintain a safe laboratory is to perform proper disposal of chemical or biological waste, which must be placed in airtight containers and transported to a location for safe disposal.

  1. <em>Chemical waste is usually taken to a landfill where it can be neutralized. </em>
  2. <em>Biological waste is transported to incinerators for complete disposal. </em>
<h3>Why is it important to follow these procedures? </h3>

Following these procedures is important to avoid chemical or biological contamination of both the environment and people.

4 0
3 years ago
Give one possible explanation for why the graph drops after 18 hours
tekilochka [14]

Answer:

nothing is happening

Explanation:

4 0
3 years ago
Read 2 more answers
Of the total amount of glucose energy consumed by the body each day, about what percentage is used by the brain and nerve cells?
Alexeev081 [22]

Of the total amount of glucose energy consumed by the body each day, about 20% is used by the brain and nerve cells.

The brain constitutes about 2% of the total body but it is one of the main consumers of energy derived from glucose.

The energy provided by glucose is used for the proper functioning of the brain. It generates ATP which is an energy source that is responsible for r neuronal and non-neuronal cellular maintenance and generates neurotransmitters.

Thus glucose-derived energy is critical for the health of the brain. Lack of energy can cause several brain diseases.

If you need to learn more about glucose energy, click here

brainly.com/question/11653058?referrer=searchResults

#SPJ4

4 0
2 years ago
Organism
Evgen [1.6K]

Answer:

Explanation:

Wolves: carnivore

Deciduous Trees: Producers

Cacti: producers

Herbivorous lizards: omnivore

Rattle Snakes: Carnivore

Monarch butterfly: Producer

Algae: Producers

Killer whale: Carnivore

Hope this helps

4 0
3 years ago
What happens to matter in a biogeochemical cycle
Lady bird [3.3K]

Answer:

A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem. ... Each of these elements is circulated through the biotic components, which are the living parts of an ecosystem, and the abiotic components, which are the non-living parts.

6 0
3 years ago
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