Ammonites
Ammonites are squid like creatures that are named after theEgyptian god, Ammon. This extinct creature is an example of the punctuatedequilibrium. Ammonites are the ancestors of the cephalopods. These creaturesalso came from the bactries. In the punctuated equilibrium, the ammonites haveshown that they were able to evolve thru cladogenesis.
A. A line that is leveling out
B. A line that is decreasing
C. A line that is slowly rising
D. A line that is increasing
The correct answer is option B
By seeing the graph we can easily say that we see a graph that is decreasing. We can predict that in the next 20 years the number of trees will be be reduced in number.
Due to decrease in the number of trees, the oxygen concentration will also decrease. The production of oxygen will decrease for sure as trees are main source of production of oxygen in the rainforest.
b. DNA replication
c. DNA conjugation
d. DNA transcription
true or false
The correct answer is option B
Deuterosome is a subphylum of animals which means second mouth. It is also a sister clade of the Protostomia.
In deuterostomes the first opening becomes the anus but in case of protostomes the first opening becomes mouth.
The clade of deuterosomes is Echinoderm that is related to chordates.
The main reason that the spores of disease-causing bacteria are dangerous is that they are very difficult to destroy. If the bacteria is not suited in the condition state of the environmental, other kinds transform to an inactive state. They advance with a hard outer covering and look out for the suitable environmental conditions. This lie dormant bacterium is known as spores. Spores are more difficult to destroy than those bacteria that are active for they have a harder outer covering.