Darwin's plans to find out about simulated choice by examining pigeons is that he needed to learn whether you can change the entire species taking after that particular pigeon into another type of pigeons. I hope the answer will help you.
29. B
30. EXO means your EXporting it out of the cell so the answer would be C
Answer:
Because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules.
Explanation:
Carbon atom can form four chemical bonds to other atoms.
Answer:
When an electron absorbs energy, it jumps to a higher orbital. An electron in an excited state can release energy and 'fall' to a lower state. When it does, the electron releases a photon of electromagnetic energy.
Explanation:
Like cells, Viruses contain "nucleic acids".
<u>Answer:</u> Option C
<u>Explanation:</u>
Either DNA or RNA is contained in all viruses in the form of nucleic acid but not the both. Viruses encapsulates nucleic acid in a protein cover. Viruses are divided into four shape-based groups named as filamentous, isometric or icosahedral, enveloped, head and tail form.
Virus life cycle is comprised of basically attachment; penetration; uncoating; replication; assembly and finally release. Viruses can only spread by penetration of a host cell and can not replicate themselves. Viruses are a genetic material (not cells) inside a protective proteins coat called a capsid. They infect a large range of species including eukaryotes as well as prokaryotes.
