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kakasveta [241]
3 years ago
14

What is theory of to observe the neucles in cheek cells​

Biology
1 answer:
solong [7]3 years ago
5 0

Answer: The theory of cheek cells is used for the identification of cheek cells.

Explanation:

The cells of cheek do not have cell wall. They have a cell membrane which allows on certain molecules to pass through it. The nucleus is located centrally in the cheek cells and it stores the DNA. It can be stained with the help of the methylene blue reagent. It appears blue in color which can be observed under the microscope. The cheek cells can be isolated from the buccal cavity by using cotton buds and cotton swabs can help in isolating the cells.

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Which of the following best illustrates a type I survivorship curve, with higher death rates at older ages? Which of the followi
Rama09 [41]

Answer:

large mammals such as gorillas

Explanation:

The survivorship curves refer to the graphical representation of the proportion of the fraction of survivors or the individuals at a given age.

There are three types of survivorship curves which can be constructed by studying the life history of the organisms.

The type I survivorship curve is the curve which can be formed with the organism which has a high survival rate at the younger and middle age and high death rate at the older age. The type I curve can be characterised by its convex shaped. The type I is showed by the large mammals like gorilla, humans and many others.

Thus, large mammals such as gorillas are the correct answer.

4 0
3 years ago
Which is not a sign of FAS?
igomit [66]
Flat face I believe is your answer
8 0
3 years ago
Read 2 more answers
Which statement best explains why the population stabilized and why?!
goldenfox [79]

Answer: C. The population size became limited due to factors such as availability of food.

Explanation:

Out of all the choices, C is the most likely to happen since more often then not, food runs out because a species has too many members. C is an example of the environment’s carrying capacity limiting the chipmunk species.

Since we are not told if the chipmunk population is really small, interbreeding may not happen. Predators hunt prey, not eat fruits like chipmunks do (I’m assuming what chipmunks eat.) If there was a predator species that came in, they would hunt the chipmunks instead of competing for the same resources. D just doesn’t make much sense in my opinion because that wouldn’t limit the chipmunk population.

3 0
2 years ago
The female gametophyte develops in the ovule from diploid (2n) tissue that undergoes meiosis and eventually forms the haploid (n
Advocard [28]

Megasporangium  tissue gives rise to the female gametophyte.

<h3>What is the name of the diploid tissue that gives rise to the female gametophyte?</h3>
  • Three of the four haploid megaspores worsen into antipodal cells interior the female gametophyte.
  • The central cell of the female gametophyte contains two cores that when fertilized gotten to be the endosperm.
  • Megasporogenesis alludes to the advancement of megaspores from the megasporocyte, the cell that experiences meiosis.
  • Meiosis of the megasporocyte core comes about within the arrangement of four haploid megaspore cores.
  • In most taxa, meiosis is taken after by cytokinesis, coming about in four megaspore cells.
  • This design is named monosporic megasporogene - sis; since of the four megaspores delivered, as it were one of them contributes to the female gametophyte

To learn more about female gametophyte from the given link

brainly.com/question/1553953

#SPJ4

3 0
1 year ago
Which of these factors is associated with sustainable farming?
s344n2d4d5 [400]

Answer:

The answer is D. Food security

Explanation:

Sustainable Agriculture:

Sustainable agriculture or farming is a combination of agricultural policies, practices and measures that yield the maximum profits and benefits without negatively impacting the environment.

Sustainable agriculture, as an idea, basically means to utilizes resources responsibly so that the future generations can reap the benefits as well.

Sustainable Farming Approaches:

Approaches to sustainable farming include policy as well as farming technique interventions. Some of these methods are:

  • Crop rotations that involve planting diverse crops on a piece of land, as opposed to monoculture and intensive farming that gradually makes the soil nutrient deficient.
  • Cover cropping after a season of monoculture to prevent leaving the soil bare til the next season.
  • Use of renewable energy resources and integrated pet management to generate energy efficiently and minimize crop losses respectively.

Food Security:

Food security entails that healthy, nutritious and safe food is readily i.e. physically and economically available for all people. Food security is one of the major sustainability goals.

3 0
3 years ago
Read 2 more answers
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