what , measurement unit represents volume?

(A) Kilometer
(B) square centimeter
(C) centigram
(D) liter

Answer:

Observable and objective

Explanation:

Scientific facts require repeatable experiments or proven qualities that can be repeated over and over again. If you do an experiment to verify a scientific fact, I should be able to do the same experiment and get the same result.

A scientific fact does not and cannot change.

Scientific facts are best describes by observable and objective. Thus, option A is correct.

Scientific thinking is a type of knowledge that includes intentional information seeking, including asking questions, testing hypothesis and making observations as well as recognizing pattern.

The scientific or scientists are clear as to the purpose at hand and questions at the issue. The scientific essential standards that should be implies on the elements of scientific thought such as clarity relevance depth, breath, logic and accuracy.

The scientific  thinking prefers to thinking about the content of science and the set of reasoning process.

The example of scientific thinking is that question information, conclusions and points of view which is strive to be accurate, relevant and precise.

Therefore,Scientific facts are best describes by observable and objective. Thus, option A is correct.

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Answer:

The product of meiosis II is four haploid gamete cells.

Explanation:

Answer:

Four haploid daughter cells.

Explanation:

Meiosis is the type of cell division in which  four haploid daughter cells are produced by the division of the single parent cell . The meiosis is generally occurs in case of gametic cells.

Meiosis is divided into Meiosis I and meiosis II. The meiosis II includes the prophaseII, metaphaseII, anaphaseII and telophase II. The sister chromatids get separated in anaphaseII that result in the formation of the haploid cells. This division is also known as reduction division as chromosomes number are reduced to half. Total four cells are formed at the end of meiosis II.

Thus, the answer is four haploid daughter cells.

Answer: increases in heart rate, blood pressure, blood glucose levels, and a general reaction of the sympathetic nervous system

The release of the hormone catecholamine can cause anxiety, fear, and panic.

Answer:

transition metals

Hello There!

The element in group 3 through 12 of the periodic table are the "Transition Elements" this should also be known as the transition medals.

These metals have electrons that can participate in the formation of chemical bonds.

Answer:

Following are the cell types related to the functions.

1- Contraction and relaxation are caused by smooth muscle cells. During contraction, smooth muscles become short in length and vice versa.

2- Neuron cells ( soma, axon, and dendrites) conduct electrochemical signals.

3- Lymphocytes, also known as white blood cells protect the body against different diseases.

4- In a cell, DNA is found in the chromosomes which are responsible for carrying the genetic material generation after generation.

Muscle cells contract and relax, nerve cells conduct electrochemical signals, immune cells fight diseases, and reproductive cells carry genetic material.

The cell types that match the functions are as follows:

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Hello There!

Before viruses can reproduce, they must infect a host cell.

Viruses need a way to enter the body before they can infect a host cell.

Before a virus can reproduce, it must infect a host cell. It then commandeers the host cell's machinery to create more of itself. The other options listed are not necessary for virus reproduction.

Before viruses can reproduce, they must C. infect a host cell. Viruses, unlike cells, lack the capacity to independently reproduce because they do not possess the required machinery to do so. Instead, they rely on host cells to reproduce. After a virus has entered a host cell (a process known as infection), it takes control of the host’s machinery and begins creating more viruses. None of the other options mentioned including, A. replicating the contents of their nucleus, B. undergoing binary fission, or D. initiating the cell cycle, are a prerequisite for viruses to reproduce.

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Answer:

A.electron transport chain

Explanation:

Well i really don't have an explanation

but hope it helps

^U^

The electron transport chain yields the most ATP during cellular respiration.

The electron transport chain is the final stage of cellular respiration, occurring in the inner mitochondrial membrane of eukaryotic cells. In this stage, the high-energy electron carriers NADH and FADH2, which are produced in earlier stages (glycolysis and the citric acid cycle), donate their electrons to a series of protein complexes within the electron transport chain.

As electrons pass through these protein complexes, energy is released and used to pump protons (H+) from the mitochondrial matrix to the intermembrane space, creating an electrochemical gradient across the inner mitochondrial membrane. This gradient stores potential energy.

The electrons then reach the final protein complex, cytochrome oxidase, where they combine with oxygen (O₂) to form water (H₂O). This reaction is critical for aerobic respiration since oxygen is the final electron acceptor.

The flow of protons back into the mitochondrial matrix through the ATP synthase enzyme is driven by the electrochemical gradient, and this flow of protons generates ATP. The process of ATP synthesis coupled to the flow of protons is called chemiosmosis.

The electron transport chain is highly efficient in generating ATP since it harnesses the energy from the movement of electrons and the pumping of protons across the inner mitochondrial membrane. It is estimated that around 26-28 molecules of ATP are produced from each molecule of glucose during aerobic cellular respiration, with the majority of ATP generated in the electron transport chain.

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Hello There!

"Cyclical Disturbance" is a disturbance that repeats over and over again.

Answer:

A disturbance that repeats over and over

Explanation:

A.P.E.X

Answer:

- Species A and C may have shared features from a common ancestor

- Species B and E may have shared features from a common ancestor

- Species A is more related to species B than species B is related to (any of the other species)

Explanation:

From this phylogenetic tree we can see that all five species have a shared distant, common ancestor, meaning that they all evolved from a single species. Because they all share the same common ancestor, there's every chance that the species A and C, or species B and E, share some features from their common ancestor even though they have become separate species and have been so for longer period of time. If we look at the present bonds, than we can see that the species A and B are much more closely related between each other than with any of the other species, and the same can be inferred for the species D and E.

Based on the phylogenetic tree, we can surmise that Species A and C, Species C and D, as well as Species B and E share features from common ancestors, with the shared features indicating the degree of relatedness and the likelihood of more recent common ancestry for each paired comparison.

Analyzing a phylogenetic tree helps us understand the evolutionary relationships between different species. When a scientist conducts a genetic analysis by determining the number of genetic similarities among species, certain patterns emerge. These patterns allow us to make educated statements about the relatedness of different species.

Based on the information given, we can deduce the following:

The interconnectedness reflected on the phylogenetic tree serves as a visual representation of these genetic relationships, where closer branches indicate more recent common ancestry and therefore greater genetic similarities.

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Answer:

D.  A mutation causing uncontrolled cell division

Explanation:

Cell division is controlled by various mechanisms. Any mutations in the genes regulating the cell division lead to uncontrolled cell division. Loss of control over the process of cell division leads to the formation of tumors.  

These tumors may cause cancer if they are transformed into malignant tumors. Hence, a mutation that causes loss of control over cell division is harmful.  

Answer:

D

Explanation:

Answer:

The basic idea of a hypothesis is that there is no pre-determined outcome. For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.

An hypothesis in science is pretty much what you think your project will do in the results.

Answer:

Iridium

Explanation:

A very hard, brittle, silvery-white transition metal of the platinum group, iridium is the second-densest metal (after osmium) with a density of 22.56 g/cm3 as defined by experimental X-ray crystallography.

Answer:

Iridium, with atomic number 77 and two stable isotopes, 191 and 193, is formed in a platinum alloy in the regular bar and the weight used for many years to define the meter and the kilogram.

What Iridium is?

Iridium is a very strong, fragile and thick metal and is very rare, too. Iridium is the most corrosion-resistant compound in the Periodic Table of Elements. It has the largest density of all the elements, too. Since it is resistant to deterioration, it is used to set standards for weights and measures.

Answer:

Option D, decreased variation in the shades of red because the only reason for variation was selection pressure

Explanation:

Certain factors which make an organism with in its species selective over other which provide an added leap of survival over others.  

Here, red color of male cardinal has only purpose and this purpose is to attract females thereby making themselves a selective species over other male species.  

Now, if somehow females start selecting males on the basis of some other characteristics then it is sure that the variations in the color of male cardinals will gradually slow down and eventually will stop as selective pressure was the only cause of their variation.

Hence, option D is correct

Answer:

There can be alternate explanations for the same evidence

Explanation:

The geology and the biology are two different scientific fields, thus the geologists and biologists have different focus and viewpoints when examining something. When a same experiment is done by scientists from two different fields, it is very likely that the conclusions would be different. The main reason for this is that both of them will have different view and methods to come to the conclusion, as their focus is on different things, or at least the approach is different.

Answer:

the answer is C.

Explanation:

Answer: Phloem

Explanation: In  higher plants, the phloem is a vascular tissue that carries sugars and other nutrients synthesized from the organs that produce them, to those in which they are consumed and stored. The phloem is organized in vascular bundles (see image below) , which are  longitudinal filaments of the conductive tissue associated with the water-conducting tissue or xylem. The vascular bundles are important structural organs of the herbaceous stems and the leaf nerves.

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I hope it could help you. Regards. María

Answer:

A "normal" fault moves.

Explanation:

Hope my answer has helped you!

Answer:

Klinefelter syndrome I took the plato test and got a 100

Explanation:

Good luck!

Answer:

B

Explanation:

The closer together that particular genes are to each other, the less likely that they will separate during crossing over and the more likely that they are inherited together by offspring – this is a test of linkage of genes. Genes on separate chromosomes are more likely to cross over than genes on the same chromosome.  

Answer:

C. Carbon dioxide and water

Explanation:

The Carbon and Oxygen from glucose come from Carbon Dioxide and the Hydrogen and Oxygen come from the water.

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Carbon dioxide and water two molecules do green plants use to make glucose.

In contrast to humans and other animals, plants can produce glucose through a process known as photosynthesis.

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

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Answer:

A

Explanation:

D) Examples of membrane proteins include ion channels, receptor proteins, and proteins that allow cells to connect to each other.

C) Almost every chemical reaction in a cell is catalyzed by a class of proteins called enzymes

B) Membrane proteins are the nanomachines that enable membranes to send and receive messages and to transport molecules into and out of cells and compartments.

A) Proteins that are anchored by dissolving in the bilayer core are said to be integral to the membrane. Lipids: Lipid-soluble substances (e.g. alcohol, chloroform) can dissolve into the bilayer and thus cross the membrane.

Keeping the cell from dissolving is not a functions of some membrane proteins.

Membrane proteins mediate processes that are fundamental for the flourishing of biological cells. Membrane-embedded transporters move ions and larger solutes across membranes, receptors mediate communication between the cell and its environment.

Integral membrane proteins are permanently embedded within the plasma membrane. They have a range of important functions. Such functions include channeling or transporting molecules across the membrane.

Membrane proteins provide temporary binding sites that guide cell migration and other cell-to-cell interactions. Some glycoproteins (proteins bonded to short chains of sugars) serve as identification tags that are specifically recognized by other cells.

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Answer:

b

Explanation:

For oxygen

Answer:

All seed plants share two characteristics. They have vascular tissue and use seeds to reproduce. In addition, they all have body plans that include leaves, stems, and roots. Most seed plants live on land.

Explanation:

Answer:All seed plants share two characteristics. They have vascular tissue and use seeds to reproduce. In addition, they all have body plans that include leaves, stems, and roots. Most seed plants live on land.

Explanation: i know cuz i know my boy

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➤ Answer

Gravity.

➤ Reason

We meet again old buddy, gravity. When solar systems form, they need resources. Dust is optimal, any sort of cosmic dust that can pull together. The gravity of these groups of cosmic dust combine together into one gravitational pull, attracting more dust. They eventually start to squeeze together, heating up. This process continues until it is so hot, the first nuclear fusion process begins, the point where matter is so hot, the atoms cannot repel each other when colliding in time, and instead they smash directly into each other, releasing massive bursts of energies, each like atomic bombs. One reaction produces more heat, more energy, which causes more fusion, and it's a huge chain reaction. The gravity of the gas is strong enough to maintain its shape, making a round sphere, which we call, stars, balls of burning energy. Stars are not solid objects, they are rather just clumps of really, really, r e a l l y hot cosmic dust, roaring with energy.

Planets form the same way, although on much smaller scales. There isn't enough dust to compact into a star, so they rather turn out to be large rocks. Stars that form with more dust, usually turn out to be bigger, but because they are bigger, they burn fuel more quickly, meaning the star will die a lot faster than a smaller, more calm and concentrated star. Newly form stars after there formation will slowly become more calm, and stay that way most of their lives. Then when they become old, they'll turn into violent supergiant stars, which eventually use their fuel, no longer have enough energy to maintain their gravity, and the fusion active core collapses under pressure, crunching the atoms together so quickly that they all collide together, resulting in the spectacular event we call a supernova, an explosion resulting from the core collapsing, ripping the outer layers of the star into space, which is what we call Novas, Nebulae that were formed from the remnants of what was once a star. If a star that is too small collapses after using its fuel, it won't explode. The core doesn't smash the atoms together fast enough to do this, instead, the core of the star simply crunches into a ball, called a white dwarf. The outer layers of the star no longer are being held onto the core, and expand into outer space, forming a nebula as well, which supply dust for new stars to form, therefore beginning the process of star formation once again. If a star that is large enough, collapses after using its fuel, the core crunches together so immensely fast, it warps the area so badly, it literally rips a tiny gap in space, which is like a hole in a pool, anything getting to close getting sucked in. Black holes are not the craziest idea really, everything has a limit, what do you think would happen if you compressed one of the greatest forces in the entire universe onto a spot the size of a pin head, yeah. Black holes as well are not solid or invisible objects, we just cannot see them in general. The black sphere that you once thought was the black hole, is actually just a simple result of a black hole. The escape velocity is greater than the speed of light, meaning that light doesn't travel fast enough to escape the pull of the black hole, so it is dragged back inside, and probably never seen again. Since the light never escapes, it doesn't reach our eyes, therefore, it is just a blind spot in our field of view, we can't see it.

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Answer: Gas and dust in a nebula is disturbed by an outside force.

Explanation:

Apex

Answer:

DNA

Explanation:

cell specilaisation is directected by instructions found in DNA

Answer:

Part A= 25.35 seconds

Part B= 30 gallons

Explanation:

Part A

26.1+24.3+32.8+18.2=101.4

101.4/4=25.35

Part B

2 hours=120 min

4x120=480/16=30

Answer:

46 Chromosomes.

Explanation:

Answer:

46 chromosomes are in human​

Answer:

Enzymes fulfill many important functions in our bodies. One of their main functions is to accelerate the rate of all chemical reactions that occur in our bodies. Besides, some enzymes help the body digest large molecules by breaking them into small pieces. They also help with the metabolism process.

In order to make a proper experiment and see does the plants, in this case the pumpkin seeds, need water to grow, there's several things that should be done. The pumpkin seeds should be planted in several pots, let's say eight pots. All pots should have the same size. The soil in all eight pots should be the exact same. Every pot should be exposed to the same amount of sunlight. Every pot should have the same temperature, thus they should all be kept in the same conditions. Half of the pots with pumpkin seeds will receive water, while the other half will not receive water at all. Every day checks should be made, and notes taken about each of the pots. If the pumpkin seeds in the pots that receive water grow, and the pumpkin seeds in the pots without any water don't, then we can say that the plants need water for their growth and survival.