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Nezavi [6.7K]
3 years ago
8

Why do living things need air to breathe?​

Biology
1 answer:
padilas [110]3 years ago
7 0

Explanation:

Because It is vital that living things respire to get the oxygen for living cells to function.

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Lithium, sodium and potassium are all in group one on the modern periodic table.<br> Explain why.
Vinvika [58]
It is because all these three elements contain ionic properties and they have only one element in their outermost shell
8 0
3 years ago
Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, a
sattari [20]

Answer: natural selection

Explanation:Natural selection, gene flow, gene drift and mutation are the mechanisms for EVOLUTION.

The dominant purple allele must have been acquired from previous parent gene, by natural selection

Definitely the available   alleles from previous flower population were white and purple flowers. But, because the parents of purple flowers exhibit VARIATION, in their gene pool,  they showed dominance over  the recessive white colour flowers in the same population.  

◼ from Darwin’s observation and deduction, Organisms who acquired certain characteristics from variation  tend to survive than others, and therefore pass these inheritable characteristics to their offspring.

◼Thus the purple flowers dominated the population for the available resources, among the other flowers colours, (competitions) therefore it leads to a stable population in size after a period of time., while the white colour flowers are recessive

◼Darwin concluded that, variants of best adaptation will be selected for by natural conditions operating in the environment of the population at that particular period (natural selection).

Based on this, natural selection takes place, and the purple flowers with best variation will have selective advantage (dominance)above white colour flowers(recessive).

Consequently, they have higher survival rates compare to white flowers in the population this is   survival of the fittest by natural selection of purple flowers

The frequency of the white colour flower will reduced because of less manifestation of traits from generation to generation from reduced gene pool due to recessive trait, however the frequency of Purple flower will increase because the number of copies of allele of purple flowers is greater than the total number of all the flowers population( white flowers+purple)

5 0
3 years ago
What connection is there between Photosynthesis and Glucose production
attashe74 [19]

Answer:

The relationship between photosynthesis and cellular respiration is such that the products of one system are the reactants of the other.

Explanation:

For example, the output of photosynthesis is the input of glucose production or cellular respiration. The output of glucose production is the input of photosynthesis. Photosynthesis involves the use of energy from sunlight, water, and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.  To emphasize this point, even more, the equation for photosynthesis is the opposite of cellular respiration.

7 0
3 years ago
In addition to tempature and precipitation, koppens climate system classified by a regions
sp2606 [1]

Answer:

sounds hard have a good day

Explanation:

5 0
3 years ago
What are the different parts of the DNA model?
leva [86]

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

4 0
3 years ago
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