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kirill [66]
3 years ago
6

The role of a radula is to bring oxygen into the animal. true of false

Biology
2 answers:
SpyIntel [72]3 years ago
8 0
This is True........
Elan Coil [88]3 years ago
5 0
True...........................
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Give one example of an extrinsic homeostatic mechanism overriding an intrinsic homeostatic process.
NeTakaya

Answer:

Extrinsic regulatory mechanisms are external and depend on the firing of some factor outside the population itself. Among them are interspecific competition, food and space restrictions, very strong climatic variations, weathering and inharmonious relationships with other populations (parasitism and predatism).

Good examples of interspecific competition appear when rabbits, caves, rats compete for the same plant, or different fish and birds, such as the heron, vie for the same species of smaller fish. This is because these different species keep their populations in the same ecological niche. Competition is often so strong that some species eventually, as one example of an extrinsic homeostatic mechanism overriding an intrinsic homeostatic process is their disappearance or migration to other regions.

In this competition, the presence of adaptations among individuals in the population that promote better food search, speed, vision, and others can make the difference between elimination and survival.

8 0
3 years ago
What do you call the end of a straw wrapper that a waiter leaves on your straw when serving your drink?
daser333 [38]

The waiter tears the raised part of the straw wrapper a few inches from either end and he pulls until a piece of the wrapper is entirely removed. The exposed part of the straw is what is then placed in the drink, leaving the remaining wrapper for the customer to remove himself. This will assure the customer that the waiter has not touched the straw with bare hands. The part of the straw that has remained is called a straw lace, or a drinking straw sleeve or a strawphylactic.

4 0
3 years ago
During a visit to a hospital, a child receives the oral polio vaccine. He then returns to his distant village. Sometime later a
dybincka [34]

Answer:

Because the child was vaccinated against this disease, the germs are not able to travel from one person to the other, and the family in this case, is less likely to get the disease. Even his siblings, that didn't get the vaccine, will get some protection from getting sick. This is known as community immunity.

Explanation:

6 0
3 years ago
1. Seahorses change color and swim together in predetermined ways before mating. These behaviors are called (1 point)
VARVARA [1.3K]
1. courtship rituals 2. attract a mate 3. internal fertalisation occurs inside the feamales body whereas external fertalisation occurs outside the feamales body 4. <span>Gametes may get washed away 5. the devoloping zygote is protected</span>
7 0
3 years ago
¿Que aspecto debemos considerar para desidir el uso mas adecuado de lagunos materiales en la satisfacción de necesidades humanas
umka21 [38]

Answer:

El efecto del material sobre el medio ambiente es el aspecto a considerar.

Explicación:

Se debe verificar la estructura química del material o de qué elementos se forma un material para conocer el efecto de estos materiales en la salud y el medio ambiente de las personas. Si los materiales no afectan el medio ambiente y la salud humana, el ser humano puede utilizarlos para satisfacer sus necesidades. Si el material se forma a partir de elementos tóxicos o elementos que no se descomponen por microbios, entonces este tipo de materiales son peligrosos tanto para la salud humana como para el medio ambiente porque estos materiales contaminan el medio ambiente y debido a esta contaminación la salud humana se ve gravemente afectada.

3 0
2 years ago
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