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maw [93]
3 years ago
11

What is a change that improves a species chance of survival

Biology
2 answers:
Natasha2012 [34]3 years ago
6 0

The Answer is "<u>Adaptation</u>"

<em>~VERNEX</em>

Pavlova-9 [17]3 years ago
4 0
It's called adaption
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What element behaves MOST like magnesium? A) S B) Si C) Sn D) Sr
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Prokaryotic organisms have a single origin of replication, whereas eukaryotic organisms have many origins where replication occu
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Answer:

Explained

Explanation:

Prokaryotic cells are generally smaller in size than the eukaryotic cells and thus the DNA in the prokaryotic cells are much smaller than the DNA in the eukaryotic cells therefore, the later organisms have many origins where replication occurs simultaneously. Moreover, Prokaryotic cells lack neucleus and whereas eukaryotic cells have neucleus in them which is bounded by the membrane.

4 0
3 years ago
What did darwin believe was the primary cause of evolution?
lesya692 [45]

→ Darwin believed that the need to adapt, in similar words, the changes occruing in the environment caused evolution.

The main cause of evolution, according to Darwin, was natural selection. Natural selection is a process in which a group of organisms with certain characteristics survive and thrive, in comparison to other organisms with different characteristics. This idea basically means that having some characteristics makes you suited for an environment.


And how would that ↑ explain Evolution?

Well, evolution is the change in species that occurs during time. But for you to change, there must be a cause for that change, which is none other than the need to survive, reproduce, etc.


→ As mentioned before, not all characteristics are enough to surive, and hopefully the image pasted below will help you.



Hope it helped,


BioTeacher101

8 0
2 years ago
Describe how the functional units for beta carotene, xanthophyll, chlorophyll a, and chlorophyll b are different. be sure to ide
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The pigments have a similar structure of 40 carbon atoms covalently bonded in a chain. Carotenoids contain oxygen atoms in their chemical structure (retinyl functional group) while xanthophyll does not. This makes carotenoids more non-polar compared to xanthophylls, hence move farthest in chromatography paper using a nonpolar mobile phase. Chlorophyll pigment, on the other hand, has chlorin rings (which are larger) as functional units hence move slowly in chromatography.

Photosynthetic rates can be measured by either the amount of oxygen they consume per particular time period or the amount of carbon dioxide produced per particular time period. This is conducted while immersed in water so as to measure bubble rate formation in case of oxygen production or the change in water pH in the case of carbon dioxide consumption.

When autumn approaches, the amount sunlight received by the plant is reduced due to longer night than days. Deciduous trees have adapted by losing chlorophyll a and b pigments (most important in photosynthesis) during this time. This leaves a higher amount of the other red and yellow pigments hence making the leaves change from green to yellow-red.

It is believed that this is the result of an ancient endosymbiotic relationship between a protist and a eukaryotic cell. The protist generates energy that the eukaryotic can utilize in its growth and reproduction while the protist is sheltered. This relationship became obligatory symbiosis over time.






8 0
3 years ago
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