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ololo11 [35]
3 years ago
11

The major difference between prokaryotic and eukaryotic cells is that

Biology
2 answers:
gtnhenbr [62]3 years ago
6 0
Answer is B
Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example of prokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.
Eva8 [605]3 years ago
5 0

B. All eukaryotes have membrane-bound organelles like the nucleus. Prokaryotes have no internal membrane-bound organelles.

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Water is warmed by the sun and
IceJOKER [234]

Answer: The water is warmed up by the sun and then it evaporates into the atmosphere. The sunlight warms the water by its heat.

Water is then cooled down and condensation takes place.

The water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

Water and nutrients that are not recycled on earth are stored in the form of reservoirs.

Explanation:

3 0
3 years ago
The two members used in the construction of an aircraft fuselage are joined together using a 30° fish-mouth weld. Determine the
Leya [2.2K]

This question is incomplete because it lacks the required diagram of the fuselage. Please find attached to this answer the appropriate diagram.

Answer:

The average normal stress on the plane of each weld = 66.7 psi

The average shear stress on the plane of each weld = 115.5 psi

Explanation:

From the question, we are told that two members are joined together.

From the diagram we see 800lb.

Since there are 2 members = 800lb/2

= 400lb

a) The formula for average nor umal stress on the plane of each weld = Force (in Newton)/ Cross sectional area (in inches)

From the question, we are assuming that the horizontal force = 400lb

We are given an angle of 30°

Therefore, the resultant force in Newton = F sin θ

= 400 sin 30 = 200lb

Cross sectional area = A/sin θ

= 1 × 1.5/ sin 30

= 3 in²

The average normal stress on the plane of each weld is calculated as:

200lb/3 in²

= 66.7lb/in² or 66.7 psi

b) The average shear stress on the plane of each weld = Force (in Newton)/ Cross sectional area (in inches)

Resultant force =  F cos θ

= 400 cos 30 = 346.41016151lb

Approximately = 346.41lb

Crossectional area = 3 in²

The average normal stress on the plane of each weld is calculated as:

346.4lb/3 in²

= 115.47Ib/in²

Approximately = 115.5Ib/in²

Therefore,

The average normal stress on the plane of each weld = 66.7 psi

The average shear stress on the plane of each weld = 115.5 psi

3 0
2 years ago
What is independent assortment? When does it occur during meiosis?
SpyIntel [72]
It occurs during Anaphase II, Telophase II, and Cytokinesis, when the sister chromatids separate so that there is 1 allele per gamete.
5 0
3 years ago
Increased production of goods makes our lives more comfortable, but causes an increase in the demand for energy and other resour
vladimir1956 [14]

Answer:

pollution levels in the atmosphere

Explanation:

One negative impact of increased production of goods is the increased levels of pollution in the atmosphere.

Pollution is the introduction of harmful substances into the environment beyond levels that are safe for life. The materials are the pollutants.

Production of goods or manufacturing generates a lot of waste with it. Air pollution is easily attributable to manufacturing.

Green house gases from combustion of fossil fuels to drive industrial processes generally leads to climate change.

Smokes and dusts can be produced by industrial processes and when scattered about causes pollution

3 0
3 years ago
Read 2 more answers
Explain how scientists use geologic time to determine the age of landforms.
ch4aika [34]

Answer:

Researchers initially built up the geologic time scale by considering rock layers and record fossils around the world. With this data, researchers put in Earth's stone layers in request by relative age. Afterward, radioactive dating decided the supreme age of the divisions in the geologic time scale.

5 0
3 years ago
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