During the miocene epoch of the Cenozoic era, there was an adaptive radiation of Apes. During the miocene, hominods radiated and dominate the primate world. The Miocene is a geological epoch that existed from roughly 24 million years ago to about 5.3 million years ago. During this period much of the continental Earth formed. The continents moved into positions that are recognizable in modern times, and flora and fauna evolved into species that exist today.
Answer:a. gastropods, bivalves
Explanation:mollusca is a phylum which consist of organisms whose body are bilaterally symmentrical (can be dived into two equal mirror part through a unique plane)and segmented, except the gastropods which are asymmetrical.
Mollusca possess a ventral body wall and is modified into a muscular foot for lomotion.they use radula for feeding , except the bivalves which are filter feeders
They possess gills/ctinedia for respiration.they may also use lungs or body surface for respiration.
Snail is an example of gastropoda.they are the most populous and diverse class of mollusca.other examples include slugs, periwinkle etc.
Oysters is an example of bivalva.they have two calcerous valves held together by a ligament.they have no head and their body is compressed in their shell.examples oysters and clams.
Answer:
Yes
Explanation:
Natural selection was first postulated by Charles Darwin. It is the idea that organisms that are best adapted to their environment are able to survive and reproduce thereby transmitting their favorable characteristics to their offspring.
In our experiment, the insects that were able to survive were allowed to reproduce thereby transmitting their favorable characteristics to their offspring. This is a demonstration of natural selection.
Answer:
A. broad spectrum
Explanation:
An antibiotic is a substance that has the capability to inhibit the growth of or kill bacteria.
A broad spectrum antibiotic has the capability to be inhibit or kill a wide range of bacteria species while a narrow spectrum can only operate within a narrow range of bacteria species.
<em>Hence, in a situation where the the causative organism of the disease (the pathogen) is not known, it is better to use a broad spectrum antibiotic because such antibiotic has a higher chance of eliminating the pathogen.</em>
