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Jet001 [13]
1 year ago
8

Hi, need help with this question! Thank you!

Biology
1 answer:
melamori03 [73]1 year ago
4 0

Answer:

i think that i dont know

Explanation:

i think that i dont know

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What is layering in vegetative propogation​
Dima020 [189]

Explanation:

Layering is a form of vegetative propagation in which portions of the branches of plant grows while still attached to the plant.

Examples of plant that is propagated using layering are Roses, Honeysuckle, boxwood e.t.c.

  • Layering is a very common vegetative propagation method used by horticulturists.
  • This is an asexual reproduction means.
  • A low growing stem is fixed to the ground usually by a peg and allowed to develop a root system.
  • As the root develops, an exact clone of the main plant grows.

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Human impacts on Agriculture brainly.com/question/12095428

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7 0
3 years ago
100pts I WILL MARK YOU BRAINLESS
Y_Kistochka [10]

Answer:

<u><em>All of the options are correct. </em></u>

Explanation:

In ecology, competition can be described as a fight between two organisms for limited resources like water, food shelter etc. Competition might occur in organisms from different species or it might occur in organisms of the same population.

Let's consider an area where the population of females is lesser as compared to males. In this area, the males will compete for mating with the females.

If there is limited space, birds of an area will compete for nesting sites.

In an area where the population is more than the carrying capacity, the organisms will compete for food.

3 0
3 years ago
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What is the proton gradient used for in photosynthesis?
Dmitriy789 [7]
The energy of the electrons in NADPH are not sufficient for anabolic reactions such as CO2 fixation. These processes also require biochemical energy in the form of ATP. The process of photosynthetic electron transfer also generates a gradient of protons (H+) across the photosynthetic membrane (Figure: Proton Gradient).
8 0
3 years ago
to maintain a line of pure-breeding peas , selective breeders would use a technique called __________.
Basile [38]
To maintain a line of pure-breeding peas, selective breeders would use a technique called artificial cross-pollination. This is a technique were breeders transfer pollen from the anthers of one pea plant (male parent) to a stigma of a flower (female parent).

This technique was developed by Gregor Mendel, the founder of the science of genetics. He was a monk who dedicated his time in research about how genes of plants are carried over through specific species. In his controlled experiment he used the pea plant because they are cheap and readily available from merchants who sold them in different classifications. He also used pea plants because they have the capacity to self-pollinate or cross-pollinate.
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3 years ago
If you look through a microscope and see a cell with chromosomes lined up two by two, what stage of cellular reproduction must y
Ipatiy [6.2K]

Answer:

2. meiosis I only

Explanation:

During the zygotene stage of prophase-I of meiosis-I, homologous chromosomes synapse and are paired up. These paired homologous chromosomes are called bivalents. These paired homologous chromosomes align themselves at the equatorial plate of the cell during metaphase-I. Therefore, when observed through a microscope, cells are shown lined up two by two. During meiosis-II and mitosis, individual chromosomes with two sister chromatids are aligned at the cell's equator in metaphase.

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