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2 years ago

Which observation supports the claim that the lophophore either evolved more than once or was lost in many lophotrochozoans?

1 answer:

8 0

The observation that supports lophophore evolved more than once is not all lophotrochozoans use a ring of ciliated tentacles for food collection and gas exchange.

<h3>What are lophotrochozoans?</h3>

Lophotrochozoans represent a well-defined group of animals that are characterized to be protostome species.

These animals (lophotrochozoanns) include different taxonomic groups such as, for example, worms or annelids, mollusks, brachiopods, Platyhelminthes, etc.

The lophotrochozoans represent a polyphyletic taxonomic group from a non-strictly evolutionary point of view but instead, composed of species that have a structure referred to as lophophore, a collection of ciliated tentacles surrounding the mouth.

In conclusion, the observation that supports lophophore evolved more than once is not all lophotrochozoans use a ring of ciliated tentacles for food collection and gas exchange.

Learn more about lophotrochozoans here:

brainly.com/question/14933416

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What did Jan ingenhousz show?

alexandr402 [8]

According to my research this is the answer: He showed that aquatic plants produced oxygen bubbles in the light, but did not in the dark. He also concluded that plants needed sunlight to produce energy

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3 years ago

Vasopressin and aldosterone secretion are part of the body's compensation for

boyakko [2]

ADH and aldosterone secretion are part of the body's compensation for A serious hemorrhage. Vasopressin or ADH is a hormone synthesized as a peptide prohormone in neurons in the hypothalamus and is converted to AVP. The primary role is maintaining osmolarity and thus maintaining the volume of water in the extracellular fluid, and the secondary function of ADH is raising blood pressure by constricting blood vessels. Aldosterone on the other hand is essential for sodium conservation in the kidney.

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3 years ago

Phosphorus (P) is the element with the atomic number 15. Which of the

viva [34]

Explanation:

Isotopes:

₁₅³¹P and ₁₅³²P

Given parameters:

₁₅³¹P ₁₅³²P

Mass number = 31 32

Atomic number = 15 15

The two atoms are isotopes. Now let us derive numbers of their subatomic particles

₁₅³¹P ₁₅³²P

Protons 15 15

Electrons 15 15

Neutrons (31-15) = 16 (32-15) = 17

Because they are isotopes, they differ in the number of neutrons alone.

Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of their neutrons.

We clearly see that the mass number and number of neutrons pertaining to the atom differs. This makes them isotopes.

Learn more:

Isotope brainly.com/question/1915462

#learnwithBrianly

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2 years ago

If the Earth didn't rotate, winds would travel in a straight line. But since the Earth does rotate, the

kari74 [83]

[ C. Coriolis Effect ]

If the Earth didn't rotate, winds would travel north or south because of the differences in pressure and temperature. The Earth does rotate, so, the Coriolis Effect diverts the wind to the left of the Southern Hemisphere and right of the Northern Hemisphere. The Coriolis Effect is very important because it creates cyclonic weather system.s

Best of Luck!

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3 years ago

someone please help me with Part A and B on biology please i really need help will give brainliest read hard and rotate phone i

finlep [7]

<em>Hi there, I come in behalf of jcherry99,</em>

So, first question -

This shouldn't be that much of an issue, since we have the text to help us out, but I'll try breaking it up into more simpler words:

The placenta is incide the uterus, where the baby starts forming. As you might already know, babies do not eat while they're inside woman's bellies:

So how do they feed?

They feed throught the umbilical cord.

So why is the placenta there? Why would the baby want anything apart from food?

The placenta, instead of trading food with the baby, regulates temperature, supplies it with nutrients, exchanges gas with the mother (which the mother later exchanges with the environment) and gets rid of waste.

And, food is not everything for a baby that is in the urge of developing complex muscles, bones, etc.

Second "question" -

I do not actually know what I'm supposed to do, since there is no question. But I can tell you this - the information contained in part B is correct:

The amnioic sac provides babies with a liquid which allows him to move freely in the uterus, which is very helpful. But, note that he doesn't start moving randomly, he is always in a fetus or similar-to-fetus position.

Hope it helped,

BioTeacher101

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3 years ago