Algea
Explanation:
Algea is a pioneer that will be find where glacier has retreated
Answer:
1 quarter of a million especially young men who have dependents to go into the forestry and flood prevention work.
Rabbits do not have much of en energy reserve
Quantitative and systemic data
Answer:
B)attach specifically to host cell receptors
Explanation:
Viral spikes are one of the envelope proteins. These proteins are coded for by viral genes. Viral spikes project from the envelope surface. They are also called peplomers. One of the functions of these spikes is to specifically interact with the receptors present on the surface of the host cell to mediate the attachment of the virus to the host cell surface. Viral spikes and the host cell surface receptors are complementary to allow their specific binding. For example, the spike protein of the SARS-coronavirus bind specifically to the human host cell receptor ACE2.