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:
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.
(B) a somatic cell of a male.
(C) a somatic cell of a female.
(D) a sperm cell.
(E) an egg cell
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.
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.
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B. primary; tectonic activity
C. secondary; weathering
D. secondary; tectonic activity
Answer:
The flagellated sperm would not be able to swim to the eggs for fertilization.
Explanation: I took the test and got it right. :)
The index fossils have a shorter time period and wider geographical distribution of 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
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).
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.