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QveST [7]
3 years ago
10

How is modern earth different from earth over 4 billion years ago?

Biology
1 answer:
igor_vitrenko [27]3 years ago
5 0

Earth and its atmosphere are continuously altered. Plate tectonics shift the continents, raise mountains and move the ocean floor while processes not fully understood alter the climate. Such constant change has characterized Earth since its beginning some 4 billion years ago.

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Toxoplasma is a parasite that lives in what?
Kaylis [27]
The parasite can live<span> in the environment for many months and contaminate soil, water, fruits and vegetables, sandboxes, grass where animals graze for food, litter boxes, or any place where an infected cat may have defecated. </span>Toxoplasmosis<span> is an infection caused by a microscopic parasite called </span>Toxoplasma<span> gondii.</span>
7 0
4 years ago
What happens when a lineage splits into two or more lines of descent
kupik [55]

Answer;

B. Speciation

Explanation;

-Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.

-The demands of a different environment or the characteristics of the members of the new group will differentiate the new species from their ancestors.

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3 0
3 years ago
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faltersainse [42]

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Explanation:

3 0
3 years ago
Which of the following is related to the likelihood that a mother develops postpartum depression?
Veronika [31]

Answer:

Option D

Explanation:

Postpartum depression is majorly experienced in woman who has recently entered into motherhood. This form of depression arises because of the complications involved in a child birth. It is strongly driven by sudden changes that come up in the life of a woman after becoming mother such as – loss of job, responsibility of child, tight life schedule etc. some common symptoms of this problem include – mood swing, anxiety, sleeplessness, crying etc.  

Hence, option D is correct

4 0
3 years ago
Read 2 more answers
What are the 3 different shapes, or structures, or carbon base molecules?
ddd [48]

Answer:

Carbon based molecules have 3 main structures which are

straight chain

branched chains

rings

Explanation:

The structure or shape of carbon can be a straight chain, branched chained or in the form of rings. Examples of straight chain carbon includes propane, butane and pentane. Examples of branched chain carbons include members of the alkyl group like methyl and ethyl. Ring shaped carbons form structures in the form of rings like benzene which forms a six carbon ring. All these structures are made and dependent on the ability of carbon molecules to form four covalent bonds. Enormous, complex molecules can be formed by the binding of carbon chains to carbon rings. The carbon based molecules are very important as they are the basic buiilding blocks of life. Many important molecule like the DNA, RNA, lipids are made up of carbon atoms.

3 0
4 years ago
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