Select all that apply. _____ trigger other proteins and enzymes to stimulate cell division. External and internal stimuli Regulating protein agents Activators and inhibitors Metabolic pathways

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Answer 1

Answer:

The right answer is Regulating protein agents.

The regulating protein agents they are talking about is certainly the cyclin, especially cyclin B.

Cyclins have no enzymatic activity, they are regulatory proteins necessary for Cdk to be enzymatically active.

The activation of the Cyclin B / Cdk1 stock is the result of a series of complex and interdependent reactions:

When replication is complete, the Cdc25 phosphatase is no longer sequestered in the cytoplasm and passes into the nucleus, and at the end of the G2 phase, the Cdc phosphatase is activated, probably by phosphorylation by the Polo kinase. Cdc 25 then acts to remove the two phosphates inhibitors Cyclin B / Cdk 1 (after that, there is a process of self-activation).

Cyclin B / Cdk 1 complexes, once activated, allow entry into mitosis. For this, they intervene by triggering a number of phenomena that take place at the beginning of mitosis, that is to say in prophase.

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Why did the video use the word evolve to describe the change that occurred from unicellular to multicellular life on earth

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Evolve is a term used to describe how one thing changes and become a higher form of itself so by saying that a multicellular change occurred from a unicellular change Then the correct term would be to say that it evolved

Answer: Like the unicellular organisms that came before them, multicellular organisms developed when conditions were ideal for their development. The rise of multicellular organisms allowed for Earth to develop, or evolve, a wide range of life forms.

What occurs during sexual reproduction

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Explanation:

Asexual reproduction occurs by cell division during mitosis to produce two or more genetically identical offspring. Sexual reproduction occurs by the release of haploid gametes (e.g., sperm and egg cells) that fuse to produce a zygote with genetic characteristics contributed by both of the parent organisms.

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All living things must container homeostasis

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true.

are made of one or more cells.

need energy to stay alive.

respond to stimuli in their environment.

grow and reproduce.

maintain a stable internal environment.

The maximum number of sperm that can fertilize one egg is one, in order to yield a chromosome condition..

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Diploid chromosome

Hope this helps!

-Payshence

cnidaria is a phylum consisting mostly of marine, aquatic animals. What types of organisms are included in this phylum?

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Answer:

Physalia

Adamsia

Pennatula

Gorgonia

Meandrina

Your cell takes in oxygen, water and food. What is one waste products that leaves your cells?

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One thing I looked up and saw was urine and carbon dioxide.

Lactic acid and carbon dioxide

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