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Explanation:

Complete answer:

A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.

Answer:

The answer is C.

Explanation:

I just took the test and it was right.

Answer:

Skin is one of the largest organs of the body. It is recognized as an organ because it consists of several types of tissues that function together.

Explanation:

got it offline

1.) cell membrane

2.) Cytoplasm

3.) ribosomes

4.) Nucleus, chromosomes

5.) nuclear membrane

6.) Rough Endoplasmic reticulum

7.) Smooth Endoplasmic Reticulum

8.) Golgi Apparatus

9.) Lysosomes

10.) Vacoules

11.) Mitochondrias, cristae

Answer:

we know that diaphragm is a dome shaped structure that is present under the lungs. The diaphragm pushes the lungs to drawing air into the lungs. when it relaxes it leaves the air.

Answer:

the answer would be d) the lab doesn't tell

Answer:

i'd say water, food and maybe space cause they need air...

Answer: Neutron

Neutrons have no charge and are neutral

Answer:

A

Explanation:

Environmental factors determine all genetic traits. Why? So the organism that is gaining the trait has a better chance of survival or to be more specific a better chance at adapting to their environment. Let me give you an example, the long necks on a giraffe. The diet of a giraffe consist of mostly acacia leaves which are leaves that are on the top of a tree. This environmental factor is why giraffes have long neck so they can get to the leaves of the tree. If they did not have long necks giraffes probably would´nt survive

Now let me give you an example that is related to evolution

Evolution is the change in the characteristics of a species over several generations

An example of this happening can be shown in mosquitoes

People were using DDT (which is an insecticide used to kill bugs) on mosquitoes to harm them. Many of the mosquitoes had died but the remaining were able to produce offspring that had mutations. These mutations caused the mosquitoes to be resistant to the insecticide. This shows another example of environmental factors having an influence on genetic traits. The DDT spray was the environmental factor and the mosquito being able to produce offspring that were resistant the the insecticide is the outcome from the influence.

Answer:

Correct answer is C. The cell will not be replaced when it is damaged

Answer:

Adaption is needed for a living thing to strive in a system, its how they survive.

Explanation:

Adaptation is needed to survive. This includes climate, predators around it etc. For example polar bears. Polar bears adapt to their environment by growing thick coats of fur. These coats keep the bears warm.Without it they would die.

The following information should be considered related to the difference about the water in each cup

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Answer:

shoot system, root system

Explanation:

Answer:

No

Explanation:

because thier are so many type of cell

Answer:

Guanine

Explanation:

C and G

T and U both go together in DNA.

Answer:

A

Explanation:

An individual always has two alleles for the same gene (one on each chromosome). The statement which is true is "a person's two alleles may be the same, and they may be different". Thus, the correct option is C.

An allele can be referred to as an alternative form of a gene. An allele is located at a specific position on a specific chromosome. These alleles can be passed on from the parents generation to their offspring through the process of sexual reproduction.

The presence of two identical alleles at a particular gene locus (chromosome) is referred to as a homozygous genotype. This may include two normal alleles or two alleles that have the same variant. The presence of two different alleles at a particular gene locus is referred to as a heterozygous genotype.

Therefore, the correct option is C.

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Answer:

theres no image

Explanation:

Answer:

Interphase 2 is that the 2 cells that have been already split split again. making 4

Answer:

Aside from reducing fish stocks, unsustainable fishing practices can have other negative impacts on the marine environment. For example, some fishing techniques such as dredging and trawling can cause widespread damage to marine habitats and organisms living on the sea floor

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➣ If humans will continuesely kill mass of fishes for their own benefit it will disturb the ecosystem of the maine habitat . In the places like ponds and rivers the quantity of fishes is not that much and if human will kill catch all the fishes the growth of alage plant will increase rapidly as there is no organism is there to eat them and the big predator also stave for hunger as there is no food for them

.hope it helps u

Answer:

no who say this no harmful for humans

Answer:

Microwaves are a safe, effective, and highly convenient cooking method. There is no evidence that they cause harm — and some evidence that they are even better than other cooking methods at preserving nutrients and preventing the formation of harmful compounds.

Answer:

Since “DENSITY FACTORS” affect a population in the same ways as others. I will say DISEASE & FOOD SUPPLIES

The following are density-dependent factors are:

b. disease

c. food supply

Density dependant elements can have either a positive or a negative relationship to populace size. With a positive relationship, these restricting variables increment with the size of the populace and breaking point development as populace size increments.

This includes disease, predation, and food supply.

Thus, correct options are b and c.

Find more information about Density-dependent factors here:

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