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andrew11 [14]
2 years ago
6

In ivan pavlov’s classic experiments, what type of stimulus was the bell?.

Biology
1 answer:
Inessa [10]2 years ago
8 0

Answer:

because he was good

Explanation:god gave him powerful

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A student is studying the structural details of an animal cell, a plant cell, and a prokaryotic cell. He notes that a prokaryoti
sveticcg [70]

Answer:

What are the answer choices?

Explanation:

If there are none, say that prokaryotic cells have a cell wall, large vacole and chloroplast.

8 0
3 years ago
If an abnormal rearrangement or alignment of the bones results from a fracture, it is called a __________ fracture.
Naddika [18.5K]

The displaced fracture is caused when the bone breaks into two or more parts and the bones are no longer in alignment with each other. These broken bones becomes abnormally arranged. Normally, these fractures are caused due to trauma. The bone breaks or cracks, and gets displaced from its original position, and then it gets arranged in the abnormal position.

Hence, the blank can be filled with 'displaced'.

5 0
3 years ago
Read 2 more answers
Carbon-14 has a half-life of 5730 years. A sample of wood has been recovered by an archaeologist. The sample is sent to a labora
givi [52]

Answer: 4282.928 = 4283 years

Explanation:

Data given;

Carbon 14 half life = 5740

No (initial radiation) = 0.230 Bq/g

Nf (final radiation) = 0.137 Bq/g

First we find the decimal fraction of the remaining half life of the carbon 14

k = No / Nf

k = (0.137 / 0.230) = 0.595652

So to find how many half-life has elapsed, we say

(1/2)^n = k

(1/2) ^n = 0.595652

Therefore

n log 0.5 = log 0.595652

n = ( log 0.595652) / ( log 0.5)

n = 0.747457

To get the elapsed time or how old the sample is;

We say

Carbon 14 half-life × n

5730 yrs × 0.747457

= 4282.928

= 4283 years.

So the sample of the wood is 4283 years old.

4 0
3 years ago
What is the goal of the Psyche mission?
Readme [11.4K]

Answer:

i think its c

Explanation:

8 0
3 years ago
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How does the thyroid gland help maintain and regulate calcium?
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Answer:

When the calcium level is high in the bloodstream, the thyroid gland releases calcitonin. Calcitonin slows down the activity of the osteoclasts found in bone. This decreases blood calcium levels. When calcium levels decrease, this stimulates the parathyroid gland to release parathyroid hormone.

4 0
2 years ago
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