(8.8A) Which star is hotter and brighter than our sun?

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Answer:

Humans drinking raw date palm sap was the cause of the Nipah virus outbreak in Bangladesh. Scientists found Nipah virus in bat excretions and discovered that bats were contaminating date palm juice with their excretions (saliva, urine).

Explanation:

Nipah virus can spread to people from:

1) Direct contact with infected animals, such as bats or pigs, or their body fluids (such as blood, urine or saliva).

2) Consuming food products that have been contaminated by body fluids of infected animals (such as palm sap or fruit contaminated by an infected bat).

Answer:

a)Osteoclasts

b)Osteoblasts

Explanation:

a) destroys the bone matrix

b) have osteogenic functions

Bone remodeling is a function of cell - Osteoclast, and osteoblast

Bone remodeling is a lifelong process where mature bone tissue is removed from the skeleton called bone resorption and new bone tissue is formed called ossification or new bone formation.

Thus, the correct answer is - Osteoclast and osteoblast.

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Answer:

B Requires building dams that can harm ecosystems

Answer:

b

Explanation:

Answer:

A. Homologue.

B. Chiasma.

C. Synaptonemal.

D. Synaptonemal.

E. Synapsis.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Synaptonemal complex can be defined as a network of proteins that is responsible for holding homologous chromosomes (homologues) together.

Generally, a synaptonemal complex (protein lattice) is formed between homologous chromosomes during mitosis and meiosis. Also, synaptonemal complex is important for the formation of the four sister chromatids referred to as tetrads.

Furthermore, the synaptonemal complex (protein lattice) has a tripartite structure which comprises of the following components;

I. SC protein-1 (SYCP1).

II. SC protein-2 (SYCP2).

III. SC protein-3 (SYCP3).

In conclusion, the synaptonemal complex plays a significant role in synapsis, recombination and chromosome pairing.

Matching the various terminologies in genetics with their description, we have;

A. Homologue: one of a pair of chromosomes with similar genetic information and from different sources like the sperm and egg.

B. Chiasma: several X-shaped structures may be visible under the microscope and indicate where crossing over has occurred.

C. Synaptonemal: a lattice of protein holds two replicated chromosomes in precise register with one another.

D. Synaptonemal: four chromatids are held together by a zipper-like structure.

E. Synapsis: a process in which pairs of homologous complex chromosomes line up side by side.

Answer:

abiogenesis

Explanation:

a (not) biogenesis (coming from other life forms)

Biogenesis would mean that it's coming from other life forms,

Natural selection is a part of evolution (what is there to select?)

Variation is also a part of evolution (not related)

Answer:

pericardium

Explanation:

A double-walled membrane, the pericardium, separates the right and left chambers, preventing oxygen-rich blood from mixing up with the one without oxygen. So, the heart functions go smoothly. Deoxygenated blood enters the right atrium.

Answer:

Mitochondria

Explanation:

Living organisms, no matter how microscopic, require energy for their metabolic activities. However, this energy is released for use in form of ATP when the organism undergo the process of cellular respiration, a metabolic process that breaks down food to release its stored energy.

However, this cellular respiration is a chemical reaction that takes place in an organelle of an eukaryotic cell called MITOCHONDRION (plu- mitochondria).

Answer:

Muscle tissue

Nervous tissue

Explanation:

It's a specialised tissue found in animals which functions by contracting thereby applying forces to different parts of the body

Organised Cells in the nervous system which is the organ system that controls the body's movements,sends and carries to and from different parts of the body

Answer:

The wrong protein can be created or the right one with abnormal function.

Explanation:

The mutated DNA is taken through the whole protein synthesis process and translated by the rRNA and tRNA to create a protein from that new sequence.

Answer:

1. The central dogma of molecular biology is DNA >>transcription>> RNA >>translation>> protein

2.  DNA replication refers to the genetic process of generating two identical DNA molecules from one DNA sequence. Recombination refers to the exchange of genetic material (DNA) between non-sister chromatids during cell division (meiosis)

Explanation:

Gene expression (also known as transcription) is the process by which a specific fragment of DNA called gene is used as template to synthesize an RNA molecule, usually a messenger RNA (mRNA), which is in turn used as template to create a protein. This final product (i.e., the protein) has an effect on the phenotype of the individual. The DNA template is a single-stranded ordered polynucleotide chain composed of four different types of nitrogenous bases: Adenine, Thymine, Guanine and Cytosine. In the complementary RNA molecule, Thymine bases are replaced by Uracil bases. Moreover, DNA replication refers to the process by which cells duplicate their genetic material before cell division (either mitosis or meiosis). During this process, both DNA strands are separated and each one is used as a template to synthesize a new DNA molecule. Finally, recombination or crossing over is a process where non-sister chromatids exchange genetic material during meiosis I (Prophase I). Recombination is known to increase genetic variation in resulting meiotic cells.

Answer:

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Answer:

The answer is C.

Explanation:

This is because for A, this statement says nothing about corundum being yellow which means that this doesn’t apply and is incorrect. For B is pretty much the same as A, this statement about corundum doesn’t say anything about it being able to flavor or being flavorful. Lastly for D, the fact that corundum is hard means it would be impractical and probably impossible to use it as pencil lead because, all lead it doing with a pencil is being crushes and ground into the paper as you write.

Hope this helps.

Answer:

B. Runoff

Explanation:

Answer: Her times at lunch were always faster, no matter what type of meal she ate.

Explanation:

Answer:

1. Individuals with thicker fur had a survival advantage in the cold environment, allowing these individuals to reproduce more often and create more offspring.

2. random mating

3. The green skin color is being selected over blue skin color.

4. DNA

5. They show intermediate steps in the evolution process.

6. Different islands had very different food resources available, and only individuals that were adapted to eat those food resources survived and reproduced on that island.

7. Those who have traits that help them survive are able to reproduce, and their offspring have those traits, leading to a change in the species over time.

8. It makes them unrecognizable to the immune system.

9. The exposure of human populations to less UV light required a reduction in melanin to produce more vitamin D for healthier bones.

10. the correlation between air pollution and white moth predation

11. It is a biological process that leads a population to have a widespread expression of an advantageous trait.

Answer:It makes the unrecognized to the immune system:)

Explanation:

Answer:

A) Adaptation

Answer: See explanation

Explanation:

Epinephrine is also referred to as Adrenaline and it is formed in the medulla oblaganta by adrenal glands and neurons. Some of it's functions include:

1. To help increase the cardiac output.

2. It is vital for respiration as it speeds up breathing.

3. To raise the level of glucose in the blood.

4. To increase the blood pressure by stimulating heart rate.

Answer:

The photobiont supplies the association organic carbon from photosynthesis, and the mycobiont ensures protection and regulates the supply of minerals and water. The nutritional exchange between partners is probably much more complex than exchange of water and minerals for organic carbon. Thus, the correct answer is option B.

Answer:juegan maincra

Explanation:porque si

Answer:

Chemical and mechanical digestion are the two methods your body uses to break down foods. Mechanical digestion involves physical movement to make foods smaller. Chemical digestion uses enzymes to break down food.

Explanation:

Answer:

While mechanical digestion involves physical movements, such as chewing and muscle contractions, chemical digestion uses enzymes to break down food

Explanation:

The answer is they have more rod cells

Answer:

50%

Their are 50% chances for their baby to have type O blood.

Answer:

digests food, absorbs released nutrients, and excretes food components that are indigestible.

Answer:

The Moon, Venus and Mars are the planets nearest to the Earth.

Answer:

a 100 on the test

Explanation:

Answer:

C.)

Uses the energy inside an atom's nucleus to generate electricity

Explanation:

Flowing water creates energy that can be captured and turned into electricity. This is called hydroelectric power or hydropower. The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir.

Answer: The answer is 4

Explanation:

Vitamin D controls your skin pigment. It's kind of like when someone has an iron deficiency they get bruises and they turn a whiter shade.

Hope I helped :)

The factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection are the impact of UV radiation on folate and Vitamin D levels in human populations.

 Ultraviolet B radiation produces diet D in human skin. Ultraviolet radiation can, however, smash folate. Folate is critical for the speedy increase of cells, particularly at some point in which its deficiency can motivate neural tube defects. The human frame additionally has a mechanism to save you overproduction of vitamins.

Ultraviolet is a shape of electromagnetic radiation with a wavelength from 10 nm to four hundred nm, shorter than that of seen light, but longer than X-rays. UV radiation is found in sunlight and constitutes approximately 10% of the whole electromagnetic radiation output from the Sun.

Thus it is learned that the above answers are well-explained factors that were determined to directly cause the loss of skin pigmentation in humans as a result of natural selection bout.

To learn more about natural selection refer to the link :

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Answer:

AZT inhibits reverse transcriptase enzyme.

Explanation:

AZT inhibits reverse transcriptase enzyme that is used by the virus to make a DNA copy of its RNA. This Azidothymidine prevent reverse transcriptase enzyme from doing its function properly. Due to absence of this enzyme, the HIV virus is unable to make copies of its DNA and this Azidothymidine stops the life cycle of the virus and slows the growth of AIDS disease so that's why this drug was considered effective against HIV virus and used in the treatment of AIDS disease.

Answer:

.V.JHRM.TLNGOYIG

Explanation:

Answer:yo am cool lol

Explanation:

Answer:

It's (B) crossing over and (D) alleles.

I hope it helps.

Explanation: