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o-na [289]
3 years ago
12

Early, flawed dna models proposed by watson and crick and by linus pauling correctly described which property of dna? early, fla

wed dna models proposed by watson and crick and by linus pauling correctly described which property of dna?
Biology
1 answer:
marusya05 [52]3 years ago
4 0
<span>Work by Crick, Watson, and Pauling showed that DNA is helical in structure. However they were wrong in that they proposed DNA to be a triple helix with phosphates on the inside of the helix. But we now know that DNA is a double helix with phosphates on the outside of the helix.</span>
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Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures,
lesya692 [45]

Answer:

this is a TRUE statement.

Explanation:

Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures, pH, and atmospheric gases because although microbes are widespread in their occurrence,they are found almost everywhere,in the air,water,soil,food,decaying matter,oil deposits,in plants etc.

but their number and their types vary according to the locality and environmental conditions.

Although, some microbes are always present and contribute towards natural flora BUT besides this others are present in specific environments such as some in hot springs bearing very HIGH TEMPERATURE RANGES for example: <em>Thermus aquaticus.</em>

some of them inhabit the acidic or alkaline soil feeding on HUMUS.

Most of the microbes prefer ATMOSPHERIC GASES i.e some require oxygen for their survival .For example: <em>Pseudomonas.</em>

some don't require O2 for survival i.e <em>Spirochete.</em>

IN SHORT, most of the microbes have preferences for various environmental conditions.

5 0
3 years ago
If a pure-bred tall plant is crossed with a pure-bred short plant, the offspring will be:
Dmitry [639]
I would say A. Either tall or short
When Mendel crossed purebred short plants with purebred tall plants, all of the offspring were TALL

The pure-bred tall plant dominated the short
7 0
3 years ago
The purpose of the right ventricle is to: receive blood coming back from the lungs pump blood to the upper and lower body pump b
s344n2d4d5 [400]
The right ventricle will pump blood into the lungs to be oxygenated bia the pulmonary artery.
6 0
2 years ago
Which of the following is used as evidence in supporting the idea that life changes over time?
cluponka [151]
<span>B.The existence of vestigial structures
</span>
Vestigial structures have been used for long by evolutionists to support the theory of evolution. These organs are believed to have been in use in the past lives but as the species adapts to new forms of life and lifestyle,the vestige organs becomes obsolete,but are not removed by the body. An example of vestige organs in human being are the appendix,tail bone,and mammalian grands in men.
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4 0
3 years ago
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Keith_Richards [23]
Geothermal is a renewable energy, because it is from the heat produced by the earth. The earth gets heat from the sun, which will be there for the next million of years. Geothermal has benefits, because if we harness the use of it, instead of mining out all of our coal and oil, we can use this for a long run, and only leave non-renewable energy resources for backup. However, there are consequences to communities and surroundings. The geothermal only benefits when the earth is warm. When the earth becomes too warm, we wouldn't even need the energy anymore cuz everythings dead. So we can use this, but overall we must try to lower the amount of resources that produce this thing as possible.. ( use other renewable energy)

hope this helps
7 0
2 years ago
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