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Trava [24]
3 years ago
7

why the inner planets are dense and rocky while the outer planets have low densities with no solid surfaces

Biology
1 answer:
SVEN [57.7K]3 years ago
7 0
<span>The Inner Planets dense and rocky because they are close enough to the sun that the heat has driven off the free hydrogen and helium which forms most of the Gas Giant planets (and most of the universe). Only the heavier elements remain.

And please put the questions in right subject. It belongs to "Physics" not for "Biology". 

Hope this helps!</span>
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When a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond, this type o
elena-s [515]

Answer:

The correct answer is C. paracrine signaling.

Explanation:

Intercellular signaling involves the transmission of the sending cell to the receptor cells. There are some basic chemical signals mechanisms between cells: Synaptic, Paracrine, Aotucrine, Endocrine, and by direct contact between cells.

In <u>paracrine signaling</u>, cells that are close to each other communicate by the release of chemical substances that can diffuse in the intercellular space. They produce changes in the target cells by altering their behavior or their differentiation. These are short distances communications that allow cells to coordinate their activities and function in a local area with their neighbors. These paracrine signals are very important in many aspects but especially during development, when a group of cells "tells" or "indicate" to another group of cells in their vecinity which identity to adopt.

7 0
3 years ago
Asexual reproduction
attashe74 [19]
That statement is not correct for asexual reproduction.

Asexual reproduction is when an organism produces offspring that inherit the same genes of the producer (it's essentially, a copy of itself).

It´s a type of reproduction practiced by Achaea and bacteria which are single-celled organisms.

8 0
4 years ago
Why was it profitable for General Motors and Ford to integrate backward into component-parts manufacturing in the past, and why
Fynjy0 [20]

Answer:

Why was it profitable?

(1) To control the quality of their spare parts.

(2) To reduce cost.

Why do they buy more parts outside?

(1) Inefficient in-house parts manufacturing.

The cost of managing Internal

(2) manufacturing of Automobile parts has increased.

Explanation: General motor and Ford are both world class Automobile manufacturers with several vehicles in every part of the world, General motors have its assembly plant in about 120 countries of the World.

During the early 20th Century they found that the local suppliers were unable to meet their Demand in terms of Quality and quantity and it was very expensive. So they started a backward integration to help regulate the quality,meet their Demand and save cost.

In recent times between the late 20th Century till recent times they buy more parts from external suppliers because the cost of managing Internal manufacturing became high because of labor costs and inefficiency caused by lack of competition and Japanese manufacturers have been able to meet their requirements.

8 0
4 years ago
How does wind affect the water cycle?
zhuklara [117]

Answer:

Explanation:

Earth's water evaporates, winds move water vapor from the sea to the land, increasing the amount of fresh water on land. Wind and evaporation patterns from the first animation are shown here on a map of the world. ... The ocean loses water to the air when the water

hi

7 0
3 years ago
1. Indicate all statements that are true. A. Haploid cells are only generated by meiosis B. Diploid cells are only generated by
zubka84 [21]

Answer: Option A, B and F.

Explanation:

Haploid cells are produced during meiosis. Meiosis is a type of cell division that reduces the number of diploid cell parent chromosomes to half number of chromosomes producing haploid cells.

Haploid cells contain half number of parent chromosomes.

Diploid cells is generated during Mitosis.

Mitosis is a type of cell division in which the parent cell divided to produce two daughter cells( diploid cells) which contain the full number of parent chromosomes.

Diploid cells can be generated by fusion.

Diploid cells is produced when two haploid cells fuse together.

7 0
3 years ago
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