During the development of a chordate embryo, a ________ develops along the back of the embryo.a. notochord
c. dorsal fin
b. gill slit
d. zygote

Answers

Answer 1

Answer: The answer is a. notochord.

The notochord develops along the back of the embryo. It derives from the endoderm during the gastrulation. It extends along the anteroposterior axis of the embryo.

Among the other choices, a zygote could not be the right answer because an embryo eventually develops from the zygote. A dorsal fin is not along the whole back of the embryo, and gill slit is usually on the side of the shark head.

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What is the reason offspring of the organism Hydra often appear exactly the same as their parents?

3 plants (flora), 5 animals (fauna), 1 scavenger and 1 decomposer that live in the Namib Desert.

Answers

Here are some example of organisms that live in the Namib Desert :

Plants
- Saguaro Cactus
- Brittle bush
- Triangle-leaf Bursage

Animals
- Tarantula
- Barking Gecko
- Scorpion
- Jackal
- Desert Hawks

Scavenger
Namibia Vulture

Decomposer
desert ant

Hope this helps

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.

Learn more about Nephron here:

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An average fungus a has cell walls
b contains chloroplyll
c is immobile
d both a and c

Answers

its d and both thats the answer

As a result of meiosis, a gamete receives 1) a double set of the parent's chromosomes 2) two double sets of the parent's chromosomes 3) a single set of the parent's chromosomes 4) a different set from the parent's chromosomes

Answers

4) A different set from the parent's chromosomes since meiosis forms gametes, the recombination will create a new set of chromosomes.

A group of interdependent organisms and nonliving factors they depend on is the definition of a(n) _____. biome
ecosystem
habitat
niche

Answers

A group of interdependent organisms and nonliving factors they depend on is the definition of an ecosystem.

The answer is an ecosystem.

The ecosystem is a group of interdependent organisms and non-living factors they depend on. The group of interdependent organisms is called biotic factors, and non-living factors are abiotic factors. These two factors interact each other.A biome is a region with animals and plants with a common characteristics due to a similar climate.Habitat is an area inhabited by a particular species.Niche is the role and position of species in the environment.

Which branch of Earth science includes the study of the stars?