Answer:
The food you've eaten goes down your oesophagus to your stomach, then to your small intestine, large intestine, and out out the anus during digestion, which can take anywhere from 24 to 72 hours.
Explanation:
mutation is a change that occurs in our DNA sequence.some mutation has a positive effect on organisms in which they occur, they are also called beneficial mutation. such causes a body to produce certain proteins which are helpful in for organism to adapt to changes in environment.
Answer:
This question lacks options, the options are:
1. an ecosystem completely out of balance
2. how ecosystems maintain stability over time
3. interaction between biotic and abiotic factors within an ecosystem
4. ecological succession
The answer is 2
Explanation:
An ecosystem comprises of biotic organisms, abiotic substances etc. that interact with one another. The biotic components of an ecosystem are known to feed on one another in order to obtain energy. However, stability of an ecosystem must be maintained between predators and prey or else there will be extinction of many species of organisms.
One way balance in an ecosystem is maintained over time is by the increase and decrease in population of predators and preys in an ecosystem. For example, If the population of hawks (predator) in an area increases, their prey populations might decrease because there will be less predation.
Also, at a later time, when there is a fewer population of prey, the hawk population might decrease because there is less food to eat. The prey populations might then increase.
Answer:
GGATATATGCCCTAG
Explanation:
Those are the letters that would pair up in the mRNA strand. Adenine goes with Thymine and Cytosine goes with Guanine. Zip up these two sides and you get a successful DNA strand.
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