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Naya [18.7K]
3 years ago
7

About how much time did it take for the ancestors of modern giraffes to evolve the long necks of modern giraffes?

Biology
1 answer:
madam [21]3 years ago
3 0

It depends on what you believe. Many Evolutionists would say D. But if you believe in the Bible, then the answer is C.

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An ionic bond occurs when _____.
Svetach [21]
<span>Ions are another name for charged atoms. Some elements are electropositive, and some are electronegative. Electropositive elements such as metals like to give up electrons, thus taking on a positive charge. Electronegative elements such as chlorine attract electrons, so they become negative. When electropositive and electronegative atoms meet and exchange ions, they take on opposite charges. Because positive and negative charges attract, these charged atoms become attracted to one another. This attraction forms an ionic bond that keeps the ions together.</span>
4 0
3 years ago
Read 2 more answers
Explain in your own words the process using the following key words: carbon-di-oxide, water, sugar, oxygen, thylakoid, chloropla
solniwko [45]

Answer:

All the above keywords conclude a process used by plant which is known as photosynthesis. This process is done by all the green plants in the presence of sunlight and also in dark.

Explanation:

Photosynthesis is defined as the process by which all the green plants prepare their food in the presence of sunlight by the use of water, minerals and carbon dioxide. Chloroplast provides green color to the plant and it is also known as photosynthesis site. Glucose is the product and oxygen is a byproduct of photosynthesis.

Calvin cycle is a type of photosynthesis that is also followed by some. the energy released is counted in the terms of ATP which is also known as adenosine triphosphate. Sunlight plays a role of catalyst in the formation of food by the process of photosynthesis

8 0
3 years ago
In a typical monohybrid cross, all of the offspring in which generation will exhibit a single trait without blending?
Alexus [3.1K]

In F1 mono-hybrid cross, all of the offspring in which generation will exhibit a single trait without blending. It is one parents id homozygous for one allele, and other parents is homozygous for the allele.

Mono-hybrid cross used to identify the dominance relation between two alleles.  The hybrid of two organism with homozygous genotype which result in the opposite phenotype for genetic trait.

Mendel start this with the pair of pea plant by two contrasting trait such as tall and other one is dwarf. The cross pollination with each other which resulted that all plants are tall and this is called first hybrid generation or F1 progeny.

To learn more about F1 mono-hybrid cross here

brainly.com/question/11162425

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6 0
1 year ago
The Canby’s dropwort grows in wetlands in Georgia. It is an endangered plant because wetlands have been cleared for agriculture
KonstantinChe [14]
Their population will either decrease or they will be forced to migrate. They may also undergo adaptive radiation to adapt to new food sources or environments.
5 0
3 years ago
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The researcher also collected height data from 200 female sheep during both years but didn't notice a significant
sergiy2304 [10]

The data suggests that there is no change in height of sheep because of

Hardy Weinberg equillibrium.

Explanation:

Data given:

heights of 200 sheeps remains the same for two years.

reason=?

There is no change in the phenotype of the sheep population during two years as there is no effect of environmental factors, no evolution or genetic drift in the population. Such population happens due to Hardy Weinberg equillibrium.

This principle says that there will be no genetic variation in a population when no evolution causing factors are there. These factors are environmental, mutation, genetic drift, natural selection or gene flow.  When no new alleles are added in the population it remains same.

Thus in case of the 200 sheeps it is assumed that they were in Hardy Weinberg equillibrium.

8 0
3 years ago
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