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OlgaM077 [116]
2 years ago
8

Which of the following statements regarding the endomembrane system is false? The endomembrane system is involved in the synthes

is, storage, and export of important molecules. The endomembrane system includes the rough and smooth endoplasmic reticulum. The endomembrane system includes the nuclear envelope. The endomembrane system is a system of interrelated membranes that are all physically connected.
Biology
1 answer:
MArishka [77]2 years ago
7 0

Answer:

Option (4).

Explanation:

Endomembrane system is may be defined as the sysytem that divides the cell into functional compartment or organelle. The organelle of endomembrane system are nuclear envelope, rough and smooth endoplasmic reticulum, golgi body, lysosomes, vesicle and plasma membrane.

Endomembrane system contains different membranes of cell organelle are suspended in the cytoplasm of the eukaryotic cell. Tge endomembrane system helps in synthesis, packaging and export of important proteins and molecules.

Thus, the correct answer is option (4).

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The expansion of grasses during the Oligocene and Miocene Epochs led to
tresset_1 [31]

Answer:

The answer is:

D. the radiation of herbivores such as grazing animals

Explanation:

Oligocene and Miocene Epochs:

  • The Oligocene epoch is characterized by temperate and subtropical climatic conditions which favored the expansion of grasses and reduced forest cover.
  • The Miocene epoch, which succeeded the Oligocene era, is attributed to changes in global circulation due to global warming of the climate followed by global cooling towards the end.

The Oligocence and Miocene epoch are both attributed to the expansion of grasslands and savannah. Both eras marked rapid and drastic evolutionary changes in grazing mammals and herbivores. Diverse groups of grazing mammals lived throughout these eras. For example, the largest herbivore and land mammal of all time, <em>Indricotherium</em> (a sort of giant hornless rhinoceros), was present in the Oligocene era.

Similarly, the Oligocene era in North America favored the rapid radiation of primitive horses.

8 0
2 years ago
A mutation is made once in every nucleotides copies
dimaraw [331]

Explanation:

A mutation is made once in every <u>10 billion</u> nucleotides copied.

During the process of cell division, spontaneous changes within the genome can arise. These mutations are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes.

 

Further Explanation:

 

During reproduction other events, such as crossing over during mitosis and meiosis, mutations lead to increases in genetic variation. This variation refers to the genetic characteristics present within a species. Mutations may be either beneficial or deleterious; they are maintained within cells, as they form new traits called alleles. Beneficial mutations may confer traits that increase the fitness of a species, along with ensuring survival by conferring a protective advantage- these phenotypic differences between organisms are called adaptations.

 

Sequences of DNA make up genes which can have different forms called alleles. DNA, which makes up the genotype, is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins which make up the phenotype of an organism. Mutations in DNA sequences affect the corresponding mRNA and thus the protein encoded.

 

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

5 0
2 years ago
How does an area's weather differ from the area's climate?
Shalnov [3]
Weather is the area's day-to-day conditions and climate is the area's average conditions. a natural phenomenon that maintains Earth's temperature range.
7 0
2 years ago
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Predict what will happen to a fish if its gills are torn after being caught in a net.<br>​
viva [34]

Answer:

It will die.

Explanation:

Fish need functional gills to live.

7 0
2 years ago
The pmi for remains of a body enclosed in a plastic bag could best be estimated by
scoundrel [369]
The post mortem interval of a body enclosed in a plastic bag could be best estimated by the insects found in the body, in that case forensic science need to listen to what those little creatures have to say, insects could tell if the body has been moved from the crime scene, how long it´s been in an specific place, and how long it´s been since death until found, every group of insects can tell something different, from worms, arachnids to flyes, each one of them has a time to get into the body, so it could tell you for how long it´s been dead.
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