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3 years ago

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

Biology

2 answers:

Harrizon [31]3 years ago

8 0

The correct answer is C. Gametes

sveticcg [70]3 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.

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Active transport requires _E_ __ __ __ __ __ to move molecules across

denpristay [2]

Answer:

Cellular Energy

Explanation:

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration. Cellular energy is required to acheive this movement.

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2 years ago

which molecule involved in protein synthesis was mentioned in our molecule selves but not in your DNA at work ?

AfilCa [17]

Answer:

tRNA

Transfer ribonucleic acid (tRNA) is a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein. tRNAs function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule.

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2 years ago

The scientific method provides the framework for all scientific research, including nutrition science. Choose the statement belo

Andrews [41]

Answer:

1) d. observe phenomenon; generate hypothesis, conduct experiment, accept, reject, or modify hypothesis.

C. A study that compares a aroup of people with diabetes to a similar aroup of people without diabetes is an example of a case-control study.

Explanation:

Scientific method is a step by step procedure ranging from observing a problem to actual experimentation that aims at investigating a problem. The steps involved in the scientific method are as follows:

a)observe phenomenon; This precedes every experiment in the scientific method.

b) generate hypothesis: This is a testable explanation given as a possible solution to the observed problem.

c) conduct experiment: The hypothesis is tested via experimentation.

d) accept, reject, or modify hypothesis: Based on the result of the experiment, the hypothesis can be rejected, accepted or even modified.

Question 2:

Case control study is a type of study design that uses or compares a group of affected individuals (by a disease) called CASES and unaffected individuals called CONTROL. In this case, A study that compares a group of people with diabetes (cases) to a similar aroup of people without diabetes (control) is an example of a case-control study.

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3 years ago

Glucose and oxygen make what?

horsena [70]

It makes Carbon dioxide

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2 years ago

What is the function of the endoplasmic reticulum?

Eddi Din [679]

The rough endoplasmic reticulum also known as RER is covered in ribosomes and helps produce most of the proteins. Smooth endoplasmic reticulum also known as SER does not have these ribosomes, and it is almost solely for producing lipids.

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3 years ago