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elixir [45]
3 years ago
6

How are sponges alive and living?

Biology
1 answer:
FromTheMoon [43]3 years ago
4 0

Answer:

Sponges live at every depth in both marine and freshwater environments, and under a variety of conditions. They are "sessile" animals (they don't move around) and they live by pumping large volumes of water through their bodies and filtering out tiny organisms and organic particles as food

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How does ozone depletion affect the temperate deciduous forest
Deffense [45]

Answer: Climate change is as well a great danger to the deciduous forest. When other types of chemicals are released in the air the wind, rain, clouds and temperature. This can ambush chemicals and has the ability to move them across the forest causing different weather patterns. In drastic conditions this can become permanent.

6 0
3 years ago
How is cell signaling similar to metabolic pathways such as cellular respiration?
konstantin123 [22]

Answer:

Many cellular processes use similar mechanisms to achieve different goals.

Explanation:

<em>Metabolic pathways are series of enzyme-catalyzed reactions. Enzymes interact to remove and add phosphate groups to molecules or to move protons across a membrane. The same as in cell signalling, where the receptor proteins interact with specific molecules and often remove or ad phosphate groups. The phosphorylation of receptor proteins is very close to the process steps in metabolic pathways but with a very different function. </em>

<em>In metabolism phosphorylation is a method of transferring energy, in cell signalling it transmits information.</em>

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In the meselson-stahl experiment, cells were grown for one generation in growth medium containing a relatively heavy nitrogen is
elena55 [62]

Out of the following give choices;

a. All DNA strands contained only the heavy nitrogen isotope.

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c. All DNA strands contained both heavy and light nitrogen isotopes.

d. All DNA strands contained only the lighter nitrogen isotope.

The answer is b. Meselson–Stahl experiment demonstrated the semi-conservative model of DNA replication. When DNA is replicated, one strand of the new double helix strand is the parent's strand while the other is the newly synthesized one. This made the semiconservative model stand out over the other two, dispersive and conservative models.






7 0
3 years ago
‌‌How‌ ‌can‌ ‌competition‌ ‌contribute‌ ‌to‌ ‌evolution‌ ‌through‌ ‌‌natural‌ ‌selection‌?‌ ‌
lisabon 2012 [21]

Answer:

Competition is an interaction between organisms or species in which both the organisms or ... According to evolutionary theory, this competition within and between species for resources is important in natural selection. However, competition may ... Competition can cause species to evolve differences in traits.

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