What factors are responsible for the rapid migration of microglial processes to am injury site? inflammatory cytokines neurotropioc factors O anti-inflammatory cytokines Ochemokines

Q: While creation and presence of variation is directionless, natural selection is directional as it is...

A: The creation and presence of variation in an organism is directionless, as they occurs randomly and ...

Q: However the EPAS1 gene which increases the ability of red blood cells carry oxygen even in low envir...

A: Natural selection can be defined as a forces;which results in differential survival among genetic va...

Q: Obligate aerobes, faculative anaerobes, microaerophiles, obligate anaerobes, or aerotolerants grow o...

A: *obligate aerobes are the organisms that grows only in presence of  oxygen. *These organisms by cell...

Q: Statement 1: Embryonic stem cells are pluripotent which means that they are capable of differentiati...

A: Stem cells are characterized by the ability to form functional tissues, replicate indefinitely, as w...

Q: Imagine that you are a scientist studying species interactions in Kruger National Park, South Africa...

A: Species interactions show relationships between organisms of different species residing in the same ...

Q: Which among the following statement is NOT TRUE about the theory of inheritance? O A. Genes are tran...

A: Sutton and Boveri developed the Chromosomal Theory of Inheritance, which holds that chromosomes are ...

Q: 23. Which of the following is the functional unit of a body? A.mitochondria. b. cytoplasm. c.the cel...

A: Introduction: A cell is the smallest unit of life which has a definite structure and a specific func...

Q: A widow's peak hairline is dominant (W) to a straight hairline (w). Karen and her brother both have ...

A: Alleles are the alternative forms of a gene that are located on the same locus of a homologous chrom...

Q: 5.What is wrong ? the cell is a. Of two types 5. prokaryotic cell has a big nucleus. E. Eukaryotic h...

A: Answer :: The cell  All living organism or living thing that are composed of cells. The cell is also...

Q: 12 .Autolysis .What is wrong? A, destruction of whole cell by lysosomal enzymes b. occur after death...

A: Autolysis: It is a self-destruction activity that leads to the digestion of tissues of the body by s...

Q: Directions: Explain and give example for each type of reproductive isolating mechanisms. Pre-zygotic...

A: Prezygotic isolation mechanism do not allow the fertilization of eggs while postzygotic isolation do...

Q: 3. Ground Tissue *comprises the rest of the plant that is not dermal or vascular *used for photosynt...

A: Plants like animals are also comprised of different types of tissues and each tissue has specialized...

Q: The colligative properties depend on the concentration based on the solvent. True O False

A: The given statement is true . The colligative properties depend on the concentration based on the so...

Q: Give a brief description of each diagram. Gracilaria Porphyra

A: Red algae (Phylum Rhodophyta) is red colored algae. The red color of algae is attributed to the pres...

Q: Describe in detail all the steps needed to determine whether an Unknown bacteria has a Gram-positive...

A: Gram staining: Gram staining is a common technique used to differentiate two large groups of bacteri...

Q: Match the letters on the diagram below to the correct terms. 1. Glycoprotein E 2. Hydrophilic portio...

A: Introduction: Cell membrane is the outer covering of all cell but in plant cells, it is present belo...

Q: Why is genetic drift stronger in smaller than in larger populations?

A: Genetic drift is the change in gene pool of small population that takes place strictly by chance. It...

Q: wrist and ankle are type of Irregular bones O Long hollow bones O Cylindrical bones O Ribs O

A: ANSWER;-A) Irregular bones Explain;- Irregular bones are the type of wrist and ankle Short Bones Are...

Q: Which molecule would require facilitated diffusion to pass through the cell membrane? Carbon dioxide...

A: ANSWER;- Carbon dioxide Explain;- Facilitated diffusion, consequently, permits polar and charged ato...

Q: Coal miners inhale large quantities of fine coal dust when they are working in the mines. Over the y...

A: Alveolar ventilation: It is a process of gasses exchange between lung alveoli and the external envir...

Q: Defining and describing modified organism(GMOs)?

A: With the development in science and technology we are now able to do and develop products that were ...

Q: While creation and presence of variation is directionless, natural selection is directional as it is...

A: Crossing over during meiosis and random fusing of gametes result in creation and variety in a sexual...

Q: All grown up, Baby X fell madly in love with Baby Z and they decided to have children. What is the p...

A: To know the blood type of any individual ABO system is the best system .  There are 4 major types of...

Q: Answer the following questions for the trait of freckles. Freckles is dominant. If both parents are...

A: Introduction :  People with fair or light skin tone some times contain sports on their skin due to c...

Q: While creation and presence of variation is directionless, natural selection is directional as it is...

A: Variation is the change in allele frequency or differences in sequences of genes between individual ...

Q: 1. All hymenopterans have narrow waists. true/false 2. Trichopterans have scales on their wings.  ...

A: Answer 1st answer true 2nd answer false

Q: Sources of mutations exercise Match the mutational source type to the most likely description below....

A: This question based on mutation sources. A mutation is the changes of one or more gene that may caus...

Q: 5) Cystic fibrosis is caused by a gene on chromosome 7 and results in the build-up of mucus in the l...

A: Cystic fibrosis or (CF)- it is an inherited disorder that leads to severe damage to digestive system...

Q: 20 .Regarding connective tissues, all of the following is true except A.Blood is regarded as a conne...

A: Connective tissue is an important part of the muscle which ensures the connection among a different ...

Q: prc nt'

A: Scientist use the PCR technology to amplify small amounts of RNA from specimens into deoxyribonuclei...

Q: How do temperature affects enzyme functions?

A: Enzyme function depends upon various factors. One of the factors responsible for enzyme activity is ...

Q: ine that you are a scientist studying species interactions in Kruger National Park, South Africa. To...

A: As we know Darwin's proposed and provided the evidence that all species have evolved over time from ...

Q: Now try feeling for a “pulse” from a vein on the back of your forearm, the side opposite where you t...

A: Arteries Veins Arteries usually carry the blood which are oxygenated Veins carry the deoxygenated ...

Q: Many commercial herbicides act by inhibiting photosynthetic electron transport. They are investigati...

A: Herbicides are small molecules that inhibit specific molecular target sites in plant biochemical and...

Q: Trace a drop of blood from the left lateral forearm to the right medial forearm (skip pulmonary circ...

A: The circulatory system (cardiovascular system) pumps blood from the heart to the lungs for oxygen. T...

Q: Please match the descriptions to the numbers on the fetal circulation diagram below. 11 12 13 10. 14

A: Introduction Fetal circulation:- The purpose of fetal circulation is to provide oxygenated blood fro...

Q: Question 9 Match each section of a journal article with what you might find in that section. 1. Over...

A: References:- For a science fair project, a reference citation (also known as author-date citation) i...

Q: problem are we trying to avoid by using mutation and inversion? How does each approach accomplish

A: Answer :: Step 1 A change in the nucleotide sequence of a chromosome or genome is called mutation. T...

Q: Which of the following are examples of primary sources? Choose all that apply. A technical report ab...

A: Scientific literature is a type of literature which helps us to understand science.

Q: 3 .all of the following about endoplasmic reticulum is true except; A, Consists of two parts, rough ...

A: The endoplasmic reticulum is a membrane bounding organelle that helps to generate power for cellular...

Q: Match the sentence to where you would most likely find it within an article -- th results or discuss...

A: A research paper is a primary source of literature which tells us about a scientific process which h...

Q: Which is false about meiosis ? 2 A.Results in Daughter Cells with a full no. of chromosome. b Daught...

A: Introduction :-  

Q: 17. The outermost boundary of the cell is a .cytoplasm b.nuclear membrane C.plasma membrane d. none ...

A: Introduction: A cell is defined as the smallest, basic unit of life that is responsible for all of l...

Q: 6.11 Label the following flower parts on the image below: sepal, petal, pistil, stigma, style, ovary...

A: Angiosperms consist of flower which has versatile shapes and structures for pollination. Different p...

Q: Crosses between white and red flowered plants may result in pink flowered offspring. When a pink flo...

A: "Inheritance" is the process through which a child gets genetic information from his or her parents....

Q: QUESTION 12 When a drop of dye is placed in water, the dye particles move from the area where the dr...

A: Diffusion : The movement of particles from a region of higer concentration to a region of lower conc...

Q: Cellular Respiration 2 ATP 6 NADH 2 FADH 2 ATP 2 NADH 36 ATP ETHANOL MITOCHONDRIAL MATRIX MITOCHONDR...

A: Cellular respiration is a process by which chemical energy in the food is oxidized into energy in th...

Q: a) Figure 7 shows a sticky end that is cut by restriction enzyme. AAGCTT ATCGAA Enzyme K 3' Sticky e...

A: Restrictions digestion is a process where restrictions enzyme cut a specific sites of DNA. The cutti...

Q: Why would a high energy transition state be favored when it requires more activation energy in an en...

A:

Q: Statement 1: Gel electrophoresis separates macromolecules like DNA and proteins according to the cha...

A: A molecular technique commonly used for the separation of proteins based on mass is called SDS-PAGE ...