Steps are required for a pathogen to infect a novel host species.
- A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence.
- The pathogens can be viruses or bacteria. If the host is humans then these pathogens can enter through nose, sputum, yes or any cut wounds.
- After entering the host species, the pathogens ejects its genome into the cell of the host for its multiplication. Such type of organisms require the machinery of the host to multiply.
- The pathogens after multiplying, increases in number and damages tissues and organs of the host thereby causing diseases.
Answer:
C. After running 20 miles
Explanation:
Anaerobic respiration only occurs when an organism lacks all the oxygen we need to function. After running 20 miles, you will be out of breath, and you will have been using more energy than your respiratory system could produce alone. Due to this, your body will start using some of your energy stored within cells in order to continue functioning. This kind of respiration is basically 'burning calories'.
A Polypeptide chain is a sequence of amino acids that is the foundation for the basic structure of a protein
<span>The question is asking "Which best matches a list that a scientist would make to describe a forest ecosystem? " An ecosystem is the total of all animals, plants and of the physical enviroment (soil, etc) in a given place. All of these would have to be present in the description, but it would not be possible to expect the list of all the animals - since for example not all of them are known or classified. So the best answer is
A. Different types of animals and plants, and the forest soil</span>
Answer:
DNA makes genes I think so
