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wel
3 years ago
5

Which sugar or sugars are broken down by lactase? How do you know?

Biology
1 answer:
levacccp [35]3 years ago
3 0

Answer:

Lactase breaks down lactose, the sugar in milk which is made of several parts.

Explanation:

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In times of stress the sympathetic nervous system stimulates the _____ which then secretes _____.
yawa3891 [41]
In times of stress the sympathetic nervous system stimulates the adrenal medulla which then secretes catecholamines. The catecholamines includes; Dopamine, epinephrine and norepinephrine. Catecholamines are made by nerve tissue, the brain, and the adrenal glands. They help the body respond to stress or fright and prepare the body for "fight or flight" reactions.
8 0
3 years ago
When describing cells, this refers to a cell that has yet to develop into a particular cell variant
bagirrra123 [75]

Answer:

The most appropriate answer would be a stem cell.

Stem cells are the undifferentiated cells which have the capability to divide to give rise to more number of the same type of cell.

In addition, these cells have a capability to develop in a particular cell type or specialized cell by the process of cell differentiation.

For example, the embryonic stem is undifferentiated pluripotent cells which are capable of giving rise to almost all types of cells of the body.

3 0
3 years ago
Which of the following is an example of a transgenic organism?
zhenek [66]

Answer:

d. a bacterium with human gene for producing insulin

Explanation:

Transgenic organisms are the organisms in which the foreign DNA is introduced by using the molecular techniques for obtaining a particular result. This foreign DNA can be introduced using a vector called plasmid vector.

One of the examples of transgenic organisms is E.coli with the human gene for producing insulin. So for producing artificial insulin, the gene which produces insulin peptide is ligated  in a plasmid vector and then this plasmid is introduced in the bacterium where this plasmid replicates and produces insulin. So the correct answer is d.

5 0
3 years ago
How do scientist choose their methods to investigate a question?​
Fiesta28 [93]
They use the scientific method
7 0
3 years ago
A similarity between these systems is that they all
lukranit [14]

Answer:

Work together to maintain a stable internal environment.

Explanation:

The given figure includes various systems like the muscular system, nervous system, circulatory system, and digestive system. These systems are involved in performing various life processes and thus, help together to maintain a stable internal environment in order to sustain life.

3 0
3 years ago
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