All categories

3 years ago

Where did coronavirus start? How did it spread?

Biology

1 answer:

fredd [130]3 years ago

8 0

Answer:

Started in China it spread through people that went to visit other places or items that were manufactured there were contaminated

You might be interested in

How do mutations impact genetic variation?

Anna35 [415]

The random changes a mutation causes to an organisms genetic code causes either 1. A different protein to be produced or 2. none at all Mutations can either have a positive, negative or neutral (the vast majority) effect on the organism. (many times whether they are harmful or helpful depends on the environment.) When a mutation makes an organism better able to survive that organism is more likely to survive and pass the mutated gene onto the next generation.

5 0

3 years ago

The flow of _______ true and ecosystem is one of the most important factors that determines the systems capacity to sustain_____

Cloud [144]

Energy for the first one and life for the last

6 0

3 years ago

Which behavior is an instinct?

suter [353]

Answer:

Explanation:

A robin building a nest is not learned or taught like the others. It is just instinctive for robins to build nests.

8 0

3 years ago

Read 2 more answers

Please help I can’t figure this out

Ilia_Sergeevich [38]

Answer:

Photosynthesis is the process in which cells use carbon dioxide and water to make glucose in the presence of sunlight.

Respiration is the process in which glucose molecules are utilized to release energy in the form of ATP.

Explanation:

Ans1- Respiration in cells occurs in mitochondria. Cells gain energy in the form of ATP. Conversion of glucose in the form of ATP is known as cellular respiration.

Cellular respiration can take place either in presence of oxygen(aerobic respiration) or in absence of oxygen(anaerobic respiration ).

Before entering into cellular respiration glucose molecule has to be converted into pyruvic acid. This process in known as GLYCOLYSIS.

Anaerobic respiration occurs in mitochondria when oxygen is not present. It is known as fermentation.It is not effective process to produce ATP from glucose as in this process only 4 ATP can be released.

Aerobic respiration occurs in mitochondria in presence of oxygen. This is effective pathway to gain ATP as it releases 36 ATP from 1 glucose molecule.

Ans2- All cells which has photosynthetic pigments are able to use photosynthesis. Example- Blue green algae, cynobacteria etc.

Ans3- We can see different shades of green colors of plants and leaves because of different types of chlorophyll present in plant. Chlorophyll are of 6 types in plant. Their types are based on the lights they absorb. Two main types of chlorophylls are chl a and chl b.

Ans4- Both plant and animal cells have mitochondria. In plant also they need energy. To get ATP from breakdown of glucose respiration is occur in plant also.

Ans5-In photosynthesis glucose is formed from water and carbon di oxide. 6 carbon dioxide and 6 molecules of water are used to make 1 molecule of glucose. Water and carbon di oxide are reactant in this process.

Ans6 - Cells without oxygen can burn glucose to release energy. This process is known as Anerobic respiration/ fermentation. But the outcome of energy is lower than aerobic respiration. ( ANS1)

Ans7- In the process of photosynthesis reactants are water and carbon di oxide. Oxygen produced released in the form of gas along with carbon di oxide.

Ans8- The enzymatic reaction of respiration occurs in mitochondria. Krebs cycle occurs in the matrix of mitochondria.( ETC electron transport chain) to release ATP occurs in cristae of inner membrane of mitochondria.

Ans9- Plants make glucose through photosynthesis . In presence of sunlight plants use carbon dioxide and water to make sugar.

6 0

3 years ago

Advancements in the area of agriculture has started to depend on technology sources for better yield and technology advancements

laiz [17]

I think from the above answers the most appropriate is that GPS technology has led to development of robotic tractors for planting, fertilization, and crop harvesting. The global positioning system has found a wide and beneficial use in agriculture, it is used for mapping yields, variable rate planting, variable rate lime and fertilizer application, field mapping for records and insurance purposes among other uses.

6 0

3 years ago