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Arlecino [84]
3 years ago
8

What evidence supports Hess's theory of seafloor spreading?

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

Answer:

Evidence of Sea Floor Spreading Harry Hess’s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory. This evidence was from the investigations of the molten material, seafloor drilling, radiometric age dating and fossil ages, and the magnetic stripes.

Explanation:

(winks and runs off)

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What second messenger most directly causes calcium ions to be released from intracellular stores?
NemiM [27]

Answer: adenylyl cyclase inositol triphosphate mainly known as IP3 causes the release of Calcium ions directly from the inracellular stores and causea contraction.

Explanation:

IP3, inositol phosphate is a second messenger a signaling molecule. It is made by hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2), a phospholipid that is located in the plasma membrane, by an enzyme phospholipase C.

IP3 binds to the calcium channels and opens Ca2+ channels that are embedded in the ER membrane, releasing Ca2+ into the cytosol. Calcium ions released may cause contraction and regulate the Ca2+ channels in the membranes.

6 0
3 years ago
What characteristics do all animals share
Free_Kalibri [48]

Answer:

- Animals are multicellular.

- Animals are made up of cells that do not have cell walls.

- Most animals reproduce sexually. Some are capable of asexual reproduction by fragmentation, budding, or parthenogenesis.

- Animals are capable of motion in some stage of their lives.

Explanation:

4 0
3 years ago
What is the mean of the data set [3,2,2,12,6,5,14,4]?<br><br>A.2<br>B.4<br>C.6<br>D.7
zysi [14]

Answer:

6

Explanation:

To find the mean of a data set, add all the values in the set together, and then divide the result by the number of values in the set.

3 + 2 + 2 + 12 + 6 + 5 + 14 + 4 = 48

There are 8 values in the data set.

48/8 = 6

So the mean of the data set is 6.

8 0
3 years ago
How many cells make up a unicellular organism?
Masteriza [31]
A unicellular organisms only has ONE cell
5 0
3 years ago
Read 2 more answers
Sickle sale is a disease in an offspring which is caused by abnormal type of red blood cell Jean inheritance from the parents wh
Zanzabum

Answer:

Sickle sale is a disease in an offspring which is caused by abnormal type of red blood cell Jean inheritance from the parents what is the name for different forms of the same gene?

Mutation HBB gene

Explanation:

4 0
3 years ago
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