?Which is the order of organisms from the shortest life cycle to the longest?firefly → moss → pea plant
moss → pea plant → firefly
firefly → pea plant → moss
pea plant → firefly → moss

Answers

Answer 1
Answer:

Answer:

The correct answer is firefly → pea plant → moss.

Explanation:

Fireflies average life span is about 2 months for adults. Pea plants are annual plants and life span is of one year, it takes place from winter to the end of summer.

Moss life span is longer than pea plants and fireflies. Their life span depends on their species which can range from two to ten years. Generally, it considered as 10 years.

Thus, the correct answer is firefly → pea plant → moss.

Answer 2
Answer:

Answer:

c. Firefly, peaplant, moss.

Explanation:

Fireflies live for only a couple weeks. Pea plants live for about 100 days. Moss lives for about 4 months.


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A. Crossing over decreases genetic diversityB. During crossing-over, bits and pieces of the homologous chromosomes are exchangedC. Homologous chromosomes move to opposite ends of dividing cells D. The DNA of the diploid cell is copied​

A human cell that contains 22 autosomes and a Y chromosome must be(A) a zygote.
(B) a somatic cell of a male.
(C) a somatic cell of a female.
(D) a sperm cell.
(E) an egg cell

Answers

Well it can't be C because the DNA of female cells do not have any Y sex chromosomes. It also can't be E because of that same reason (the egg is made by the female, so it can only contain her genes).It can't be A because zygotes are diploid (because the egg and sperm, both haploid with 23 chromosomes, fuse together to double the amount of chromosomes), so a zygote would have to have 46 chromosomes, not 23 with 22 being autosomal and 1 being allosomal/sexual like the question states. And finally, it can't be B because somatic cells are also diploid and have 46 chromosomes. Another clue it can't be B is that the question states it has only a Y chromosome, which means the cell can't be diploid because a diploid cell has two allosomal chromosomes, either XX or XY.

Final answer:

A human cell with 22 autosomes and a Y chromosome is a male sperm cell. Sperm and egg cells contain 23 chromosomes, including one sex chromosome, while other cells typically have 46 chromosomes.

Explanation:

A human cell that contains 22 autosomes and a Y chromosome is (D) a sperm cell. Human cells are normally diploid, meaning they contain 46 chromosomes: 22 pairs of autosomes and a pair of sex chromosomes. Somatic cells (both male and female) have a total of 46 chromosomes, while a zygote, the cell formed after the fusion of an egg and a sperm, is also diploid. However, sperm and egg cells, which are haploid, carry only 23 chromosomes: 22 autosomes and either an X (in the case of an egg cell or a male sperm cell) or a Y (in the case of a male sperm cell) chromosome.

Learn more about Sex Chromosomes here:

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When Japan was first formed it was a _________ landform created from _________.A. primary; weathering
B. primary; tectonic activity
C. secondary; weathering
D. secondary; tectonic activity

Answers

B. primary; tectonic activity. Japan was a primary landform and the island was created when one tectonic plate moved in relation to the adjacent plate. The earth or land shifted upward from the surrounding ocean.

What could happen to the reproductive process of mosses during a drought? The flagellated sperm would not be able to swim to the eggs for fertilization. The flagellated sperm and eggs would go dormant until water was available. Mitosis in the sporophyte would cease and the reproductive cycle would stop. Meiosis in the sporophyte would cease and the reproductive cycle would stop.

Answers

The answer is The flagellated sperm would not be able to swim to the eggs for fertilization.

Their life cycle of mosses has alternation of generation - a haploid gametophyte and a diploid sporophyte. Gametophyte produces haploid gametes which fuse to form a diploid zygote. The zygote grows into diploid sporophyte which produces haploid spores. The spores grow into gametophyte and the cycle begins again.
Mosses require water for reproduction. Before fertilization, the sperm swims to an egg through the water. Therefore, mosses require water for successful fertilization. In drought periods, without water, the sperm cell could not swim to the egg cell.

Answer:

The flagellated sperm would not be able to swim to the eggs for fertilization.

Explanation: I took the test and got it right. :)

After being produced in the seminiferous tubules, sperm mature in the

Answers

The answer is epididymus.

Testicles contain seminiferous tubules, in which sperm is produced, and an epididymis, in which sperm matures. Mature sperm passes through the epididymis to the vas deferens. There, it combines with a liquid secretion from the seminal vesicles and continues through the prostate gland to the urethra. Sperm containing fluid is called semen and it is ejected through the urethra.

The _______ the time period during which a species lived and the _______ the distribution of its fossils, the better an index fossil the species is. shorter; narrower shorter; wider longer; narrower longer; wider

Answers

The index fossils have a shorter time period and wider geographical distribution of fossils.

What is an Index fossils?

An Index fossils refers to class of fossils that had a wide geographical distribution and they were present for a comparatively shorter period of time.

They helped in the construction of geological periods that are commonly used today.

Thus, the index fossils have a shorter time period and wider geographical distribution of fossils.

Therefore. the Option B is correct.

Read more about Index fossils

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Answer:

Option (2)

Explanation:

Index fossils are defined as those fossils that had a wide geographical distribution and they were present for a comparatively shorter period of time. They had great significance in the field of paleontology. It helped in the construction of geological periods that are commonly used today. It basically helped in forming the geological time scale. The age of the rocks in which these fossils were embedded is easily determined by using radioactive dating techniques.

Thus, the index fossils have a shorter time period and wider geographical distribution of fossils.

Hence, the correct answer is option (2).

Discuss how fossils provide evidence of change from the earliest life forms to those alive today

Answers

Animals, plants and other lfe forms are seen on other continents by moving or traveling

Answer: Fossils are preserved remains of ancient creatures, some of which represent lineages now extinct, and others from which existing species evolved. Fossils indicate evolution occurred as they indicate variations in bone structures of related animal species, and in plant forms and structures.