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valina [46]
2 years ago
8

I’ll give brainlist to right answers only! There are three questions.

Biology
1 answer:
Anettt [7]2 years ago
8 0

Scientists found that the first living things were likely prokaryotic because eukaryotic are evolved from the prokaryotic only.

<h3>What do you mean by Natural selection?</h3>

Natural selection may be defined as favorable variations that assist the organisms to survive and reproduce in a particular habitat.

Individuals that are better suited to their environment are likely to have more offspring and pass their genetic material on to future generations. This theory is referred to as Natural selection.

Scientists hypothesize that oxygen began to accumulate in the Earth's atmosphere after the appearance of living things with the ability to Photosynthesize.

To learn more about Photosynthesis, refer to the link:

brainly.com/question/19160081

#SPJ1

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One serving of total cereal has 100 calories. John ate 3 servings for breakfast. How man calories from total cereal did John eat
Kamila [148]

Answer:

300 calories

Explanation:

100x3=300

8 0
3 years ago
Which characteristic do cows and dogs share?
san4es73 [151]

Answer:

They are both mammals with tails.

Explanation:

Hope this helps!

6 0
3 years ago
Choose an industry or business. Decide what areas of scientific study they should support and state why you think so. please do
Mariana [72]

Answer: Lets choose a food processing company for scientific study.

Explanation:

Scientific study is the study which involves taking observations on the samples being studied experimentally. Drawing evidences from observations to prove a scientific fact.

In a food based company, several scientific tests are required to be done to check the shelf-life, quality, quantity of the ingredients, and to check whether they are fit for consumption or not all of these parameters have to checked through experimental procedures.

5 0
4 years ago
If you are on the fourth trophic evel, what percentage of energy are you setting from the producers?
elena-s [515]

We know, only 10% of energy transferred from each trophic level. Plant can capture 1% energy from the sun. According 10% law only 10% energy transfer to next level. Thus if plant has 1%- trophic level 2 will have 0.1%; then third trophic level will have 0.01% and we human if we are on fourth level then we will have 0.001%.

Thus correct answer is 0.001%.

7 0
2 years ago
The plasma membrane is mostly made of molecules that have hydrophilic heads and hydrophobic tails. these molecules are called __
Sladkaya [172]
Lipid Bilayer.A plasma membrane is made up of Lipid Bilayers, which consists of polar phosphate heads, which are hydrophilic or water loving, and non-polar fatty acid tails, which are hydrophobic. Proteins are embedded in the membrane as well.Cell membranes are known to have holes, or selective permeable.
7 0
4 years ago
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