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lianna [129]
3 years ago
9

What four characteristics are best for an index fossil to have ?

Biology
1 answer:
ludmilkaskok [199]3 years ago
8 0

Answer:

Easily recognizable, short lived (found only in a few layers of rock worldwide), wide distribution (geographic range).

Explanation:

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Compared with boys, girls tend to spend
Marat540 [252]

The correct answer is D.

Girls in general tend to spend more time with friends. This isn't to say that boys don't spend a lot of time with their friends but girls tend to engage more in their social relationships, whereas boys spend more time in competitive sports, more time in clubs and less time engaging in social relationships.

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List the name and defining characteristics of each of these major groups of plants covered in the reading (Green algae, Bryophyt
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Answer:

Green algae is divided into chlorophyte and chlorophyte. It possess chlorophyll a and b.

Bryophytes includes the liverworts, mosses and hornworts. It is know tracheaophytes I.e. is not vascular without extensive transport system, it needs water to reproduce sexually. It's Gametophyte is dominant and stomata are absent. (Hornworts possess stomata; it's related to tracheaophytes.

Ferns have vascular tissue, xylem and pholem, stem, root, leaves, dominant sporophyte. It's sporophyte possess rhizomes and fronds plus sporingia aldo called sori. Ferns are seedless vascular plants.

Gymnosperms includes the conifers, cycad e.t.c. It has its ovules resting on a scale. The ovules later develop into the seed. These seeds are naked as there are not enclosed in the chambers.

Angiosperms have flowers and fruits and show diuble fertilization. This is a  huge clade that consists of all flowering plants. Unlike Gymnosperms

They develop enclosed in chambers known as ovaries.

5 0
3 years ago
You find the density of a substance by dividing its volume by its weight?
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Answer:

The formula for density is the mass of an object divided by its volume. In equation form, that's d = m/v , where d is the density, m is the mass and v is the volume of the object. The standard units are kg/m³.

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2 years ago
What part of the cell defines cell shape?
pochemuha
<span>Defines cell shape= </span><span>cytoskeleton

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