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ziro4ka [17]
3 years ago
15

What change (or transition) in habitat did whales' ancestors make?

Biology
2 answers:
Artist 52 [7]3 years ago
3 0

Answer:Whale ancestors experienced several changes in their habitat that facilitated their evolution into fully-marine mammals.

Gekata [30.6K]3 years ago
3 0

Answer:

Change in habitats from land to sea.

Explanation:

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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
What are the possible adulteration and possible deterioration of Curcuma longa (Turmeric) ?​
mojhsa [17]
<h3><u>Turmeric powder can be adulterated in many different ways:</u></h3>
  • Curcuma longa(Turmeric) is a strong base and is used as a domestic product.

<u>The possible adulteration and deterioration of Curcuma longa are as follows</u>:

  • It can be mixed with chalk powder which results in production of small bubbles.
  • When turmeric powder is mixed with water, it produces some streaks of soluble colour in water that is caused as a result of adulteration of lead chromate in turmeric powder.
8 0
3 years ago
How does captive breeding help to protect single species?
max2010maxim [7]

Its used to protect genetic diversity and help reintroduce into the wild.

4 0
4 years ago
Very rapid (i.e. in 1-2 seconds) responses to maintain normal blood pressure during a sudden decrease in blood volume by hemorrh
Tatiana [17]

Answer:

vasoconstriction of capillaries.

baroreceptors in the aortic arch.

Explanation:

Vasoconstriction of capillaries and baroreceptors in the aortic arch are the two quick responses of body to maintain normal blood pressure during hemorrhage. Vasoconstriction is very necessary for lowering acute blood loss during hemorrhage means escape of blood from a ruptured blood vessel as well as maintain body heat and arterial pressure. The function of baroreceptors is to respond to the change in the tension of the arterial wall when blood pressure changes.

7 0
3 years ago
Brainly.com
zubka84 [21]
C. Ball and socket joints

Just took the test hope this helps :)
8 0
4 years ago
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