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aliya0001 [1]
2 years ago
8

What types of molecules can move directly across the cell membrane?

Biology
1 answer:
astraxan [27]2 years ago
5 0

Answer:

Small hydrophobic molecules and gases.

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A bacterium that you isolated from pond water appears to use light for energy. Based upon this information, you inoculate the or
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There was no sulfur compound added to the medium, that could be used as an electron donor.

Explanation:

Bacteria that use light for energy requirements mean that they get their energy from photosynthesis and transferring energy through the molecules.

Bacteria play a major part in the reductive and oxidative cycle of the sulfur which is mediated by the help of photosynthetic bacteria, so the sulfur or sulfur compounds are major requirements for their growth in the habitat or the medium.

Thus, the correct answer would be- There was no sulfur compound added to the medium, that could be used as an electron donor.

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How do the cells in a fish react when moving from saltwater to freshwater?
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Which of the following statements best exemplifies the difference between a population and an individual?
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d. All of the above exemplify the difference between a population and an individual.

Explanation:

A population is a group of individuals of the same species that live in a particular geographical area and are able to interbreed. A population is described with respect to several features such as death and birth rates, age structure, density, dispersion, change in the population size due to density-dependent and density-independent factors and the survivorship curve.

These features are not exhibited by a particular individual. Natural selection also works at populations. The evolutionary forces act upon populations to change their allele and genotype frequencies. Therefore, populations are the unit of evolution and change genetically over time, not the individuals. Population ecology studies the size of a populations and the trends and causes of changes in the populations over time.

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PPPPPPLLLLLLLLEEAASSSEE HHEEEELLLP MEEEEEE!!! Which of the following is used as evidence in supporting the idea that life change
lora16 [44]
<span> the time period in which an embryo develops</span>
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The parasympathetic division of the autonomic nervous system is defined as the ________
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