The classification of organisms s based on the phylogeny of the organism, which is the study of evolutionary relationships, In the past, scientists would classify organisms based solely on their physical appearance, but today they also consider genetics and biochemistry
when classifying. Remember, the development of the new 6-kingdom classification system is based on biochemistry!
Review this image. Based on the relationships among the animals, what statement seen here are TRUE? Check all that apply.
Sharks were the first animals to have jaws.
Reptiles and birds produce amniotic eggs,
Only mammals are warm blooded.
Amphibians are the first animals to have true bones.
All the animals in this diagram are vertebrates.
Ray-finned fish and sharks are similar in that they both have paired appendages and jaws.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.