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Brut [27]
2 years ago
10

Where would you expect to find the simplest body plans?

Biology
2 answers:
Y_Kistochka [10]2 years ago
7 0
Most sponge body plans are slight variations on a simple tube-within-a-tube design. which of the following is a key limitation of sponge body plans? sponges lack the specialized cell types needed to produce more complex body plans. the reliance on osmosis/diffusion requires a design that maximizes the surface area to volume ratio of the sponge. choanocytes must be protected from the hostile exterior environment. spongin cannot support heavy bodies.
Mars2501 [29]2 years ago
3 0

Answer:

4

&

the preserved remains of a living organisms

a dinosaur footprint found in a rock layer

a mosquito from 65 million years ago trapped in sap

Explanation:

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The _______ system breaks down the food we eat, while the _______ system transports the tiny food particles to each cell in the
Mrac [35]
The digestive system breaks down the food we eat while the circulatory system transports the tiny particles to each cell in the body.
4 0
2 years ago
¿Cómo es posible que se hayan encontrado antiguos sedimentos glaciares en zonas como la India situada junto al ecuador?
Lana71 [14]

Answer:

Si los continentes no se han movido, entonces esto sugeriría una capa de hielo que se extendía desde el polo sur hasta el ecuador en este momento, lo cual es poco probable ya que el Reino Unido en ese momento también estaba cerca del ecuador y tiene extensos depósitos de carbón y piedra caliza. Si los continentes del hemisferio sur se vuelven a ensamblar cerca del polo sur, entonces la capa de hielo Permo-Carbonífero asume un tamaño mucho más razonable. Más evidencia proviene de las estrías glaciales, arañazos en el lecho rocoso hechos por bloques de roca incrustados en el hielo como el glaciar se mueve. Estos muestran la dirección del glaciar y sugieren que el hielo fluyó desde un solo punto central.

7 0
2 years ago
In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain
aleksandrvk [35]

Answer:

C. a decrease in phospholipid fatty acid side chain length and a decrease in side chain saturation

Explanation:

Temperature is a factor that has a huge impact on cell membrane structure, more precisely its fluidity. So, for example, if temperature increases, the cell membrane becomes more fluid because the fatty acid tails of the phospholipids become less rigid.

5 0
2 years ago
A student drew the following flowchart to show the movement of nutrients.
sertanlavr [38]

Answer:  b. burning fossil fuels

Explanation:

3 0
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Under the right circumstances, the lysogenic cycle changes to the lytic cycle. Explain whether the lytic cycle can change to the
kap26 [50]

Answer:

The correct answer is - no it cant not change from the lytic cycle to the lysogenic cycle.

Explanation:

In the lysogenic cycle, phage DNA is fused into the host genome, where it is moved to the next generation with the host genome. Natural stressors, for example, exposure to toxic compounds or starvation may cause the prophage to extract and enter the lytic cycle where the virus burst or kill the host genome.

So, in the lytic cycle virus kills the host cell s there is no chance or need to change into the lysogenic cycle as whereas in the lysogenic cycle virus incorporated with the host and becomes a chromosome.

7 0
2 years ago
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