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coldgirl [10]
3 years ago
8

The systemic circulation begins at the __ and ends at the __.

Biology
1 answer:
Sati [7]3 years ago
6 0

Answer:

1. left ventricle of the heart (ejects blood into the aorta)

2. ends with the right atrium (collects returning blood)

Explanation:

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The temperature in earths crust decreases with depth true or false
VARVARA [1.3K]

Answer:

false

Explanation:

temperature of the crust increases with depth, reaching values typically in the range from about 500 °C (900 °F) to 1,000 °C (1,800 °F) at the boundary with the underlying mantle. The crust and underlying relatively rigid mantle make up the lithosphere.

7 0
3 years ago
PLS HELP ILL GIVE BRAINLIST!!!!!!
kow [346]

Explanation:

Ans. B

* I am not sure about this answer, if I am wrong pls correct my mistake.

6 0
3 years ago
The rock in the picture is rhyolite, an extrusive igneous rock. Based on its appearance, how would you classify this rock?
Ronch [10]

Answer:

A. Felsic

Explanation:

The rock would be classified as a FELSIC rock based on its appearance.

To classify a rock based on its appearance, we would rely more on the features we can observe when we look at it. Some of the features are colour and mineral grains. We can also use its feel, cleavage, and some other physical properties.

Looking at the picture, the rock is light coloured. The mineral grains also have a fine texture because the mineral boundaries cannot easily be resolved by naked eyes.

A light coloured igneous rock is said to be FELSIC with a rich composition of silica and feldspars. Mafic igneous rocks are usually dark and have low silica contents.

From the texture of the mineral grains, we know the rock is an extrusive rock. It must have formed on the surface or very close to the surface. This implies that, the minerals could not grow into larger crystals. They cooled rapidly on encountering surface temperatures.

A rock of this type is a Rhyolite. The intrusive equivalent is granite. Granite differs from Rhyolite because they have large mineral crystals. They are both felsic.

8 0
3 years ago
Read 2 more answers
Design an imaginary food web or describe a real one. Include at least 4 living organisms that interact in your ecosystem.
PtichkaEL [24]

The trophic web is the interaction between different organisms in which there is energy transference. In the attached example, we consider plants, beetle, rabbit, frog, eagle, fox, mountainlion, and fungi.

<h3>What is the trophic web?</h3>

The trophic web is the interaction between different organisms involving transference of energy when some of them feed on the other ones.

The ones placed at lower levels pass energy to the ones at the higher levels.

Organisms at each level feed on the preceding one and become food for the next one.

• The first link corresponds to a producer organism -autotroph-.

• The following links are the consumers -heterotrophs- ⇒ herbivores and carnivores.

• The last links are the decomposers that degrade organic matter from dead organisms.

Because it is a web, all organisms are in equilibrium until a change occurs. When a sudden change affects any of the involved links, there can be a cascade effect on the web.

Any change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.

Example.

To make the trophic web, first, we need to have at least four links.

So first, let us list the organisms we are working with, and then define the position of each of the organisms on the web.

  • plants,
  • beetle,
  • rabbit,
  • frog,
  • fox,
  • mountain lion,
  • eagle,
  • Fungi

<u>Producer</u> → this is the autotroph organism that takes energy from the sun or any other inorganic source → An example of this is any plant.

<u>Consumers</u> → heterotroph

⇒ Herbivores → These are the animals that feed on any part of the plants → These are the beetle and the rabbit

⇒ Carnivores → These are the animals that feed on herbivores → These are the frog, the fox, the eagle, and the mountain lion

<u>Decomposer</u> → detritivorous organisms that take energy from dead matter → Fungi

Trophic web,

  • Plants directly provide energy to the beetle and the rabbit

Plant >> Beetle and Rabbit

  • The eagle takes energy from the rabbit and the frog takes energy from the beetle.

Rabbit >> Eagle

Beetle >> Frog

  • The fox takes energy from the frog and from the rabbit

Frog and rabbit >> Fox

  • The Fox and the eagle transmit energy to the mountain lion.

Fox and Eagle >> Mountain lion

  • Fungi takes energy from dead organic matter

Plants, beetle, Rabbit, Fox, Eagle, Mountain lion >> Fungi

You will find an image in the attached files.

You can learn more about the trophic web at

brainly.com/question/8354950

#SPJ1

5 0
2 years ago
Can dna replication occur without proteins
damaskus [11]
Yes, Yes it can… Amino acids do make up dna though
7 0
3 years ago
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