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Feliz [49]
3 years ago
12

A biologist counts the number of zebras in a population each year and notices an increase in the zebra population. Which describ

es the biologist’s actions?
experimentation
inference
observation
interacting
Biology
2 answers:
Illusion [34]3 years ago
4 0
When a biologist counts the number of zebras in a population each year and notices an increase in the zebra population, this would be an example "of <span>observation"</span>
enot [183]3 years ago
3 0

The correct answer for above statement is:

observation

Explanation:

Observation is the act or method of accurately watching someone or something.

Observation is the active appropriation of information from a primary source. In living beings, observation engages the senses. In science, observation can also include the recording of data via the use of scientific instruments. The term may also refer to any data accumulated during the scientific action.

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How many food calories can a human burn up in an hour by exercising at this rate? (remember that only 20.0 % of the food energy
blsea [12.9K]

Human can produce a maximum mechanical power of 1/3 hp (horse-power).

Horse power is a unit of power, it equals 746 watt (watt is also a power unit, known to be equal to a joule per second)


So:

1 ph = 746 watt = 746 J/s

1/3 ph = 248.6 J/s

we're looking for the calories, so

1 joule = 0.239006 calories


So human produce a maximum mechanical power of:

248.6 J/s = 82.88 calories per second.


We're looking for the number of calories consumed in three hours, so:

82.88 cal/s = 82.88 cal/s * 3600 s * 3 = 895200 calories = 895.2 kilocalories (food calories).


The number of food calories is 895.2 food calories

4 0
3 years ago
Because DNA replicates before cell division, what is each chromosome made up of​
Advocard [28]

Answer:

After DNA replication, each chromosome now consists of two physically attached sister chromatids. After chromosome condensation, the chromosomes condense to form compact structures (still made up of two chromatids). ... The two copies of a chromosome are called sister chromatids

Explanation:

3 0
3 years ago
two pea plant with yellow peas are crossed most of their offspring have yellow peas but about 25% of the offspring have green pe
Mrac [35]

Answer:

Both parents have the genes for yellow peas and green peas

Explanation:

If a plant has inherited one yellow peas gene and one green peas gene, the plant will produce yellow peas because (as you mentioned) yellow peas are dominant. that means the parents are heterozygous (Cc). If both parents have the gene versions Cc, then there is a 25% chance the offspring would get the gene version cc, coding for green peas.

8 0
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Which of the following is not likely to appear on a map?
bagirrra123 [75]

Answer:

The map

Explanation:

7 0
3 years ago
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What direction does a diffusing substance move?
lilavasa [31]
They move from an area of higher concentration to an area of lower concentration or they move down the concentration gradient
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