Select all of the questions that can be tested with a scientific investigation.

During interphase, the cell grows and the nuclear DNA is duplicated. Interphase is followed by the mitotic phase. During the mitotic phase, the duplicated chromosomes are segregated and distributed into daughter nuclei.

Answer:

The allies for the purple color of the flowers of pea

Explanation:

Punnett square is a square diagram which is used to predict the genotype of the offspring produced by particular cross.

Let P and p be the alleles of the gene responsible for the flower colors in a plant.

The genotype of both the parents is given as heterozygous that is, Pp.

Two types of gametes would be formed P and p.

Answer:

a gamete of this organism will have half that number (50), the haploid number of 25 chromosomes.

Explanation:

The layer that most likely to occur is layer 1

Answer: They are right it is answer #1 because it is the most compact part of the rock/rocks for lithification.

Answer:

microscope

Explanation:

Indeed, the very discovery of cells arose from the development of the microscope: Robert Hooke first coined the term “cell” following his observations of a piece of cork with a simple light microscope in 1665

Answer:

the police

Explanation:

Answer:

OSHA

OSHA is a federal agency that was founded alongside the Occupational Safety & Health Act of 1970. The OSH Act sought to protect the rights of workers and to offer long-term solutions for regulating workplace hazards.

Explanation:

This Should Be It...........

Answer:

I need help too

Explanation:

Answer:

I think that it is pouring all chemicals down the drain but it might be the spatula one.

Explanation:

You should not pour all the chemicals down the drain because it is not a lab safety procedure.

Answer: 1) The travels of Marco Polo

2) Columbus reaches the Western Hemisphere

3) Captain Cook maps Newfoundland

4)First photos of the Earth from space

Explanation:

Marco Polo was in the 13th century

Christopher was in the 15th century

Captain Cook was in the 18th Century

And the Photos from earth were from the 20th Century

Explanation:

The  traits produced by convergent evolution different from homologies in many ways .One of which is the traits produced by the convergent evolution does not have evolved from common ancestral trait, whereas in homologies it does have evolve from common ancestral trait.  This one is  the major difference

Given question is incomplete as it lacks the group of choices. However, the group of choices associated with the question is as follows:

1. Organisms must display variation.

2. A trait must increase reproduction.

3. A trait must directly affect metabolism.

4. A trait must increase survival.

5. A trait must be able to be passed on to future generations.

Answer:

The correct answer is : option 3. A trait must directly affect metabolism.

Explanation:

The process that leads to change or adaption in the species or a population of the organism known as natural selection. In this process population exhibits the variation in the population due to the change or adaption.

This variation refers to the better traits and increased reproductive ability, suited to the environment than others which is also known as survival of the fittest as they increase their survival in comparison to the other population or species. Natural selection carries traits that are passed on to one generation to another.

Thus, the correct answer is option Is : 3. A trait must directly affect metabolism.

Answer:

protein, carbohydrates, and fat

Answer:

Carbohydrates, protien and fats

Explanation:

Three main nutrients used for energy are carbohydrates, protein, and fats, with carbohydrates being the most important source. Your body can also use protein and fats for energy when carbs have been depleted. When you eat, your body breaks down nutrients into smaller components and absorbs them to use as fuel.

Answer:

Destruction of animals' habitats. Some examples of this are... tree logging, slash and burn farming, and deforestation. Humans also hunt animals to extinction either for sport or food.

Explanation:

Answer:

This question appears incomplete but The correct option is the last option

Explanation:

Cell membranes are made up of a lipid/phospholipid bilayer in which each layer consists of an hydrophilic head (water loving) and a hydrophobic tail (water fearing). The hydrophobic tail of each layer is oriented inward and the hydrophilic heads are oriented outward so the cell can interact with water molecules inside (the cytoplasm) and outside the cell environment. This orientation forms a critical part of the function of the cell membrane that makes it a selectively permeable barrier that regulates what goes in and out of the cell.

Answer: I think it’s B???

Explanation: Ok maybe it’s B. during the Kreb’s cycle and stuff similar to that, after the enzyme is used, I believe it is produced as a byproduct? You don’t have to use this is you don’t want to. Please do not use it if you are not sure. Sorry....

Answer:

plant cells have a cell wall, chloroplasts, and vacuoles while animal cells don't.

Explanation:

Answer:

a) x4        b) Eyepiece x10 Objective x40

Explanation:

a) x4 magnification

The 4x objective lens has the lowest power and, therefore the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective.

b)

Eyepiece Lens: the lens at the top of the microscope that you look through. The eyepiece is usually 5x, 10x or 15x power.

Objective Lenses: Usually you will find 3 or 4 objective lenses on a microscope. They almost always consist of 4x, 10x, 40x and 100x powers.

To get 400 we need to use a combination that, multiplied together, will give us 400.

If the eyepiece lens is 10x then 400/10 = 40

So if we use the 10x Eyepiece lens with the 40x Objective Lens we will get a total magnification of x400.

Answer:

show a pic

Explanation:

trust

Answer:

Autotrophs

Explanation:

Food chain is a step by step feeding process in an ecosystem where an organism producer is been feed on by another organism that depends on it

called consumer and it is also feed on by predator. Producer usually produce their food its includes plants, Algae, phytoplankton.

The energy level moved from the producer to the last organism on the chain.

Autotrophs are the same as producer and an Algae food chain is an example of aquatic food chain where algae serves as primary source of energy(Producer) and its been feed upon by mosquito larvea and larvea by frogs and frogs are eaten by racoon.

Answer:The SI unit of mass is the kilogram

Explanation:

Answer:

Kilogram (Kg)

Explanation:

Answer:

It's slowing down because of the time increase

Explanation:

As shown by the graph, as more time passes, the velocity slowly decreases. This means that as the time goes on, the car is slowing down.

Answer: It's speeding up because of the straight line

Explanation:

Answer:

A

Explanation:

Animal cells do not have cell wall,

only plants cells do.

I.

1. a minus-charged particle of an atom..... Electrons

2. a neutral (no charge) particle found in the nucleus of an atom..... Neutrons

3. a positive-charged particle in the nucleus of an atom.... Protons

4. a system of comparing atomic masses to carbon.... Relative mass

II. The atomic number of an atom is equal to the number of Protons.

III. The atomic number is always equal to the atomic mass. False.

IV. Atomic mass minus atomic number =number if neutrons.

V. A proton in the nucleus of an atom has an electrical charge of: +ve (positive).

VI. The atomic number of calcium is 20. This number means that calcium has 20 protons. The atomic mass of calcium is 40. How many neutrons does calcium have?

Answer: No of neutrons = atomic mass-atomic number

No of neutrons= 40-20=20 neutrons.

VII. Helium has an atomic number of 2. This number also means that helium has 2 protons. The atomic mass of helium is 4. How many neutrons does helium have?

Answer: No of neutrons = atomic mass-atomic number

No of neutrons= 4-2=2 neutrons.

VIII. The relative atomic mass of a proton or neutron is 1.

IX. The relative atomic mass is always a mass that is compared to the element Corbon.

X. Name the three kinds of sub-atomic particles found in an atom: electron, proton and neutron

Answer:

5 sec

Explanation:

125m

25 m/s

= 5 sec

It will take 5 seconds for an object traveling at 25 m/s to reach a distance of 125 meters.

Speed = distance / time

Time = distance / speed

Distance = 125m

Speed = 25 m/s

Time = 125 / 25 s

Time = 5 s

The rate is the time fee of exchange of the distance. If 'D' is the distance of an item in some time 'T', the rate is the same too, s = D/T. It has equal devices as speed.

Velocity, being a scalar amount, is the fee at which an object covers distance. The average speed is the distance (a scalar amount) according to the time ratio.

Learn more about the speed and distance here https://brainly.com/question/4931057

#SPJ2

Answer:

Hydrogen bonding allows water to have a <strong> surface tension than many other liquids

Explanation:

Answe water can't be pulled it has to be pushed.

Explanation: