30 POINTS! Explain the 3 differences in the chart below:

Biology

1 answer:

Daniel [21]3 years ago

5 0

All of them are structures found in different plants with the role in reproduction.

Flowers are found in flowering plants (angiosperms). Gametophyte (sexual phase within the life cycle of plants) develops inside the flower (e.g. ovules are located internally). Seeds are inside the protective shell.

The cones are the organs of plants, found in the conifers (Pinophyta), that contain the reproductive structures. The cones are woody structures and the seeds are naked in them.

Spores are also structures for the reproduction. The spores might be included in asexual reproduction: haploid and unicellular which develops into a new organism via mitosis, when the conditions are favorable. They can be part of the sexual reproduction in seed plants when they are included in the formation of more complex structures such as the seeds and pollen grains.

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Which of these conditions indicate positive feedback has occurred?

aleksklad [387]

Answer;

A) Blood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases.

Explanation;

-With negative feedback, the output reduces the original effect of the stimulus. While in a positive feedback system, the output enhances the original stimulus.

-Negative feedback is the most commonly used feedback loop in the body. Negative feedback is used to negate or counteract a stimulus without completely eradicating it.

-One key difference between the two feedback is that positive feedback loops are used to eradicate a stimulus. Another key difference is that responses through positive feedback become more amplified over time. So once a stimulus activates a positive feedback loop it is not turned off until the stimulus is completely removed.

8 0

3 years ago

Systemic fungal infections (e.g. Candida and Cryptococcus) and tuberculosis (Mycobacterium) are on the rise. One of the reasons

miss Akunina [59]

Answer:

a) the molecules can be found in the picture below

b) (i) isocitrate lyase ( isocitrate to glyoxylate)

(ii) malate synthase (glyoxylate to malate)

c) Glyoxylate cycle do no exist in animals

Explanation:

b) in the glyoxylate cycle isocitrate lyase helps in conversion of isocitrate to glyoxylate. Also, helps in conversion of glyoxylate to malate by using malate synthase.

c) Glyoxylate cycle do no exist in animals, it only exist in plants and bacteria. This is because they can produce glucose from acetyl-CoA in required amounts.They have the ability to change acetyl-CoA from fat into glucose. But in animals, this mechanism is not possible.