Answer: 1. B. mutualistic symbionts.
Explanation:
A mutualistic symbiotic relationship is the one in which the two species lives in close association and both of the species obtains the benefit of living together.
Cattle depend on microorganisms in their digestive tract to digest the cellulose in their diets is the example of mutualistic symbiotic relationship. This is due to the fact that cellulose is a biomolecule which is obtain in leafy diets of the cattles. This is difficult to digest by the digestive system of the body of these cattles therefore, the function of digestion is performed by the microbes present in the digestive tract. Both of the organisms attains nourishment after this process.
Answer: 2. D. more likely to have a digestion tract than to have a gastrovascular cavity.
The complex animals are expected to have a complex digestive system. The gastrovascular cavity secretes digestive juices which aids in the process of digestion.
B. An oak tree grows from the seed material in an acorn.
C. Water drips from underneath an oak tree leaf in the morning.
D. Sediment from an area where oak trees were cut down builds up alongside a stream
The example that demonstrates that all cells come from pre-existing cells is an oak tree grows from the seed material in an acorn (option B).
The cell theory is the scientific theory that all living organisms are made of cells as the smallest functional unit.
One of the components of the cell theory is that all cells come from already existing cells i.e. new cells form from cells that are already in existence in a process of reproduction.
The example of this is a tree that grow from a germinating seed. Hence, option B is correct.
Learn more about cell theory at: brainly.com/question/1468725
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Answer:
lol idk
Explanation:
b. False
NUCLEIC ACID you welcome
true or false
Answer:
True
Explanation:
The nitrogen fixation is a process that involves conversion of atmospheric nitrogen to nitrates in the soil. This process is mainly performed by nitrogen-fixing bacteria present in the soil.
The nitrogen fixation is important for plants and animals. The nitrogen present in the atmosphere cannot be used directly by animals and plants. The nitrogen is main constituent of chlorophyll that is required for the process of photosynthesis and for amino acids that synthesize proteins. Thus, Nitrogen fixation makes nitrogen gas useful to crops.