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FinnZ [79.3K]
4 years ago
14

Page 161 3. how do people adapt to environmental extremes and other circumstances? human populations that engage in activities t

hat stress the skeleton (e.g., walking, lifting, carrying) have bones with optimum density.
a. True

b. False
Biology
1 answer:
PilotLPTM [1.2K]4 years ago
7 0
It’s true (a) because bones become brittle and easier to break if theyre not used. bones more frequently used become stronger.
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The model is a diagrammatic representation of a plant cell. In which location does glycolysis occur in the cell?
meriva
Unfortunately this question is incomplete. Glycolysis occurs in the cytoplasm of prokaryotic cells and in the cytosol of eukaryotic cells. Cytosol is a liquid composed mainly of water with some ions and proteins that comprises the majority of the volume of a cell, and it holds the cell organelles. The cytosol is the site of most of the metabolic activity in the cell.
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4 years ago
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What is the difference between food chains and food webs? Food webs show the flow of energy from producers to consumers, and foo
NikAS [45]

Answer:

Food chains show a single path of energy in an ecosystem, and food webs show overlapping pathways of energy in that ecosystem.

Explanation:

Unlike food chains, food webs show more detailed information about the different animals in an ecosystem and show multiple energy transfers to different animals from the same sources.  

By looking at these examples, you will notice a dramatic difference in detail:

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3 years ago
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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
What would happen if cooked potatoes were used in osmosis experiment?
kenny6666 [7]
The potatoes would fill up with water. Osmosis is diffusion but with water. It always moves from the hypotonic (less solute) region to hypertonic (more solute). Good luck!
7 0
3 years ago
Small populations are more vulnerable to extinction, even with abundant resources, because of (choose any/all that apply):
KiRa [710]

Answer:

environmental stochasticity, and demographic stochasticity.

Explanation:

The small population species are prone to extinction.  Due to the process of evolution, many species raised from a single species.  This is because of variation, different individuals came and survive.  But all the species can't achieve reproductive success. They also can't adapt to the changing environment. The changing of the environment in the biodiversity is called stochasticity. The fewer Populus species can't face the natural selection. As a result, their mortality rate is more and the natality rate is high. Sometimes demographic stochasticity also responsible. The fewer reproduction results in less number of the individual over time. This causes mass extinction. The extinction of dinosaurs is an example of mass extinction. The more reproduction of the species means more variety. They can better adapt to the changing environment.  Some of the extinct animals are also living and known as living fossils. e.g. Armadillo, Platypus. The changing biodiversity and randomness of the population cause the extinction of a small population.

6 0
4 years ago
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