Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. ... Humans use protists for many other reasons: Many protists are also commonly used in medical research
<u>Answer:</u>
All the individuals of a species that live together in one place at the same time is called as population.
<u>Explanation:</u>
- When organisms of same group or species live in a particular area they are defined as population.
- Along with living in a particular area the species should also have the 'capability of interbreeding' in order to be called as population.
- Demography is a social science that deals with the 'statistical study of population'.
- A term 'sex population' is often visualized in 'population genetics', it refers to a organisms group in which a 'pair of members' can breed together.
<span>Part
a the adaptation that made possible the colonization of dry land environments
by seed plants is most likely the result of the evolution of pollen.</span>
The main advantage of seed plants
(Gymnosperms and Angiosperms) is the evolution of the seed which, unlike
spore-producing plants, was not limited to wet environments. Pollen grains are
male gametophytes (sperm) which are protected from desiccation and can reach
the female organs without dependence on water. The sperm is transferred from
the pollen through the pollen tube: an extension of a cell within the pollen
grain. The process is called pollination.
Answer:
Stanley Miller created an experiment where he sent an electrical charge through a flask of a chemical solution of methane, ammonia, hydrogen and water . This created organic compounds including amino acids .
The experiment supported the hypothesis that several organic compounds can be created in earth's early atmosphere , several organic amino acids can be created from inorganic raw material .
Explanation:
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