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ASHA 777 [7]
3 years ago
9

Many sexually active american adolescents fail to avoid pregnancy because

Biology
1 answer:
Damm [24]3 years ago
6 0
<span>Many sexually active american adolescents fail to avoid pregnancy because they are not educated on contraceptive methods. </span>
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Cnidarians and Ctenophores are alike in the following way: a) they are scavengers and parasites. b) they are both diploblastic.
alexandr1967 [171]

Answer:

Options B.

They are both diploblastic.

Explanation:

Cnidarians are group of aquatic animals that live both in fresh water and Marine water. They are distinguished by the possession of specialized cells called cnidocytes for capturing prey. They are radially symmetrical and have two body layers ectoderm and endoderm separated by jelly layer called mesoglea.

Examples are Hydra, corals, sea anemone and jelly fish.

Ctenophores are phylum of Marine animals that are found in every where. They are characterized by vast of cilia which is use for swimming. They are bilaterally symmetrical , they have mouth and don't have anus. They don't have respiratory, excretory and circulatory system. They are diploblastic i.e they have two body layers but some are triploblastic.

They have nemacyctes for capturing prey.

Examples are nuda, tentaculata e.t.c.

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Models are important in science. Some models are verbal models, which are full elaborate descriptions that can help someone visu
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The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.

<h3>What is the indirect evidence that helped us determine the layers?</h3>

Use of seismic waves is the indirect evidence that helped us determine the layers. When earthquakes occur they produce seismic waves.

The flow of matter occurs by convection. The dense crust subducts back into the mantle exert forces on crustal plates that then move, producing tectonic activity.

So we can conclude that The main layers of Earths interior are the inner core, the outer core, the mantle and the crust.

Learn more about earthquake here: brainly.com/question/248561

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What process is responsible for or leads to magma that is intermediate and often variable in chemistry, when erupted in the casc
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Intermediate magma is also known as andesitic magmas and these are created when an oceanic plate subducts beneath a continental plate. The magma is generated in the wedge of mantle rock beneath the crust. The Cascade Mountain Range is formed due to the subduction of the Juan de Fuca Plate beneath the North American Plate. 
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Which best describes a way that the periodic table is arranged?
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Among the ones listed above, the statement that best describes the way that the periodic table is arranged is "<span>The nonmetals are grouped together, which the exception of hydrogen.</span>" It can be seen that all of the nonmetals are placed on the far right of the periodic table except for hydrogen. They do not belong in a single column and are separated from the metals by the metalloids. Moreover, the elements are placed in the periodic table in increasing atomic number. 
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Which would have most likely stopped Mendel from finding a pattern in his results?
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If seed color and shape were located on the same chromosome

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