The plant roots being underground respire by using which mechanism?
(b) The amount of CO2 be the lowest in which one and why?

Answer:

23 chromosomes

Explanation:

you just have to divide the original number by 2.

Answer:

True

Explanation:

If photosynthesis ceased, there would soon be little food or other organic matter on Earth, most organisms would disappear, and Earth's atmosphere would eventually become nearly devoid of gaseous oxygen.

Answer:

There is no attached photo in this question, however, the question can still be answered. The question also lacks options; they are

A.Comparative B. Descriptive. C. Controlled. D. Experimental

The answer is D. Experimental investigation

Explanation:

There are three types of investigations in science namely: descriptive, comparative, and experimental investigations. Experimental investigations are those investigations that has to do with the testing of how one variable affects another.

In an experimental investigation, a variable called INDEPENDENT VARIABLE is changed to effect a response in another variable called DEPENDENT VARIABLE. In this question, a group of students is testing to see if earthworms prefer rough or smooth surface. Hence, they are testing to see how texture of a surface (rough or smooth), which is the independent variable affects the preference of earthworm. Hence, it is an EXPERIMENTAL VARIABLE.

Answer:

The answer is Comparative

Answer: The answer is A - Genes.

As water evaporates off salt water, the water gets saltier, and dissolved oxygen in the water reduces.

There is an inverse relationship between the dissolved oxygen in water and the concentration of solute.

Thus, as water evaporates off the tidal pool, available free oxygen decreases accordingly just as the water becomes more salty.

In other words, the more water in a solution, the more free oxygen, and vice versa.

More on dissolved oxygen and water can be found here: https://brainly.com/question/26113345

Answer:

Yes and No.

Explanation:

There are those good bacteria like Lactobacillus in the drink Yakult that could even help improve digestion and build immunity. However, consumption of 'bad bacteria' or toxins like Salmonella can cause food poisoning.

Answer:b

Explanation:

Because amino acids are to small

The picture that shows an atom with 4 valence electrons is that of Beryllium (option B).

Valence electrons are any of the electrons in the outermost shell of an atom that is capable of forming bonds with other atoms.

The valence electrons of an atom are found in the outermost shell of the atom's electronic configuration.

According to this question, four images are displayed above. Beryllium is the element that shows that it contains four valence electrons in its electronic configuration.

Therefore, the picture that shows an atom with 4 valence electrons is that of Beryllium.

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Answer:

The atoms of liquid upon contact experience a strong force of attraction. Due to this attraction, the atoms of liquid resist the flow of motion.

Explanation:

Answer: hi frind!!

The atoms of liquid upon contact experience a strong force of attraction. Due to this attraction, the atoms of liquid resist the flow of motion.

Explanation:

=^.^= text me!

Answer:

The hair produced by the cell will not have the BLACK COLORATION

Explanation:

In the process of gene expression, a gene, which is the segment of DNA that encodes useful products, is transcribed into a mRNA molecule. The mRNA is then translated into a protein, which is responsible for the observed traits or characteristics.

In this case, a human hair cell is unable to transcribe the DNA sequence (gene) coding for black hair color (trait). This means that the gene that encodes hair color protein cannot be transcibed, hence, the protein will not be produced in that cell.

If the protein responsible for black hair color is not produced in a cell, the hair produced by such a cell will not be BLACK.

Answer:

i would say solar energy

Answer:

The presence of mineralised fungal or saprolegnia mycelia in the Gobi bones significantly enhances our understanding of the burial environment, which, based on the physicochemical conditions required for the precipitation of mineral phases, must have changed from semi-dry during the first ferromanganese stage

Answer:

The answer is option one or two. I'm struggling with this question too.

Explanation:

respiration can continue the process of corbon dioxiod..

Answer:

mitosis

Explanation:

Answer:

1. There is improved medical knowledge which makes people live longer with better medicines.

2. Better standard of living. The middle-class was increasing and people moved to cities. Fewer people starved and more access to technologies.

3. New technologies. Better farm equipment led to more food being produced. With more food, people could live longer.

4. Improved sewer systems/sanitation. Back then people threw their wastes out on the streets. This caused diseases and many children can not make it to adulthood.

5.A better understanding of science and other subjects.  Scientists developed vaccines and antibiotics to fight diseases and improve human health.

Answer:

D.) lysosomes break down lipids, carbohydrates, and proteins

Answer:

In the process of sexual reproduction, haploid gametes produced by the meiotic division fuses to form a diploid zygote. A child inherits half of the genetic material from each parent. So, it may be they look alike but they are not identical to their parents.

Explanation:

I'm not an expert tho so if I'm wrong then dang

Answer:

Combination of the parents genetics

Explanation:

Every human being has 23 chromosome pairs (not regarding the chromosome pair for the gender). This mean that a human being has 23 chromosomes from their father and 23 chromosomes from their mother and by having those chromosomes in pairs the individual can have both the genetics of the parents and therefore have a mixture of both!

Answer:

One Copy

Explanation:

Answer:

Answer:

Mucus is a protective substance that's excreted from multiple areas of the body, such as the mouth, sinuses, throat, lungs, stomach, and intestines

Explanation:

Goblet cells produce mucus which traps dust, dirt and bacteria to prevent them entering the lungs. The major function of mucus is to protect the lung through mucociliary clearance against foreign particles and chemicals entering the lung.

Explanation:

Invasive species cause harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. ... Invasive species can change the food web in an ecosystem by destroying or replacing native food sources.

Answer:

Because antibiotics only fight bacteria, and not viruses, they're usually ineffective against colds. Sometimes a cold may lead to a bacterial infection, though. In that case, antibiotics would have a benefit if they were able to prevent that kind of infection

Explanation:

Brainliest pls :3

Answer: They are unhelpful for treating cold Because antibiotics only fight bacteria, and not viruses, they're usually ineffective against colds. Sometimes a cold may lead to a bacterial infection, though. In that case, antibiotics would have a benefit if they were able to prevent that kind of infection.

Based on the data provided, the frequency of heterozygous bats within the population is 0.32

Allele frequency can be defined as the frequency in which a given allele for a gene occurs in a population.

Allele are alternate copies of a gene.

Alleles can be either dominant, recessive or co-dominant.

The allele frequency is given by the Hardy-Weinberg equilibrium equation given below:

For the vampire bats:

p = 0.2

then; q = 0.8

p^{2} = 0.04

q^{2} = 0.64

The frequency of heterozygous bats within the population = 2pq

2pq = 1 - (0.04 + 0.64)

2pq = 0.32

Therefore, the frequency of heterozygous bats within the population is 0.32

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Answer:

C. clean air and water

Explanation:

The reason why this is NOT a benefit of biodiversity is because Plants and Animals really like to mess things up, you know, they really just don't care about what they're destroying, so if there  is a crocodile in the water, then it won't care about just playing with some mud, that's why, they make the water dirty, specially while attacking land animals that come to drink the water. Another thing is that they can just p.o.o.p which will not make anything better.

so hence, your answer is C. Clean air and water

Thanks!

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Control of pest is not a benefit of Biodiversity. So, the correct option is B.

Biodiversity is defined as the variety of life we ​​would find in an area the diversity of microorganisms such as animals, plants, fungi, and bacteria that make up our natural world. Each of these species and organisms work together in an intricate web-like ecosystem to maintain balance and support life.

Biodiversity or biological diversity is described as the variety and variability of life on Earth as a measure of variation at the genetic, species and ecosystem levels. At the highest level, one can look at all the different species on the entire.

Thus, control of pest is not a benefit of Biodiversity. So, the correct option is B.

Learn more about Biodiversity, here:

https://brainly.com/question/13073382

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