Answer:
a tubular excretory organ, numbers of which open into the gut in insects and some other arthropods.
(oxford languages supplied the definition)
Answer:
A. Ancient bacteria
Explanation:
From the salt of the earth, researchers have isolated and revived a Bacillus strain, which they believe is >250 million years old. If correct, Russell Vreeland and his colleagues from West Chester University, Pennsylvania, have discovered the oldest living organism in the world.
Answer:
They all have solid, rocky surfaces.
Explanation:
Answer:
A.
Explanation:
Dark coloured moths will be better camouflaged and so better protected from predators. More of them will survive and reproduce, increasing the frequency of dark coloured genes.
Light coloured gene will provide less camouflage, those moths will be caught by predators more often and live to reproduce less. So the light coloured gene will decrease.
Answer:
Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes,
