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Nikolay [14]
4 years ago
11

Why does holden have difficulty breathing after only a short run to the main gate?

Biology
1 answer:
Mice21 [21]4 years ago
8 0

He is a heavy smoker. Mostly cases of shortness of breath are because of heart or lung conditions. Your heart and lungs are one of the carrier in transporting oxygen to your tissues and taken away carbon dioxide, and problems with either of these processes affect your breathing.

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For mendels first experiment what was p1 generation's genotype and phenotype?
mamaluj [8]
Answer:
First xperiment performed by Mendel was related to height of pea plant. Pea plant has two types of height, that is tall plant and dwarf plant. Genotype for tall plant was TT and genotype for dwarf plant was tt.
6 0
4 years ago
A blank is a kind of lipid that can store energy for a long period of time. These lipids are made up of long chains of carbon an
Molodets [167]

A Fat is a kind of lipid that can store energy for a long period of time. These lipids are made up of long chains of carbon and oxygen atoms bonded to a backbone structure. Hope this helps!

6 0
3 years ago
You do things to keep your body in balance every day. What things do you try to keep balanced in your everyday life?
olga nikolaevna [1]

Answer:

Stretches, Exercise, run 30 mins a day, eat healthy food like apples strawberries, drink water ,and sleep at the best time of the day around 9:30 or 10:26 pm

8 0
4 years ago
Two advantages of using meters as a measurement of length rather than old measurements of length
vazorg [7]

Answer:

Explanation:

Metric measurement is easier to learn because the units name have the same root word all over places that it is being used.

Accuracy

The use of meter ensures accuracy of measurement rather tham using the old method

It is an easier and convienient method to use in taken measurement.

It is an international system of unit hence it allows for continuity and transparency anywhere in the world.

It allows accurate conversion rate when using meter than old method.

5 0
4 years ago
A) Describe the first interaction that triggers signaling to begin in a target cell.
sergey [27]

Answer:

Ligand-receptor interaction is the first interaction that triggers cell signalling.

Ligands are the hormones, drugs or neurotransmitters that specifically bind with receptors present in cell surface to initiate cell signalling. Ligand binding to the receptor is reversible. Binding of the ligand to the receptor can activate or inactivate receptor. Activation may lead to cell signalling pathways. Inside cells, there are secondary molecules which on activation starts a cascade of reactions. which in-turn regulate the function of the ligand molecule.

At first, the activated receptor relates with G proteins molecules in the cell.

before the ultimate physiological effect of the ligand on the cell's behavior is produced Therefore, the cellular signaling starts as soon as the first messenger (the ligand) binds to its receptor.

hope this helps

6 0
4 years ago
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