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lesya692 [45]
2 years ago
10

SOMEBODY PLEASE HELP ME ITS URGENT I NEED A PARAGRAPH THIS IS THE ONLY THING THEY GAVE ME WILL MARK BRAINLIEST​

Biology
1 answer:
AfilCa [17]2 years ago
3 0

Answer: Magnolia is a large genus of about 210 flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae. It is named after French botanist Pierre Magnol. Magnolia is an ancient genus. Appearing before bees did, the flowers are theorized to have evolved to encourage pollination by beetles. To avoid damage from pollinating beetles, the carpels of Magnolia flowers are extremely tough. Fossilized specimens of M. acuminata have been found dating to 20 million years ago, and of plants identifiably belonging to the Magnoliaceae date to 95 million years ago. Another aspect of Magnolia considered to represent an ancestral state is that the flower bud is enclosed in a bract rather than in sepals; the perianth parts are undifferentiated and called tepals rather than distinct sepals and petals. Magnolia shares the tepal characteristic with several other flowering plants near the base of the flowering plant lineage such as Amborella and Nymphaea.

Explanation:

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The bones in the front limbs of many mammals are similar in their structure and arrangement. What term is used to describe physi
Serggg [28]

The correct answer is; D

Homologous structures is the term used to describe physical similarities between related species that indicates a common ancestry.

Homologous structures are structures that have the same form or functions in different animals, indicating that the animals have evolved from a common ancestor. Homologous structures usually appear very similar in form but it may or may not have the same function in the different animals that are suggested to be related. The bones in the front limbs of many different mammals (such as humans, deer and bats) which are similar in their structure and arrangement are homologous structures.

3 0
3 years ago
The solute potential of a plant cell is -10 bar, and its pressure potential is 3. The plant cell is placed into a solution with
Nesterboy [21]

The water potential of the cell would be -7 bar and thus, water will move from the cell to the surrounding solution.

Recall that:

Water potential = pressure potential + solute potential

For the plant cell, solute potential = -10, pressure potential = 3

Water potential of the cell = 3-10

                                          = -7 bar

The water potential of the cell is -7 bar while that of the surrounding solution is -10 bar. Thus, the cell has a higher water potential than the surrounding solution.

Recall that water usually moves from the region of high to the region of low water potential. Therefore, water will move from the cell to the surrounding solution.

More on water potential can be found here: brainly.com/question/23855783

6 0
2 years ago
In alzheimer's disease patients, amyloid plaques develop that contain misfolded beta-amyloid proteins. based on this observation
Anuta_ua [19.1K]
Based on this observation you would predict that the MISFOLDED BETA AMYLOID PROTEINS COULD NOT BE REFOLDED BY THE CHAPERONE PROTEINS.
Chaperon proteins are proteins which assist newly formed proteins to form correctly. A protein that is already mis-folded can not be refolded by the chaperone proteins.
8 0
3 years ago
The hereditary material in corn plants can be altered by scientist so the plants produce more corn. which term identifies this p
Slav-nsk [51]

Answer:

Genetic engineering

Explanation:

So there's Environmental degradation ,Ecological succession

Genetic engineering , Selective breeding . and so all the other ones aren't related to the materiel in corn so that makes it Genetic engineering ing

6 0
2 years ago
What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes fro
tatuchka [14]

Answer:

Red tide occurs in patches of water where certain species of dinoflagellates flourish.

Explanation:  

Red tides refer to the noticeable microalgae proliferation that can be recognized for being a big spot in the sea of a characteristic coloration. This phenomenon is caused by two microalgae groups: diatoms and dinoflagellates, both part of phytoplankton.

Red tides occur when certain environmental factors -such as temperature, light, nutrients availability, ph, etcetera- favor the overproduction of these organisms. These species produce toxins that turn to be dangerous for other animal species that feed on them.

Because these microorganisms produce pigments, their accumulation on the sea surface can be noticed as reddish, brown, or greenish color spots of variable extension.

4 0
2 years ago
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