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e-lub [12.9K]
3 years ago
8

A fish fossil is found in a rock. A foot bone and tooth are found in an older layer of the same rock. What can scientists learn

from the rock?
A) The area changed from land to water.
B) The area changed from water to land.
C) The area has always been land.
D) The area was once an ocean.
Biology
1 answer:
sesenic [268]3 years ago
4 0
A. land to water is the answer.
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The population change equation is Population Change = (Natality - Mortality) + (Immigration - Emigration). Which equation would
Snezhnost [94]

Answer:

B. natality + immigration = mortality + emigration

Explanation:

Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination in search of better living conditions, work or social amenities.

Migration selectivity can be defined as the likelihood or tendency that a subset (part) of a group of people are going to move (migrate) out of a particular geographical location or area.

Some of the factors that influence migration selectivity are income level, age, education, gender etc.

Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.

Mathematically, the population change equation is given by the formula;

Population Change = (Natality - Mortality) + (Immigration - Emigration)

Therefore, the equation which would create a stable population is given by the formula;

Natality + immigration = mortality + emigration.

8 0
2 years ago
Read 2 more answers
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s2008m [1.1K]

Answer:

- It produces NADH.

- It occurs in the cytoplasm of the cell.

- It converts glucose into pyruvate.

Explanation: I'm pretty sure this is right. I hope this helps! :)

4 0
3 years ago
Intercostal nerves Group of answer choices are also known as cervical nerves. do not enter into a plexus and directly connect to
Natali [406]

Answer:

The correct answer is: do not enter into a plexus and directly connect to the structures they supply.

Explanation:

<u>The </u><u>anterior rami</u><u> of the thoracic spinal nerves </u><u>from T1 to T11</u><u> give birth to the </u><u>intercostal nerves</u>, which are part of the somatic nervous system.

The intercostal nerves supply the thoracic pleura and abdominal peritoneum, and they vary from the anterior rami of the other spinal nerves in that they each take their own path without forming a plexus, <em>directly connecting to the structures they supply</em>.

The intercostal nerves are derived from the somatic nervous system, unlike the autonomic nervous system nerves that innervate the visceral pleura of the thoracic cavity. They can govern muscle contractions and give sensory information about the skin and parietal pleura as a result of this. This explains why damage to the thoracic cavity's interior wall can be felt as a severe discomfort in the damaged area. Damage to the visceral pleura causes a pain that is not localized.

5 0
3 years ago
What contains instructions to cells about how to form a heart ?
madam [21]
The deoxyribonucleic acid (DNA)
6 0
3 years ago
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Water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a(n) __________ in tubular fluid v
notsponge [240]

Water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a decrease in tubular fluid volume that is isotonic to plasma.

<h3>What do you mean by Proximal tubule?</h3>

A Proximal tubule may be defined as the portion of the nephron that lies in between Bowman's capsule and the loop of Henle.

The major function of the proximal tubule is to reabsorption of sugar, sodium, chloride ions, and water from the glomerular filtrate. It decreases the volume of tubular fluid.

Therefore, water and sodium ions are reabsorbed in the proximal tubule in a relationship that results in a decrease in tubular fluid volume that is isotonic to plasma.

To learn more about Proximal tubule, refer to the link:

brainly.com/question/27064013

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7 0
2 years ago
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