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3 years ago

PLZ help ill give Brainliest

Biology

2 answers:

slega [8]3 years ago

4 0

Answer:

Explanation:

More food, higher population is allowed due to influx of supplies

algol [13]3 years ago

3 0

Answer:

The answer is B

Explanation:

The answer is B because the population of the Spider wasp is growing due to climate change and their ability to spread out which mean they will need more food to support their growing population which is why more prey can lead to an increase in population.

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Describe the structures of proteins and nucleic acids, and then explain the relationship between these two molecules within a ce

barxatty [35]

Proteins are large biological molecules consisting of one or more chains of amino acids. Proteins differ from one another primarily in their sequence of amino acids, which is decided by the nucleotide sequence of their make-up, and which usually results in folding of the protein into a three-dimensional structure that determines its job.
 Nucleic acids are linear polymers (chains) of nucleotides. Each nucleotide consists of three things: a purine , nitrogenous base a pentose sugar, and a phosphate group.
 
Basically Proteins are chains of amino acids, nucleic acids are chains of nucleosides (base+sugar+phosphate), and the sequence of nucleic acid results in the specific sequence of amino acids in the protein, finnally determining its shape and function.

4 0

3 years ago

To further study anti-nAChR antibody function, the researchers wanted to replicate the experiments described in the passage in o

Aloiza [94]

Answer:

B/ Because the electrolyte rich baths were infused with in consistent amount of Ach.

Explanation:

Why B? Because the electrolyte rich baths were infused with in consistent amount of Ach. Used concentrations * Ach used, thus we get double the result.

Not A: Because the control need to be used.

Not C: Because autoimmune antibodies are transported to every tissue of body including skeletal muscle.

Not D: Mice and other rodents are often used as animal models.

3 0

3 years ago

Q - Describe the Mitoses with the help of diagram. write its different phares and explain them.

bonufazy [111]

Answer:

Mitosis is a type of cell division in which single haploid cell (n) or diploid cell (2n) divides into two haploid or diploid daughter cells that are same as the parent.

Mitosis occurs in somatic cells of plants and animals. In this cell division, the two daughter cells have the same number of chromosomes as that in the parent cells.

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase.

1.Prophase:-

It is the first visible stage in karyokinesis. The chromosomes appear as long coiled threads called chromatids. The chromatin becomes shorter, thicker and visible due to the condensation of DNA. The chromatins are now called chromosomes. Stainability of nucleus increase. Each chromosome starts to splits longitudinally into two sister chromatids. These sister chromatids are attached to each other at the centromere. The nuclear membrane and nucleolus start to disappear and by the end, it will be completely disappeared.

ii. Metaphase:-

Nuclear membrane and nucleolus completely disappears and simultaneously appearance of spindle fibers. Spindle fibers are attached to the centromere of a chromosome. The chromosomes are arranged on the equatorial plane. The process of gathering of chromosomes in equator is called congressional and plate formed is called metaphasic plate.

iii. Anaphase:-

The centromere of each chromosome splits into two sister chromatids and forms two daughter chromosomes. The daughter chromosomes are pulled towards the poles due to the contraction of spindle fibres and stretching of interzonal fibers. During polar movement, the chromosomes show different shapes i.e. J, U, V, L or I shaped in appearance. At the end of anaphase, each pole will get one set of daughter chromosomes. It is the shortest phase and is also known as a migratory phase.

iv. Telophase:- The daughter chromosomes reach respective poles and uncoil and become thin, long and visible. The spindle fibres start disappearing and finally disappear. The nuclear membrane and the nucleolus reappear.

Two nuclei are formed at the end of telophase. Both the nuclei have the same number of chromosome as the parent cell. It is the last visible stage of karyokinetic and is also known as reorganization phase.

It is followed by cytokines or division of cytoplasm.

Explanation:

5 0

2 years ago

Help me on problem 10

Bezzdna [24]

The energy that the hawk has taken isn't enough for another animal to get any benefit therefore the pyramid has a limitation.

6 0

3 years ago

What type of molecule contains the most energy?

Effectus [21]

Answer:

Lipids

If i were to guess, without any answer choices, I would say that we get out energy from carbohydrates, and we store energy in lipids, so Lipids (being long chains) might have the most energy.

Explanation:

Please tell me if this is wrong, I did not have much to work with without any answer choices, and this was very broad. :)

4 0

3 years ago