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meriva
3 years ago
14

What question did Jan Ingenhousz seek to answer about plants?

Biology
1 answer:
otez555 [7]3 years ago
5 0

Answer:

He saw that green plants released bubbles of oxygen in the presence of sunlight, but the bubbles stopped when it was dark—at that point, plants began to emit some carbon dioxide. Ingenhousz concluded that light was necessary for these steps to take place

Explanation:

Its Right

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Activation of the parasympathetic nervous system results in ________
Tatiana [17]

Answer:

Stimulation of the parasympathetic nervous system results in: Construction of pupils. Decreased heart rate and blood pressure.

Explanation:

4 0
4 years ago
Which characterisic of life destinguishes a fire and a flowering plant
worty [1.4K]

Answer:

The correct answer from the options is Growth.

Explanation:

There are seven basic characteristics of life which separate living things from non- living things.

Growth is one of the characteristics which separate a living thing from a non- living thing. The plants use essential macromolecules for growing. The fire will not have macromolecules to grow. Hence, growth is the option that is correct.

Other options like defined boundary are incorrect because both plants and animals have a defined boundary.

8 0
4 years ago
Compare and contrast the specific functions of hydrogen bonds in DNA molecules and hydrogen bonds in H2O molecules
Elden [556K]

Answer: STABILITY OF THE DNA MOLECULE.

MOLECULAR STRUCTURE OF DNA.

EASY SEPARATION OF DNA

HIGH BOILING POINT OF WATER

COHESIVE FORCE HOLDING WATER MOLECULE TOGETHER

Explanation: Although Hydrogen bonds are weak,they help in stabilising the DNA.

Hydrogen Bonds are weak bonds which connects the Nitrogen bases together in a DNA,which gives the structure of the DNA.

They also aids the Easy separation of a DNA molecule.

The Hydrogen bonds are the main factor that ensures that the boiling temperature of water is high.

Hydrogen bonds are cohesive in nature, they bind water molecules together through and cause it to resist heat and high temperature.

8 0
4 years ago
Bacillus anthracis can cause infection via three different portals of entry. The ID50 of cutaneous anthrax is 10 to 50 endospore
dimulka [17.4K]

Answer:

It is significantly easier to be infected with cutaneous anthrax as compared to other forms of anthrax.

Explanation:

LD50 is the lethal dose that can cause adverse effects and death. The LD50 of cutaneous anthrax is too low as compared to inhalation and gastrointestinal anthrax which means that only few Bacillus anthracis endospores can cause infection via cutaneous route while other routes require at least 200 times greater quantity to cause infection.

8 0
4 years ago
Heat from Earth’s interior and pressure from overlying rock transform the remains of marine sediments into _____.
ki77a [65]

Answer:

Fossils. The layer of rocks compresses the remains and the heat alters the remains. Oil and natural gas.

Explanation:

I majored in Biology

3 0
3 years ago
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