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rusak2 [61]
3 years ago
13

The earth's surface features are constantly changing in a process known as

Biology
1 answer:
maksim [4K]3 years ago
8 0
The earth's surface features are constantly changing in a process known as weathering and erosion. Weathering would happen when rocks would break physically like frost shattering while erosion happens when sediments and rocks are moved from one place to another by agents like water, gravity, wind and ice. These two occurrences are the cause of the constant change of the Earth's surface.<span />
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Three characteristics of living things?
elena-14-01-66 [18.8K]

Answer:

all living things have the ability to produce offspring

All living things are able to sense and respond to stimuli around them

all living things grow and mature

Explanation:

6 0
3 years ago
If LAL (limulus amebocyte lysate) turns into a gel when exposed to a sample, it
Vlad1618 [11]

Answer: The statement is TRUE.

Explanation:

Gram negative bacteria is a type of bacteria that possesses, from the interior to the exterior, a cytoplasmic membrane, a thin peptidoglycan layer, and an outer membrane containing lipopolysaccharide. The lipid portion of the lipopolysaccharide complex of the outer layer acts as an ENDOTOXIN.

The endotoxin of the gram negative bacteria can be detected in research or biomedical laboratories through a technique called LIMULUS AMEBOCYTE LYSATE test.

The test procedure follows a principle that the endotoxin of these gram negative bacteria are capable of forming gel clots (coagulation) of blood cell (amoebocytes) lysates of the Limulus polyphemus crab.

Therefore, If LAL (limulus amebocyte lysate) turns into a gel when exposed to a sample, it

means the sample is contaminated with endotoxins of gram-negative bacteria.

6 0
3 years ago
What density-dependent growth limiting factors kept the human population relatively low prior to the advent of agriculture?
4vir4ik [10]

Answer:

Limited food supply and competition

Explanation:

Density dependent factors are those which in general lead to reduction of growth rate of population when the population density increases. One of such factor is availability of food and competition.

Whenever the density increased to an extent where the resources or available food becomes scarce or limited,then the growth rate of population decrease.  These factors generally lead to logistic growth pattern of population.  

8 0
3 years ago
The maximum number of individuals that an environment can support is called the ___. A)population density B)Competition Factor C
Fudgin [204]

Answer:

D

Explanation:

3 0
3 years ago
Read 2 more answers
A botanist wants to see how different colored light waves influence the growth of pea plants. She puts the same number of seeds
SVETLANKA909090 [29]

Answer:

The amount of light they receive.

Explanation:

In an experiment, the independent variable is the part of the experiment that the experimenter changes. In this experiment, the only thing that's different for each of the plants is the amount of light they receive. Everything else is the same - the same amount of soil, same amount of water, same pots, and so on.

6 0
3 years ago
Read 2 more answers
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