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Brrunno [24]
3 years ago
10

Help me with this 2 questions number 3 A and B i mark you as brainlist please

Biology
1 answer:
Roman55 [17]3 years ago
8 0
3A- Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.

3B- Negative feedback loops are used to maintain homeostasis and achieve the set point within a system. Negative feedback loops are characterized by their ability to either increase or decrease a stimulus, inhibiting the ability of the stimulus to continue as it did prior to sensing of the receptor.

Hope I’ve helped ;)
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Which of the following terms is used to describe the physical characteristics of the individual?
Nitella [24]

Answer:

there are no answer choices lol

Explanation:

charactistics

physical features

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attributes

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2 years ago
Ecology and evolution are closely related, as are evolution and genetics. All have an impact on the world around us.
PtichkaEL [24]

Ecology is the science that studies the interaction between living beings and the environment in which they live.

<h3>How can I help with conservation?</h3>

  1. Buy recycled paper avoiding the death of more trees
  2. Have a recycling bin for paper, plastic, metal and glass, to reduce the environmental damage in waste and for the waste to be reused
  3. Recycle toner and ink cartridges from empty printers, to avoid polluting rivers and streams.
  4. If possible buy remanufactured cartridges, avoiding environmental impact
  5. Recycle old newspapers, avoiding the death of more trees.

<h3>What is the evidence for evolution?</h3>

  1. Anatomy. Species may share similar physical features because those features were present in a common ancestor (homologous structures).
  2. Molecular biology. DNA and genetic code reflect the common ancestry of life

With this information, we can conclude that Ecology is concerned with the living beings on the planet and their relationships with each other and with the environment.

Learn more about recycling in brainly.com/question/11861824

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4 0
1 year ago
Suppose you scraped off some of the pale
Reika [66]
By examining the tree bark and recording it’s properties. I would note if the cells move and duplicate, I would also note any living organisms which lay on the surface
7 0
3 years ago
Summarize the effects of progesterone and estrogen
SVETLANKA909090 [29]

<u>Definition:</u>

The sex hormone  and endogenous steroid present in human and other species ' menstrual cycle, pregnancy, and embryogenesis are known as "Progesterone" while the primary sex hormone in females  responsible for the development and control of the female reproductive system and for the characteristics of secondary sex is termed as "Estrogen" or "oestrogen".

<u>Progesterone Effects:</u>

  • Progesterone has a variety of physiological effects which are exacerbated when estrogens are present for an instance in breast tissue, where estrogens permits progesterone to mediate lobuloalveolar development.
  • Progesterone has main effects on human sperm by non-genomic signals, as they move through the female tract before fertilization.
  • Progesterone is called "hormone of pregnancy" as transform the endometrium to its secretory stage for uterine implantation, decrease the maternal immune response to permit for the acceptance of the pregnancy during implantation and gestation, prevent preterm labor, inhibits lactation during pregnancy etc.

<u>Estrogen Effects:</u>

  • Effects structure of human and categorize them as male and female, while females have three kind of estrogen: Estrone (weak and found in women after menopause), Estradiol (strong and it is steroid produced by ovaries ) and Estriol (weakest and waste product after body produces estradiol).
  • It effects ovaries, vagina, Fallopian tube, uterus, cervix and mammary glands.
  • It triggers the release of an egg due to high level during halfway of cycle but decreases after ovulation.

<u>Similarities between progesterone and estrogen: </u>

Progesterone and estrogen  as such do not have similar function but work with coordination as both are need for menstrual cycle functioning and regulation. Estrogens usually travel in fluids through the bloodstream, communicate with cells in the body's various tissues, and provide a message or guidance while progesterone helps to balance pregnancy period  and to implant an egg in uterus.

4 0
3 years ago
What happens when consumers eat producers in the energy pyramid? A Energy transfer forms from the producer to the consumer. B en
Dafna11 [192]

Energy transfers from the producer to the consumer.

Explanation:

  • An organism eats to get energy that is required by its tissue to carry out  metabolic activities.
  • Organisms in an ecosystem are related to each other by there feeding habits.
  • The producers lie at the bottom of a food chain. They bear the ability to convert the solar energy into chemical energy within the cell.
  • They are responsible to drive the flow of energy from the ultimate source into the food chain.
  • When consumers feed on the producers the energy conserved in the tissue of producers get transferred to the consumer in this way the enery transfers from one trophic level to another.
7 0
3 years ago
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