3 years ago

HELP I NEED URGENT HELP! THIS IS DUE IN 5 MINUTES

1 answer:

7 0

It’s a marine/ sea sponge it is a underwater invertebrate. It is classified as animal . Also Sea sponges do not have cell walls or chloroplast typical of plants, but contain animal cells.

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DNA replication is said to be semi-conservative. Explain why this process has been described this way. Hint: Describe the proces

liraira [26]

DNA replication is semi-conservative because only one half of the DNA helix is replicated

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3 years ago

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5) Order and define these terms from smallest to biggest: Chromosome, Cell, DNA (The individual bases), Nuclei, Gene

noname [10]

Answer:

Cell > Nucleus > Chromosome > Gene > DNA

Explanation:

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2 years ago

All cells contain ion pumps that use the energy of atp hydrolysis to pump ions across the plasma membrane. These pumps create an

DiKsa [7]

Answer:

Facilitated diffusion

Explanation:

Facilitated diffusion pumps polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, cross the plasma membrane.
As sodium ion concentrations build outside the plasma membrane because of the action of the primary active transport process, an electrochemical gradient is created

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3 years ago

A cyclin called cyclin E forms a complex with a cyclin-dependent kinase called Cdk 2. This complex is important for the progress

Thepotemich [5.8K]

Answer:

B. The amount of unbound cyclin E is lowest as the cell enters S.

Explanation:

The reproduction of the cell is a cycle that it regulates by itself, depending the demand of a certain cell.

In the case of the mitosis, in Each change from G1 to S to G2 to M is regulated by some proteins like the cyclin.

In the case of the cdK2 is ncessary to pass the control point to pass from the stage G1 to the stage S.

Another characteristic of the cyclins, is that these proteins are synthetized and degraded constantly during the hole process.

Hope this is a useful info

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3 years ago

Re-arrange these pictures and put them in chronological order?

TiliK225 [7]

Bacteria
Amphibians
Reptiles
Mammals

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3 years ago

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