Answer:
a. undergo complete metamorphosis and have segmented bodies
c. undergo complete metamorphosis and have an exoskeleton
Explanation:
Insects are the members of the phylum Arthropoda. They have jointed legs. Their body is segmented externally into the head, thorax and abdomen. Their body is covered by an exoskeleton. Exoskeleton formed from thick non-living cuticle which is made of chitin. In them, fertilization is internal. They are mostly oviparous. Development is direct or may be indirect. In the case of indirect development, there is complete metamorphosis.
Answer:
Explanation:
Well sorted sediments, evenly distributed sediments of uniform size, typically contain 26% to 48% open space. ... Thus, well sorted sediments have higher porosity while poorly sorted sediments have low porosity. Permeability refers to how easily water passes through sediments and rock.
Answer:
Cross-pollination
Explanation:
cross-pollination is when pollen from one plant gets transported to another plant.
self-pollination is when pollen gets transported from the anther to the stigma of the same flower or a different flower on the same plant.
Water is critical in all life. This is because it is important in the biochemical process of the cell. Take an example; water is consumed in most hydrolysis reaction in the body and is also significant in the regulation of blood pressure. Therefore even microbial activity will be reduced during water scarcity. Subsequently, nitrification process by nitrifying bacteria will definitely reduce in dry summers.
There are two ..,there are one magnesium ion and two hydroxide ions