Answer:
active transport
Explanation:
they are using energy to move across the membrane, using energy means its active Hope this helps
Environments likely to be characterized by the presence of dry scrubs and frequent wildfires are those that lack the presence of rain and suffer high sunlight hours.
When referring to the terrestrial biomes that meet the characteristics described, we can include:
- <u>Temperate grasslands</u>
- <u>Cold deserts</u>
The temperate grassland/cold desert biomes have:
- cold and dry winters
- hot, dry summers
- Extended sunlight hours
This biome is very dry, and the harsh weather makes it difficult for plants to grow, leading to their <em>dry scrub</em> characteristic. This biome also experiences frequent wildfires due to the <u>intense sunlight and lack of rain to which it is exposed.</u>
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Answer:
NeanderthalsThese artistic innovators were probably Neanderthals. Dated to 65,000 years ago, the cave paintings and shell beads are the first works of art dated to the time of Neanderthals, and they include the oldest cave art ever found
Explanation:
Which hominids created art? The first human artist on Earth is believed to have drew on a cave wall with red ochre over 65,000 years ago, as a Neanderthal reached out and drew on it. There is no evidence that the modern human is the only species to express itself through art, as is widely believed.
The answer is B, fossil fules
This can be demonstrated by using an acellular environment to observe the 32P label entering phosphatidylethanolamine (PE) molecules by direct exchange.
Phosphatidylethanolamine (PE) is a major lipid component of cellular membranes in a wide range of organisms.
A scientist proposed that the 32P label was entering PE molecules by direct exchange, this can be proved using acellular environment.
In acellular environment, there aren't any bacterial cells to synthesize new PE. So if the 32P is incorporated into the PE in the acellular environment that means the proposed idea in the question stem is correct.
If no 32P is incorporated into PE in the acellular environment, then that means proposed idea is not correct.
Disclaimer: The question is not completed.
A scientist proposed that the 32P label was entering PE molecules by direct exchange (swapping phosphate groups with those found in solution) and NOT through synthesis of new PE by bacterial cells. What experimental modification can show this is NOT the case?
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