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ratelena [41]
2 years ago
9

Why were different organisms found on each island of the Galapagos?

Biology
1 answer:
sergey [27]2 years ago
7 0

Answer:

Their sunny equatorial position on the globe combined with their location amid the cool Humboldt and Cromwell ocean currents allows these special islands to display a strange mix of both tropical and temperate environments

Explanation:

I believe this is correct :')

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Griffith called the process he observed transformation because
Y_Kistochka [10]

Answer:

c. The harmless bacteria had been transformed.  

Explanation:

Fredrick Griffith carried out the first experiment that showed bacteria can get DNA by transformation in 1928.

He used two different strains of the bacteria Streptococcus pneumoniae a)type-III-S or smooth strain-Covered by a protective polysaccharide capsule hence lethal

b) type II-R or rough strain-Lacked the polysaccharide hence non-lethal

In his experiment he observed heat killed Type-III-S strain was not able to kill the mice. However, when its remains was added with rough strain then the blend was able to kill the mice.

When he collected blood  from the dead mice it had live strains of both smooth and rough type.

He came to a conclusion that non-lethal type II-R strain was transformed into lethal type II-S strain by a "transforming principle"  that was supposed to be the part of dead III-S strain bacteria.

3 0
3 years ago
All proteins are synthesized by ribosomes in the cell. some ribosomes float freely in the cytosol, while others are bound to the
Dennis_Churaev [7]
Ost proteins that function in the cytosol (such as actin) or in the nucleus (such as DNA polymerase) are synthesized by free ribosomes. Proteins that function within the endomembrane system (such as lysosomal enzymes) or those that are destined for secretion from the cell (such as insulin) are synthesized by bound ribosomes.
<span>As a protein destined for the endomembrane system is being synthesized by a ribosome, the first amino acids in the growing polypeptide chain act as a signal sequence. That signal sequence ensures that the ribosome binds to the outer membrane of the ER and that the protein enters the ER lumen.</span>
7 0
3 years ago
Humans infected with Brucella species develop ________ characterized by fever, chills, sweating, muscle aches, and headache.
Dovator [93]

According to the research, humans infected with Brucella species develop <u>brucellosis</u> characterized by fever, muscle aches, and headache.

<h3>What is brucellosis?</h3>

It is a bacterial and infectious disease caused by bacteria of the brucella genus whose reservoir of this bacterium are animals and, mainly, cows, sheep, goats and pigs.

The most frequent is the appearance of general symptoms, among which fever, chills, muscle aches, among others, predominate.

Therefore, we can conclude that according to the research, humans infected with Brucella species develop <u>brucellosis</u> characterized by fever, muscle aches, and headache.

Learn more about brucellosis here: brainly.com/question/13086367

#SPJ1

3 0
1 year ago
Describe some of the factors that have contributed to the success of seed plants
SpyIntel [72]
Heterospory, highly reduced gametophytes, ovules, pollen, seeds are the five adaptations common to all seed plants that ensure their success in the adaptation to land. Three things: The gametophytes of seed plants are reduced and dependent upon the parent sporophyte which protects them (particularly in the case of the female gametophyte). Pollen is covered with sporopollenin which is resistant to physical factors in the environment. The structure of the seed protects the next generation sporophyte and allows it to remain dormant until conditions are right for germination, development and growth.
6 0
3 years ago
Growth factors and cytokines both lead to tyrosine phosphorylation through receptors, but they do so through different mechanism
gladu [14]

Answer:

The growth factor receptors have a kinase domain while the Cytokines receptors do not contain a kinase domain as part of their structure.

Explanation:

The two are signaling molecules that control cell activities in some manners, such paracrine, endocrine and autocrine manners.

The receptor kinase domain can be specific for substrate sites in which phosphorylation occurs.

3 0
3 years ago
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