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Sauron [17]
3 years ago
11

According to evolutionary theory, the cell on the right appeared first. _________________ were among the first photosynthetic fo

rms of this organism. A) algae B) cyanobacteria C) plants D) zooplankton
Biology
2 answers:
kykrilka [37]3 years ago
8 0
Cyanobacteria; I got it right on usa test prep
Zarrin [17]3 years ago
4 0
B. cyanobacteria

hopefully, it helps you out.
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Organisms such as jellyfish and sea turtles depend on which ocean movements to find food and avoid predators? *
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A.

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nexus9112 [7]

Answer:

Organization helps us make sense of our surroundings. Some people organize their sock drawers

by color. Books in a library are often organized by topic. Food in a grocery store is organized so we

to know just where to find something.

For scientists, organization is an essential tool. The organization of similar organisms into groups

helps scientists understand how living things are related. It also allows scientists to communicate

about all forms of life. For example, suppose a scientist in the United States writes about a specific

group of animals. Other scientists around the world will know exactly which group of animals the

writer is referring to. But, how do scientists decide which organisms to group together? Do they use

a particular process?

Scientists classify organisms in different ways.

Scientists organize the living world using a process called taxonomy, which is the science of

classifying organisms based on shared structures, functions, and relationships to other organisms.

For example, organisms can be classified based on their cellular

structure. Organisms that have nuclei are eukaryotes. Eukaryotes

also have organelles, or specialized structures bound in a

membrane. They are in a different group than prokaryotes, which

are organisms that do not have nuclei. Also, many unicellular

organisms are in a different group than multicellular organisms.

For example, bacteria are unicellular organisms. They are in a

different group than animals, which are multicellular. Living things also can be classified

according to the way in which they

obtain food. Think about the

differences between plants and

animals. Plants make their own food and are called autotrophs. Animals must consume other

organisms and are called heterotrophs. This difference classifies

plants and animals into two separate groups.

Method of reproduction can be used to classify organisms into

even smaller groups. The two main reproductive methods are

asexual and sexual reproduction. In asexual reproduction, only

one parent is involved in producing offspring. In sexual

reproduction, two parents are involved: a male and a female

Explanation:

6 0
3 years ago
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