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iren2701 [21]
3 years ago
14

*GIVING BRAINLIEST. PLEASE HELP Q: What trend in the monarch population does the graph show?

Biology
1 answer:
il63 [147K]3 years ago
8 0

Answer:

the population is declining

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An experiment was designed to investigate if caffeine would raise the heartbeat of water fleas. Two groups of water fleas were u
fgiga [73]

Answer:

That is administered and controlled

Step-by-step explanation:

A variable is the condition or a product that may vary without the influence of any investigator. Such variables can be found abundantly in our daily lives, ranging from air to sunlight. Controlling such variables ensures the limitation of their influence on the outcome of an experiment. In connection to this experiment, the variables that are controlled are the mineral content in the water, the  amount of bacteria food, the amount of light and the the constant temperature of 20 degrees C.

If not administered or these variables controlled, the experiment would not clearly explain the impact of caffeine on the heart beat of the water fleas as other variables may have influenced it. Thus variables are controlled to study the singular impact of any agent or effect.  

8 0
3 years ago
Which of the following is not a primary body tissue?<br> bone<br> nervous<br> connective<br> muscle
never [62]

Answer:

Bone

Explanation:

Even though they are made of tissue they are not primary.

5 0
3 years ago
Bacteria live in a variety of locations one of which is the human mouth. Which explanation supports the wide variety of bacteria
podryga [215]
The answer is C. <span> Accessibility to nutrients makes the mouth a favorable habitat.

Hope this helped. Good luck!</span>
6 0
3 years ago
Read 2 more answers
Which of the following is a plant adaptation to living in a cold climate?
NemiM [27]

Answer:

b. Vernalization

Explanation:

Vernalization is a phenomenon in which plants require low temperature for the flowering. There is either qualitatively or quantitatively dependent on exposure to very low temperature. This process is known as vernalization. Vernalization defines especially to the promotion of flowering by a period of  low climate. For example; Vernalisation occurs in biennial plants. Biennials are monocarpic plants which normally flower and may die in the second season. Some common examples of biennials are carrots, Sugarbeet, cabbages, etc.

6 0
3 years ago
Select all that are true of capillaries.Continuous capillaries are the most common type. Sinusoidal endothelial cells form a con
timofeeve [1]
The correct answers are a, c, d.
There are three types of capillaries: continuous, sinusoidal (or discontinuous) and fenestrated. Continuous capillaries are the most common type and they form tight junctions. Sinusoidal capillaries form an incomplete lining with several gaps, which allow red and white blood cells and some serum proteins to pass. These capillaries are mainly found in the bone marrow, lymph nodes and adrenal glands. Finally, fenestrated capillaries facilitate the movement of smaller molecules and plasma proteins and are mainly found in the small intestine. The majority of the fluid transport happens through the fenestrated capillaries.
3 0
3 years ago
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