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3 years ago

Why is the jaw of a dogfish underslung? what disadvantages does it have? ...?

1 answer:

4 0

First off, the jaw itself, is capable of projecting an impressive 30% of the total head length, which is over 10% more than the jaw protrusion of a lemon shark. Also note the teeth of Squalus acanthias actually interlock to form an almost uniform cutting surface. Finally on either side of the jaw you have what is referred to as labial cartilage. These structures fold out as the dogfish projects its jaw, essentially causing the jaw to take on a tubular shape, which increases suction pressure as the shark opens its mouth. As the jaws close these cartilages snap back into place in folds along the side of the jaw, which is why spiny dogfish, smooth dogs, nurse sharks, and other sharks that make use of this mechanism have such distinctive “cheeks.” The disadvantage it has is that it cannot open its mouth too much.

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How is a cell membrane different to a cell wall

olchik [2.2K]

Answer:

humans cells do not have a cell wall but they have a cell membrane. only plants have it.

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3 years ago

Define zygote as it is used in biology

Kaylis [27]

Answer:

fertilized egg

Explanation:

Zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other animals, the zygote stage is brief and is followed by cleavage, when the single cell becomes subdivided into smaller cells.

Britannica

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3 years ago

Read 2 more answers

1. Algae are plantlike organisms that live in the water. These algae have been in sunlight for several

puteri [66]

The complete question is :

Algae are plantlike organisms that live in the water. These algae have been in sunlight for several hours now. What can the algae do because they are in sunlight? What does this mean for the number of energy storage molecules in the algae?The algae can . . .

take in carbon from the air. The carbon is used to make energy storage molecules.

take in carbon from the air. The carbon is used to break down energy storage molecules.

give off carbon to the air. Giving off carbon allows them to make energy storage molecules.

give off carbon to the air. Giving off carbon uses up energy storage molecules.

Answer: Option A

Explanation:

Algae are plant like organism found in water, they are capable of performing photosynthesis.

Th algae in water trap carbon dioxide from the atmosphere( water) in order to convert into energy molecules known as glucose in the presence of sunlight.

This means the number of energy storage molecules in the algae increases after photosynthesis.

This is how the algae uses sunlight in order to prepare glucose from them.

5 0

3 years ago

Ok plz help I been on this test for 2 days

JulsSmile [24]

Answer:

A is evaporation

B condensation

C precipitation

D runoff

E collection

please give me brainlyest

4 0

3 years ago

Research in behavioral genetics has shown that identical twins reared apart often have similar personality traits. this result s

serg [7]

Research in behavioural genetics has shown that identical twins reared apart often have similar personality traits. This result suggests that both genetic inheritance and environmental factors contribute to personality.

Personality traits are under a significant degree of genetic influence, usually influenced by a very large number of genes but environmental influences also play a strong role. The environmental factors tend to make family members more different from one another, not more similar.

3 0

3 years ago