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3 years ago

Alyssa investigates properties of matter. The answer to which question would best

Biology

1 answer:

timofeeve [1]3 years ago

6 0

Answer:

This question is incomplete as it lacks options, the options are:

A) What is the radius of each particle of the substance?

B) Does the substance contain more than one type of atom?

C) Was a chemical reaction necessary to create the substance?

D) What is the electrical charge of the particles of the substance?

The answer is B

Explanation:

In chemistry, an element is a substance made up of a single type of atom i.e. only one atom of the same type constitutes an element while a compound is a substance that contains two or more different elements. If a compound contains different elements, it means that a compound will certainly contain more than one type of atom.

According to this question, the best question to ask when Alyssa wants to differentiate between an element and a compound is: DOES THE SUBSTANCE CONTAIN MORE THAN ONE TYPE OF ATOM?

- If the answer is yes, the substance is a COMPOUND

- If the answer is no, the substance is an ELEMENT.

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How do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? What about microorgani

malfutka [58]

Answer:

In an ecosystem, all organisms benefit in the process of transformation of energy.

Explanation:

An ecosystem works thanks to the constant transformation of energy. In the case of microorganisms that act as producers, they benefit the rest of the ecosystem in terms of energy transfer because they acquire the energy from a lowest trophic level to make it available for higher trophic levels.

In the case of the primary consumers, they are feeding from the primary producers, incorporating that energy to be part of the food chain. For example, bacteria in the soil are primary producer microorganisms; they transform organic material to make it available for small individuals. A soil worm is a primary consumer microorganism which will feed from this organic material transformed by the bacteria. The worm will then produce food and will be food for herbivores to continue with the flow of energy in the food chain.

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3 years ago

How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what ways do these differences r

stira [4]

Answer:

Bivalve- Wedge shaped foot

Snail- Large and flat foot

Cephalopod- Foot is modified into siphon.

Explanation:

Molluscs are predominantly marine animals with a soft body,however,they are known to inhibit fresh water as well as terrestrial habitat.

They possess a *muscular foot*,which is used for *locomotion and anchorage*,they vary in shape and function depending on the type of mollusc.

MODIFICATION OF FOOT IN MOLLUSCS:

Bivalve- Foot is usually wedge shaped

Snail- Foot is large and flat

Cephalopod: Foot is modified int a siphon( a tube-like organ)

ADAPTATIONS OF FOOT IN MOLLUSCS

1)Bivalves have pointed retractable foot(wedge foot) that protrudes from the wheel and is adapted for *moving or burrowing*.

2)Snail have a mucus-laden muscular foot adaptation,that reflexes and contracts allowing movement(*crawling*) in water and terrestrial habitats

3)The foot of cephalopod is adapted for *moving* about by a kind of jet propulsion in water.

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3 years ago

Using the drop-down menus, label the parts of an amino acid.

VikaD [51]

Answer:

You didn't provide a photo for me to base my answers off of. But amino acids are made up of an amino group, an acid group, and the side chain.

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2 years ago

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Why are Viruses unique among infectious agents ??

tatiyna

Because it is both dead and alive !!

When outside the host , it is inactive or dead , but as it goes inside the host , it starts multiplying by hijacking the genetic machinery of the host cell !!

this property makes the virus unique of all !!

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3 years ago

Climate change can affect biodiversity in many different ways. What are potential consequences of climate change on biodiversity

mestny [16]

All of the above if that’s not a choice the third one sounds best

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