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Iteru [2.4K]
3 years ago
9

Which phrase describes organisms that formed index fossils?

Biology
2 answers:
Vlad1618 [11]3 years ago
6 0

Answer: the first one... are extinct

Explanation:

That's the one that was right

Alla [95]3 years ago
6 0

Answer:

A on Edgenuity

Explanation:

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Part B<br> What are the strengths and weaknesses of the cell model?
matrenka [14]

Answer:

strengths:The cell model shows all the process involved, and it's easy to understand, even if a person isn't familiar with the process

weaknesses: it doesnt show organelle or rna

7 0
3 years ago
How do the circulatory and respiratory system interact to provide muscle cells with oxygen during a long distance race?
Orlov [11]

Answer:

Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.

The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.

Explanation:Goblet cell in your respiratory epithelium of trachea.

3 0
3 years ago
Look at the number of organisms and the amount of energy in each level of the pyramid. Why do you think there are more organisms
aleksandrvk [35]

Answer:

If there wasn't a lot of organisms and energy in the productive part of the triangle, then there wouldn't be a lot of third level organisms. The energy piramid would be a lot smaller then what it is here, and maybe if the energy source was low then there might not be such a vast varity of animals in the ecosystem.

You're welcome friend <3

6 0
3 years ago
To which of the six crystal systems does a halite crystal( rock salt) belong?
otez555 [7]
A halite crystal belongs to the cubic crystal system. The other five crystal systems are monoclinic, triclinic, orthorhombic, tetragonal, and <span>hexagonal.
The cubic crystal system is characterised by</span> <span>the way the atoms in the mineral are arranged in the three </span><span>dimensional</span><span> shape of a </span>cube. The halite crystal has this shape. Attached is an image of it. 

7 0
4 years ago
Read 2 more answers
Interspecies Relationships
lianna [129]

Answer:

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<em><u>Parasitism</u></em>=A tick living on a dog drinking its blood

<em><u>Predation</u></em>=A bear catching and eating a salmon from a river.

<em><u>Predation</u></em>=A bobcat catching and eating a rabbit.

<em><u>Mutualism</u></em>=A clown fish living in the tentacles of an anemone protected from predators.

<em><u>Mutualism</u></em>=Bees gathering nectar and then spreading pollen from a flower.

<em>Parasitism</em>=A tapeworm living in the digestive system of a horse.

8 0
3 years ago
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