What molecule enables large molecules to cross the membrane?

How do geologists explain the occurrence of similar fossils of land organisms on different land masses separated by large bodies

levacccp [35]

Answer:c

Explanation:

Swag

3 0

3 years ago

within a forest ecosystem, there is a large amount of diversity among members of a warbler species. of the following stages of m

anzhelika [568]

Crossing over occurs between homologous chromosomes, and is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.

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There are different mechanisms involved in producing genetic variation among descendants. These are,

Crossing-over between homologous chromosomes (prophase 1),

Random lining of homologous chromosomes (metaphase 1),

Random fertilization

The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.

The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.

After crossing over, homologous chromosomes get separated again.

In the attached imaged there are four different stages of meiosis.

Stage C is the one that contributes the most to diversity.

We can see that crossing over has already occurred between homologous chromosomes, and they have already interchanged segments.

In the image you will see the difference between chromosomes that has gone through the crossing over mechanism, and chromosomes that has not. The difference in color represents segments interchange and variation.

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You can learn more about crossing over at

brainly.com/question/12911831?referrer=searchResults

brainly.com/question/394891?referrer=searchResults

6 0

2 years ago

Genes produce ___,as well as RNA intermediates a. DNAb, proteinsc.lipidsd.carboydrates

kow [346]

The answer for this question is a. DNA

8 0

4 years ago

What does CITES Appendix 1 states for clouded leopards?

Natalija [7]

Clouded Leopard are less abundant range wide than when last accessed in 2007. Some range countries have maintained status quo Clouded Leopard abundance, however, the majority of range countries have experienced moderate declines, with serious declines noted for Myanmar, Viet Nam and China. The causes of Clouded Leopard declines are attributed primarily to (1) direct exploitation, (2) range fragmentation, and (3) reduction in habitat quality. Clouded Leopard exploitation for pelts is well documented in several countries, including the infamous Tachilek market along the Thai–Myanmar border. The frequency of Clouded Leopard parts available at market indicates increased pressure from hunting (Oswell 2010). Ongoing deforestation in countries such as Myanmar and Cambodia is also leading to increased fragmentation and reduction of optimal habitat for Clouded Leopard.

5 0

3 years ago

Which of these is not considered a potentially hazardous food?

Leni [432]

Answer choices please

8 0

3 years ago