Nitrogen fixation- atmospheric nitrogen is assimilated into organic compounds especially by certain microorganisms as part of the nitrogen cycle.
Answer:
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
Explanation:
Given that:
The allele → R = Red beetles
The allele → B = Blue beetles
Since the gene color shows a codominant allele
The Red Beetle = RR
The blue beetles will be = BB
The heterozygous beetle will be = RB
∴
The punnet square showing the crossing of RB × RR is:
R B
R RR RB
R RR RB
The result shows that we have two red beetles and two heterozygous beetles.
Hence;
The genotypic frequency = 1:1
The phenotypic frequency = 1:1
Answer:
2c. Jamestown Settlement and the "Starving Time"
Explanation:
The first joint-stock company to launch a lasting venture to the New World was the VIRGINIA COMPANY OF LONDON. The investors had one goal in mind: gold. They hoped to repeat the success of Spaniards who found gold in South America.
In 1607, 144 English men and boys established the JAMESTOWN colony, named after King James I.
The colonists were told that if they did not generate any wealth, financial support for their efforts would end. Many of the men spent their days vainly searching for gold.
As a consequence, the colonists spent little time farming. Food supplies dwindled. MALARIA and the harsh winter besieged the colonists, as well. After the first year, only 38 of the original 144 had survived.
PLZ MARK BRAINLIEST
Answer:
because of the heatness and coldness of the object
Answer:
The gametophyte is smaller than and dependent on the larger sporophyte. : Seed bearing vascular plants
The gametophyte is independent and larger than the sporophyte. : Non vascular plants
The gametophyte is smaller than the sporophyte and can live independently of the sporophyte.: Seedless vascular plants
Explanation:
Seed bearing vascular plants are gymnosperms and angiosperms. These plants have dominant sporophyte that is independent of gametophyte and is capable of individual existence. Gametophyte generation in these plants is reduced and dependent on sporophyte. For example, the male gametophyte of angiosperms is pollen grain.
On the other hand, the non-vascular plants such as bryophytes and mosses have large and independent gametophyte on which the sporophyte depends for its survival. Pteridophytes are the seedless vascular plants and have separate gametophyte and sporophyte generations that are capable of independent survival.
