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2 years ago

How is The environment on Mars different from that of Earth’s?

Biology

2 answers:

Pavlova-9 [17]2 years ago

5 0

Answer:

Mars is about half the size of Earth by diameter and has a much thinner atmosphere, with an atmospheric volume less than 1% of Earth's. The atmosphere of Mars is about 100 times thinner than Earth's, and it is 95 percent carbon dioxide.
The atmospheric composition is also significantly different: primarily carbon dioxide-based, while Earth's is rich in nitrogen and oxygen.
Because of the differences in atmospheric densities and distances from the sun, the temperature within the atmosphere are also wildly different. Earth generally ranges from 14 degrees Celsius to 70.0 degrees, whereas Mars ranges from -146 degrees C to -140 degrees C.
Both planets have a silicate mantle surrounding their cores and a surface crust of solid material.
Earth and Mars’ both have terrains that varies considerably from place to place.

Explanation:

Mars2501 [29]2 years ago

3 0

Answer:

1) Atmosphere on mars is about 100 times thinner than earths. it also contains 95% Carbon dioxide

2)Mars is very cold. Average temperature = -80°F

3) Mars has reduced gravity.

4)Mars has a rocky and sandy surface and is dry.(although there was a time they said water was found on it. but i am not really sure)

5)Red dust covers most of its surface

6) Large storms can sometimes cover the entire planet

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Which of the following correctly matches the equilibrium receptor organs to the type of equilibrium it monitors?

Anarel [89]

Answer:

The correct answer is option B. maculae/ static equilibrium.

Explanation:

Maculae are mechanoreceptors present inside the saccule and utricle specialized for the static equilibrium detecting. Maculae use hair cells to find out the movements of the otolithic membrane occurs, which is the surrounding membrane of the macula.

The sense of the position of the head to determine the stability and posture is static equilibrium and it is determined by the maculae.

Thus, the correct answer is option- B. maculae/ static equilibrium.

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3 years ago

Which process takes place in the mitochondrion?

ser-zykov [4K]

There are no answer choices, but I know the mitochondria create energy for the cell.

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3 years ago

Read 2 more answers

A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur

mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

$w=mg$ ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

$g=\frac{GM}{r^2}$

where, g = acceleration due to gravity = $?m/s^2$

G = Universal gravitational constant = $6.67\times 10^{-11}Nm^2/kg^2$

M = mass of the planet = $5.97\times 10^{24}kg$

r = distance of the person from the planet = $6.38\times 10^6m$

Putting values in above equation, we get:

$g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2$

Putting this value in equation 1, we get:

$w=65kg\times 9.782m/s^2=635.83N$

Hence, the weight of the person above the surface of a planet is 635.83N.

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3 years ago

How do amphibians breathe on land and in water

gizmo_the_mogwai [7]

Answer:

Most amphibians can breathe both through cutaneous respiration (through their skin) and buccal pumping - though some also retain gills as adults. Some aquatic salamanders (and all tadpoles) have gills and can breathe underwater thanks to them. The Mexican axolotl, for example, never loses its gills.

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2 years ago

Identify the characteristics of carpetbagger and scalawags

Ulleksa [173]

The term “carpetbaggers” refers to Northerners who moved to the South after the Civil War, during Reconstruction. Many carpetbaggers were said to have moved South for their own financial and political gains. Scalawags were white Southerners who cooperated politically with black freedmen and Northern newcomers.

hope this helped :)

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3 years ago