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3 years ago

Identify the body systems that protect from pathogens?

Biology

1 answer:

vladimir2022 [97]3 years ago

3 0

Lymphatic system is what identify the body system from pathogens

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Is the elliptical shape of the earths orbit changes all the time

elena-s [515]

It is known that the Earth's orbit around the sun changes shape every 100,000 years. The orbit becomes either more round or more elliptical at these intervals. The shape of the orbit is known as its "eccentricity." A related aspect is the 41,000-year cycle in the tilt of theEarth's axis.

6 0

3 years ago

Which of the following are examples of positive feedback loops? (Choose all that apply)

aleksley [76]

The examples of positive feedback loops are as follows:

contractions during the process of giving birth
Blood clotting

<h3>WHAT IS POSITIVE FEEDBACK LOOP:</h3>

Positive feedback loop is that in which a change in a given direction causes additional change in that same direction.

The contractions during the process of giving birth is an example of positive feedback loop because the contractions further stretch the walls and continues until birthing occurs.

Also, the clotting of blood causes the stoppage of blood flow.

Therefore, the examples of positive feedback loops are as follows:

contractions during the process of giving birth
Blood clotting

Learn more about positive feedback loops at: brainly.com/question/11312580

7 0

2 years ago

Why is weeding flower beds so imprortant?

Maurinko [17]

Answer:

It's important to rid your garden of weeds because they rob your soil and your plants of important nutrients and water.

Explanation:

For Example: Certain weeds such as nut grass actually reduce crop yield on farms because their roots release chemicals that are harmful to surrounding plants.

5 0

3 years ago

Ent var

jok3333 [9.3K]

Answer: Oxygen

Explanation:I hope it helps . i have breifly explained it .

Oxygen gas is one of the products of photosynthesis.

Which reactant is the source for oxygen gas and how is it released?

A .

Water, released when sunlight splits it into oxygen and hydrogen ions

B .

Glucose, released when glucose is broken down into carbon dioxide gas, oxygen gas and water

C .

Carbon dioxide, released when sunlight splits it into carbon and oxygen gas

D .

Electrons, released when they strike the chloroplasts

Green plants capture energy and convert it into chemical energy by the process known as photosynthesis. During photosynthesis, carbon dioxide and water are transformed into simple carbohydrates and oxygen is liberated into the atmosphere.

light

6CO2 + 12H2O ----------------> C6H12O6 + 6O2

chlorophyll

Water is also used as a source of hydrogen required for reduction of carbon dioxide to form carbohydrate.

Water is oxidised in presence of light and chlorophyll. Hydrogen is removed from water and oxygen is released as follows:

light

4‎H20 ---------------> 2‎H20 + 4H+ + 4e− + O2

chlorophyll

or,

2‎H2O ----------------> 4H+ + 4e− + O2

Hence the source for oxygen gas is water and it is released when water splits in the presence of sunlight into oxygen and hydrogen ions.

So, the correct answer is 'Water, released when sunlight splits it into oxygen and hydrogen ions'.

4 0

3 years ago

pickupchik [31]

Answer:

Punnett square

Explanation:

6 0

2 years ago