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3 years ago

A chicken egg is a single cell. Why is it so much bigger than other cells?

2 answers:

8 0

D. None of the above.
An egg is a single cell because this cell forms into many after a few months from a chick hatching from the egg.

Fiesta28 [93]3 years ago

8 0

Answer:

D. none of the above

Explanation:

The egg itself is not a cell, but its egg yolk is considered a macrocell (which can be seen with the naked eye). This macrocell is nothing more than an oocyte II when there is no fertilization, or an embryo where no fertilization has occurred.

Regardless of fertilization, the egg forms in domestic chickens, roughly, as occurs in women monthly ovulation (menstruation). Thus, if the breeder's goal is to produce eggs for consumption, then only unfertilized eggs will be obtained, so the macrocell is formed because there was no fertilization.

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Earth's earliest atmosphere may have contained which components? 15.8

vivado [14]

Answer:

Only Water, Oxygen, Nitrogen and ammonia

Explanation:

8 0

3 years ago

biology 2 ch 43 fixed action pattern Which of the following is(are) fixed action pattern(s)? Group of answer choices A chick’s g

sleet_krkn [62]

Answer:

The correct answer is "All of these are fixed patterns".

Explanation:

Fixed action patterns are instinctive programmed responses in different species that are triggered by a specific external sensory stimulus. These stimuli are called sign stimuli. When the sign occurs, the animal starts a sequence of acts in response to the stimulus and continuous until the series of actions is completed. If the animal is interrupted for some reason, it continues its job from where it was interrupted; either the original stimulus is or is not present.

A chick’s gaping mouth induces a feeding response in a parent bird: The stimulus is the gaping mouth, which makes the parents to instinctually respond foraging more and feeding the chick.

A male fruit fly waves his wings at a female fruit fly during courtship: In courtship, the original stimulus is the presence of the female. One of the male´s responses actions is the wave of its wings.

A baby garter snake captures and eats a slug: For the baby snake, the sign stimulus is the slug scent. The snake then responses by capturing and eating the slug.

A European cuckoo hatchling pushes the host bird's egg out of the nest: The stimulus for the cuckoo chick is the presence of the host bird´s egg. When the cuckoo bird emerges from its egg, even before it opens its eyes, it pushes the host out of the nest.

8 0

3 years ago

How can rain and hail fall from the same cumulonimbus cloud?

xenn [34]

When clouds get so full of water droplets that they can not hold any more, the water falls back to the ground as rain but sometimes water droplets freeze and fall to the ground as snow, sleet, or hail.

5 0

3 years ago

Survivorship Curves for Three Different Types of Organisms

emmasim [6.3K]

Answer:

As the picture for the curves is not given, lets look at the type III species generally.

Explanation:

A survivorship curve can be described as a graph which represents the number of individuals which are able to survive to a particular age for each given species.

The Type III species can be described as those species of the survivorship curve which have a high death rate immediately after death. This is because these organism tend to produce a wide number of eggs and as protection is not taken for them by the parents, hence most of the fertilized eggs or zygotes tend to die. These organisms hence produce a large number of eggs so that some of them will have the capability to survive.

4 0

3 years ago

Can someone help me with this question? Thank you!!

babymother [125]

Answer:18 kcal

Explanation:

Law of ecological pyramid - the production of organisms of each subsequent trophic level is always on average up to 10 times less than the production of the previous one

1800/10=180

180/10=18

6 0

2 years ago

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