The answer is C, campfire, star, and the sun.
<span>In the passive transport, the diffusion takes place down the concentration gradient of a solute, and do not require the wxpense of energy. But sometimes, carrier proteins are used for transport of the substances who can not cross the membrane, on their own, such as water and carbon dioxide. They are polar and have some charge, therefore, are not able to cross the hydrophobic membrane without carrier proteins. So, your answer is D.</span>
I think the best explanation would be that the transgene integrated into a heterochromatic region of the genome. Heterochromatin are chromosomal regions of the genome that lack high numbers of genes while chromosomal regions contain high concentrations of transcribed genes and make part of the relaxed euchromatin. A transgene is a genetic material that has been transferred naturally, or by any of a number of genetic engineering techniques from one organism to another.
Answer;
Mutualistic symbionts
The cattle and the microorganisms are mutualistic symbionts.
Explanation;
Symbiosis involves the interactions of two species living together; it may be mutualistic, parasitic or commensal.
Mutualism is a type of symbiotic relationship where both organisms involved benefit from the interaction.
For instance in this case; between cattle and microorganism; Cattle depend on microorganisms in their digestive tract to digest the cellulose in their diets, and in turn microoganisms gets nutrients and habitats from the cattle.
The pyrenoids are located in the chloroplast
