What keeps Mars in orbit around the Sun? Select one:
a. friction
b. gravity
c. magnetism
d. solar power

Answers

Answer 1

Answer: The Sun's gravity combined with the tangential ("sideways") velocity of Mars.

Related Questions

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What does the continued presence of vestigial structures like the whale pelvis and femur shown in Figure 16-1 suggest about the impact vestigial structures have on fitness?
Darby finds a rock in her backyard. It has large crystals. She has found _____.-an extrusive igneous rock -an intrusive igneous rock -basalt -obsidian
In order to decrease the genetic diversity of a population, you would need toadd individuals to a population only let individuals breed with other individuals that have very different characteristics increase a population's territory remove individuals from a population
In a car, how does an air bag minimize the force acting on a person during a collision?

How much heat energy (in megajoules) is needed to convert 7 kilograms of ice at –9°C to water at 0°C? A. 3.26 MJ
B. 2.48 MJ
C. 3.09 MJ
D. 2.13 MJ

Answers

The heat required to change the phase of a substance can be calculated by using the formula,

q = mCΔT where q is the heat needed, m is the mass of the substance, C is the specific heat capacity and ΔT is the change in temperature.

q = 7000 g (4.18 J/ g °C) (0°C - (-9°C))
q = 263340 J or .26334 MJ

I think the answer is not given in the choices.

I think the answer is B. 2.48 MJ, correct me if I’m wrong I’m studying this

Which scientist proposed that cells come from other cells?a. Hooke
b. van Leeuwenhoek
c. Schwann
d. Virchow

Answers

Answer: c. Schwann

Explanation:

By the late 1830s zoologist Theodor Schwann along with botanists Matthias Schleiden proposed the cell theory. The cell theory states that all living cells comes from the pre-existing cells, the cell is the basis unit of life and all living beings are made up of cells. This theory describes the basis property of all the cells.

Virchow. Hooke named the cell. Leeuwenhoek saw the first cell. Schwann observed animal cells. Virchow observed cell division.

which perspective says that babies are biologically equipped for using language but also need experience?

Answers

Answer:

Interactionist

Explanation:

A new drug is discovered for the treatment of thyroid cancer. Which is a logical next step of the scientific method after the discovery has been successfully tested?

Answers

clinical trials would be the next steps

to go to the clinic, or hospital would be the next step of what to do.
Hope that this helps you! =)

The innermost layer of an artery or vein is called the __________.

Answers

Artery and veins are the blood vessels responsible to carry oxygenated and deoxygenated blood respectively. The innermost layer of these blood vessels is referred to as tunica interna.

What are blood vessels?

Blood vessels are responsible for circulating blood from heart to other body parts and vice-versa.

These carry oxygenated blood from heart to other cells and deoxygenated blood from cells to lungs and then to heart.

These are of two types, namely artery and vein.

The innermost layer of an artery or vein is referred to as the tunicainterna.

Thus, the correct answer is tunica interna.

For more details regarding blood vessels, visit:

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the innermost layer of an artery or vein is called the tunics.

Which statement is correct based on analysis of this phylogenetic tree?. The arctic fox is more closely related to the fennec fox than to the kit fox. The Cape hunting dog is more closely related to the coyote than to the black-backed jackal. The most recent evolutionary split was of the fox from the coyote. The closest relative to the crab-eating fox is the gray fox.Which statement is correct based on analysis of this phylogenetic tree?

Answers

Final answer:

In a phylogenetic tree, close relations are usually shown by nodes branching off from the same line. The most recent evolutionary split would be at the end of the tree. Appearance doesn't necessarily reflect genetic closeness due to environmental influences and the development of analogous structures.

Explanation:

Without the specific phylogenetic tree to refer to, I can only explain the basis for the potential correctness of the statements provided. Typically, when analyzing a phylogenetic tree, close relations are typically indicated by nodes that branch off from the same line in the tree. As for the 'most recent evolutionary split', it would be the one furthest to the 'right' or end of the tree, being most recent time-wise. The level of similarity between organisms does not necessarily reflect their distance on the phylogenetic tree. Environmental adaption could allow two distinct species to appear more similarly than they genetically are. This is the concept of analogous structures.

Learn more about Phylogenetic tree here:

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Final answer:

Without the actual phylogenetic tree, it's challenging to provide a definitive answer to which statement is correct. The correct statement would be the one that represents the closest common ancestors between the species, as per the rules of phylogenetic analysis.

Explanation:

The question is about the analysis of a phylogenetic tree. Without the actual tree provided, it's challenging to provide a direct answer to which statement is correct. However, if we go by the rules of phylogenetic analysis, the correct statement would be the one that represents the nearest shared branches in the phylogenetic tree.

For instance, if the arctic fox and the fennec fox share a more recent common ancestor on the tree than the arctic fox and the kit fox, then the statement 'The arctic fox is more closely related to the fennec fox than to the kit fox' would be considered correct. The same logic applies to the other species mentioned in the other statements. Therefore, without the actual tree, we cannot definitively state which statement is correct.

Phylogenetics is a major part of evolutionary biology and it involves the study of the evolutionary relationship amongst various species. These relationships are discovered through phylogenetic inference methods that evaluate observed heritable traits, such as DNA sequences or morphology under a model of evolution.