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3 years ago

Global bee populations have been declining over the past decade. What impact might this have on the world's human population?

Biology

1 answer:

aev [14]3 years ago

7 0

Answer:

Bees play a significant role in the field of agriculture. They can adapt to the process of pollination. Pollination is usually defined as the process of transportation of pollen grains from the male anther of a flower to the female stigma. The bees pollinate the crops and increases their productivity and yield capacity. About 35% of the food that we eat, are dependent on this pollination act that is carried out by the bees, involving either directly or indirectly.

Over the last few decades, the population of the bee has been decreasing, and it is directly affecting the global human population. It is because less amount of food is produced compared to the rate of demand, resulting in a shortage of food items.

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5. How do enzymes found in your saliva aid in digestion?

AfilCa [17]

Answer:

the answer is C) They increase the rate of the chemical reactions involved in digestion

Explanation:

The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.

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3 years ago

Which of the following chemical reactions proves the fact that the products of photosynthesis are reactants of respiration?

olga_2 [115]

C6H12O6 + 6O2 ==> 6CO2 + 6H2O
 This chemical reactions proves the fact that the products of photosynthesis are reactants of respiration
hope it helps

8 0

3 years ago

Read 2 more answers

In Ursula’s model, the yellow straw represents the ____ (phloem, xylem, roots, or leaves) and the red striped straw represents t

kvv77 [185]

The first options answer is phloem while the second answer is roots

5 0

3 years ago

Emily wanted to see what battery lasted the longest. She put each battery into a clock and recorded the time that the clock stop

ryzh [129]

Answer:

A constant is something whose value cannot be changed and is used for comparison purpose. 

Explanation:

The controlled variable is a type of variable whose value is kept constant during the experiment to get the desired or expected result. The difference between constant and a control variable is that the constant can never be changed.

However, the value of control variable can be changed but is kept constant with a purpose in an experiment to get the data. The controlled variable in a battery can be the multi meter that should be used for all the batteries.

7 0

3 years ago

6 effects of weeds on crops

garri49 [273]

Answer:

1. They effect crop productivity

As weeds start to grow in the area where the crops were destined to grow, the production of the crops gets lowered.

2. They deplete the crops from nutrition

The weeds will compete with the crop plants for resources such as minerals from the soil.

3. They will deplete water resources

The weeds will compete with the crop plants for water.

4. Sun-light will be depleted

The weeds will complete with the crop plants for sun light.

5. The crop quality will be affected

As the crop plants will be in competition with the weeds, hence their quality will be affected.

6. They can reduce the biodiversity of crop plants.

4 0

3 years ago