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BigorU [14]
2 years ago
15

A cell wall and a cell membrane are different. All cells are surrounded by a ______________ that is _________________ and intera

cts with the environment.
Biology
1 answer:
Liono4ka [1.6K]2 years ago
7 0

Answer:

Cell Membrane---Semi-permeable

Explanation:

All cells have cell membranes, regardless of the type, and they are all semi-permeable, or selectively permeable, which means they can regulate what enters and leaves the cell.

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Why is the cell the lowest level of biological organization the that can maintain life?
Leya [2.2K]

Answer:

It's the lowest level of biological organization that can survive and reproduce as long as appropriate conditions are achieved.

Explanation:

5 0
3 years ago
What is the importance of the Endosymbiotic Theory?
trasher [3.6K]

Answer;

Endosymbiotic theory is important as it explains the origin of the chroloplast and mitochondria. It also explains the formation of the eukaryotic cells.


Explanation;

Endosymbiotic theory explains the origins of eukaryotic cell organelles such as mitochondria in animals and fungi and chloroplasts in plants.

Mitochondria and chloroplasts are believed to have developed from symbiotic bacteria, specifically alpha-proteobacteria and cyanobacteria, respectively.

7 0
2 years ago
Read 2 more answers
Which of the following areas of content knowledge is MORE heavily tested (as a percentage of the total certification in the SPHR
soldi70 [24.7K]

The question is incomplete. The complete question is as follows:

The most widely known HR certifications are the PHR (Professional in Human Resources) and the SPHR (Senior Professional in Human Resources, both sponsored by the Human Resource Certification Institute (HRCI). Visit the HRCI website [https://www.hrci.org/], and answer the following question about the PHR and SPHR certifications.

Which of the following areas of content knowledge is MORE heavily tested (as a percentage of the total certification) in the SPHR (Senior Professional in Human Resources) than in the PHR (Professional in Human Resources)?

Answer:

Business Management and Strategy.

Explanation:

PHR (Professional in Human Resources) and SPHR (Senior Professional in Human Resources) are the human resource management profession. This includes the particular training course period and computer based exam occurs in the world.

This profession mainly teaches about the different strategic approach for the effective Business management  and the employees. This helps the business to get advantage in the market. The SPHR demonstrates the mastery in the HR knowledge and provide heavy knowledge of teh business development strategy.

7 0
3 years ago
How can the Earth be a closed system if space shuttles can leave the
gtnhenbr [62]

Answer:

The answer is- A). Because it takes tremendous effort to break free from the laws of gravity to exit the Earth's atmosphere.

Explanation:

I really don't have an explanation. Except that I love science and I actually pay attention in my classes.

6 0
3 years ago
Read 2 more answers
Identify and describe the various satellites the orbit in our solar system.
Hitman42 [59]

Answer:

Explanation:

The seven largest natural satellites in the solar system (over 2,500 km in diameter) are the four Jovian Galilean moons - Ganymede, Callisto, Io, and Europa - Saturn's moon Titan, Earth's own Moon, and the satellite captured natural of Neptune Triton.

They move around a larger body. They revolve around these bodies because of their gravitational pull. The orbits that they describe when turning on these bodies can be regular or irregular.

Natural satellites of planets in the Solar System

Mercury → 0.

Venus → 0.

Earth → 1.

Mars → 2.

Jupiter → 79.

Saturn → 82.

Uranus → 27.

Neptune → 14.

6 0
2 years ago
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