i think it’s the last one on question number one, and the first one on question two.
Answer:
Ampicillin in a plate do as to help in maintaining ampicillin resistance plasmid in the growing medium
Explanation:
Ampicillin is an antibiotics that help to kill E.coli bacteria .
While growing bacteria in a plate or growing medium, it is important to add ampicillin to the plate so to maintain ampicillin resistance plasmid.
The absence of ampilicin, the bacteria will lose their resistance after they might have gone through some cell divisions and any bacteria that doesn't have resistance plasmid will be more vigorous than those that have and will outcompete them
Answer:
The statement is true since one of the main functions of the enzyme is to lower the activation energy so that a chemical reaction to proceed.
Explanation:
Enzymes are specialized protein molecules that contribute to faster chemical reactions. One of the functional characteristics of an enzyme is that it reduces the activation energy for a reaction to occur.
Activation energy is the amount of net energy required for a reaction to occur. By lowering the activation energy, a reaction occurs faster, which is achieved with a biocatalyst such as enzyme.
Plants can sense changes in the seasons. Leaves change color and drop each autumn in some climates (Figure below). Leaves changing color is a response to the shortened length of the day in autumn. ... And, in the spring, the winter buds on the trees break open, and the leaves start to grow.
The input in the system is the brain.
Option C is the correct option.
<h3>
What is the brain?</h3>
The brain is a complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body.
From the diagram, we can conclude that the brain is the input in the system because it is the brain which gives the signals to the glands in the skin in order to perform any activity.
The brain is known to have three main parts:
- the cerebrum,
- cerebellum and
- brainstem
The Cerebrum is the largest part of the brain and is composed of right and left hemispheres.
The brain serves many functions to the human body as it controls our ability to balance, walk, talk, and eat. It coordinates and regulates our breathing, blood circulation, and heart rate.
Learn more about the brain at: brainly.com/question/1247675
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