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Andru [333]
3 years ago
14

A biologist is using a dichotomous key to identify fish. 1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 2 2. (

a) One fin is spiny, the other is smooth ® 3 (b) One fin is not spiny or smooth ® 4 5. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 7 6. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10 7. (a) Tail is asymmetrical ® 8 (b) Tail is symmetrical ® 9 10. (a) Scales are small ® Trout (b) Scales are large ® Whitefish What is the next step to take to identify a fish that has a single dorsal fin and no fin on the back near the tail? step 5 step 2 step 7 step 6 Mark this and return
Biology
2 answers:
Fantom [35]3 years ago
4 0

Answer:

Step 7

Explanation:

Lina20 [59]3 years ago
3 0

Answer:

step 7

Explanation:

it was on quizlet

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<h2>Answer </h2>

DNA are found in the cells of all living organisms

<u>Explanation</u>

DNA is a complex molecule consisting of many components which are passed from parent organisms to their offsprings during the process of reproduction. The DNA contains instruction needed for an organism to develop survive and reproduce. DNA is deoxyribonucleic acid and is contained in your body's cells. From microscopic view they are double, large cable of particles termed as nucleotides. This show the cell what proteins to produce in the living organism. Hence, all living things have DNA within their cells.

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3 years ago
Two of the many cycles in nature's web of life are the carbon cycle and the A. energy cycle B. water cycle C. food cycle D. heat
dmitriy555 [2]

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▹ Answer

<em>B. water cycle</em>

▹ Step-by-Step Explanation

Water is something that is dependent on amongst living things. Without the water cycle, there wouldn't be a source of water and living things wouldn't be able to survive.

Hope this helps!

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6 0
3 years ago
HELP ME! Gold medal if you help and its right!!!
4vir4ik [10]
C)set maximum contaminant levels for pollutants in drinking water
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Why does the relationship between metabolic rate and temperature exist?
Andre45 [30]
C.there is no relationship between metabolic rate and body temperature.
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3 years ago
Two parents who do not have sickle cell anemia have a child that has the disease. The parents are both:_______
Mars2501 [29]

Answer:D

Explanation:

Both parent are Heterozygous for the sickle cell allele.

Both parent have sickle cell trait in which the both posses one abnormal allele of the hemoglobin beta gene (AS heterozygous genotype)

When two AS parents mate, probability of giving birth to a sickle cell anemia child is 1/4

AS + AS= AA, AS, AS, SS

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