In the alternation of generations life cycle fertilization requires two A. sporophytes. B. gametophytes. C. gametes. D. spores.

Biology

2 answers:

Harrizon [31]4 years ago

8 0

The correct answer is C. Gametes

sveticcg [70]4 years ago

6 0

Answer:

C. gametes

Explanation:

The alternation of generations is a process of reproductive cycles that occur in plants, algae and cnidarians. The main characteristic of this type of reproduction is that it happens in two different generations alternating in a single life cycle of the organisms.

For this process to occur in plants, it is necessary that there is a generation that produces spores (sporophytic generation) and a generation that produces gametes (gametophytic generation). The generation that produces spores should produce diploid cells, while the generation that produces gametes must produce haploid cells.

When haploid cells arise from the germination of spores (which are haploid), the phase called gametophytic begins in the body, where the formation of two gametes (one male and one female) occurs. These gametes will merge during fertilization, generating a diploid embryo, which will undergo several mitoses until it becomes an adult that is capable of forming spores.

You might be interested in

Following questions

aev [14]

Answer:

A carbon dioxide and water

4 0

3 years ago

What is an environmental habitat in your own words ?

Natasha_Volkova [10]

Answer:

Explanation:

A habitat (which is Latin for "it inhabits") is an ecological or environmental area that is inhabited by a particular species of animal, plant or other type of organism. ... Human habitat is the environment in which human beings exist and interact. For example, a house is a human habitat, where human beings sleep and eat.

3 0

3 years ago

Read 2 more answers

"match the terms below on the left with the definitions to their right. do this by inserting into" principal-agent problem

nata0808 [166]

The principal-agent problem could be defined by saying that it is an agent who benefits from the effort of others without having even participated in the joint effort. It is a concept that is to be linked more broadly to the problems of information asymmetry.

The term moral hazard refers to a type of market failure where the existence of insurance against a certain risk increases the likelihood of the occurrence of the event causing the risk.

The right answer is:
Principal-agent problem matches with 2
Asymmetric information matches with 3
Adverse selection matches with 4
Moral hazard matches with 1

4 0

3 years ago

The original cell had the genetic code AaSs. What is the genetic makeup of the daughter cells?

olga55 [171]

Assuming that the og cell is going through mitosis and not meiosis (sexual cell division) then the genetic code of the og cell and the daughter cells are the same. Thus, the genetic code of the daughter cells is AaSs.

6 0

3 years ago

Increased force output of the synergists for hip extension to compensate for the weakened gluteus maximus is an example of which

olga_2 [115]

Answer:

b. Synergistic dominance

Explanation:

The stabilizing muscles will always be synergistic, since only from the synergies (hence the term synergist) that arise from joint work is efficient and controlled movement possible. However, not all synergists will be stabilizers. Stabilizer will be one that, thanks to the geometric arrangement of its fibers, will have the ability to maintain alignment in the joint and stable the axis of rotation.

In the case of knee extension, we would have as stabilizers all the antagonists who, because the flexion axis is virtual and not physical, must maintain the stability of said axis. If the axle were physical, such as the wheel in a horse carriage, or on a skateboard through the bearings, the antagonistic muscles would not be necessary for this purpose, because the fixed axis would maintain the position. Since the joints of living beings do not have a fixed physical axis, it is the muscles themselves, specifically the antagonists, who must be responsible for maintaining the stability of the joint creating a virtual axis on which rotation occurs.

3 0

4 years ago