The ripened ovary of an angiosperm is a __________a. carpel.
b. fruit.
c. endosperm.
d. flower.

Answers

Answer 1

Answer: The ripened ovary of an angiosperm is a (b. Fruit)

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Use the models that you created in Lesson 2, Lab 1 to help you answer the following question. Compare the surface area to volume ratio of a large cell to that of a small cell.

Why does the ratio of surface area to volume increase with the decrease in cell size?

A. A larger cell has more surface area than volume.
B. A smaller cell has more surface area than volume.
C. A smaller cell has more volume than surface area.
D. A smaller cell has an equal ratio of surface area to volume

Answers

Answer:

Explanation:

This is a question more about understanding ratios than understanding cells.

A surface area to volume ratio (S/V) in a size-decreasing cell would increase due to a more significant loss in volume that in surface area. In reality, both decrease (surface area AND volume), but as we are talking about a ratio, this one would go up due to a more dramatic decrease in volume.

B. A smaller cell has more surface area than volume. This allows for more reactions to occur across the various membranes of the cell.

A vaccine puts into the body weakened/dead pathogenic material, which by itself is incapable of causing disease. How does this help to protect the body in the case of infection by a live pathogen?

Answers

During the process of vaccination, an attenuated pathogen is inserted into the body the organisms. The attenuated pathogen is able to provoke the primary immune response in the body of the organism without causing any harm.

Once the primary immune response is generated, the body creates a memory in form of antibody to the pathogen. After vaccination, if the pathogen infects, the body recalls the memory and generates a secondary immune response. The intensity of the secondary immune response is much higher than the primary one, so, as soon as the pathogen enter in the body, the antibodies against it are activated and result in defeating the infection.

For a better understanding purpose, the intensity of the primary and the secondary immune response is given in the figure:

Answer:

d. a vaccine causes the secretion of antibodies which remain in blood and fight the pathogen at the time of an infection.

Petroleum and coal can be mined from the continental shelf. True or false

Answers

The correct answer would be true. Petroleum and coal are mostly mined from the continental shelf. Most of the oil rigs are found and situated in this area. Gas/oil deposits are found in these areas since the ocean floor is known to exist a 100 million years ago which means deposits and fossil fuels are formed all through out those years.

Which words in this quote about personal essays from author Barry Lopez are examples of oxymoron?It is, I think, the rarest of leisure, hard work mixed with hard pleasure, to refine one's time of deep thought or light regard into the utterly self-absorbed and equally and abundantly outward-seeking shape of the personal essay—a story comprised of found fact, of analyzed emotion, of fictive memory.

A. hard work
B. hard pleasure
C. deep thought
D. outward-seeking

Answers

The words that are examples of oxymoron is : D. outward-seeking

This words could be considered as oxymoron because it's a figure of speech that contradicts the term that appear in the conjunction

hope this helps

Answer:

its B actually

Explanation:

wow brainy just recommends any body huh?

Why did seed production help plants move to land?

Answers

This increased the chance of growth and development of plants to spread.

When pollen grains land on the stigma of the correct species, they germinate. A pollen tube grows through the tissues of the flower until it reaches an ovule inside the ovary.

The nucleus of the pollen grain (male gamete) then passes along the pollen tube and joins with the nucleus of the ovule (the female gamete). This process is called fertilization.

After fertilization, the female parts of the flower develop into a fruit. The ovules become seeds and the ovary wall becomes the rest of the fruit.

Like chordates, all invertebrates have