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Nina [5.8K]
3 years ago
9

Question 5 of 10

Biology
2 answers:
Tcecarenko [31]3 years ago
4 0

Answer:

B. Replanting trees in deforested areas.

erastova [34]3 years ago
4 0

Answer:

The activity that would effectivly keep the oxygen cycle stable would be replanting treesin a deforest area, because now not only are you recreating that area for organisms to live in again, but creating more oxygen.

A. Dumping waste wouldn't help resolve anything, because now you are ruining not only the environment but the water supply, and the aquatic organisms.

C. Raising more cows on farm, wouldn't really resolve anything much.

D. Pruining trees would basically be cutting them, which wouldn't help with oxygen levels, moreover, you are decreasing it.

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Although selection operates against deleterious alleles in populations, they are rarely lost from these populations. For example
KonstantinChe [14]

Answer:

Deleterious alleles appear sporadically in a population

Explanation:

A population with a deleterious allele will have no or few individuals that have the ability to pass along these traits. These alleles appear less in a population because of selective pressure but they are not always absent. The alleles appear less often but are are not always passed on and the others that are genetically fit are able to pass along their genes. The reason the population equilibrium is not zero is because these alleles do appear but they are not necessarily passed along. These individuals may not be able to reproduce or reach the age of reproduction.

Deleterious alleles appear more often, making individuals less fit genetically, i.e. they pass fewer copies of their genes to future generations. Put another way, natural selection purges the deleterious alleles.

3 0
3 years ago
Molecules that have the same chemical formula but have different molecular structures are
Svetradugi [14.3K]
Molecules that have the same chemical formula but have different molecular structures are:  Isomers. 
5 0
3 years ago
Please help me!! 15 points!!!!!
Karolina [17]

Image 1.1 -

Stomata are little moth-like structures in leaves, that, when open, allow the exchange of gases between the plant and the exterior.

Answer:

B.

Image 1.2 -

Without the existance of stomata, the process of transpiration wouldn't be possible if there weren't structures thata allowed the exchange of gases.

Answer:

A.

Image 2 -

So, we can elminate plants because they can photosynthesise; bacteria because they are prokaryotes and can photosynthesise; archaea because they are prokaryotes; hat leaves us with animals and fungi because these cannot photosynthesise and are both eukaryotes.

But, we cannot skip information. It is also said that the organism found has a cell wall, and animals do not have cell walls.

Answer:

C.

Image 4 -

Option 1 = cilia

Option 2 = flagella

Option 3 = pseudopods

Option 4 = pili (they're a meant to attacht to surfaces only bacteria)

Image 5 -

Runner stems are those that grow horizontally, therefore the fourth image with the long horizontal stems.

Rhizome stems are underground stems that can form roots or shoots through their nodes. Therefore, the third image with white background (the one with 2 drawn plants).

Tuber stems are large underground (mostly) structures used as storages for the plant. Therefore, this corresponds to the first image (the one with the white background.

Bulb stems are short and "bulby" stems, whith thick, leaves. Therefore, the second image (the one with the grass background).

Hope it helped,

BioTeacher101

7 0
3 years ago
Early one spring, a group of bird-watchers counted 30 different species of birds in a tract of forest. In the early spring two y
Gemiola [76]
The forest shows a decrease in biodiversity
5 0
3 years ago
3. Predict: Based on your hypothesis, predict how changing the rabbit population will affect the other organisms at first. Write
Damm [24]

Answer: as the predator’s population goes up, the preys will go down, and as the prey’s goes up, the predators will go up. They are basically the opposite of each other.

Explanation: I can’t really tell what your question is. However if there are more prey to eat, then the number of predators will grow because they have more food. However, once there’s too many predators, the number of prey will drop which lowers the amount of food.

7 0
3 years ago
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