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Brut [27]
3 years ago
9

Do chromosomes duplicate before cell division or after?

Biology
2 answers:
skad [1K]3 years ago
7 0
They duplicate before , I think
Tcecarenko [31]3 years ago
5 0
Chromosomes replicate before cell division.
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the following shows a graph of the energy changes taking place as a chemical reaction progress. If an enzyme is added, which arr
Alekssandra [29.7K]
The arrow representing the activation energy will decrease in magnitude.

This arrow will be beginning at the x-axis and going up to the maximum of the graph. The reason that its magnitude decreases is because enzymes provide  alternate pathways to reactions; the new pathway has a lower activation energy, so the reaction occurs faster when an enzyme is added. This is why enzymes are referred to as biological catalysts and are a vital part of an organism's body
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3 years ago
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Which two organs of a plant interact to cause seedlings to grow upward
Pie

There's tropism and stimulus, for starters. Gravity, light, and touch can all be used as stimuli. So it is debatable... If the plant is reaching upwards towards a window that is above it... It would then be light, and the plant's response would be to reach upward.

Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest?  

7 0
3 years ago
Please help me, is this answer correct?
dedylja [7]

Answer:

All options are correct

Explanation:

Fossils are the remains of organisms (animals and plants) preserved in a rock. Scientists (geologists & palaebiologists) have used fossils to study the diversity of organisms in the past. This is based on their preserved morphological features. For example, several species of foraminifera has been identified in the rocks. Among them, some species are present today whereas others have become extinct.

Similarly, fossils are the indicators of past climate (e.g. temperature) as well. This means, if a specific species can survive at a particular temperature, its presence suggest that particular environment. For example, corals survive in tropical waters at specific depth and sunlight. So, if we find corals fossils, the cliamte of that particular age would be roughly the similar.

In the end, fossils can also provide evidence of orogeny (mountain building) process. These are typically plants fossils which cannot move and their remains are preserved in the folding rocks.

8 0
4 years ago
This is for Forensics<br><br>What is the difference between sand, silt, and clay?​
KIM [24]

Answer:

They main difference is in chemical composition and particle size. Silt is composed of silicate minerals, or those containing silicon and oxygen. Clay is composed of metal silicates, or silicates with metals like magnesium or aluminum associated with it.Clay particles are extremely fine — smaller than 0.002 mm. Sand particles are 2.00 to 0.05 mm in diameter

Explanation: Basically, the main difference is their size.

Good luck is Forensics ʕ·ᴥ·ʔ

4 0
3 years ago
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