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Semmy [17]
2 years ago
6

A forest fire caused by lightening destroys an entire forest. The population of deer was drastically reduced within the forest l

eading to a decrease in genetic variation. This situation is an example of -
Mutations
Gene Flow
O Genetic Drift
Divergent evolution​
Biology
1 answer:
nadya68 [22]2 years ago
4 0

Answer:

I'm like 90% sure that it is Gene flow

Explanation:

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The nurse has administered promethazine intravenously to a client in active labor. the drug has had the desired effect when the
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3 years ago
Why do scientists study fossils?
Tasya [4]
Hi,

By studying fossils, scientists can learn how life has changed over time, how earth's surface has changed and what past environments were like. Fossils form when living things die and are buried by sediment; they are usually found in Sedimentary rock. Only the hard parts of organisms generally leave fossils because the soft parts generally decay too quickly to fossilize. In case you didn't know, there are two types of fossils; rock fossils and preserved fossils.

Option c) is the correct option above.

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6 0
3 years ago
Lipids have an important role in storing energy reserves. What is another primary function of lipids?
azamat

Answer: Unlike other body cells that can store fat in limited supplies, fat cells are specialized for fat storage and are able to expand almost indefinitely in size.

The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes.

7 0
3 years ago
Read 2 more answers
Match the gastric phase on the left (1-3) with the correct description on the right (4-6):
dem82 [27]

Answer:

1 and 5,

2 and 6,

3 and 4

Explanation:

Intestinal phase: stomach empties and decreases secretions

The intestinal phase is the phase where stomach empties its contents(chyme) and decreases secretion. In this stage the duodenum responds to arriving chyme and moderates gastric activity through hormones and nervous reflexes.

The Chyme is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum.

Gastric phase: stomach secretes juice and mixes food into chyme

The gastric phase is a period in which swallowed food and semi-digested protein ( peptides and amino acids ) activate gastric activity  which secretes juice and mixes food into chyme. About two-thirds of gastric secretion occurs during this phase.

Cephalic phase: prepares stomach for arrival of food

The cephalic phase of digestion is the gastric secretion that occurs prior to when food enters the oral cavity. Cephalic phase result from the ignition of  visual, olfactory, and auditory inputs to the brain and also induce anticipatory responses i.e  prepare the gastrointestinal tract for the meal.

4 0
3 years ago
A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How man
VMariaS [17]

Answer:

It has 4 trophic levels.

Explanation:

The first level would be the producers, followed by the primary consumers, then the secondary consumers, then the tertiary comsumers.

              /    Tertiary consumers          \

           /   Secondary Consumers           \

        /    Primary Consumers                     \

     /           Producers                                   \

 /________________________________\

5 0
3 years ago
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