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Anarel [89]
3 years ago
6

Which statement describes potassium-argon dating?

Biology
2 answers:
marysya [2.9K]3 years ago
7 0
What are the statements?
DENIUS [597]3 years ago
3 0

Answer:

Argon breaks down into other elements and compounds.

Explanation:

On E2020 Just took the test

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Match each organism with its phylum Pines Ephedra Palm-like plants Trees with fan-shaped leaves A. Gnetophyta B. Ginkgophyta C.
solong [7]

Answer:

Ginkgophyta

Explanation:

Gymnosperms are cone-bearing trees or Woody plants, which do not different greatly in their structure from the Woody angiosperms. Gymnosperms do not produce flowers but as seed plants that bear their seeds on scale-like leaves which are arranged spirally to form cones. The seeds are termed naked seeds because they are exposed to the air on the surfaces of the cone scales.

Gymnpsperms are grouped into four major divisions namely:

*Ginkgophyta

*Cycadophyta

*Corniferophyta

*Gnetophyta

1)DIVISION GINKGOPHYTA:The ginkgo tree cared maiden hair is the only surviving member of this division. It is found in the Orient(China and Japan) where it is cultivated as an ornamental tree because of the fan-like leaves. The leaves are *fan-shaped* with long petrioles.

2)DIVISION CYCADOPHYTA:The cycads abound in the tropics, mainly as ornamental plants. They are *palm tree-like* plants with a crowded crown of palm fronds.The leaves of Cuba's are deep green,waxy with large petioles.

DIVISION CONIFEROPHYTA:This is the largest group of Gymnosperms as it includes some of most economically exploited plants such as *pines* and Jupiter's. The pine tree is important as Christmas tree and conifers are generally important in the production of wood and paper

DIVISION GNETOPHYTA:This is the group of very unique Gymnosperms made up of three genera:Gnetum,*Ephedra* and Welwitschia.

Ephedra is a profusely branched shrub found in desert regions. It has whorl-like, scale-like, or needle -like leaves and jointed stem.

Hence, matching each with its phylum, we have:

Gingkophyta:Fan-shaped leaves

Cycadophyta-Palm-like leaves

Coniferophyta:Pine

Gnetophyta:Ephedra

5 0
3 years ago
When a player steps into his/her backswing, where should the weight of his/her body be placed? (1 point) le???? hip right hip ba
Maru [420]
<span>I am going to answer this as a golf player myself
  The answer to this question is it is rather a chain of event where where weight shift occurs gradually while back swing but the weight is originally on the back foot and for good back swing the weight should be on it so that more power can be delivered while swinging So the correct answer is back foot</span>
8 0
3 years ago
A cell spends most of its time in what phase of the cell cycle
Kisachek [45]

Answer:

The interphase stage.

Explanation:

During the interphase stage of mitosis, the cell does not divide and spends a big portion of the time at this stage. During that time, the cell synthesizes its DNA and doubles the cytoplasm.

6 0
3 years ago
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Darwin’s theory of evolution is based on
Marizza181 [45]

Answer:

Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.

Explanation:

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What happens when an ecosystem is in equilibrium???
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Ecosystems equilibrium is when populations of organisms in the ecosystem are balanced.
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