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diamong [38]
2 years ago
11

What protein is used in shortening the muscle cells to produce movement?

Biology
2 answers:
Vinvika [58]2 years ago
7 0

Answer:

Contractile

Explanation:

tensa zangetsu [6.8K]2 years ago
6 0
<span>contractile is the answer for ur question</span>
You might be interested in
Which of the following statements correctly determines the process when following the scientific method?
crimeas [40]

Answer:

A) Formulate question,conduct research,propose hypothesis,test hypothesis

Explanation:

The scientific method is pertinent to the success of a scientific experiment. The scientific method is a sequential steps of processes involved in an experimentation. The correct order of steps that determines the process when following the scientific method are:

1) Formulate question: Asking a question about what has been previously observed is the key to starting a scientific method.

2) Conduct research: Research is done based on a previous observation that has been made by in order to gather necessary information.

3) Propose hypothesis: A hypothesis is a predictive statement or explanation to an asked question about the experiment that can be tested. It usually goes in an IF, THEN format.

4) Test hypothesis: As stated in the previous step, a hypothesis must be testable, which is done by conducting an experiment. The outcome of the experiment proves or disproves the hypothesis.

6 0
3 years ago
When does the total number of chromosomes get reduced from 46 pairs to 23 individual chromosomes? View Available Hint(s) When do
ivann1987 [24]

Answer:

23 pairs of chromosomes (46 individual chromosomes) are redued to 23 individual chromosomes in meiosis I.

During Meiosis I

Explanation:

Meiosis is a type of cell division that results in four daughter cells with each having half the number of chromosomes as in the parent cell. During meiosis, cell division occurs twice because before the two halves of a duplicated chromosome (sister chromatids) is separated, it still needs to separate homologous pair of chromosomes, which is a similar but non-identical pair of chromosomes received from both parent. Hence, meiosis occurs in a two step division process; Meiosis I and Meiosis II.

Note that, a diploid cell contains 23 pairs of chromosomes ( 46 chromosomes in total). Each pair of chromosome is from the haploid gamete produced by each parent after meiosis.

Before going into meiosis I, the cell must first undergo growth and replicate its DNA in the interphase stage just like in mitosis. In the Prophase I of meiosis I, chromosomes condense as in mitosis but also pair up. Each chromosome aligns with its homologue pair to form a structure called TETRAD or BIVALENT.

Homologous pairs, not individual chromosomes (23 pairs in number) line up at the metaphase plate for separation during metaphase I.

In anaphase I, the homologues are pulled apart by the spindle fibres and move apart to opposite ends of the cell. The sister chromatids of each chromosome, however, remain attached to one another and don't come apart. Hence, the cell now has 23 chromosomes on one side of the cell, and another 23 on the other side.

After cytokinesis (division of the cytoplasm) in meiosis I, two daughter cells are produced and each now possesses 23 individual chromosomes (haploid) different from the parental 23 pairs (diploid).

N.B: Sister chromatids separate in the anaphase of meiosis II, where each chromatid is counted as an individual chromosome.

4 0
3 years ago
What are some effects of gravity we can experience on Earth?
torisob [31]

Answer:

What goes up must come down

Explanation:

Whenever we jump up or throw a ball in the air, we(or the ball) always come back down to the Earth because of the Earth's gravity.

7 0
3 years ago
Read 2 more answers
Which is TRUE about prokaryotic cells?
solong [7]

Answer:

Answer C is correct answer

They have DNA

Hope it helps

TC

have a great time

4 0
2 years ago
Why does ice become less dense than water?
myrzilka [38]
Ice actually has a very different structure than liquid water, in that the molecules align themselves in a regular lattice rather than more randomly as in the liquid form. It happens that the lattice arrangement allows water molecules to be more spread out than in a liquid, and, thus, ice is less dense than water.
8 0
3 years ago
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