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IrinaVladis [17]
3 years ago
14

The foundation for biological evolution or descent through modification is?

Biology
2 answers:
weeeeeb [17]3 years ago
5 0
Descent with modification in biological organisms ; or a change in gene frequency in a population of organisms through time.
Pls Mark me as the brainliest!
SashulF [63]3 years ago
3 0

Answer:

A

Explanation: A,  because the foundation of biological evolution is changes in gene frequency in a population occur from one generation to the next. Mutation, migration, genetic drift, and natural selection along with sexual reproduction result in genetic variation or changes in gene frequency.

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Cómo era la flora en la era neoproterozoica??<br><br>Porfa ayuda!!
alukav5142 [94]

Explanation:

Geofísico Evento de glaciación extrema, conocido como el evento Snowball Earth Biológico Primera evidencia directa de vida multicelular. Origen de estructuras especiales de división celular en algas. Ficoplast en clorofitas entre 700 - 900 Ma Phragmoplast en neoproterozoico tardío Primeros fósiles animales Posibles fósiles de moho de agua (oomiceto) "Primera extinción masiva de vida compleja" al final del neoproterozoico (Darroch et al. 2015

6 0
4 years ago
Which of the following are contributions of deforestation to global climate change? Select all that apply.
Eva8 [605]

Answer:

Conversion of forest to cropland or pasture decreases the rate at which carbon is taken up by plants.

Cut trees are often burned, and this releases carbon into the atmosphere.

Explanation:

First of all, <u>deforestation is the conversion of forests to non-forest uses.  Non-forest uses include agriculture, industrial development, infrastructural development, etc. </u>

Forests are sinks for carbon and their removal or conversion to non-forest uses means that less carbon would be fixed through photosynthesis. Slash and burn agricultural practice also leads to the emission of carbon dioxide into the atmosphere.

Thus, more carbon dioxide would be present in the atmosphere as a result of deforestation and burning. This carbon dioxide is a greenhouse gas that causes the warming of the planet, a phenomenon that results in the change of climate of the planet.

<em>Hence, the conversion of forest to cropland leading to a decrease in the rate of carbon fixation and the emission associated with burning both contribute immensely to global climate change.</em>

6 0
3 years ago
What is mitosis and where does it occur
aleksandrvk [35]
Mitosis occurs<span> in the cell nuclei of eukaryotic cells that are not related to reproduction, while meiosis takes place in the cell nuclei of eukaryotic cells that are related to reproduction. During mitosis, a cell divides into two identical daughter cells which are used for the growth and replacement of worn cells.</span>
4 0
3 years ago
A botanist wants to observe the change in rate of growth of plants compared to the change in amount of rainfall on randomly sele
Anastaziya [24]
Line and scatter because it compares the increase decrease in a flow
3 0
3 years ago
When the charge inside the cell returns to the resting potential following depolarization, it is called:
scZoUnD [109]

Answer:

Repolarization

Explanation:

Repolarization refers to the phase during which the resting potential is restored after depolarization. This means that the inside of the axon membrane becomes negative again compared to the outside.

Repolarization is obtained by the functioning of K+ ion channels. The opening of K+ ion channels allows the K+ to move outside of the axon. Movement of positively charged ion (K+) outside of axon makes the inside negative again and the resting potential is restored.

5 0
3 years ago
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