What are primary producers?

Answers

Answer 1
Answer: Primary producers are organisms in an ecosystems that create biomass from inorganic compounds. In almost all cases, these producers are plants.
Answer 2
Answer: They're not called primary producer, they're just producer. Producer are species who make their own food like plants

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Neural signals from olfactory cilia are transmitted to the __________ and then transmitted to the __________ and other areas of the brain.
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The startle reflex occurs when

Answers

This startle reflex (aka moro reflex) is/was present in us as newborns.

It's triggered when there's an unexpected reaction. Example: Loud noise, sudden movement.

The baby will tighten his/her body, fling out arms, sort of like giving him/herself a hug. It happens because the baby is trying to protect itself from harm.

It normally leaves thanks to the mother's care, normally 6 weeks after the newborn is born. 

Units of dna that encode for specific characteristics is called

Answers

I think it might be rna but I’m not too sure

Four stages of mitosis

Answers

Interphase, prophase, metaphase, anaphase

The four stages of mitosis is - prophase, metaphase, anaphase, an telophase.

Put the following species in the order in which they hear ranges of sound, from low to high pitches 1. sea turtles 2. humpback whales 3. humans 4. dolphins

Answers

Among the provided above, below is the sequence of species in the order in which they hear ranges of sound, from low to high pitches:

2. humpback whales
1. sea turtles
3. humans
4. dolphins

Thank you for posting your question here at brainly. I hope the answer will help you. 

Answer:

The correct answer is - humpback whales →sea turtles→humans→dolphins.

Explanation:

The hearing of sound is measured in hertz which is the unit of the sound that depends on the different frequencies of individual produce. The range of hearing sound is different in different animals.

Humpback whales produce sound between 30 to 8000 Hz however whales sense the vibration made by their song or sound by another whale. Sea turtles are able to hear in between the 20 to 1000 Hz whereas humans are able to hear 20 to 20000 Hz.

The highest hearing range of the sound is by dolphins from giving options as they are able to hear sound between 40 to 130000.

Thus, the correct answer is- humpback whales →sea turtles→humans→dolphins.

How are alleles are passed from the parents to the offspring

Answers

Allels are passed theough reproduction and they are shown by the dominant trait. A homozygous recessive gene is passed to 25% of the second generation if offspring. You can find the genes passed down by using a punnete square

What hormone does the pineal gland release? A. melatonin
B. testosterone
C. estrogen
D. insulin

Answers

The hormone does the pineal gland release A. melatonin. Therefore , A. melatonin is correct .

Pineal Gland: The pineal gland is located deep within the brain, in the epithalamus region. It is a photosensitive organ, which means it can detect changes in light and darkness.

Melatonin Production: Melatonin production is closely tied to the perception of light. When the surroundings become dark, the pineal gland is stimulated to produce melatonin, which is released into the bloodstream.

Circadian Rhythms: Melatonin is a key player in the body's circadian rhythms, influencing the sleep-wake cycle, body temperature, and various hormonal fluctuations throughout the day and night.

Sleep Regulation: The pineal gland's release of melatonin helps promote drowsiness and prepares the body for sleep. This is why melatonin supplements are sometimes used to address sleep disorders or jet lag.

Other Functions: Beyond regulating sleep, melatonin also has antioxidant properties and is thought to play a role in immune system support and the regulation of reproductive hormones.

Light Exposure: The suppression of melatonin production during the day is primarily due to exposure to natural and artificial light. This is why it's often recommended to limit exposure to screens before bedtime to help maintain healthy sleep patterns.

For such a more question on hormone                                                                                                                                                                          

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Answers:

A. melatonin

Explanation:

Melatonin is a neurotropic hormone with the antioxidant group indolamina, which is synthesized by pincal glands located in the brain from the amino acid compound tryptophan.