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Leto [7]
3 years ago
6

The ecosystem of a lake includes

Biology
1 answer:
zysi [14]3 years ago
3 0

A lake ecosystem includes biotic (living) plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions. ... Lentic ecosystems can be compared with lotic ecosystems, which involve flowing terrestrial waters such as rivers and streams.
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In humans, the hormone testosterone enters cells and binds to specific proteins, which in turn bind to specific sites on the cel
LuckyWell [14K]

Answer:

As a transcription factor

Explanation:

Testosterone is a male sex hormone secreted by the testicles which promote the growth of the male reproductive organs and the male characters like muscle buildup.

The hormone shows the paracrine effect and thus act on the target cell at distant. The mechanism of action of the testosterone is that it controls the gene expression of various other genes.

The testosterone binds the specific proteins which activate the expression of the gene that is they acts as a transcription factor which activates the expression.  

Thus, as a transcription factor is correct.

4 0
3 years ago
Which part of your brain is essential for receiving information that you are moving your legs?
stealth61 [152]

Motor coretex is essential for receiving information that you are moving your legs.

<h3>What is motor cortex?</h3>
  • The motor cortex's main job is to provide signals that control how the body moves. It is anterior to the central sulcus and a portion of the frontal lobe.
  • The primary motor cortex, premotor cortex, and supplementary motor area make up this region.
  • The motor cortex generates signals that are particular to movements and sends them to the muscles via spinal cord circuits and motoneurons to regulate motor behavior.
  • For the execution of movements to be precise, coordinated muscle activation patterns are required.

Learn more about the structure of brain with the help of the given link:

brainly.com/question/17141128

#SPJ4

8 0
1 year ago
Which of the following best describes what happens to a cell's genetic material during the process of meiosis II?
balandron [24]

Answer:The answer is option A sister chromatids are separated from each other to form gametes.

Explanation:

Meiosis is a  type of cell division which produces 4 daughter cells with different genetic material. The ploidy number or set of chromosomes is reduced to half in the newly formed daughter cells.This process usually proceeds in two divisions-meiosis I and meiosis II with four stages in each division which are prophase, metaphase, anaphase and telophase.Sister chromatids separate from each other during anaphase II of meiosis II which produces four haploid gametes from two intermediate cells formed by meiosis I.Thus, sister chromatids are separated from each other to form gametes is the correct answer.

5 0
3 years ago
One end of the rope is vibrated to produce a wave with a wavelength of 0.25 m. The
evablogger [386]

Answer:

3) 0.75m/s

Explanation:

The wavelength of a wave is calculated using the formula;

λ = v/f

Where!

λ = wavelength of wave (m)

v = velocity or speed (m/s)

f = frequency of wave (Hz)

According to this question, one end of a rope is vibrated to produce a wave with a wavelength (λ) of 0.25 m and frequency (f) of 3.0 Hz.

Using λ = v/f

v = λ × f

v = 0.25 × 3

v = 0.75m/s.

5 0
3 years ago
What are the likely steps of theories and laws?
sleet_krkn [62]
Is a proposition that has not been empirically proven yet, and that attempts to describe or justify a system or phenomenon.
5 0
3 years ago
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