Most of us cant even imagine a world without oxygen. though, Ask an Expert

Academics

Q.1. There is a general agreement that life should have evolved in the oceans originally and only much later invaded land. What factors of physical environment on the early and evolving Earth support these ideas? Changes in which of these factors were essential for life to stay alive on earth?

2. Most of us can't even imagine a world without oxygen. Though, as you learned earlier, chemically oxygen is a powerful oxidizing compound. What effect(s) would the increase in oxygen levels of atmosphere have on the organisms that existed at that time?

View complete question

Biology, Academics

Category:- Biology
Reference No.:- M9156493

Have any Question?Write your Review or question?

Related Questions in Biology

Suppose a man carries a very common dominant mutation for a

Suppose a man carries a very common dominant mutation for a deadly muscular disease that doesn't show up until people are usually over 50 years of age (he has the disease). He and his wife are expecting their first child ...

What are the equations for molarity molality density ppm

What are the equations for Molarity, molality, density, ppm, ppb, mass percent, Volume percent, and mole percent?

The allele for hitchhikers thumb is recessive to the

The allele for hitchhiker's thumb is recessive to the dominant straight thumb. In a population of 500 students, 25% have hitchhiker's thumb. How many students would you expect to be homozygous dominant for the trait?

2croh3nbspnbsp3br2 10oh-6br-nbspnbsp2cro42- 8h2oin the

2Cr(OH) 3 + 3Br 2 + 10OH - 6Br - + 2CrO 4 2- + 8H 2 O In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent.

Chosen dr jan nolta- stem cell researcher head of uc davis

Chosen Dr. Jan Nolta- Stem Cell Researcher Head of UC Davis Stem Cell Program Director Topic Background: early Stem cells have the ability to develop into many different types of cells. Stem Cell Research is not without ...

Assignment on nutrition - q1 task you need to select 2

Assignment on Nutrition - Q1. Task: You need to select 2 different age groups of your choice. You will need to plan balanced meals with snacks for a day. Once you have laid out the meal plan you need to: Explain why the ...

If you put the letter e on a slide underneath a light

If you put the letter "e" on a slide underneath a light microscope and physically move it from left to right, which way does the letter appear to move when viewed through the ocular lens? What if you physically move the ...

Choose one of the areas mentioned above that you would like

Choose ONE of the areas mentioned above that you would like to learn more about and write two or three paragraphs describing the process and how it relates to metabolism within the cell. Provide at least one specific (na ...

Question overview although it may sound like science 2520

Question: Overview: Although it may sound like science 2520, DNA and RNA technologies are already used in products today. In this discussion you will examine one specific product, organism, or technology in your initial ...

Question 1go outside during daylight hours to a natural or

Question 1. Go outside during daylight hours to a natural or semi-natural space (e.g., Burton's Pond, an urban park, your backyard). Sit still for 20 minutes and closely observe the plants and animals around you. Describ ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Biology Expert