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bearhunter [10]
2 years ago
9

7 grade science pls help

Biology
2 answers:
ser-zykov [4K]2 years ago
7 0

Answer:

A method farmers use to raise strong animals and crops

Explanation:

NeX [460]2 years ago
6 0
The correct answer is D
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1. Describe the movements of transverse adduction and flexion for the pectoralis major and biceps brachii muscles.
Cerrena [4.2K]

Answer and Explanation:

The pectorals major is an enormous, fan-formed muscle covering the chest. It is included clavicular and sternocostal areas. Adducts and turns the upper arm. Transverse adduction and flexion of the pectoralis major is smooth movement. You can see the muscles extending far and contracting back effectively.  

The biceps brachii is a two-headed muscle. Despite the fact that most of the bulk is found anteriorly to the humerus, it has no connection deep down itself. The activity is Supination of the lower arm. It likewise flexes the arm at the elbow and at the shoulder. In the biceps brachil there isn't a lot of expansion found in the muscle contrasted with the pectoralis major.

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3 years ago
In one type of cell division a single cell form 2 new cells this process is.called mitosis what is a reason that human skin cell
Oksanka [162]
Mitosis happens to our skins cells to replace those that are damaged or have died. Cells have a limit, and then they commit cell suicide or apoptosis. Before dying or be damaged, the skin cells first reproduce themselves in order help keep our body protected with our first layer of defense.
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3 years ago
How is a scientific law different from a scientific theory?
Sholpan [36]

Answer:

i believe the awnser is c

6 0
2 years ago
What type of biological macromolecule is the main component of the plasma membrane
nexus9112 [7]

<u>L</u><u>ipids</u>

Explanation:

The principal components of the plasma membrane are lipids

7 0
3 years ago
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Question 4
Juliette [100K]

Answer:

In eukaryotes, thousands of chemical reactions are able to take place in  separate compartments called organelles.

Explanation:

Organelles are specific cellular structures that are the means of compartmentalizing the various functions that occur within cells.

Examples of organelles and their functions are:

- <u>Nucleus</u>: contains DNA and in it occur the replication of this molecule and its transcription into RNA.

- <u>Rough endoplasmic reticulum</u>: protein synthesis and conjugation of these molecules occurs.

- <u>Mitochondrion</u>: houses all oxidative phosphorylation reactions and the electron transport chain for ATP synthesis to occur.

The organelles are then the structures that allow the development of the multiple functions that a cell has.

The other options are not correct because:

  • <em><u>Bacteria</u></em><em> is a prokaryotic organism. </em>
  • <em><u>Prokaryote</u></em><em> refers to simple organisms that lack organelles. </em>
  • <em><u>Proteins</u></em><em> are biomolecules that allow the structure and function of living beings.</em>
8 0
2 years ago
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