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Olin [163]
3 years ago
14

HURRY ASAP I NEEDZ HELPZ

Biology
1 answer:
djyliett [7]3 years ago
3 0

It should be 50% and 25%.

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You take a human smooth muscle cell and block the release of calcium from the sarcoplasmic reticulum. What effect does that have
Murljashka [212]

Answer:

The correct option is E) Contraction still occurs because Ca2+ can enter the cell directly through Ca2+ channels in the plasma membrane and bind to calmodulin.

Usually, the calcium ions are released from the sarcoplasmic reticulum of a cell during a muscle contraction, but if those are blocked, the contractions is an cell can still arise through the calcium ions which are present in the cell membrane of a cell.

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3 years ago
Which of the following best compares the processes of mitosis and meiosis.
Advocard [28]
The answer is A. Mitosis results in daughter cells through one division cycle while meiosis results in haploid gametes through two division cycles.
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3 years ago
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What type of cross produces a 1:1:1:1 phenotypic ratio?
ser-zykov [4K]
Cross between "Homozygous Dominant" & "Homozygous recessive" would result in offspring of phenotype 1:1:1:1. When linkage is not occurs!

Hope this helps! It's quite complicated. So, Pm me in case of doubt!
Happy Studying :)
6 0
3 years ago
Which of these bones is classified as a flat bone?
denis-greek [22]

The last one (d)
Sternum

3 0
3 years ago
Which describes the missing step?
Nimfa-mama [501]

Answer:

The missing step is oxygen is removed from the water after step 3.

Explanation:

The steps listed by Xavier are:

  1. <em>Water is drawn in trough pores and enters the central cavity. </em>
  2. <em>Food is filtered and digested. </em>
  3. <em>Water leaves trough an opening at the top of the body.</em>

Porifera or sponges are aquatic, immobile invertebrates whose structure is saccular with an upper opening, the osculus.

Sponges absorb water through their pores, where the porocytes are found, and through flagellated cells -the coanocytes- the movement that allows the entrance of water to the spongocele or atrium is produced, in addition to the phagocytosis of organic elements.

Once the water is in the interior chamber of the sponges, the organic particles are phagocyted to be digested, and the oxygen is removed from the water, and passes through diffusion into the cell.  The waste products, as well as carbon dioxide, are released into the water that will be expelled through the osculus.

<u><em>In Xavier's list, the missing step is the removal of oxygen from the water, before it is expelled from the body of the sponge</em></u><em>.</em>

<em />

Learn more:

Sponge structure brainly.com/question/11256747

6 0
3 years ago
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