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ale4655 [162]
3 years ago
14

When were the two major extinction periods that amphibians have survived?

Biology
1 answer:
faltersainse [42]3 years ago
8 0

in the 1950s and in 2007

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un caballo negro de antepasados desconocidos fue apareado con cierto numero de yeguas de color rojo deraza pura, estos apareamie
konstantin123 [22]

Pregunta completa: un caballo negro de antepasados desconocidos fue apareado con cierto numero de yeguas de color rojo de raza pura, estos apareamientos dieron 20 descendientes de colo rojo y 25 de color negros.

A) cual de dichos caracteres fenotipicos es mas probable que este causado por un homocigoto recesivo?

B) segun su hipotesis cuantos individuos de cada clase habrian esperado

Answer:

A) El color rojo es causado por un genotipo homocigota recesivo

B) Se habrían esperado 22.5 individuos negros y 22.5 individuos rojos, que juntos sumarian un total de 45 individuos.

Explanation:

El desarrollo del problema se encuentra disponible en el archivo adjunto

Download pdf
3 0
3 years ago
Please help me with this
Aleksandr [31]

Answer:

bro ineed help to

Explanation:

4 0
3 years ago
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What novel characteristics are shared by gymnosperms and angiosperms but not by mosses and ferns?
sergejj [24]

Explanation:

Mosses go through sporophyte and gametophyte stages in their life cycle. ... However, mosses are nonvascular while ferns are vascular. Gymnosperms and angiosperms are both vascular, seed-bearing plants. However, gymnosperms release their seeds in cones (like pinecones) while angiosperms release their seeds through flowers.

3 0
3 years ago
The leaves of a sensitive plant close whenever any part of the plant is touched because of a???
nadya68 [22]
It is thigmotropism because it is not affected by gravity or light.
6 0
4 years ago
Which group would be found on the lowest branch of a phylogenetic tree of all life?
nikklg [1K]
I think the correct answer would be the second option. The group of archaebacteria would be found on the lowest branch of a phylogenetic tree of all life. Phylogenic trees are illustrations of a hypothetical evolution of the organisms and its relationship with the other organisms. From the listed options, the archaebacteria is most likely to be the most basic and simplest life form. It should be placed before the other options so at the lowest branch. This illustration is being used by scientists to describe how evolution and the connection of the organisms came about. It sometimes called as the tree of life.
6 0
3 years ago
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