How fossils of species that lived on Earth for short periods of time and were abundant and were widespread geographically ?

Answers

Answer 1

Answer:

Index fossils represents the fossils of the organisms that lived in a particular geological time zone. The index fossils defines a geological time of a dead organisms. Index fossil ensures that a correct order of geological time appears in a fossil record. The index fossils of organisms that lived for a short period, were abundant and widespread geographically.

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List and describe the three types of primary bonds.

Answers

ionic bonds : These are bonds formed from the donation and acceptance of electrons between elements, giving rise to strong compound

Covalent bonds: bonds formed when electrons are shared between elements giving rise to compounds

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The energy needed to "pump" sodium outside the cell in active transport is _____.ATP

lipids

heat

carbohydrates

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it's ATP, hope i could help :)

What was significant about the rocks Darwin found in the mountains

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He found sea fossils high on the mountain, evidence that continents and oceans had changed over time

What is the most important consideration for environmental policy makers?

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I think the most important consideration for environmental policy makers is the protection of the environment. In all their actions, they need to take into consideration the effect of such action to the environment. Hope this answers the question. Have a nice day.

Read through the list of organisms below. Of the organisms below, which ones are autotrophs? . aquatic photosynthetic bacteria a blue whale cheetah green-winged macaw honeybee humans maple tree phytoplankton rye grass tulips

Answers

Answer:

aquatic photosynthetic bacteria, maple tree, phytoplankton rye grass tulips

Explanation:

All are plants or does phtosynthesis which is what autotrophs are.

Which of the following statements best describes chromosomes?a. Humans have more than 460 chromosomes in every cell of the body.
b. Chromosomes are threadlike structures that carry genetic information.
c. Humans receive the majority of their chromosomes from their mother.
d. Chromosomes are arranged in 20 distinct pairs in the human body.

Answers

Answer: its B actually

Explanation:

Answer:

B: Chromosomes are threadlike structures that carry genetic information.

Explanation:

on edge2021!! hope this helps!!~

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