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suter [353]
3 years ago
7

Refer to this portion of a dichotomous key for fish identification to answer the question 1. (a) Has a single dorsal fin 5 (b) H

as a double dorsal rsal fin 2 5. (a) Has small fin on back near tail 6 (b) Has no fin on back near tail 6. (a) Has barbs near the mouth Catfish (bDoes not have barbs near the mouth h 10 What do the numbers after the arrows represent?
A. the number of the question that should be considered next ( this one is correct)

B.the number of points that should be added to the organism's identity total
C. The probability that the organism has the described characteristic
D. the number of species that have the described characteristic

Biology
1 answer:
ale4655 [162]3 years ago
6 0

Answer: Boi i dont knwo

Explanation:

ehehehehehehehehehehe

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6. Cuál es la característica de la vida que nos permite responder a estímulos?<br>​
natta225 [31]
SE LE CONOCE COMO IRRITABILIDAD

Los seres vivos tienen la capacidad de responder a una variedad de estímulos tanto del medio exterior como del medio interno. Esta capacidad de respuesta se denomina irritabilidad, porque es diferente a otro tipo de respuestas que se observan en la naturaleza.
3 0
3 years ago
Which statement about atmospheric pressure near earths surface is true
Lena [83]
I will think it’s B.... hope it helps!
4 0
3 years ago
Competition without division of resources may lead to
RideAnS [48]

Answer:

<em>Competition without division of resources may lead to extinction.</em>

Explanation:

Some species are better adapted to live in an environment as compared to other species. If resources become scarce then the species with better traits might take up all the resources of a species which are not better adapted. This will cause the species with unfavourable traits to become extinct. To survive in an environment, an organism needs to change and adapt according to the conditions of the environment. Otherwise, the species will become extinct.

4 0
3 years ago
A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, 15 chicks are gray, 6 are black,
m_a_m_a [10]

Answer:

Alleles for feather colour exhibit incomplete dominance or co-dominance.

50% gray offspring + 50% black offspring

Explanation:

<em>It means that the alleles for feather colour in the hen exhibit incomplete dominance or co-dominance over one another.</em>

Assuming the allele for white colour is B, white colour will be b while the heterozygote Bb gives the gray phenotype.

Gray rooster + gray hen = 15 gray chicks, 6 black chicks and 8 white chicks.

15:6:8 is roughly 2:1:1 which is phenotypic ratio obtainable from crossing two heterozygous individuals as pointed out by Mendel.

Bb   x   Bb = 1BB, 2Bb, and 1bb

Crossing the gray rooster (Bb) with a black hen (bb):

Bb   x   bb = Bb, Bb, bb, and bb

          = 2Bb (gray):2bb (black)

50% of the offspring will be gray while the remaining 50% will be black.

7 0
3 years ago
What Type of skeleton (ENdoskeleton, EXoskeleton, or None) do Cnidarians have
Naddik [55]
  <span>They do not possess any skeleton at al</span>
5 0
3 years ago
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