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SSSSS [86.1K]
3 years ago
9

What do echinoderms have instead of brains?

Biology
1 answer:
Ludmilka [50]3 years ago
3 0

Answer:

Instead of a brain, echinoderms have a ring of nerves located around their mouth area that governs their nervous responses. This ring coordinates their motion, their eating, basically anything that requires nerve control.

Explanation:

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for a particular flower the allele for red is domonaniant the allele for white is ressivepunnent square
Papessa [141]

Answer:

The correct answer will be option-The red and white flower alleles are co dominant.

Explanation:

The Mendel suggested that for any trait, the organism contains its alleles which could be dominant and recessive. But there are cases in which multiple alleles exist for the same trait which are neither dominant nor recessive.  

Two cases arise due to this in which both the dominant alleles co-exist and show their phenotype effect called "co-dominance" and when both alleles form a new phenotype called 'incomplete dominance".

In the given case, the self-pollination produces red, white and patched flowers as a result of co-dominance because both the alleles show the equal effect on the flower petals (mixed phenotype) and form a flower with red patches or spots on the flower.

Thus, the selected option is the correct answer.

4 0
2 years ago
__1__ is a climate cycle where the temperature of the __2__ Ocean changes because of movements of air and ocean currents. During
Mazyrski [523]

El Nino is a climate cycle where the temperature of the Pacific Ocean changes because of movements of air and ocean currents. During this period, the trade winds in the south weaken, causing the warm water to move from the Western region to the Eastern region.

El Nino climate cycle begins when warm water in the western tropical Pacific Ocean shifts eastward along the equator toward the coast of South America.

Opposite of El Nino is La Niña when the waters of the tropical eastern Pacific are colder than normal and trade winds blow strongly than usual.

7 0
3 years ago
Read 2 more answers
Which organelle is used as temporary storage for water, waste products, food, and other cellular material?
Fittoniya [83]

A vacuole

is responsible for temporary storage for water, waste products, food, and other cellular material.


Explanation:

Vacuoles are storage bubbles found in cells. They are found in each animal and plant cells however are a lot of larger in plant cells. Vacuoles may store food or any form of nutrients a cell may got to survive. they'll even store waste merchandise that the remainder of the cell is shielded from contamination.

8 0
4 years ago
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Does the moon or sun have the greatest impact of earth? and why?
sesenic [268]

Answer:

While the sun and moon both have tremendous impacts on earth, the sun definitely has the greater impact.

Explanation:

This is because while the moon's gravitational pull has a great effect on the ocean and tides, the sun literally heats up the planet to the exact inhabitable degree, as well as makes up our day/night schedule

8 0
3 years ago
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The harp seal lives on the polar ice sheets. Which adaptation makes it best suited for this environment?
Molodets [167]

they have adapted by regulating their body temperature in different ways.

5 0
3 years ago
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