This is a type of symbiosis where one organism benefits but the other is hurt.

Do thinner sediment layers on the ocean floor mean the seafloor is older or younger in those areas?

marshall27 [118]

probably younger.----less sediment would mean less time.

3 0

2 years ago

•how are the organs of plants adapted to perform essential functions?

lions [1.4K]

Every plant organ is adapted to its function. For example, leaves that are big and flat absorb plenty of sunlight for photosynthesis. Long roots keep a tree stable and take water from deep in the soil. Some plants have unusual adaptations.

3 0

2 years ago

Two organisms live in the same geographical area, are very similar genetically, and can breed with each other successfully. Whic

charle [14.2K]

Answer: Option C

Explanation:

When two genetically similar species can breed among each other in order to produce a fertile offspring then it is known as members of same species.

The offspring that is produced must be fertile in order to extend the members in the same species.

Two organism can breed because they are genetically similar and the similarity allows the organism produces a fertile offspring.

3 0

3 years ago

"Synthesis of one protein cannot take place without the presence of another protein." Is this statement true or false and why? T

lbvjy [14]

The third option:This statement is true because every step in protein synthesis requires enzymes, which are nothing but proteins.
I mean if you look at rRNA which is needed to make polypeptide chains, it is 2/3 protein, and then the helices, ss binding proteins, DNA polymerase and everything in transcription is protein.
So that last option/ third option is the best

8 0

2 years ago

A complete plant gene containing four introns and five exons is carried on a 6.0-kb DNA fragment. DNA sequencing analysis finds

damaskus [11]

Answer and Explanation:

the total length of the gene is 6,000 base pairs (or) 6.0 kb and it has five exons, four introns and a 1,000 base pair length flanking region for the transcribed region.

Hence, each exon has (1500/5) = 300 by

each intron has (3500/4) = 875 by and

flanking segment (5' and 3') length for the transcribed region would be (1000/2) = 500 bp.

The gene segment is as shown in the 1st diagram attached below

In eukaryotes, transcription takes place in the nucleus which results in the synthesis of hnRNA (heteronuclear ribonucleic acid). This hnRNA (pre-RNA) has both introns and exons, however when it is synthesized or while it is being synthesized the Spliceosomal complex removes introns from hnRNA and becomes converted into mRNA (messenger RNA) in the nucleus itself.

(second diagram explains further)

Now the synthesized mRNA reaches the cytoplasm. So, if mRNA collected from the nucleus and cytoplasm will have the same length of about 2,500 base pairs only. Therefore, after the commencement of northern blot analysis both mRNA will yield the same kind of result and have unique length.

8 0

3 years ago