Answer:
population has decreased over that period ,MAyBe
Explanation:
I don't know why
Groups of different kinds of tissue working together form organs. An organ is defined as a group of tissues that work together to carry out a certain task.
A good example is the heart , a vital organ of the body. It is made up of three different kinds of tissue namely muscle tissue, nerve tissue and blood tissue. Its job is to pump blood throughout the body.
Organs are made of groups of tissues, tissues are made of groups of cells working together. A tissue is defined as a group of cells working together to carry out a certain job in the body. Examples of tissues include nerve tissue, skin tissue, bone and blood.
Answer:
Proterozoic Eon
Explanation:
The Proterozoic Eon is the most appropriate eon to indicate the geological age of this rock unit. This is because this rock presents fossils of the first multicellular and soft-bodied marine organisms and it was in the Eon Proterozoic that the first single-celled living organisms appeared.
The Proterozoic eon, as already mentioned above, is characterized by being the period of the land where the first multicellular marine organisms appeared. This period is divided into three ages: Paleoproterozoic Era (where eukaryotic beings arose), Mesoproterozoic Era and Neoproterozoic Era (where the first multicellular marine organisms arose).
Weather balloons are often used to make measurements in troposphere where weather takes place.
hope this helps.....