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Basile [38]
3 years ago
10

Which of the following characteristics does an arthropod have?

Biology
1 answer:
Natalija [7]3 years ago
6 0

-Presence of jointed appendages and gills, lungs, jaws.
-Presence of a chitinous external skeleton or exoskeleton that change periodically.
-Body constituted by repetitive segments, phenomenon known as metamerism<span>.</span>

<span>I hope this help,</span>

<span>                       Sebastian Goicoechea.</span>

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How does gravity cause erosion?
-BARSIC- [3]

Answer:

By pulling down rocks and particles.

Explanation:

For example, in a cliff, where rocks are being pulled down by gravity. Their particles and small pieces of rock are forced to fall apart, slowly eroding down any rock or sediment.

3 0
3 years ago
Verdadero o falso mediante el genotipo podemos determinar si existen dominancia en una característica
Murljashka [212]

Answer:

Verdadero

Explanation:

Sabemos que los caracteres dependen de los genes. Y los genes pueden presentarse en forma de alelos dominantes, o alelos recesivos. La expresión de los alelos recesivos son enmascarados o escondidos por el alelo dominante. Es decir, que si ambos alelos se encuentran juntos en un heterocigota, solo el alelo dominante se expresará.

Entonces el alelo dominante expresa la característica que resulta dominante, mientras que el alelo recesivo expresa la característica recesiva.

Genotipo:

  • Homocigota dominante ----> Expresa caracter dominante (Solo el alelo dominante esta presente)
  • Heterocigota -------------------> Expresa el caracter dominante (Ambos alelos estan presentes, pero el dominante es quien se expresa)
  • Homocigota recesivo --------> Expresa el caracter recesivo (solo alelos recesivos estan presentes)

Por ejemplo, si tenemos dos fenotipos rojo y amarillo, y sabemos que el color esta codificado por un gen dialelico llamado M. También supongamos que no sabemos qué alelo expresa qué color. Teniendo solo estos datos, no podemos decir si el rojo es el color dominante o si el amarillo lo es.

Sin embargo, si tenemos los siguientes genotipos acompañando esta información:

  • MM--> Amarillo
  • Mm--> Amarillo
  • mm --> Rojo

Recién ahora podemos deducir que el caracter dominante es el amarillo.

8 0
3 years ago
Could someone please help? IVE LITERALLY BEEN CRYING CUZ I CANT DO THIS
Serjik [45]

Answer:

Hope it helps DEAR

Explanation:

Each box in the Punnet square should have BbEe in them. Yes, all of them contain this possible offspring genotype.

Explanation:

A mouse with black fur and one with white fur are being bred. Black fur is BBEE and white fur is bbee. Hence, when listing them on the Punnet square, the genotypes will be heterozygous, since there are possible traits of each fur color

6 0
3 years ago
How do coral reef ecosystems demonstrate the ecological principles of shifting baselines, disturbance, succession, and sustainab
kkurt [141]

Answer:

Explanation:

c

6 0
2 years ago
In the Arroyo Seco, the Western Toad feeds on beetles, bees, and small aquatic insects. The Bull Frog has been introduced and ea
PilotLPTM [1.2K]

Answer:The based on this information interaction between these two species can best be described as COMPETITION. Correct option is B

Explanation:

Competition occurs between two species that shares the same requirements ( especially food) for survival.

Both the Western Toad and the Bull Frog has a similar niche because they require the same type of food (beetles, bees, and small aquatic insects) to survive in the environment of Arroyo Seco. Only one of the species will coexist in that environment and it's usually the survival of the fittest.

This explains the competitive exclusion principle proposed by Georgii Gause in 1934.

8 0
3 years ago
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