What is the role of natural selection in evolution?A. Natural selection is a specific mechanism of evolution in which the heritable traits (characteristics) help an organism to survive his generation.

B. Natural selection is a specific mechanism of evolution in which the heritable traits (characteristics) help an organism to survive and reproduce successfully.

C. Natural selection is a specific mechanism of evolution in which all acquired traits (characteristics) help an organism to survive and reproduce successfully.

Answers

Answer 1

Answer: Good morning!

B. Natural selection is a specific mechanism of evolution in which the heritable traits (characteristics) help an organism to survive and reproduce successfully.

Natural selection works from mutations that relate better to the environment in which the organism is inserted, thus surviving the most adapted groups.

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What are fused in the production of monoclonal antibodies?A. Tumour cells and T-cells
B. Tumour cells and B-cells
C. B-cells and T-cells
D. Antibodies and antigens

Answers

I would say D I think that's right but I'm not so sure but I believe D

A hypothesis must be

Answers

A hypothesis MUST be testable.

A hypothesis must be testable and falsifiable

The functional unit of the kidney where blood is filtered, water and other dissolved substances are reabsorbed, and waste is sent out to be excreted.A. ureter

B. alveolus

C. urethra

D. nephron

Answers

Ans. (D). nephron.

Kidneys are bean-shaped organs of excretory system that make urine and help in elimination of wastes from the body. Nephrons can be defined as structural and functional units of kidneys, made up of renal tubes and renal capsules.

Process of filtration, re-absorption, and secretion take place in nephrons to filter blood, make urine and excrete waste products out from the body with urine.

Thus, the correct answer is option (D).

Final answer:

The functional unit of the kidney involved in the filtration, reabsorption, and excretion processes is called the nephron.

Explanation:

The functional unit of the kidney where blood is filtered, water and other dissolved substances are reabsorbed, and waste is sent out to be excreted is the nephron.

Each kidney in the human body contains about one million nephrons. The nephron is a tiny tubular structure composed of a renal corpuscle (which is the site for blood filtration), and a renal tubule (where reabsorption occurs). Waste from this filtration is then collected and departs the kidney through the ureter, to be excreted from the body as urine.