Roundworms have _____ muscle that helps them move.striated
circular
longitudinal
retractor

Answers

Answer 1

Answer:

The correct answer is longitudinal.

The streamline body of roundworms allows them to move and glide in the soil. The longitudinal muscles of the body of roundworm contracts and relaxes that allows them to move forward. The roundworm becomes wider or it bends from one side and pushes its body to move forward.

Answer 2

Answer:

Final answer:

Roundworms have longitudinal muscle that assists in their movement. Their unique muscle arrangement contributes to their characteristic side-to-side motion.

Explanation:

Roundworms, scientifically known as nematodes, possess a distinctive muscle system crucial for their locomotion. Unlike many other organisms that rely on both longitudinal and circular muscles for movement, roundworms exclusively depend on longitudinal muscles that run along the length of their bodies.

These longitudinal muscles contract and relax in an alternating fashion, generating a characteristic thrashing motion that propels the worm forward. Interestingly, roundworms lack circular muscles altogether, which sets them apart from various organisms.

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What is the advantage in animals coupling nitrogenous waste excretion to osmolarity regulation?

When blood supplies oxygen and food to a cell surface and these molecules diffuse across, we might expect some "resting time." However, if we inspected most cell membranes in a living human body, we would find a nearly continuous flow of substances back-and-forth across the plasma membrane. Which of the following is not a reason why? a) Cell metabolism is constantly using up oxygen and raw materials; this lowers their concentration so more will diffuse into the cell. b) Cell metabolism is constantly producing waste molecules; this increases their concentration so more will diffuse out of the cell. c) Cells produce useful secretions; this increases their concentration and more will diffuse out of the cell. d) Cell metabolism constantly produces carbon dioxide in respiration; this increases its concentration so more will diffuse out of the cell. e) Cells are living entities and in order to live can never "rest".

Answers

Answer:

Option (e).

Explanation:

Blood is the main connective tissue of the body. Blood helps in the transport of oxygen, nutrients and the excretory product of the body. Blood also provides immunity as it contains white blood cells.

The resting time is expected during the diffusion process. But the substance continuous back and forth in the body. This is because cells are the main living entity of the organism. The cells are never at rest in order to live and their resting time is not possible.

Thus, the correct answer is option (e).

HELP ASAP!!!True of False:
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Answers

False. Species can have a different number of chromosomes.
Ex: Humans have 46 chromosomes, while dogs have 39

How do enzymes speed up chemical reactions

Answers

They lower the activation energy, that is required for a specific process.

The enzyme works like a lock and key, where the lock is the enzyme that gets activated by a molecule the "key". Once they bind to each other the process gets started.

Without enzymes the process would have to occur entirely on it's own.

Answer

By lowering energy of activation of the reaction.

Explanation

High energy produced during the metabolism of reactant to product. Due to the large free energy of activation, the speeds of uncatalyzed biochemical reactions are often exceedingly slow. Enzymes lower this energy of activation so that more molecules have adequate energy to carry into the transition state to speed up the rate of reaction.

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Answers

Answer:

So they Can work better and quicker

The ______ force is equal to the weight of the fluid displaced by an object. gravitational friction buoyant

Answers

The buoyant force is equal to the weight of the fluid displaced by an object when the object is submerged into a liquid. Gravitational force is the force of gravity, and friction is the force created when two objects rub up against one another when at least one of the objects is in motion.

This means the liability force of an object is equal to the weight of the fluid displace by a particular object

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