The portion of the Earth and atmosphere where life exists is referred to as the ecosystem.
A True
B False

Answer:

Metallic structure with black colour body.

Explanation:

The substance has metallic structure and black colour body will have greatest temperature among other substances because metallic structure and black colour of body heat up very quickly. Metals have free electrons which make it the best conductor of electricity and heat while on the other hand, black colour is a good absorbent which absorb heat very quickly so that's why we can say that metallic solids are the substance that have the greatest temperature.

Answer:

copper

Explanation:

it copper because it have less specific heat (j/kgoc)

Answer:

Sandstone

Sandstone contains fossils of creatures such as trilobites, brachiopods, crustaceans, bryozoans and plants. Remains of land animals like mastodons and dinosaurs are much more likely to be found in sandstone.

Explanation:

thank me later

the father can contribute an X or Y to the baby

Answer:

.........................

Explanation:

.................

Answer:

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Answer:

the direction of force.

2 ) Fertilization

Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote. The egg and sperm are haploid, which means they each contain one set of chromosomes; upon fertilization, they will combine their genetic material to form a zygote that is diploid, having two sets of chromosomes. A zygote that has more than two sets of chromosomes will not be viable; therefore, to ensure that the offspring has only two sets of chromosomes, only one sperm must fuse with one egg.

In mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. When a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reaction, take place. In placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane. The fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. Fusion between the oocyte plasma membrane and sperm follows and allows the sperm nucleus, centriole, and flagellum, but not the mitochondria, to enter the oocyte. The nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome. This process ultimately leads to the formation of a diploid cell called a zygote. The zygote divides to form a blastocyst and, upon entering the uterus, implants in the endometrium, beginning pregnancy.

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Process of fertilization: (a) Fertilization is the process in which sperm and egg fuse to form a zygote. (b) Acrosomal reactions help the sperm degrade the glycoprotein matrix protecting the egg and allow the sperm to transfer its nucleus.

To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg. If this mechanism fails, multiple sperm can fuse with the egg, resulting in polyspermy. The resulting embryo is not genetically viable and dies within a few days.

Cleavage, the Blastula Stage, and Gastrulation

A zygote undergoes rapid cell divisions (cleavage) to form a spherical ball of cells: the blastula; this will further develop into a blastocyst.

Answer:

Sustainability is important for many reasons including: Environmental Quality – In order to have healthy communities, we need clean air, natural resources, and a nontoxic environment. ... We need clean air, natural resources, and a nontoxic environment.

Answer:

esophagus

Explanation:

your answer is right

Answer:

esophagus,

Explanation:

You are correct in your original answer.

Answer:

13. A group of Roaches moving in a group

14. Stepping on the Roaches to kill them

Answer: First image shows 3 groups with 14 Roaches in each group moving towards an human.

Second image shows the human stepping on the middle group of roaches.

Explanation: Roaches are nasty. Get an exterminator, ya nasty.

Answer:

The term extinction's dictionary meaning, is the process of when a species, plant, or any other term for animal family, goes extinct. In more, basic terms, it means when a certain species of animal dies out completely.

This can happen due to several reasons, some being massive natural disasters. Others die out due to an unknown predator entering an ecosystem in which it doesn't belong, therefore disbalancing it.

Examples of extinct animals are Dinosaurs, but their exact reason for going extinct is unkown, there are only theories.

There are also many animals in danger of going extinct, for example Bees.

Hope this information could be of use to you!

Answer:

A pond is an area filled with water, either natural or artificial, that is smaller than a lake. Ponds can be created by a wide variety of natural process (. on floodplains as cut off river channels, by glacial processes, by Pearl and

formation, in coastal dune systems, by beavers) or they can simply be isolated depressions (such as a kettle hole, vernal pool, prairie pothole or

Answer:

The pond contains both. It contains things like water, rocks, mud, sand, available oxygen, temperature, pH, etc. It also contains living items like bacteria, fish, frogs, etc. That's an ecosystem.

Explanation:

Answer:

D. Liver.

Explanation:

Blood from the small intestine is taken to the liver. For this reason, we can state that if S. typhi enters the bloodstream through the small intestine, the first organ it would affect would be the liver.

The liver receives blood from the small intestine to be able to remove all toxins or useless substances from this blood and regulate how the distribution of nutrients contained in the blood will be to other parts of the body.

Answer:

Hotspots from under the ground

Explanation:

There are three different situations where an volcano can form. A divergent boundary, where two tectonic plates move away from each other, subduction boundary, where one of the tectonic plates moves under the other, and a hotspot. Scientists are not completely sure how hotspots form.

Answer:

Hi, there your answer is a community

Explanation:

Answer:

The nuclear division that forms haploid cells, which is called meiosis, is related to mitosis. As you have learned, mitosis is the part of a cell reproduction cycle that results in identical daughter nuclei that are also genetically identical to the original parent nucleus.

Explanation:

The nuclear division that forms haploid cells, which is called meiosis, is related to mitosis. As you have learned, mitosis is the part of a cell reproduction cycle that results in identical daughter nuclei that are also genetically identical to the original parent nucleus.

Answer:

In general, mitosis (division of the nucleus) is preceded by the S stage of interphase (during which the DNA is replicated) and is often followed by telophase and cytokinesis; which divides the cytoplasm, organelles and cell membrane of one cell into two new cells containing roughly equal shares of these cellular components.

Explanation:

The different stages of Mitosis all together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two genetically identical daughter cells.Meiosis results in four haploid daughter cells by undergoing one round of DNA replication followed by two divisions. Homologous chromosomes are separated in the first division.

Answer:

It is possible to make this categorization as follows:

Roses = Class

Rose samples = instances

Explanation:

In a very direct and objective way, we can state that classes are models that define how a given situation will be handled, which methods will be used to manage it and the objectives that will be established in that situation. Instances, on the other hand, are elements taken from the interior of classes, which contain factors that make them up. Based on this, we can determine that, in the case of the above question, roses are classes and rose samples are instances.

Answer:

paki sagot po ito hahahaha

Answer:

What is the question ?

Explanation:

Answer:

it's not my fault if you are wrong or not it's your test

Answer:

When it comes to determining the severity of a wound, assess the wound is crucial to determine the appropriate plan of care. The critical steps in assessing the wound include: location, stage, undermining/tunneling, measurement, tissue type/color, drainage/odor, anatomical structures, periwound skin and pain.

Answer:

proteins and codons

Explanation:

Answer:

1 is a

2 is c

3 is d

4 is e

5 is b

Answer:

A is Population. B Gene. C Species D Heterozygous. E Allele

Answer: The haploid number of an organism is 20. What is the diploid number of the organism?

Explanation:  Because haploid means half and diploid means twice of the half, if the haploid number is 20, the diploid number will be 20 2 = 40.

hope this helped best of luck mate! :)

Answer:

Explanation:

Using the concept of de Broglie wavelength under relativistic conditions to determine the spatial limits for electron range.

de Broglie wave-length [tex]\lambda = \dfrac{h}{p}[/tex]

where;

h = plank's constant

p = momentum of particle which is expressed as:

[tex]p = \dfrac{\sqrt{k^2+2kmc^2}}{c}[/tex]

replacing the expression for (p) into [tex]\lambda = \dfrac{h}{p}[/tex], we have:

[tex]\lambda = \dfrac{h}{\dfrac{\sqrt{k^2 +2kmc^2}}{c}}[/tex]

[tex]\lambda = \dfrac{hc}{\sqrt{k^2+2kmc^2}} --- (1)[/tex]

here;

c = velocity of light = 3 × 10⁸ m/s

h = 4.13 × 10⁻¹⁵ eV.s

i.e.

hc = (4.13 × 10⁻¹⁵ eV.s)(3 × 10⁸ m/s)

hc = 1240 eV.m

The electron's rest energy (mc²) = 0.511 × 10⁶ eV

For the elctrons;

the minimum accelerated voltage = 40kV

the maximum accelerated voltage = 100 kV

the minimum K.E of the electron K = eΔV

K = e × 40 kV

K = 40 KeV

K = 40 × 10³ eV

From equation (1);

[tex]\lambda = \dfrac{hc}{\sqrt{k^2 +2kmc^2}}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(40 \times 10^3 \ eV)^2 +2(40 \times 10^3 \ eV)(0.511 \times 10^6 \ eV})}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{\sqrt{((1600000000) +(80000\times 511000))eV}}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{\sqrt{((1600000000) +(40880000000)eV}}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(42480000000) \ eV}}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{206106.769 \ eV}}[/tex]

[tex]\lambda = 0.062 \ nm[/tex]

[tex]\mathbf{\lambda = 6.20 \ pm}[/tex]

The maximum K.E of the electron K = eΔV

K = e × 10 kV

K = 10 KeV

K = 100 × 10³ eV

From equation (1);

[tex]\lambda = \dfrac{hc}{\sqrt{k^2 +2kmc^2}}[/tex]

[tex]\lambda = \dfrac{1240 \ eV.nm}{\sqrt{(100 \times 10^3 \ eV)^2 +2(100 \times 10^3 \ eV)(0.511 \times 10^6 \ eV})}[/tex]

[tex]\lambda = 0.037 \ nm[/tex]

[tex]\mathbf{\lambda = 3.70 \ pm}[/tex]

As a result, the spatial limits for the electron's range span from 6.02 pm to 3.70 pm.

Quando os espanhóis desembarcaram em 1531, o território do Peru era o núcleo da civilização Inca altamente desenvolvida. Centrado em Cuzco, o Império Inca estendeu-se por uma vasta região, estendendo-se do sudoeste Equador ao norte do Chile .... Em 1532, eles chegaram ao país, que chamaram de Peru.

When the Spanish landed in 1531, Peru's territory was the nucleus of the highly developed Inca civilization. Centered at Cuzco, the Inca Empire extended over a vast region, stretching from southwest Ecuador to northern Chile... . In 1532, they arrived in the country, which they called Peru.

#CarryOnLearning

#BrainliestBunch

-BrainliestUser

Answer:

46%

Explanation:

Answer:

second option

Explanation:

brainly keeps marking my explanation as inappropriate?; had to delete it entirely

The sneezing is release of air that helps the body to get rid of irritants in our nose and throat, like allergens, dirt, and dust.

Coughing is by forcing the air out of the lungs with high pressure, to clear the throat of these foreign particles.

Your Answer will be D. Monocytes

[tex] \frak{hope \: it \: helps \: you.....}[/tex]

Answer:

The largest cells in the blood that leave the bloodstream to become macrophages are the

Monocycles