1. A seed leaf - cotyledon
2. A flowering plant with seeds that have two seed leaves - dicotyledon
3. A food storage tissue - endosperm
4. A flowering plant with seeds that have one seed leaf cotyledon - monocotyledon
Foreign invaders have proteins called antigen, which antibodies lock onto to neutralize. The foreign proteins are different from proteins in our own body, so the immune system can recognize them and finally eliminate them.
Binary fission enables them to reproduce quickly.
Most heterotrophs are chemoorganoheterotrophs<span> (or simply </span>organotrophs<span>) who utilize organic compounds both as a carbon source and an energy source. The term "heterotroph" very often refers to chemoorganoheterotrophs. Heterotrophs function as consumers in </span>food chains: they obtain organic carbon by eating autotrophs or other heterotrophs. <span>Most </span>opisthokonts<span> and </span>prokaryotes<span> are heterotrophic</span>
Answer:
Pugs appear to be ugly due to them being bred deformed by design, harboring a condition called brachycephaly.
Explanation:
