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Neporo4naja [7]
3 years ago
12

What supply of oxygen exists in the body at any one time?

Biology
1 answer:
german3 years ago
4 0

Answer:

4 min to 6 min

Explanation:

Most people have a four-to-six minute supply of oxygen in the body at any one time.

However, a group of people called the Bajau have divers who can stay underwater for as long as 13 min at depths of around 60 m.

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In what direction and how many spaces must you move the decimal point to make the following
Alika [10]

Answer:

Right; 3 spaces

Explanation:

8 0
3 years ago
E. coli is a species of bacteria. What advantage does E. coli have over sexually reproducing organisms?
statuscvo [17]
<h3><u>Answer;</u></h3>

The bacteria require less energy to make offspring,

They do not need a partner

Also the reproduction is faster and rapid compared to sexual reproduction.

<h3><u>Explanation</u>;</h3>
  • Asexual reproduction is a type of reproduction that involves one parent and produces offspring that are genetically identical to each other and to the parent.
  • In sexual reproduction, on the other hand, two parents are involved, who produce reproductive cells called gametes that unite to form an offspring.
  • <em><u>E. coli is a bacteria that reproduces asexually. An asexual reproducing organism can produce many offspring in a short period of time without utilizing energy to find a mate</u></em><u>. </u>
5 0
3 years ago
Read 2 more answers
A geneticist is studying a disease trying to determine how its inherited. DNA testing was completed on three generations of a fa
Anton [14]

Answer:

X-linked recessive inheritance

Explanation:

Since the disease is primarily present in males vs females, it is a s.ex linked disease.

In X-linked recessive inheritance, males tend to get disease b/c they only have one x (the other is y) which means if they get the bad "x" copy from mom then they definetely will get the disease.

Females can be carriers b/c they are XX. If they get a good copy from mom and suppose a bad copy from dad, they can still be healthy b/c the good copy is dominant. They will be carriers (cuz they have the bad copy) but themselves wont have the disease.

6 0
2 years ago
Write a summary about the cell theory
julia-pushkina [17]

Answer:

Over the next two centuries after the discoveries of Hooke and Leeuwenhoek, biologists found cells everywhere. Biologists in the early part of the 19th century suggested that all living things were made of cells, but the role of cells as the primary building block of life was not discovered until 1839 when two German scientists, Theodor Schwann, a zoologist, and Matthias Jakob Schleiden, a botanist, suggested that cells were the basic unit of structure and function of all living things. Later, in 1858, the German doctor Rudolf Virchow observed that cells divide to produce more cells. He proposed that all cells arise only from other cells. The collective observations of all three scientists form the Cell Theory, which states that:

all organisms are made up of one or more cells,

all the life functions of an organism occur within cells,

all cells come from preexisting cells.

Though no one point of the Cell Theory is more important than another, the theory clearly states that the functions necessary for life occur in the cell. Findings since the time of the original Cell Theory have enabled scientists to "modernize" the theory, including points related to biochemistry and molecular biology. The modern version of the Cell Theory includes:

all known living things are made up of one or more cells,

all living cells arise from pre-existing cells by division,

the cell is the fundamental unit of structure and function in all living organisms,

the activity of an organism depends on the total activity of independent cells,

energy flow (metabolism and biochemistry) occurs within cells,

cells contain hereditary information (DNA) which is passed from cell to cell during cell division,

all cells are basically the same in chemical composition in organisms of similar species.

The Cell Theory is one of the main principles of biology. The points of the theory have been found to be true for all life. As with any scientific theory, the Cell Theory is based on observations that over many years upheld the basic conclusions of Schwann’s 1839 paper. However, one of Schwann’s original conclusions stated that cells formed in a similar way to crystals. This observation, which refers to spontaneous generation of life, was discounted when Virchow proposed that all cells arise only from other cells. The Cell Theory has withstood intense examination of cells by modern powerful microscopes and other instruments. Scientists continue to use new techniques and equipment to look into cells to discover additional explanations for how they work.

Explanation:

Hope I helped!

4 0
2 years ago
Read 2 more answers
Comparing the fetus's of a chicken and human is evidence for
Dmitrij [34]
The answer to ur question is a
6 0
2 years ago
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