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3 years ago

A white blood cell engulfing a bacterium is an example of _____.

Biology

1 answer:

bagirrra123 [75]3 years ago

3 0

Answer: Phagocytosis

Explanation:

Phagocytosis is the ingestion of cells or particles as a defence mechanism when white blood cells (macrophages) engulf foreign matter such as bacteria and viruses or as part of a digestion process in free-living cells such as amoeba.

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Which organisms are classified as secondary consumers?

kvv77 [185]

Herbivores, basically any animal that gets energy from another animal is a primary consumer so a secondary consumer is any animal that gets energy from the plants or other things it just doesn't eat another animal to get energy.

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2 years ago

Why are symbiotic relationships important in an ecosystem?

Gemiola [76]

Answer:

Information:Symbiotic relationships are important because they are a major driving force of evolution. This networking and cooperation among species allows them to survive better than they would as individuals.

6 0

2 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

How are food chains and food webs related

oksano4ka [1.4K]

Answer:

A food web consists of many food chains. A food chain only follows just one path as animals find food. eg: A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass. A food web shows the many different paths plants and animals are connected.

Explanation:

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2 years ago

It is unlikely that gene duplication events in the Hox complex played a role in the adaptive radiation of animals. A) The new ge

Artyom0805 [142]

Answer: C & A

Explanation:

The HOX genes encodes important transcription factors. This factors causes protein to be made that specify cell fate and identify; embryonic primary axis, secondary axis and plays important roles in various tracts development.

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3 years ago